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  • Being a more attractive job candidate - Certs XOR Degree

    - by Zephyr Pellerin
    I'm currently working in an IT position, where I do helpdesk stuff, and predominantly security related issues/consulting (In the loosest sense of the term) In-House and for Service-Contract clients (as the only/acting CCSP [I guess I should say only person with Cisco experience] in my organization). I've professionally written Kernel Mode drivers for a gaming company. Among other things that I'm proud to put on a resume. I think of myself as very reasonably qualified as a System Administrator, With excellent Cisco experience, among other things I think would make a good addition to almost any IT staff in need of a new employee. However, Something has always tripped me up - Human Resources. Let me explain, I decided to skip the university route - I'm immensely glad that I did, The computer science graduates that I've met and work with rarely know much of anything about Computers (Until they gain some 'real' experience), Even when asked about Theoretical Computing fundamentals they can rattle something off about Turing Completeness but rarely do they understand the mathematical underpinnings. In short, I think instead of going to college, I'd rather pick up some real world experience. However, Apparently, Employers rarely think the same way. A quick perusal of jobs through the standard job search engine yields nothing short of a conspiracy to exclude anyone without 'A Bachelors Degree in Computer Science or Equivalent'. Interviews I've had in the past have almost always been entangled with - 1. My Age (Which I can't really change) and 2. Lack of Degree. Employers frequently disregard the CCNA/CCSP, The experience I've gained through internships, My extensive experience in x86 assembly and C, among so many other things I like to think are valuable to employers - In lieu of the fact that I don't have a piece of paper. So, AS AN EMPLOYER - Is it even worth working on my CCIE? Or should I pad my resume with certifications that are easier to acquire (Like CISSP, MSCE, Network+, etc.). Or should I ditch the whole idea and head back to get a Mathematics or CS degree?

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  • Cold Start

    - by antony.reynolds
    Well we had snow drifts 3ft deep on Saturday so it must be spring time.  In preparation for Spring we decided to move the lawn tractor.  Of course after sitting in the garage all winter it refused to start.  I then come into the office and need to start my 11g SOA Suite installation.  I thought about this and decided my tractor might be cranky but at least I can script the startup of my SOA Suite 11g installation. So with this in mind I created 6 scripts.  I created them for Linux but they should translate to Windows without too many problems.  This is left as an exercise to the reader, note you will have to hardcode more than I did in the Linux scripts and create separate script files for the sqlplus and WLST sections. Order to start things I believe there should be order in all things, especially starting the SOA Suite.  So here is my preferred order. Start Database This is need by EM and the rest of SOA Suite so best to start it before the Admin Server and managed servers. Start Node Manager on all machines This is needed if you want the scripts to work across machines. Start Admin Server Once this is done in theory you can manually stat the managed servers using WebLogic console.  But then you have to wait for console to be available.  Scripting it all is quicker and easier way of starting. Start Managed Servers & Clusters Best to start them one per physical machine at a time to avoid undue load on the machines.  Non-clustered install will have just soa_server1 and bam_serv1 by default.  Clusters will have at least SOA and BAM clusters that can be started as a group or individually.  I have provided scripts for standalone servers, but easy to change them to work with clusters. Starting Database I have provided a very primitive script (available here) to start the database, the listener and the DB console.  The section highlighted in red needs to match your database name. #!/bin/sh echo "##############################" echo "# Setting Oracle Environment #" echo "##############################" . oraenv <<-EOF orcl EOF echo "#####################" echo "# Starting Database #" echo "#####################" sqlplus / as sysdba <<-EOF startup exit EOF echo "#####################" echo "# Starting Listener #" echo "#####################" lsnrctl start echo "######################" echo "# Starting dbConsole #" echo "######################" emctl start dbconsole read -p "Hit <enter> to continue" Starting SOA Suite My script for starting the SOA Suite (available here) breaks the task down into five sections. Setting the Environment First set up the environment variables.  The variables highlighted in red probably need changing for your environment. #!/bin/sh echo "###########################" echo "# Setting SOA Environment #" echo "###########################" export MW_HOME=~oracle/Middleware11gPS1 export WL_HOME=$MW_HOME/wlserver_10.3 export ORACLE_HOME=$MW_HOME/Oracle_SOA export DOMAIN_NAME=soa_std_domain export DOMAIN_HOME=$MW_HOME/user_projects/domains/$DOMAIN_NAME Starting the Node Manager I start node manager with a nohup to stop it exiting when the script terminates and I redirect the standard output and standard error to a file in a logs directory. cd $DOMAIN_HOME echo "#########################" echo "# Starting Node Manager #" echo "#########################" nohup $WL_HOME/server/bin/startNodeManager.sh >logs/NodeManager.out 2>&1 & Starting the Admin Server I had problems starting the Admin Server from Node Manager so I decided to start it using the command line script.  I again use nohup and redirect output. echo "#########################" echo "# Starting Admin Server #" echo "#########################" nohup ./startWebLogic.sh >logs/AdminServer.out 2>&1 & Starting the Managed Servers I then used WLST (WebLogic Scripting Tool) to start the managed servers.  First I waited for the Admin Server to come up by putting a connect command in a loop.  I could have put the WLST commands into a separate script file but I wanted to reduce the number of files I was using and so used redirected input (here syntax). $ORACLE_HOME/common/bin/wlst.sh <<-EOF import time sleep=time.sleep print "#####################################" print "# Waiting for Admin Server to Start #" print "#####################################" while True:   try:     connect(adminServerName="AdminServer")     break   except:     sleep(10) I then start the SOA server and tell WLST to wait until it is started before returning.  If starting a cluster then the start command would be modified accordingly to start the SOA cluster. print "#######################" print "# Starting SOA Server #" print "#######################" start(name="soa_server1", block="true") I then start the BAM server in the same way as the SOA server. print "#######################" print "# Starting BAM Server #" print "#######################" start(name="bam_server1", block="true") EOF Finally I let people know the servers are up and wait for input in case I am running in a separate window, in which case the result would be lost without the read command. echo "#####################" echo "# SOA Suite Started #" echo "#####################" read -p "Hit <enter> to continue" Stopping the SOA Suite My script for shutting down the SOA Suite (available here)  is basically the reverse of my startup script.  After setting the environment I connect to the Admin Server using WLST and shut down the managed servers and the admin server.  Again the script would need modifying for a cluster. Stopping the Servers If I cannot connect to the Admin Server I try to connect to the node manager, in case the Admin Server is down but the managed servers are up. #!/bin/sh echo "###########################" echo "# Setting SOA Environment #" echo "###########################" export MW_HOME=~oracle/Middleware11gPS1 export WL_HOME=$MW_HOME/wlserver_10.3 export ORACLE_HOME=$MW_HOME/Oracle_SOA export DOMAIN_NAME=soa_std_domain export DOMAIN_HOME=$MW_HOME/user_projects/domains/$DOMAIN_NAME cd $DOMAIN_HOME $MW_HOME/Oracle_SOA/common/bin/wlst.sh <<-EOF try:   print("#############################")   print("# Connecting to AdminServer #")   print("#############################")   connect(username='weblogic',password='welcome1',url='t3://localhost:7001') except:   print "#########################################"   print "#   Unable to connect to Admin Server   #"   print "# Attempting to connect to Node Manager #"   print "#########################################"   nmConnect(domainName=os.getenv("DOMAIN_NAME")) print "#######################" print "# Stopping BAM Server #" print "#######################" shutdown('bam_server1') print "#######################" print "# Stopping SOA Server #" print "#######################" shutdown('soa_server1') print "#########################" print "# Stopping Admin Server #" print "#########################" shutdown('AdminServer') disconnect() nmDisconnect() EOF Stopping the Node Manager I stopped the node manager by searching for the java node manager process using the ps command and then killing that process. echo "#########################" echo "# Stopping Node Manager #" echo "#########################" kill -9 `ps -ef | grep java | grep NodeManager |  awk '{print $2;}'` echo "#####################" echo "# SOA Suite Stopped #" echo "#####################" read -p "Hit <enter> to continue" Stopping the Database Again my script for shutting down the database is the reverse of my start script.  It is available here.  The only change needed might be to the database name. #!/bin/sh echo "##############################" echo "# Setting Oracle Environment #" echo "##############################" . oraenv <<-EOF orcl EOF echo "######################" echo "# Stopping dbConsole #" echo "######################" emctl stop dbconsole echo "#####################" echo "# Stopping Listener #" echo "#####################" lsnrctl stop echo "#####################" echo "# Stopping Database #" echo "#####################" sqlplus / as sysdba <<-EOF shutdown immediate exit EOF read -p "Hit <enter> to continue" Cleaning Up Cleaning SOA Suite I often run tests and want to clean up all the log files.  The following script (available here) does this for the WebLogic servers in a given domain on a machine.  After setting the domain I just remove all files under the servers logs directories.  It also cleans up the log files I created with my startup scripts.  These scripts could be enhanced to copy off the log files if you needed them but in my test environments I don’t need them and would prefer to reclaim the disk space. #!/bin/sh echo "###########################" echo "# Setting SOA Environment #" echo "###########################" export MW_HOME=~oracle/Middleware11gPS1 export WL_HOME=$MW_HOME/wlserver_10.3 export ORACLE_HOME=$MW_HOME/Oracle_SOA export DOMAIN_NAME=soa_std_domain export DOMAIN_HOME=$MW_HOME/user_projects/domains/$DOMAIN_NAME echo "##########################" echo "# Cleaning SOA Log Files #" echo "##########################" cd $DOMAIN_HOME rm -Rf logs/* servers/*/logs/* read -p "Hit <enter> to continue" Cleaning Database I also created a script to clean up the dump files of an Oracle database instance and also the EM log files (available here).  This relies on the machine name being correct as the EM log files are stored in a directory that is based on the hostname and the Oracle SID. #!/bin/sh echo "##############################" echo "# Setting Oracle Environment #" echo "##############################" . oraenv <<-EOF orcl EOF echo "#############################" echo "# Cleaning Oracle Log Files #" echo "#############################" rm -Rf $ORACLE_BASE/admin/$ORACLE_SID/*dump/* rm -Rf $ORACLE_HOME/`hostname`_$ORACLE_SID/sysman/log/* read -p "Hit <enter> to continue" Summary Hope you find the above scripts useful.  They certainly stop me hanging around waiting for things to happen on my test machine and make it easy to run a test, change parameters, bounce the SOA Suite and clean the logs between runs so I can see exactly what is happening. Now I need to get that mower started…

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  • Windows Azure Evolution &ndash; Caching (Preview)

    - by Shaun
    Caching is a popular topic when we are building a high performance and high scalable system not only on top of the cloud platform but the on-premise environment as well. On March 2011 the Windows Azure AppFabric Caching had been production launched. It provides an in-memory, distributed caching service over the cloud. And now, in this June 2012 update, the cache team announce a grand new caching solution on Windows Azure, which is called Windows Azure Caching (Preview). And the original Windows Azure AppFabric Caching was renamed to Windows Azure Shared Caching.   What’s Caching (Preview) If you had been using the Shared Caching you should know that it is constructed by a bunch of cache servers. And when you want to use you should firstly create a cache account from the developer portal and specify the size you want to use, which means how much memory you can use to store your data that wanted to be cached. Then you can add, get and remove them through your code through the cache URL. The Shared Caching is a multi-tenancy system which host all cached items across all users. So you don’t know which server your data was located. This caching mode works well and can take most of the cases. But it has some problems. The first one is the performance. Since the Shared Caching is a multi-tenancy system, which means all cache operations should go through the Shared Caching gateway and then routed to the server which have the data your are looking for. Even though there are some caches in the Shared Caching system it also takes time from your cloud services to the cache service. Secondary, the Shared Caching service works as a block box to the developer. The only thing we know is my cache endpoint, and that’s all. Someone may satisfied since they don’t want to care about anything underlying. But if you need to know more and want more control that’s impossible in the Shared Caching. The last problem would be the price and cost-efficiency. You pay the bill based on how much cache you requested per month. But when we host a web role or worker role, it seldom consumes all of the memory and CPU in the virtual machine (service instance). If using Shared Caching we have to pay for the cache service while waste of some of our memory and CPU locally. Since the issues above Microsoft offered a new caching mode over to us, which is the Caching (Preview). Instead of having a separated cache service, the Caching (Preview) leverage the memory and CPU in our cloud services (web role and worker role) as the cache clusters. Hence the Caching (Preview) runs on the virtual machines which hosted or near our cloud applications. Without any gateway and routing, since it located in the same data center and same racks, it provides really high performance than the Shared Caching. The Caching (Preview) works side-by-side to our application, initialized and worked as a Windows Service running in the virtual machines invoked by the startup tasks from our roles, we could get more information and control to them. And since the Caching (Preview) utilizes the memory and CPU from our existing cloud services, so it’s free. What we need to pay is the original computing price. And the resource on each machines could be used more efficiently.   Enable Caching (Preview) It’s very simple to enable the Caching (Preview) in a cloud service. Let’s create a new windows azure cloud project from Visual Studio and added an ASP.NET Web Role. Then open the role setting and select the Caching page. This is where we enable and configure the Caching (Preview) on a role. To enable the Caching (Preview) just open the “Enable Caching (Preview Release)” check box. And then we need to specify which mode of the caching clusters we want to use. There are two kinds of caching mode, co-located and dedicate. The co-located mode means we use the memory in the instances we run our cloud services (web role or worker role). By using this mode we must specify how many percentage of the memory will be used as the cache. The default value is 30%. So make sure it will not affect the role business execution. The dedicate mode will use all memory in the virtual machine as the cache. In fact it will reserve some for operation system, azure hosting etc.. But it will try to use as much as the available memory to be the cache. As you can see, the Caching (Preview) was defined based on roles, which means all instances of this role will apply the same setting and play as a whole cache pool, and you can consume it by specifying the name of the role, which I will demonstrate later. And in a windows azure project we can have more than one role have the Caching (Preview) enabled. Then we will have more caches. For example, let’s say I have a web role and worker role. The web role I specified 30% co-located caching and the worker role I specified dedicated caching. If I have 3 instances of my web role and 2 instances of my worker role, then I will have two caches. As the figure above, cache 1 was contributed by three web role instances while cache 2 was contributed by 2 worker role instances. Then we can add items into cache 1 and retrieve it from web role code and worker role code. But the items stored in cache 1 cannot be retrieved from cache 2 since they are isolated. Back to our Visual Studio we specify 30% of co-located cache and use the local storage emulator to store the cache cluster runtime status. Then at the bottom we can specify the named caches. Now we just use the default one. Now we had enabled the Caching (Preview) in our web role settings. Next, let’s have a look on how to consume our cache.   Consume Caching (Preview) The Caching (Preview) can only be consumed by the roles in the same cloud services. As I mentioned earlier, a cache contributed by web role can be connected from a worker role if they are in the same cloud service. But you cannot consume a Caching (Preview) from other cloud services. This is different from the Shared Caching. The Shared Caching is opened to all services if it has the connection URL and authentication token. To consume the Caching (Preview) we need to add some references into our project as well as some configuration in the Web.config. NuGet makes our life easy. Right click on our web role project and select “Manage NuGet packages”, and then search the package named “WindowsAzure.Caching”. In the package list install the “Windows Azure Caching Preview”. It will download all necessary references from the NuGet repository and update our Web.config as well. Open the Web.config of our web role and find the “dataCacheClients” node. Under this node we can specify the cache clients we are going to use. For each cache client it will use the role name to identity and find the cache. Since we only have this web role with the Caching (Preview) enabled so I pasted the current role name in the configuration. Then, in the default page I will add some code to show how to use the cache. I will have a textbox on the page where user can input his or her name, then press a button to generate the email address for him/her. And in backend code I will check if this name had been added in cache. If yes I will return the email back immediately. Otherwise, I will sleep the tread for 2 seconds to simulate the latency, then add it into cache and return back to the page. 1: protected void btnGenerate_Click(object sender, EventArgs e) 2: { 3: // check if name is specified 4: var name = txtName.Text; 5: if (string.IsNullOrWhiteSpace(name)) 6: { 7: lblResult.Text = "Error. Please specify name."; 8: return; 9: } 10:  11: bool cached; 12: var sw = new Stopwatch(); 13: sw.Start(); 14:  15: // create the cache factory and cache 16: var factory = new DataCacheFactory(); 17: var cache = factory.GetDefaultCache(); 18:  19: // check if the name specified is in cache 20: var email = cache.Get(name) as string; 21: if (email != null) 22: { 23: cached = true; 24: sw.Stop(); 25: } 26: else 27: { 28: cached = false; 29: // simulate the letancy 30: Thread.Sleep(2000); 31: email = string.Format("{0}@igt.com", name); 32: // add to cache 33: cache.Add(name, email); 34: } 35:  36: sw.Stop(); 37: lblResult.Text = string.Format( 38: "Cached = {0}. Duration: {1}s. {2} => {3}", 39: cached, sw.Elapsed.TotalSeconds.ToString("0.00"), name, email); 40: } The Caching (Preview) can be used on the local emulator so we just F5. The first time I entered my name it will take about 2 seconds to get the email back to me since it was not in the cache. But if we re-enter my name it will be back at once from the cache. Since the Caching (Preview) is distributed across all instances of the role, so we can scaling-out it by scaling-out our web role. Just use 2 instances and tweak some code to show the current instance ID in the page, and have another try. Then we can see the cache can be retrieved even though it was added by another instance.   Consume Caching (Preview) Across Roles As I mentioned, the Caching (Preview) can be consumed by all other roles within the same cloud service. For example, let’s add another web role in our cloud solution and add the same code in its default page. In the Web.config we add the cache client to one enabled in the last role, by specifying its role name here. Then we start the solution locally and go to web role 1, specify the name and let it generate the email to us. Since there’s no cache for this name so it will take about 2 seconds but will save the email into cache. And then we go to web role 2 and specify the same name. Then you can see it retrieve the email saved by the web role 1 and returned back very quickly. Finally then we can upload our application to Windows Azure and test again. Make sure you had changed the cache cluster status storage account to the real azure account.   More Awesome Features As a in-memory distributed caching solution, the Caching (Preview) has some fancy features I would like to highlight here. The first one is the high availability support. This is the first time I have heard that a distributed cache support high availability. In the distributed cache world if a cache cluster was failed, the data it stored will be lost. This behavior was introduced by Memcached and is followed by almost all distributed cache productions. But Caching (Preview) provides high availability, which means you can specify if the named cache will be backup automatically. If yes then the data belongs to this named cache will be replicated on another role instance of this role. Then if one of the instance was failed the data can be retrieved from its backup instance. To enable the backup just open the Caching page in Visual Studio. In the named cache you want to enable backup, change the Backup Copies value from 0 to 1. The value of Backup Copies only for 0 and 1. “0” means no backup and no high availability while “1” means enabled high availability with backup the data into another instance. But by using the high availability feature there are something we need to make sure. Firstly the high availability does NOT means the data in cache will never be lost for any kind of failure. For example, if we have a role with cache enabled that has 10 instances, and 9 of them was failed, then most of the cached data will be lost since the primary and backup instance may failed together. But normally is will not be happened since MS guarantees that it will use the instance in the different fault domain for backup cache. Another one is that, enabling the backup means you store two copies of your data. For example if you think 100MB memory is OK for cache, but you need at least 200MB if you enabled backup. Besides the high availability, the Caching (Preview) support more features introduced in Windows Server AppFabric Caching than the Windows Azure Shared Caching. It supports local cache with notification. It also support absolute and slide window expiration types as well. And the Caching (Preview) also support the Memcached protocol as well. This means if you have an application based on Memcached, you can use Caching (Preview) without any code changes. What you need to do is to change the configuration of how you connect to the cache. Similar as the Windows Azure Shared Caching, MS also offers the out-of-box ASP.NET session provider and output cache provide on top of the Caching (Preview).   Summary Caching is very important component when we building a cloud-based application. In the June 2012 update MS provides a new cache solution named Caching (Preview). Different from the existing Windows Azure Shared Caching, Caching (Preview) runs the cache cluster within the role instances we have deployed to the cloud. It gives more control, more performance and more cost-effect. So now we have two caching solutions in Windows Azure, the Shared Caching and Caching (Preview). If you need a central cache service which can be used by many cloud services and web sites, then you have to use the Shared Caching. But if you only need a fast, near distributed cache, then you’d better use Caching (Preview).   Hope this helps, Shaun All documents and related graphics, codes are provided "AS IS" without warranty of any kind. Copyright © Shaun Ziyan Xu. This work is licensed under the Creative Commons License.

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  • R Package Installation with Oracle R Enterprise

    - by Sherry LaMonica-Oracle
    Normal 0 false false false EN-US X-NONE X-NONE Programming languages give developers the opportunity to write reusable functions and to bundle those functions into logical deployable entities. In R, these are called packages. R has thousands of such packages provided by an almost equally large group of third-party contributors. To allow others to benefit from these packages, users can share packages on the CRAN system for use by the vast R development community worldwide. R's package system along with the CRAN framework provides a process for authoring, documenting and distributing packages to millions of users. In this post, we'll illustrate the various ways in which such R packages can be installed for use with R and together with Oracle R Enterprise. In the following, the same instructions apply when using either open source R or Oracle R Distribution. In this post, we cover the following package installation scenarios for: R command line Linux shell command line Use with Oracle R Enterprise Installation on Exadata or RAC Installing all packages in a CRAN Task View Troubleshooting common errors 1. R Package Installation BasicsR package installation basics are outlined in Chapter 6 of the R Installation and Administration Guide. There are two ways to install packages from the command line: from the R command line and from the shell command line. For this first example on Oracle Linux using Oracle R Distribution, we’ll install the arules package as root so that packages will be installed in the default R system-wide location where all users can access it, /usr/lib64/R/library.Within R, using the install.packages function always attempts to install the latest version of the requested package available on CRAN:R> install.packages("arules")If the arules package depends upon other packages that are not already installed locally, the R installer automatically downloads and installs those required packages. This is a huge benefit that frees users from the task of identifying and resolving those dependencies.You can also install R from the shell command line. This is useful for some packages when an internet connection is not available or for installing packages not uploaded to CRAN. To install packages this way, first locate the package on CRAN and then download the package source to your local machine. For example:$ wget http://cran.r-project.org/src/contrib/arules_1.1-2.tar.gz Then, install the package using the command R CMD INSTALL:$ R CMD INSTALL arules_1.1-2.tar.gzA major difference between installing R packages using the R package installer at the R command line and shell command line is that package dependencies must be resolved manually at the shell command line. Package dependencies are listed in the Depends section of the package’s CRAN site. If dependencies are not identified and installed prior to the package’s installation, you will see an error similar to:ERROR: dependency ‘xxx’ is not available for package ‘yyy’As a best practice and to save time, always refer to the package’s CRAN site to understand the package dependencies prior to attempting an installation. If you don’t run R as root, you won’t have permission to write packages into the default system-wide location and you will be prompted to create a personal library accessible by your userid. You can accept the personal library path chosen by R, or specify the library location by passing parameters to the install.packages function. For example, to create an R package repository in your home directory: R> install.packages("arules", lib="/home/username/Rpackages")or$ R CMD INSTALL arules_1.1-2.tar.gz --library=/home/username/RpackagesRefer to the install.packages help file in R or execute R CMD INSTALL --help at the shell command line for a full list of command line options.To set the library location and avoid having to specify this at every package install, simply create the R startup environment file .Renviron in your home area if it does not already exist, and add the following piece of code to it:R_LIBS_USER = "/home/username/Rpackages" 2. Setting the RepositoryEach time you install an R package from the R command line, you are asked which CRAN mirror, or server, R should use. To set the repository and avoid having to specify this during every package installation, create the R startup command file .Rprofile in your home directory and add the following R code to it:cat("Setting Seattle repository")r = getOption("repos") r["CRAN"] = "http://cran.fhcrc.org/"options(repos = r)rm(r) This code snippet sets the R package repository to the Seattle CRAN mirror at the start of each R session. 3. Installing R Packages for use with Oracle R EnterpriseEmbedded R execution with Oracle R Enterprise allows the use of CRAN or other third-party R packages in user-defined R functions executed on the Oracle Database server. The steps for installing and configuring packages for use with Oracle R Enterprise are the same as for open source R. The database-side R engine just needs to know where to find the R packages.The Oracle R Enterprise installation is performed by user oracle, which typically does not have write permission to the default site-wide library, /usr/lib64/R/library. On Linux and UNIX platforms, the Oracle R Enterprise Server installation provides the ORE script, which is executed from the operating system shell to install R packages and to start R. The ORE script is a wrapper for the default R script, a shell wrapper for the R executable. It can be used to start R, run batch scripts, and build or install R packages. Unlike the default R script, the ORE script installs packages to a location writable by user oracle and accessible by all ORE users - $ORACLE_HOME/R/library.To install a package on the database server so that it can be used by any R user and for use in embedded R execution, an Oracle DBA would typically download the package source from CRAN using wget. If the package depends on any packages that are not in the R distribution in use, download the sources for those packages, also.  For a single Oracle Database instance, replace the R script with ORE to install the packages in the same location as the Oracle R Enterprise packages. $ wget http://cran.r-project.org/src/contrib/arules_1.1-2.tar.gz$ ORE CMD INSTALL arules_1.1-2.tar.gzBehind the scenes, the ORE script performs the equivalent of setting R_LIBS_USER to the value of $ORACLE_HOME/R/library, and all R packages installed with the ORE script are installed to this location. For installing a package on multiple database servers, such as those in an Oracle Real Application Clusters (Oracle RAC) or a multinode Oracle Exadata Database Machine environment, use the ORE script in conjunction with the Exadata Distributed Command Line Interface (DCLI) utility.$ dcli -g nodes -l oracle ORE CMD INSTALL arules_1.1-1.tar.gz The DCLI -g flag designates a file containing a list of nodes to install on, and the -l flag specifies the user id to use when executing the commands. For more information on using DCLI with Oracle R Enterprise, see Chapter 5 in the Oracle R Enterprise Installation Guide.If you are using an Oracle R Enterprise client, install the package the same as any R package, bearing in mind that you must install the same version of the package on both the client and server machines to avoid incompatibilities. 4. CRAN Task ViewsCRAN also maintains a set of Task Views that identify packages associated with a particular task or methodology. Task Views are helpful in guiding users through the huge set of available R packages. They are actively maintained by volunteers who include detailed annotations for routines and packages. If you find one of the task views is a perfect match, you can install every package in that view using the ctv package - an R package for automating package installation. To use the ctv package to install a task view, first, install and load the ctv package.R> install.packages("ctv")R> library(ctv)Then query the names of the available task views and install the view you choose.R> available.views() R> install.views("TimeSeries") 5. Using and Managing R packages To use a package, start up R and load packages one at a time with the library command.Load the arules package in your R session. R> library(arules)Verify the version of arules installed.R> packageVersion("arules")[1] '1.1.2'Verify the version of arules installed on the database server using embedded R execution.R> ore.doEval(function() packageVersion("arules"))View the help file for the apropos function in the arules packageR> ?aproposOver time, your package repository will contain more and more packages, especially if you are using the system-wide repository where others are adding additional packages. It’s good to know the entire set of R packages accessible in your environment. To list all available packages in your local R session, use the installed.packages command:R> myLocalPackages <- row.names(installed.packages())R> myLocalPackagesTo access the list of available packages on the ORE database server from the ORE client, use the following embedded R syntax: R> myServerPackages <- ore.doEval(function() row.names(installed.packages()) R> myServerPackages 6. Troubleshooting Common ProblemsInstalling Older Versions of R packagesIf you immediately upgrade to the latest version of R, you will have no problem installing the most recent versions of R packages. However, if your version of R is older, some of the more recent package releases will not work and install.packages will generate a message such as: Warning message: In install.packages("arules") : package ‘arules’ is not availableThis is when you have to go to the Old sources link on the CRAN page for the arules package and determine which version is compatible with your version of R.Begin by determining what version of R you are using:$ R --versionOracle Distribution of R version 3.0.1 (--) -- "Good Sport" Copyright (C) The R Foundation for Statistical Computing Platform: x86_64-unknown-linux-gnu (64-bit)Given that R-3.0.1 was released May 16, 2013, any version of the arules package released after this date may work. Scanning the arules archive, we might try installing version 0.1.1-1, released in January of 2014:$ wget http://cran.r-project.org/src/contrib/Archive/arules/arules_1.1-1.tar.gz$ R CMD INSTALL arules_1.1-1.tar.gzFor use with ORE:$ ORE CMD INSTALL arules_1.1-1.tar.gzThe "package not available" error can also be thrown if the package you’re trying to install lives elsewhere, either another R package site, or it’s been removed from CRAN. A quick Google search usually leads to more information on the package’s location and status.Oracle R Enterprise is not in the R library pathOn Linux hosts, after installing the ORE server components, starting R, and attempting to load the ORE packages, you may receive the error:R> library(ORE)Error in library(ORE) : there is no package called ‘ORE’If you know the ORE packages have been installed and you receive this error, this is the result of not starting R with the ORE script. To resolve this problem, exit R and restart using the ORE script. After restarting R and ">running the command to load the ORE packages, you should not receive any errors.$ ORER> library(ORE)On Windows servers, the solution is to make the location of the ORE packages visible to R by adding them to the R library paths. To accomplish this, exit R, then add the following lines to the .Rprofile file. On Windows, the .Rprofile file is located in R\etc directory C:\Program Files\R\R-<version>\etc. Add the following lines:.libPaths("<path to $ORACLE_HOME>/R/library")The above line will tell R to include the R directory in the Oracle home as part of its search path. When you start R, the path above will be included, and future R package installations will also be saved to $ORACLE_HOME/R/library. This path should be writable by the user oracle, or the userid for the DBA tasked with installing R packages.Binary package compiled with different version of RBy default, R will install pre-compiled versions of packages if they are found. If the version of R under which the package was compiled does not match your installed version of R you will get an error message:Warning message: package ‘xxx’ was built under R version 3.0.0The solution is to download the package source and build it for your version of R.$ wget http://cran.r-project.org/src/contrib/Archive/arules/arules_1.1-1.tar.gz$ R CMD INSTALL arules_1.1-1.tar.gzFor use with ORE:$ ORE CMD INSTALL arules_1.1-1.tar.gzUnable to execute files in /tmp directoryBy default, R uses the /tmp directory to install packages. On security conscious machines, the /tmp directory is often marked as "noexec" in the /etc/fstab file. This means that no file under /tmp can ever be executed, and users who attempt to install R package will receive an error:ERROR: 'configure' exists but is not executable -- see the 'R Installation and Administration Manual’The solution is to set the TMP and TMPDIR environment variables to a location which R will use as the compilation directory. For example:$ mkdir <some path>/tmp$ export TMPDIR= <some path>/tmp$ export TMP= <some path>/tmpThis error typically appears on Linux client machines and not database servers, as Oracle Database writes to the value of the TMP environment variable for several tasks, including holding temporary files during database installation. 7. Creating your own R packageCreating your own package and submitting to CRAN is for advanced users, but it is not difficult. The procedure to follow, along with details of R's package system, is detailed in the Writing R Extensions manual.

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  • How to setup Uefi support on serva?

    - by Hamster
    I'm trying to setup a pxe server with serva to deploy Windows 8.1 for a bunch of Elitepads. The server is working correctly for other PCs and virtual machines, but the Elitepads just won't. I've read some articles which suggest the pxe server needs Uefi support to work with this model, but no documentation on the subject from serva. Is there a way to setup UEFI support on serva? Are there any similar options to work around this without falling to Windows server?

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  • Network Error: no buffer space available

    - by braindump
    After some time of running fine, one of our Windows XP SP3 machines does not open some(!) new TCP/IP connections anymore. Putty says "Network Error: no buffer space available", IE won't open any new connections but e.g. network drive mappings still work, even new ones can be established. netstat does not show more open connections that usual, ping and dns lookups work fine. Any hints?

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  • Can't add client machine to windows server 2008 domain controller

    - by Patrick J Collins
    A bit of background before I dive into the gritty details: I have a single server running Windows 2003 Server where I host my ASP.net website and SQL Server + Reports. I've been creating ordinary windows user accounts to authenticate my users, and I enabled integrated windows authentication with impersonation. I've set up a bunch of user groups which correspond to certain roles (admin, power user, normal user, etc) and I test membership to enable or disable certain features. Overall, I'm pretty happy with the solution, it was quick to setup and I don't have to worry about messing around storing passwords and whatnot. Well, what I'm trying to do now is set up a new environment with 3 servers (Web, SQL, Reports) and I'd like these three servers to share common user accounts. I understand that I could add these three machines to a domain, which means installing Active Directory on one of the machines. I am barking up the wrong tree here? Would you suggest an alternative configuration? Assuming that I stick with AD, I have a couple of questions regarding DNS. To be honest, I'd rather not fiddle around with the DNS settings because my ISP already has their own DNS server which works just fine. It would appear however that DNS and AD are intertwined. Firstly, if I am to create a new domain in called mycompany.net, do I actually need to be the registered owner of that domain name and ensure the DNS entry points to the IP address of the machine hosting AD? Secondly, for the two other machines that I am trying to add to the domain, do I need to fiddle with their DNS settings? I've tried setting the preferred DNS Server IP address to that of my newly installed AD, but no luck. At this point, I can't add the two other machines to the domain. Here are some diagnostics that I have run based on a few suggestions I read on forums (sorry they're in French, although I could translate if needed). I ran nltest, which seems to indicate that the client can discover the domain controller. When I run dcdiag, the call to DsGetDcName fails with error 1722, not really sure what that means. Any suggestions? Thanks! C:\Users\Administrator>nltest /dsgetdc:mycompany.net Contrôleur de domaine : \\REPORTS.mycompany.net Adresse : \\111.111.111.111 GUID dom : 3333a4ec-ca56-4f02-bb9e-76c29c6c3832 Nom dom : mycompany.net Nom de la forêt : mycompany.net Nom de site du contrôleur de domaine : Default-First-Site-Name Nom de notre site : Default-First-Site-Name Indicateurs : PDC GC DS LDAP KDC TIMESERV WRITABLE DNS_DC DNS_DOMAIN DNS _FOREST CLOSE_SITE FULL_SECRET La commande a été correctement exécutée C:\Users\Administrator>dcdiag /s:mycompany.net /u: mycompany.net \pcollins /p:somepass Diagnostic du serveur d'annuaire Exécution de l'installation initiale : * Forêt AD identifiée. Collecte des informations initiales terminée. Exécution des tests initiaux nécessaires Test du serveur : Default-First-Site-Name\REPORTS Démarrage du test : Connectivity ......................... Le test Connectivity de REPORTS a réussi Exécution des tests principaux Test du serveur : Default-First-Site-Name\REPORTS Démarrage du test : Advertising Erreur irrécupérable : l'appel DsGetDcName (REPORTS) a échoué ; erreur 1722 Le localisateur n'a pas pu trouver le serveur. ......................... Le test Advertising de REPORTS a échoué Démarrage du test : FrsEvent Impossible d'interroger le journal des événements File Replication Service sur le serveur REPORTS.mycompany.net. Erreur 0x6ba « Le serveur RPC n'est pas disponible. » ......................... Le test FrsEvent de REPORTS a échoué Démarrage du test : DFSREvent Impossible d'interroger le journal des événements DFS Replication sur le serveur REPORTS.mycompany.net. Erreur 0x6ba « Le serveur RPC n'est pas disponible. » ......................... Le test DFSREvent de REPORTS a échoué Démarrage du test : SysVolCheck [REPORTS] Une opération net use ou LsaPolicy a échoué avec l'erreur 53, Le chemin réseau n'a pas été trouvé.. ......................... Le test SysVolCheck de REPORTS a échoué Démarrage du test : KccEvent Impossible d'interroger le journal des événements Directory Service sur le serveur REPORTS.mycompany.net. Erreur 0x6ba « Le serveur RPC n'est pas disponible. » ......................... Le test KccEvent de REPORTS a échoué Démarrage du test : KnowsOfRoleHolders ......................... Le test KnowsOfRoleHolders de REPORTS a réussi Démarrage du test : MachineAccount Impossible d'ouvrir le canal avec [REPORTS] : échec avec l'erreur 53 : Le chemin réseau n'a pas été trouvé. Impossible d'obtenir le nom de domaine NetBIOS Échec : impossible de tester le nom principal de service (SPN) HOST Échec : impossible de tester le nom principal de service (SPN) HOST ......................... Le test MachineAccount de REPORTS a réussi Démarrage du test : NCSecDesc ......................... Le test NCSecDesc de REPORTS a réussi Démarrage du test : NetLogons [REPORTS] Une opération net use ou LsaPolicy a échoué avec l'erreur 53, Le chemin réseau n'a pas été trouvé.. ......................... Le test NetLogons de REPORTS a échoué Démarrage du test : ObjectsReplicated ......................... Le test ObjectsReplicated de REPORTS a réussi Démarrage du test : Replications ......................... Le test Replications de REPORTS a réussi Démarrage du test : RidManager ......................... Le test RidManager de REPORTS a réussi Démarrage du test : Services Impossible d'ouvrir IPC distant à [REPORTS.mycompany.net] : erreur 0x35 « Le chemin réseau n'a pas été trouvé. » ......................... Le test Services de REPORTS a échoué Démarrage du test : SystemLog Impossible d'interroger le journal des événements System sur le serveur REPORTS.mycompany.net. Erreur 0x6ba « Le serveur RPC n'est pas disponible. » ......................... Le test SystemLog de REPORTS a échoué Démarrage du test : VerifyReferences ......................... Le test VerifyReferences de REPORTS a réussi Exécution de tests de partitions sur ForestDnsZones Démarrage du test : CheckSDRefDom ......................... Le test CheckSDRefDom de ForestDnsZones a réussi Démarrage du test : CrossRefValidation ......................... Le test CrossRefValidation de ForestDnsZones a réussi Exécution de tests de partitions sur DomainDnsZones Démarrage du test : CheckSDRefDom ......................... Le test CheckSDRefDom de DomainDnsZones a réussi Démarrage du test : CrossRefValidation ......................... Le test CrossRefValidation de DomainDnsZones a réussi Exécution de tests de partitions sur Schema Démarrage du test : CheckSDRefDom ......................... Le test CheckSDRefDom de Schema a réussi Démarrage du test : CrossRefValidation ......................... Le test CrossRefValidation de Schema a réussi Exécution de tests de partitions sur Configuration Démarrage du test : CheckSDRefDom ......................... Le test CheckSDRefDom de Configuration a réussi Démarrage du test : CrossRefValidation ......................... Le test CrossRefValidation de Configuration a réussi Exécution de tests de partitions sur mycompany Démarrage du test : CheckSDRefDom ......................... Le test CheckSDRefDom de mycompany a réussi Démarrage du test : CrossRefValidation ......................... Le test CrossRefValidation de mycompany a réussi Exécution de tests d'entreprise sur mycompany.net Démarrage du test : LocatorCheck Avertissement : l'appel DcGetDcName(GC_SERVER_REQUIRED) a échoué ; erreur 1722 Serveur de catalogue global introuvable - Les catalogues globaux ne fonctionnent pas. Avertissement : l'appel DcGetDcName(PDC_REQUIRED) a échoué ; erreur 1722 Contrôleur principal de domaine introuvable. Le serveur contenant le rôle PDC ne fonctionne pas. Avertissement : l'appel DcGetDcName(TIME_SERVER) a échoué ; erreur 1722 Serveur de temps introuvable. Le serveur contenant le rôle PDC ne fonctionne pas. Avertissement : l'appel DcGetDcName(GOOD_TIME_SERVER_PREFERRED) a échoué ; erreur 1722 Serveur de temps introuvable. Avertissement : l'appel DcGetDcName(KDC_REQUIRED) a échoué ; erreur 1722 Centre de distribution de clés introuvable : les centres de distribution de clés ne fonctionnent pas. ......................... Le test LocatorCheck de mycompany.net a échoué Démarrage du test : Intersite ......................... Le test Intersite de mycompany.net a réussi Update 1 : I am under the distinct impression that the problem is caused by some security settings. I have read elsewhere that the client needs to be able to access the fileshare sysvol. I had to enable Client for Microsoft Windows and File and Printer Sharing which were previously disabled. When I now run dcdiag the Advertising test works, which I suppose is forward progress. It currently chokes on the Services step (unable to open remote IPC). Démarrage du test : Services Impossible d'ouvrir IPC distant à [REPORTS.locbus.net] : erreur 0x35 « Le chemin réseau n'a pas été trouvé. » ......................... Le test Services de REPORTS a échoué The original English version of that error message : Could not open Remote ipc to [server] Update 2 : I attach some more diagnostics : Netsetup.log (client): 09/24/2009 13:27:09:773 ----------------------------------------------------------------- 09/24/2009 13:27:09:773 NetpValidateName: checking to see if 'WEB' is valid as type 1 name 09/24/2009 13:27:12:773 NetpCheckNetBiosNameNotInUse for 'WEB' [MACHINE] returned 0x0 09/24/2009 13:27:12:773 NetpValidateName: name 'WEB' is valid for type 1 09/24/2009 13:27:12:805 ----------------------------------------------------------------- 09/24/2009 13:27:12:805 NetpValidateName: checking to see if 'WEB' is valid as type 5 name 09/24/2009 13:27:12:805 NetpValidateName: name 'WEB' is valid for type 5 09/24/2009 13:27:12:852 ----------------------------------------------------------------- 09/24/2009 13:27:12:852 NetpValidateName: checking to see if 'MYCOMPANY.NET' is valid as type 3 name 09/24/2009 13:27:12:992 NetpCheckDomainNameIsValid [ Exists ] for 'MYCOMPANY.NET' returned 0x0 09/24/2009 13:27:12:992 NetpValidateName: name 'MYCOMPANY.NET' is valid for type 3 09/24/2009 13:27:21:320 ----------------------------------------------------------------- 09/24/2009 13:27:21:320 NetpDoDomainJoin 09/24/2009 13:27:21:320 NetpMachineValidToJoin: 'WEB' 09/24/2009 13:27:21:320 OS Version: 6.0 09/24/2009 13:27:21:320 Build number: 6002 09/24/2009 13:27:21:320 ServicePack: Service Pack 2 09/24/2009 13:27:21:414 SKU: Windows Server® 2008 Standard 09/24/2009 13:27:21:414 NetpDomainJoinLicensingCheck: ulLicenseValue=1, Status: 0x0 09/24/2009 13:27:21:414 NetpGetLsaPrimaryDomain: status: 0x0 09/24/2009 13:27:21:414 NetpMachineValidToJoin: status: 0x0 09/24/2009 13:27:21:414 NetpJoinDomain 09/24/2009 13:27:21:414 Machine: WEB 09/24/2009 13:27:21:414 Domain: MYCOMPANY.NET 09/24/2009 13:27:21:414 MachineAccountOU: (NULL) 09/24/2009 13:27:21:414 Account: MYCOMPANY.NET\pcollins 09/24/2009 13:27:21:414 Options: 0x25 09/24/2009 13:27:21:414 NetpLoadParameters: loading registry parameters... 09/24/2009 13:27:21:414 NetpLoadParameters: DNSNameResolutionRequired not found, defaulting to '1' 0x2 09/24/2009 13:27:21:414 NetpLoadParameters: status: 0x2 09/24/2009 13:27:21:414 NetpValidateName: checking to see if 'MYCOMPANY.NET' is valid as type 3 name 09/24/2009 13:27:21:523 NetpCheckDomainNameIsValid [ Exists ] for 'MYCOMPANY.NET' returned 0x0 09/24/2009 13:27:21:523 NetpValidateName: name 'MYCOMPANY.NET' is valid for type 3 09/24/2009 13:27:21:523 NetpDsGetDcName: trying to find DC in domain 'MYCOMPANY.NET', flags: 0x40001010 09/24/2009 13:27:22:039 NetpDsGetDcName: failed to find a DC having account 'WEB$': 0x525, last error is 0x79 09/24/2009 13:27:22:039 NetpDsGetDcName: status of verifying DNS A record name resolution for 'KING.MYCOMPANY.NET': 0x0 09/24/2009 13:27:22:039 NetpDsGetDcName: found DC '\\KING.MYCOMPANY.NET' in the specified domain 09/24/2009 13:27:30:039 NetUseAdd to \\KING.MYCOMPANY.NET\IPC$ returned 53 09/24/2009 13:27:30:039 NetpJoinDomain: status of connecting to dc '\\KING.MYCOMPANY.NET': 0x35 09/24/2009 13:27:30:039 NetpDoDomainJoin: status: 0x35 09/24/2009 13:27:30:148 ----------------------------------------------------------------- ipconfig /all (on client): Configuration IP de Windows Nom de l'hôte . . . . . . . . . . : WEB Suffixe DNS principal . . . . . . : Type de noeud. . . . . . . . . . : Hybride Routage IP activé . . . . . . . . : Non Proxy WINS activé . . . . . . . . : Non Carte Ethernet Connexion au réseau local : Suffixe DNS propre à la connexion. . . : Description. . . . . . . . . . . . . . : Intel 21140-Based PCI Fast Ethernet Adapter (Emulated) Adresse physique . . . . . . . . . . . : **-15-5D-A1-17-** DHCP activé. . . . . . . . . . . . . . : Non Configuration automatique activée. . . : Oui Adresse IPv4. . . . . . . . . . . : **.***.163.122(préféré) Masque de sous-réseau. . . . . . . . . : 255.255.255.0 Passerelle par défaut. . . . . . . . . : **.***.163.2 Serveurs DNS. . . . . . . . . . . . . : **.***.163.123 NetBIOS sur Tcpip. . . . . . . . . . . : Activé ipconfig /all (on server): Configuration IP de Windows Nom de l'hôte . . . . . . . . . . : KING Suffixe DNS principal . . . . . . : mycompany.net Type de noeud. . . . . . . . . . : Hybride Routage IP activé . . . . . . . . : Non Proxy WINS activé . . . . . . . . : Non Liste de recherche du suffixe DNS.: locbus.net Carte Ethernet Connexion au réseau local : Suffixe DNS propre à la connexion. . . : Description. . . . . . . . . . . . . . : Intel 21140-Based PCI Fast Ethernet Adapter (Emulated) Adresse physique . . . . . . . . . . . : **-15-5D-A1-1E-** DHCP activé. . . . . . . . . . . . . . : Non Configuration automatique activée. . . : Oui Adresse IPv4. . . . . . . . . . . : **.***.163.123(préféré) Masque de sous-réseau. . . . . . . . . : 255.255.255.0 Passerelle par défaut. . . . . . . . . : **.***.163.2 Serveurs DNS. . . . . . . . . . . . . : 127.0.0.1 NetBIOS sur Tcpip. . . . . . . . . . . : Activé nslookup (on client): Serveur : *******.***.com Address: **.***.163.123 Nom : mycompany.net Addresses: ****:****:a37b::****:a37b **.****.163.123

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  • SQL Server Licensing in a VMware vSphere Cluster

    - by Helvick
    If I have SQL Server 2008 instances running in virtual machines on a VMware vSphere cluster with vMotion\DRS enabled so that the VM's can (potentially) run on any one of the physical servers in the cluster what precisely are the license requirements? For example assume that I have 4 physical ESX Hosts with dual physical CPU's and 3 separate single vCPU Virtual Machines running SQL Server 2008 running in that cluster. How many SQL Standard Processor licenses would I need? Is it 3 (one per VM) or 12 (one per VM on each physical host) or something else? How many SQL Enterprise Processor licenses would I need? Is it 3 (one per VM) or 8 (one for each physical CPU in the cluster) or, again, something else? The range in the list prices for these options goes from $17k to $200k so getting it right is quite important. Bonus question: If I choose the Server+CAL licensing model do I need to buy multiple Server instance licenses for each of the ESX hosts (so 12 copies of the SQL Server Standard server license so that there are enough licenses on each host to run all VM's) or again can I just license the VM and what difference would using Enterprise per server licensing make? Edited to Add Having spent some time reading the SQL 2008 Licensing Guide (63 Pages! Includes Maps!*) I've come across this: • Under the Server/CAL model, you may run unlimited instances of SQL Server 2008 Enterprise within the server farm, and move those instances freely, as long as those instances are not running on more servers than the number of licenses assigned to the server farm. • Under the Per Processor model, you effectively count the greatest number of physical processors that may support running instances of SQL Server 2008 Enterprise at any one time across the server farm and assign that number of Processor licenses And earlier: ..For SQL Server, these rule changes apply to SQL Server 2008 Enterprise only. By my reading this means that for my 3 VM's I only need 3 SQL 2008 Enterprise Processor Licenses or one copy of Server Enterprise + CALs for the cluster. By implication it means that I have to license all processors if I choose SQL 2008 Standard Processor licensing or that I have to buy a copy of SQL Server 2008 Standard for each ESX host if I choose to use CALs. *There is a map to demonstrate that a Server Farm cannot extend across an area broader than 3 timezones unless it's in the European Free Trade Area, I wasn't expecting that when I started reading it.

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  • Slow local file transfer (copy) on ESX vmware server?

    - by Sorin Sbarnea
    I have a 8 CPU VmWare ESX server (3.5) with 4 HDD drives in RAID that is not loaded at all. I enabled SSH and installed mc (midnight commander) in order to be able to copy(clone) virtual machines but I observed that if does copy the files very slow - around 3.5mb/s on local drive. Why is this happening and how should I solve the issue?

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  • Disable integrated client certificate validation in IIS7?

    - by danford
    We have an IIS 7 hosted site that requires client certificates (two-way ssl). Unfortunately, I don't have access to the trusted certificate store on the host machines, and so I was forced to write a custom http module to verify the certificates. My module never gets a chance to do the authentication, however, because IIS doesn't recognize the certificates and responds with a 403.7 error. How do I turn off client certificate validation, while still requiring clients to provide them?

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  • SQL Server Licensing in a VMware vSphere Cluster

    - by Helvick
    If I have SQL Server 2008 instances running in virtual machines on a VMware vSphere cluster with vMotion\DRS enabled so that the VM's can (potentially) run on any one of the physical servers in the cluster what precisely are the license requirements? For example assume that I have 4 physical ESX Hosts with dual physical CPU's and 3 separate single vCPU Virtual Machines running SQL Server 2008 running in that cluster. How many SQL Standard Processor licenses would I need? Is it 3 (one per VM) or 12 (one per VM on each physical host) or something else? How many SQL Enterprise Processor licenses would I need? Is it 3 (one per VM) or 8 (one for each physical CPU in the cluster) or, again, something else? The range in the list prices for these options goes from $17k to $200k so getting it right is quite important. Bonus question: If I choose the Server+CAL licensing model do I need to buy multiple Server instance licenses for each of the ESX hosts (so 12 copies of the SQL Server Standard server license so that there are enough licenses on each host to run all VM's) or again can I just license the VM and what difference would using Enterprise per server licensing make? Edited to Add Having spent some time reading the SQL 2008 Licensing Guide (63 Pages! Includes Maps!*) I've come across this: • Under the Server/CAL model, you may run unlimited instances of SQL Server 2008 Enterprise within the server farm, and move those instances freely, as long as those instances are not running on more servers than the number of licenses assigned to the server farm. • Under the Per Processor model, you effectively count the greatest number of physical processors that may support running instances of SQL Server 2008 Enterprise at any one time across the server farm and assign that number of Processor licenses And earlier: ..For SQL Server, these rule changes apply to SQL Server 2008 Enterprise only. By my reading this means that for my 3 VM's I only need 3 SQL 2008 Enterprise Processor Licenses or one copy of Server Enterprise + CALs for the cluster. By implication it means that I have to license all processors if I choose SQL 2008 Standard Processor licensing or that I have to buy a copy of SQL Server 2008 Standard for each ESX host if I choose to use CALs. *There is a map to demonstrate that a Server Farm cannot extend across an area broader than 3 timezones unless it's in the European Free Trade Area, I wasn't expecting that when I started reading it.

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  • NFS mount share from Linux AD authentication to Linux with NIS authentication

    - by user137862
    I have two machines: Linux with AD authentication and running NFS server Linux with NIS authentication Problem: When I try to mount any share from first machine (AD authentication) to second (NIS authentication) I always get somehing like this drwxrws---+ 13 16777260 16777222 4096 Sep 21 09:42 software In fact I can't access to this folder because on NIS machine I don't have the user with such UID/GID Question: May somebody know how resolve this problem?

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  • IE8: intense flickering for Flash in Windows 7 RTM

    - by 280Z28
    Whenever I view a page with Flash on it (example www.fox.com), if I move my mouse around the page flickers intensely - like siezure inducing flicker. Is this a known issue, and is there a way to fix it? Windows 7 RTM x64 IE8 Flash Player, Acrobat Reader, Shockwave Player are all I installed Consistent across 3 very different machines (AMD ZM-82 + Radeon HD3200 laptop, Core i7 + NVidia GT220 desktop, P4D + NVidia 6400GT desktop), but all with the above software.

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  • Deploy .net 4 via Acrive Directory group policy or WSUS

    - by Terence Johnson
    Is there a way to automatically deploy .net 4 using Active Directory group policy or WSUS? I want to push it out to lots of machines without having to go around to each one. Background: I have a VSTO ClickOnce application I want to deploy to non-admin users, but it uses .net 4, which won't install without admin rights, so ClickOnce fails for non-admins unless .net 4 is already installed.

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  • Win7 playback of dvr-ms files stutters

    - by Jim Lynn
    I've just had to install Windows 7 on my Media Center machine because my Vista installation had a faulty drive. I've got the latest drivers that I can find - Intel 945GM integrated Graphics, Realtek audio drivers. Things are working OK with one exception. Playback of old recordings, from dvr-ms format files, is choppy. The picture freezes for a fraction of a second, then quickly catches up. The sound is uninterrupted and doesn't pause. These freezes happen once every 5 seconds or so. It's very regular. Playback of Live TV from the digital tuner is perfectly smooth. DVD playback is perfectly smooth. As an experiment, I used the MPEG editing package VideoReDo to create a small test file in three different formats. This program takes the raw MPEG streams and repackages them into the desired container. I took the same clip and created three files in three formats: dvr-ms (Microsoft's old recorded TV format); mpg (standard MPEG); and ts (raw MPEG transport stream of the kind often produced by PVRs). When these three files are played back under Windows 7, the mpg and ts files play smoothly, but the dvr-ms file stutters. The last piece of data I have is that two other Windows 7 machines can play back dvr-ms files smoothly with no stuttering. One is a netbook, with less grunt than the media centre. So there must be something specific about my Media Center machine that's causing the problem. Does anyone have any idea where I can look now? I don't know much about AV software, codecs, filter graphs etc. but I suspect that's where the problem lies. Rendering the video isn't the problem, but extracting the streams is. How would I go about diagnosing the problem? Edited to add: I just used the GraphStudio tool to look at the filter graph on the offending PC. The filter graph it uses by default for dvr-ms looks identical to the other machines, and, interestingly, when I play the files using GraphStudio they run smoothly. Under Windows Media Player and Windows Media Center they stutter. I'd like to see the filter graph for WMP but GraphStudio won't show it. It looks like WMP and WMC are using a different decoding path to GraphStudio. Edited again to add: Today I purchased a new HDTV. The same Media Center driving the TV at 1080p is now playing back the old Recorded TV files smoothly, without stuttering. So whatever the cause of the original problem, using a different resolution seems to have removed the problem. It might also explain why nobody else has had this problem. I doubt many people use Media Centre with a 14in portable TV.

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  • logging into network share

    - by Jake Rue
    Hi, I am logging into a network share through a batch script to start a test I can get the shared program logged in but then up comes the windows prompt "run" or "cancel". Not all of the machines have this prompt. How can I automatically choose 'run' from this prompt so the rest of the script can run? Jake

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  • How to manage Media Center Extender schedule from Media Center in Windows7

    - by Pangea
    I want to have several machines set up as digital signage displays and pull media (.pptx, video, images etc) from a centralized place. This is easy enough, but what I really need help doing is managing which extenders play specific media and the schedule from a Windows 7 x64 client hopefully within Media Center but I'm open to another management app. Is it possible to dictate the time and location each media is pushed to? I can use either a full machine running a full Win7 OS or a simple MC extender.

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  • Backup Exec 11D and Thecus N5200 Pro

    - by JohnyD
    I have a Thecus N5200 Pro integrated into my Windows 2003 AD network. My current backup solution involves Backup Exec 11D but this requires a running service for windows boxes or a similar daemon for linux machines. The N5200 runs a custom linux kernel but as of yet I am unable to add it to my backups through Backup Exec. Does anyone know of a method of backing up directly from the N5200 to Backup Exec without moving the data to an intermediary for archiving?

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  • Nginx+Passenger: 502 Bad Gateway from Nginx when passing urlencoded URLs in GET vars

    - by jimeh
    Here's an example of the URLs that don't work: http://domain/do?url=http%3A%2F%2Fwww.linkedin.com%2Fin%2Fperson http://domain/do?url=http%3A%2F%2Fwww.linkedin.com%2F However, the following URL does work: http://domain/do?url=http%3A%2F%2Fwww.linkedin.com Also, this only happens with Nginx, using Passenger with Apache it works fine, but we use Nginx on our production machines. Here's the entry in Nginx's error log: 2009/12/01 09:30:51 [error] 6407#0: *136 upstream prematurely closed connection while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: domain, request: "GET /do?url=http%3A%2F%2Fwww.linkedin.com%2F HTTP/1.1", upstream: "passenger://unix:/tmp/passenger.6335/master/helper_server.sock:", host: "domain"

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