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  • Disaster Recovery Discovery

    - by Rodney Landrum
    Last weekend I joined several of my IT staff on a mission to perform a DR test in our remote CoLo center in a large South East city of the US. Can I be more obtuse? The goal was simple for me as the sole DBA in a throng of Windows, Storage, Network and SAN admins – restore the databases and make them work. There were 4 applications that back ended to 7 SQL Server databases on 4 different SQL Server instances. We would maintain the original server names, but beyond that it was fair game. We had time to prepare so I was able to script out or otherwise automate the recovery process. I used sp_help_revlogin for three of the servers, a bit of a cheat actually because restoring the Master database on the target DR servers was the specified course of action according to the DR procedures ( the caveat “IF REQUIRED” left it open to interpretation. I really wanted to avoid the step of restoring Master for a number of reasons but mainly because I did not want to deal with issues starting SQL Services afterward. Having to account for the location of TempDB and the version conflicts of the resource DBs were just two of the battles I chose not to fight. Not to mention other system database location problems that might arise and prevent SQL from starting.  I was going to have to restore all of the user databases anyway, so I would not really gain any benefit, outside of logins, for taking the time to restore the source Master database over the newly installed one on the fresh server. What I wanted was the ability to restore the Master database as a user database, call it Master_Mine, from a backup on the source system and then use that restored database to script the SQL Logins and passwords on the DR systems. While I did not attempt this on the trip, the thought stuck in my mind and this past week I succeeded at scripting user accounts and passwords using only a restored copy of the Master database. Granted there were several challenges to overcome.  Also, as is usual for any work like this the usual disclaimers apply:  This is not something that I would imagine Microsoft would condone or support and this was really only an experiment for me to learn if it was even possible. While I have tested the process with success, I do not know that I would use this technique in a documented procedure because future updates for SQL Server will render this technique non-functional. I thought at first, incorrectly of course, that I could use sp_help_revlogin on a restored copy of the master database I named Master_Mine.   Since sp_help_revlogin uses system schema objects, sys.syslogins and sys.server_principals, this was not going to work because all results would come from the main Master database. To test this I added a SQL login via SSMS, backed up Master, restored  it as Master_Mine, and then deleted the login.  Even though the test account I created should presumably still be in the Master_Mine database, I should be able to get to it and script out its creation with its password hash so that I would not need to know the password, but any applications that stored that password would not have to be altered in the DR scenario. They would just work as expected. Once I realized that would not work I began looking deeper.  Knowing that sys.syslogins and sys.server_principals are system views, their underlying code should be available with sp_helptext, right? They were. And this led me to discover the two tables sys.sysxlgns and sys.sysprivs, where the data I needed was stored. These tables existed in both the real Master and the restored copy, Master_Mine.  I used this information to tweak the sp_help_revlogin stored procedure to use these tables instead to create the logins cursor used in sp_help_revlogin. For the password hash,  sp_help_revlogin uses the function LoginProperty() which takes a user name and option ‘passwordhash’ to return the hash for the user. Unfortunately, it requires the login to exist in the Master database. This would not work. So another slight modification I had to make was to pull the password hash itself (pwdhash from sys.sysxlgns) into the logins cursor and comment out the section of sp_help_revlogin that uses LoginProperty. Instead, I pass the pwdhash value as the variable @PWD_varbinary to the sp_hexadecimal stored procedure which is also created by and used within the code provided by Microsoft in the link above for sp_help_revlogin. The final challenge: sys.sysxlgns and sys.server_principals are visible only within a Dedicated Administrator Connection (DAC) query window in SSMS or within SQLCDMD.  To open a DAC connection you have to be logged in on the SQL Server itself, via RDP in my case,  and you preface the server name in the query connection with ADMIN:, so that the server connection looks like ADMIN:ServerName. From there you can create the modified stored procedure in the restored copy of a Master database from a source system as whatever name you like, and then run the modified stored procedure. I named my new stored procedure usp_help_revlogin_MyMaster. Upon execution I was happy to see the logins and password hashes that I needed to apply from the source Master database without having to restore over the new Master system database and without the need to access the original server (assuming it was down due to whatever disaster put it in that state). You will note that I am not providing full code samples here of the modifications. I will say that it was a slight bit of work and anyone who needed to do this for whatever reason, could fairly easily roll their own solution with the information provided herein.  My goal, as I said was to prove that this could be done and provide another option if required to ease the burden of getting SQL Servers up and available in an emergency situation where alternatives may be more challenging or otherwise unavailable.  

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  • Payables Master Generic Datafix (MGD) Now Checks For Even More EBTax Corruption!!

    - by MargaretW
    The Payables MGD is a vital diagnostic that all R12/12.1 customers need to run regularly to check the data integrity of their Payables system. This script does not make any changes to your system, so it’s risk free and it produces a HTML formatted output showing which data corruption issues have been detected and provides the Doc ID’s that will be needed to fix them. This MGD diagnostic (version 120.92 and above) is even better than it used to be as it now checks for 11 new EBTax corruption signatures that Support was seeing on a consistent basis. These lengthy Service Requests could have been avoided with one run of the MGD which tells you right away if you have data corruption. It’s the first thing our Payables support engineers will have you run when you log an SR so why not be one step ahead? The new EBTax signatures that were included in this latest update to the MGD are pulled from the following common solutions documents: R12 E-Business Tax/Payables Data-Fixes: Cause and action to handle ZX_LINES_SUMMARY_U1 issue Doc ID 1152123.1 EB-Tax Data Corruption Issues & Recommended Solutions Doc ID 1316316.1 The specific issues that are now screened are detailed below: 1. TAXABLE_BASIS_FORMULA and MANUALLY_ENTERED_FLAG mismatch 2. ESTABLISHMENT_ID mismatch 3. TRX_NUMBER mismatch 4. TAX_RATE mismatch 5. Currency Conversion related columns mismatch in Migrated Invoices 6. HISTORICAL_FLAG and RECORD_TYPE_CODE mismatch 7. ADJUSTED_DOC_TRX_LEVEL_TYPE is NULL or APPLIED_FROM_TRX_LEVEL_TYPE is NULL 8. Missing Reversal Tax Distributions For Tax Distributions 9. Tax Lines for discarded or cancelled Transaction Lines are not marked as cancelled 10. Error AP_ERR_TAX_DIST_SYNC 11. AP_UNFROZEN_DIST_EXIST/Unfrozen Tax Distributions exist for this invoice Get Proactive – Check your system for these common EBTax issues and fix the data before it causes a problem. Access the MGD note and watch the video that explains how it works here - R12: Master GDF Diagnostic to Validate Data Related to Invoices, Payments, Accounting, Suppliers and EBTax [VIDEO] Doc ID 1360390.1

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  • I've got my Master's in Software Engineering... Now what? [closed]

    - by Brian Driscoll
    Recently I completed a Master of Science in Software Engineering from Drexel University (Philadelphia, PA, US), because I wanted to have some formal education in software (my undergrad is in Math Ed) and also because I wanted to be able to advance my career beyond just programming. Don't get me wrong; I love to code. I spend a lot of my spare time coding. However, for me writing code is just a means to an end: what I REALLY love is designing software. Not visual design, mind you, but the architecture of the system. So, ideally I'd like to try to get a job doing software architecture. The problem is that I have no real experience in it besides my graduate course work. So, what should I do to make my "bones" in software architecture? UPDATE Just so it's clear, I have over 5 years of work experience in software development and an MCTS cert in addition to my education, so I'm not looking for the usual "I'm fresh out of school, what should I do?" advice.

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  • Spending a good fortune on a certificate holding Scrum Master or a Veteran XP coach?

    - by ashy_32bit
    There is a very prestigious company that delivers a well-sold software about financial systems. It has more that 20 years of history, and is staffed with about 20 programmers and much larger number of managerial staff. Dissatisfied customers have reported strange bugs and no one has a clue what is wrong, hard to read code, and customization is prohibitively expensive. In a word, the software is rotten. The company decided to spend a fortune and found the Agile thing as the remedy but they are stuck about what it is they need most urgently. Is it about the process or the developers or both? The challenge breaks down to the following options: They can hire a certificate holding Scrum Master to teach them Scrum. When asked about the value of doing it, the SM responded: "I will prepare them to embrace Agile and only then they can go Agile and save the product". They can as well hire a veteran XP coach. When posed with the same question he responded : "The most urgent problem is with the programmers and not the management, XP will save the product from rot and only then Scrum will make sense" Developers are far from capable of doing agile programming practices at the moment. No unit tests, no pair programmings, no CI (huh? what is it?) ... you get the idea. Some say they would be far better trying to improve their programming first (hire option 2) and then go with the process. Many say quite the opposite. Any insights ?

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  • MySQL-Cluster or Multi-Master for production? Performance issues?

    - by Phillip Oldham
    We are expanding our network of webservers on EC2 to a number of different regions and currently use master/slave replication. We've found that over the past couple of months our slave has stopped replicating a number of times which required us to clear the db and initialise the replication again. As we're now looking to have servers in 3 different regions we're a little concerned about these MySQL replication errors. We believe they're due to auto_increment values, so we're considering a number of approaches to quell these errors and stabilise replication: Multi-Master replication; 3 masters (one in each region), with the relevant auto_increment offsets, regularly backing up to S3. Or, MySQL-Cluster; 3 nodes (one in each region) with a separate management node which will also aggregate logs and statistics. After investigating it seems they both have down-sides (replication errors for the former, performance issues for the latter). We believe the cluster approach would allow us to manage and add new nodes more easily than the Multi-Master route, and would reduce/eliminate the replication issues we're currently seeing. But performance is a priority. Are the performance issues of MySQL-Cluster as bad as people say?

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  • Including email, IMs, configs, etc. in documentation or notes

    - by Jason Antman
    The shop I work in is pretty laid-back. We're on a documentation kick, only because historically we've been very bad with it. We do a lot of our brainstorming in face-to-face meetings, and also do a lot of communication via IM in addition to email. While I'm usually pretty good about documentation and keeping copious lab notes, I just finished a build of a host and spent hours searching through IMs, emails, files on my workstation, etc. to pull out anything I missed in my lab notes, which formed a large amount of the basis for the internal documentation. Does anyone have any thoughts on, aside from manually saving things to a project directory, managing various data sources (especially email and IM) and tracking them on project basis? Ideally, I'd like an easy way to put copies of emails, IM logs, etc. into a project-specific directory on my workstation and then just have a cron job that syncs that up with a shared folder. This isn't really a candidate for anything more advanced, as the bulk of the data will be copies of configs, code, etc. Here are the big restrictions: Email is via a centralized Zimbra install, so nothing can happen server-side. My workstation is Linux. Aside from writing Pidgin and Thunderbird plugins that let me tag chats and emails as belonging to a project, and then copy them to the appropriate place... any thoughts? Suggestions? Thanks, Jason

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  • Marking multi-level nested forms as "dirty" in Rails

    - by Charles Kihe
    I have a three-level multi-nested form in Rails. The setup is like this: Projects have many Milestones, and Milestones have many Notes. The goal is to have everything editable within the page with JavaScript, where we can add multiple new Milestones to a Project within the page, and add new Notes to new and existing Milestones. Everything works as expected, except that when I add new notes to an existing Milestone (new Milestones work fine when adding notes to them), the new notes won't save unless I edit any of the fields that actually belong to the Milestone to mark the form "dirty"/edited. Is there a way to flag the Milestone so that the new Notes that have been added will save? Edit: sorry, it's hard to paste in all of the code because there's so many parts, but here goes: Models class Project < ActiveRecord::Base has_many :notes, :dependent => :destroy has_many :milestones, :dependent => :destroy accepts_nested_attributes_for :milestones, :allow_destroy => true accepts_nested_attributes_for :notes, :allow_destroy => true, :reject_if => proc { |attributes| attributes['content'].blank? } end class Milestone < ActiveRecord::Base belongs_to :project has_many :notes, :dependent => :destroy accepts_nested_attributes_for :notes, :allow_destroy => true, :allow_destroy => true, :reject_if => proc { |attributes| attributes['content'].blank? } end class Note < ActiveRecord::Base belongs_to :milestone belongs_to :project scope :newest, lambda { |*args| order('created_at DESC').limit(*args.first || 3) } end I'm using an jQuery-based, unobtrusive version of Ryan Bates' combo helper/JS code to get this done. Application Helper def add_fields_for_association(f, association, partial) new_object = f.object.class.reflect_on_association(association).klass.new fields = f.fields_for(association, new_object, :child_index => "new_#{association}") do |builder| render(partial, :f => builder) end end I render the form for the association in a hidden div, and then use the following JavaScript to find it and add it as needed. JavaScript function addFields(link, association, content, func) { var newID = new Date().getTime(); var regexp = new RegExp("new_" + association, "g"); var form = content.replace(regexp, newID); var link = $(link).parent().next().before(form).prev(); if (func) { func.call(); } return link; } I'm guessing the only other relevant piece of code that I can think of would be the create method in the NotesController: def create respond_with(@note = @owner.notes.create(params[:note])) do |format| format.js { render :json => @owner.notes.newest(3).all.to_json } format.html { redirect_to((@milestone ? [@project, @milestone, @note] : [@project, @note]), :notice => 'Note was successfully created.') } end end The @owner ivar is created in the following before filter: def load_milestone @milestone = @project.milestones.find(params[:milestone_id]) if params[:milestone_id] end def determine_owner @owner = load_milestone @owner ||= @project end Thing is, all this seems to work fine, except when I'm adding new notes to existing milestones. The milestone has to be "touched" in order for new notes to save, or else Rails won't pay attention.

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  • hadoop: port appears open locally but not remotelly

    - by miguel
    I am new to linux and hadoop and I am having the same issue as in this question. I think I understand what is causing it but I don't know how to solve it (Don't know what they mean by "Edit the Hadoop server's configuration file so that it includes its NIC's address."). The other post that they link says that the configuration files should refer to the machine's externally accessible host name. I think I got this right as every hadoop configuration file refers to "master" and the etc/hosts file lists the master by its private IP address. How can I solve this? Edit: I have 5 nodes: master, slavec, slaved, slavee and slavef all running debian. This is the hosts file in master: 127.0.0.1 master 10.0.1.201 slavec 10.0.1.202 slaved 10.0.1.203 slavee 10.0.1.204 slavef this is the hosts file in slavec (it looks similar in the other slaves): 10.0.1.200 master 127.0.0.1 slavec 10.0.1.202 slaved 10.0.1.203 slavee 10.0.1.204 slavef the masters file in master: master the slaves file in master: master slavec slaved slavee slavef the masters and slaves file in slavex has only one line: slavex

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  • PHP recaptcha send mail issues

    - by Mike
    Hey guys, if anybody can help me out i'd love it... What i have is a form, that went sent, uses doublecheck.php php require_once('recaptchalib.php'); $privatekey = ""; $resp = recaptcha_check_answer ($privatekey, $_SERVER["REMOTE_ADDR"], $_POST["recaptcha_challenge_field"], $_POST["recaptcha_response_field"]); if (!$resp-is_valid) { die ("Sorry please go back and try it again." . "" . $resp-error . ")"); } if ($resp-is_valid) { require_once('sendmail.php'); } ? And then my sendmail.php php $ip = $_POST['ip']; $httpref = $_POST['httpref']; $httpagent = $_POST['httpagent']; $visitor = $_POST['visitor']; $notes = $_POST['notes']; $attn = $_POST['attn']; $todayis = date("l, F j, Y, g:i a") ; $attn = $attn ; $subject = $attn; $notes = stripcslashes($notes); $message = " $todayis [EST] \n Attention: $attn \n Message: $notes \n From: $visitor ($Your Prayer or Concern)\n Additional Info : IP = $ip \n Browser Info: $httpagent \n Referral : $httpref \n "; $from = "From:\r\n"; mail("", Prayers and Concerns, $message); ? Date: Attention: Message: ", $notes); echo $notesout; ? Next Page What i'm having a hard time with is when its succesful i need to send out $notes but $notes is always blank. Should i just put my sendmail php inside of my successful php? Or can someone explain to me why $notes is blank. I do have my recaptcha key in, and also i do have an email address. I kept some things private, also there is a notes textarea in my HTML

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  • Problem creating XML using c#

    - by Pankaj
    I am searching a batter solution for creating xml through xml serialization. What i need, i have a given format like this <product Id="1"> <name>2 1/2 X 6 PVC NIPPLE TOE SCH 80</name> <notes> <note>!--note 1---</note> <note>!--note 2--</note> ...... </notes> </product> what i am doing here, i created a 2 classes like this public class product { [XmlElement("name")] public string Name { get; set; } [XmlArray("notes")] public List<notes> ListNotes { get; set; } } public class notes { [XmlIgnore] public string Note { get; set; } } when i am serializing this then i am getting xml in this formate <product Id="1"> <name>2 1/2 X 6 PVC NIPPLE TOE SCH 80</name> <notes> <notes> <note>!--note 1---</note> <note>!--note 2--</note> </notes> </notes> </product> i don't want extra <notes>. Any batter solution to solve this problem? Thanks

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  • Rails: include related object in JSON output

    - by Codezy
    I have a note class that belongs to a user (ie a user can create many notes). clip from my notes controller class NotesController < ApplicationController before_filter :authenticate_user! respond_to :html, :xml, :json # GET /notes # GET /notes.xml def index @notes = Note.includes(:user).order("created_at DESC") respond_with @notes end When I ask for the index in json results for example /notes.json, it returns the notes but only returns user_id for the user object. I would like it to also include user.username (and would be curious how to have the whole user object embedded). Bonus question: I could not find a way to make the column show as author_id and have it relate back to user. If this is easy to do, how do you do it?

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  • MySQL LEFT JOIN issue with three WHERE statements

    - by jhat
    I am building a note taking app for myself with tag filtering functions, but am having an issue when trying to grab notes with the tags. The tag filter needs to use AND not IN, because it will help better narrow down what I am looking for. My tables are configured like this: + notes note_id | note_title | note_uid + tags tag_id | tag_title + notes_tags nt_id | nt_note_id | nt_tag_id The notes_tags table keeps track of all notes' tags. I am not worried about returning any information about tags, so here is an example LEFT JOIN I am using currently to only get notes with only 1 tag. SELECT * FROM notes_tags LEFT JOIN notes ON note_id = nt_note_id WHERE note_uid IN ( 1 ) AND nt_tag_id = 10 This query runs perfect, it grabs all of the notes with that single tag. However, I am having issues "pinpointing" my notes using a query like this: SELECT * FROM notes_tags LEFT JOIN notes ON note_id = nt_note_id WHERE note_uid IN ( 1 ) AND nt_tag_id = 10 AND nt_tag_id = 11 What am I doing wrong with the syntax?

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  • git: rename remote branch

    - by Albert
    I have the branch master which tracks the remote branch origin/master. I want to rename them to "master-old" both locally and remote. Is that possible? For other users who tracked origin/master (and who updated their local master branch always just via 'git pull'), what whould happen after I renamed the renamed the remote branch. Would their 'git pull' still work or would it throw an error that it coudln't find origin/master anymore? Then, further on, I want to create a new master branch (both locally and remote). Again, after I did this, what would happen now if the other users do the 'git pull' now? I guess all this would result in a lot of trouble. Is there a clean way to get what I want? Or should I just leave master as it is and create a new branch master-new and just work there further on?

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  • Podcast Show Notes: The Red Room Interview &ndash; Part 1

    - by Bob Rhubart
      The latest OTN Arch2Arch podcast is Part 1 of a three-part series featuring a discussion of a broad range of SOA  issues with three members of the small army of contributors to The Red Room Blog, now part of the OJam.biz site, the Australia-New Zealand outpost of the global Oracle community. The panelists for this program are: Sean Boiling - Sales Consulting Manager for Oracle Fusion Middleware LinkedIn | Twitter | Blog Richard Ward - SOA Channel Development Manager at Oracle LinkedIn | Blog Mervin Chiang - Consulting Principal at Leonardo Consulting LinkedIn | Twitter | Blog (You can also follow the Red Room itself on Twitter: @OracleRedRoom.) The genesis of this interview goes back to 2009, and the original Red Room blog, on which Sean, Richard, Mervin, and other Red Roomers published a 10-part series of posts that, taken together, form a kind of SOA best-practices guide, presented in an irreverent style that is rare in a lot of technical writing. It was on the basis of their expertise and irreverence that I wanted to get a few of the Red Room bloggers on an Arch2Arch podcast.  Easier said than done. Trying to schedule a group interview with very busy people on the other side of world (they’re actually 15 hours in the future, relative to my location) is not a simple process. The conversations about getting some of the Red Room people on the program began in the summer of 2009. The interview finally happened at 5:30 PM EDT on Tuesday March 30, 2010, which for the panelists, located in Australia, was 8:30 AM on Wednesday March 31, 2010. I was waiting for dinner, and Sean, Richard, and Mervin were waiting for breakfast. But the call went off without a hitch, and the panelists carried on a great discussion of SOA issues. Listen to Part 1 Many thanks to Gareth Llewellyn for his help in putting this together. SOA Best Practices Here’s a complete list of the posts in the original 10-part Red Room series: SOA is Dead. Long Live SOA by Sean Boiling Are you doing SOP’s instead of SOA? by Saul Cunningham All The President's SOA by Sean Boiling SOA – Pay Now or Pay Dearly by Richard Ward SOA where are the skills? by Richard Ward Project Management Pitfalls within SOA by Anton Gouws Viewing SOA as a project instead of an architecture by Saul Cunningham Kiss and Tell by Sean Boiling Failure to implement and adhere to SOA Governance by Mervin Chiang Ten Out Of Ten by Sean Boiling Parts 2 of the Red Room Interview will be available next week, followed by Part 3, so stay tuned: RSS Change in the Wind Beginning with next week’s program, the OTN Arch2Arch Podcast will be rechristened as the OTN ArchBeat Podcast, to better align with this blog. The transformation will be painless – you won’t feel a thing.   del.icio.us Tags: otn,oracle,Archbeat,Arch2Arch,soa,service oriented architecture,podcast Technorati Tags: otn,oracle,Archbeat,Arch2Arch,soa,service oriented architecture,podcast

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  • Podcast Show Notes &ndash; Oracle Coherence and Data Grid Technology - Part 1

    - by Bob Rhubart
    This week’s ArchBeat Podcast program kicks off a three-part series featuring a discussion of Oracle Coherence and data grid technology. Listen to Part 1 The panelists for this discussion are: Cameron Purdy, VP of Development, Oracle Blog | Twitter | LinkedIn | Oracle Mix Aleksandar Seovic, founder and managing director at S4HC Inc. Blog| Twitter | LinkedIn | Oracle Mix | Oracle ACE Profile (Aleks is also the author of  Oracle Coherence 3.5 from Packt Publishing.) John Stouffer, independent consultant, Oracle Applications DBA/Architect Blog |  LinkedIn | Oracle Mix | Oracle ACE Profile Part two will be available on June 23, part 3 on June 30. Coming soon On July 7 the ArchBeat Podcast kicks of a series featuring an open discussion of Architecture and Agility. Stay tuned: RSS   Technorati Tags: oracle,otn,arch2arch,archbeat,coherence,data grid,cameron purdy,aleks seovic del.icio.us Tags: oracle,otn,arch2arch,archbeat,coherence,data grid,cameron purdy,aleks seovic

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  • Steps for MySQL DB Replication

    - by Manish Agrawal
    Following are the steps for MySQL Replication implementation on Linux machine: Pre-implementation steps for DB Replication:   1.    Identify the databases to be replicated 2.    Identify the tables to be ignored during replication per database for example log tables 3.  Carefully identify and replace the variables and paths(locations) mentioned (in bold) in the commands given below with appropriate values 4.  Schedule the maintenance activity in odd hours as these activities will affect all the databases on Master database server       Implementation steps for DB Replication:     1.    Configure the /etc/my.cnf file on Master database server to enable Binary logging, setting of server id and configuring of dbnames for which logging should be done. [mysqld] log-bin=mysql-bin server-id=1 binlog-do-db = dbname   Note: You can specify multiple DB in binlog-do-db by using comma separated dbname values like: dbname1, dbname2, …, dbnameN   2.    On Master database, Grant Replication Slave Privileges, by executing following command on mysql prompt mysql> GRANT REPLICATION SLAVE ON *.* TO slaveuser@<hostname> identified by ‘slavepassword’;   3.    Stop the Master & Slave database by giving the command      mysqladmin shutdown   4.    Start the Master database by giving the command      /usr/local/mysql-5.0.22/bin/mysqld_safe --user=user&     5.    mysql> FLUSH TABLES WITH READ LOCK; Note: Leave the client (putty session) from which you issued the FLUSH TABLES statement running, so that the read lock remains in effect. If you exit the client, the lock is released. 6.    mysql > SHOW MASTER STATUS;          +---------------+----------+--------------+------------------+          | File          | Position | Binlog_Do_DB | Binlog_Ignore_DB |          +---------------+----------+--------------+------------------+          | mysql-bin.003 | 117       | dbname       |                  |          +---------------+----------+--------------+------------------+ Note: Note this information as this will be required while starting of Slave and replication in later steps   7.    Take MySQL dump by giving the following command, In another session window (putty window) run the following command: mysqldump –u user --ignore-table=dbname.tbl_name -–ignore-table=dbname.tbl_name2 --master-data dbname > dbname_dump.db Note: When choosing databases to include in the dump, remember that you will need to filter out databases on each slave that you do not want to include in the replication process.     8.    Unlock the tables on Master by giving following command: mysql> UNLOCK TABLES;   9.    Copy the dump file to Slave DB server   10.  Startup the Slave by using option --skip-slave      /usr/local/mysql-5.0.22/bin/mysqld_safe --user=user --skip-slave&   11.  Restore the dump file on Slave DB server      mysql –u user dbname < dbname_dump.db   12.  Stop the Slave database by giving the command      mysqladmin shutdown   13.  Configure the /etc/my.cnf file on the Slave database server [mysqld] server-id=2 replicate-ignore-table = dbname.tablename   14.  Start the Slave Mysql Server with 'replicate-do-db=DB name' option.      /usr/local/mysql-5.0.22/bin/mysqld_safe --user=user --replicate-do-db=dbname --skip-slave   15.  Configure the settings at Slave server for Master host name, log filename and position within the log file as shown in Step 6 above Use Change Master statement in the MySQL session mysql> CHANGE MASTER TO MASTER_HOST='<master_host_name>', MASTER_USER='<replication_user_name>', MASTER_PASSWORD='<replication_password>', MASTER_LOG_FILE='<recorded_log_file_name>', MASTER_LOG_POS=<recorded_log_position>;   16.  On Slave Servers mysql prompt give the following command: a.     mysql > START SLAVE; b.    mysql > SHOW SLAVE STATUS;         Note: To stop slave for backup or any other activity you can use the following command on the Slave Servers mysql prompt: mysql> STOP SLAVE     Refer following links for more information on MySQL DB Replication: http://dev.mysql.com/doc/refman/5.0/en/replication-options.html http://crazytoon.com/2008/04/21/mysql-replication-replicate-by-choice/ http://dev.mysql.com/doc/refman/5.0/en/mysqldump.html

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  • Podcast Show Notes: Red Room Interview &ndash; Part 3: Ninja BPM

    - by Bob Rhubart
    The third and final segment of my conversation with Red Room bloggers Sean Boiling, Richard Ward, and Mervin Chaing is now available. Listen to Part 1 Listen to Part 2 Listen to Part 3 As you’ll hear, this segment gets its title from another example of Mervin’s tactic for tweaking terminology to make it easier to sell stakeholders on certain SOA concepts. These are some very bright, very knowledgeable guys, so I encourage you to connect with them via the links below to pick their brains on any SOA or related issues that might have you reaching for the aspirin bottle. Sean Boiling - Sales Consulting Manager for Oracle Fusion Middleware LinkedIn | Twitter | Blog Richard Ward - SOA Channel Development Manager at Oracle LinkedIn | Blog Mervin Chiang - Consulting Principal at Leonardo Consulting LinkedIn | Twitter | Blog Once again, you’ll find the complete list of Red Room SOA Best Practice Posts in here. Up Next Next week’s program features another panel discussion recorded during a virtual min meet-up. The panel includes Oracle ACE Directors Mike van Alst (IT-Eye) and Jordan Braunstein (TUSC) along with The Definitive Guide to SOA: Oracle Service Bus author Jeff Davies. Stay tuned: RSS   Technorati Tags: oracle technology network,oracle,archbeat,podcast. arch2arch,soa,bpm del.icio.us Tags: oracle technology network,oracle,archbeat,podcast. arch2arch,soa,bpm

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  • Exchange 2010 Deployment Notes &ndash; iPhone and Exchange ActiveSync issue

    - by BWCA
    After we moved one of our user mailboxes from Exchange 2003 to 2010, the user started getting a Cannot get mail. The connection to the server failed error message on their iPhone device. There are a lot of references on Google to check for inherited permissions to resolve the error message.  We quickly determined that we were not dealing with a permissions issue. After some additional troubleshooting and research, we were able to isolate the problem to a device partnership issue. To resolve the issue, use ADSI Edit to find the user object. When you find the user object, double-click on it and you should see a CN=ExchangeActiveSyncDevices container under the user object as shown below.  On the right-hand side, you should see one or more device partnerships.   Right-click the device partnership according to the device the user is using, and click Delete. After you remove the device partnership, please wait until Active Directory replication completes before you set up the device again.

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  • MS TechDays &ndash; My WP7 Talk&rsquo;s Links and Notes

    - by D'Arcy Lussier
    I hope those that attended my Windows Phone 7 talk this morning at Winnipeg TechDays enjoyed it! As promised, below are relevant links and info from my session. Differences Between Silverlight on Windows and Windows Phone http://msdn.microsoft.com/en-us/library/ff426930(VS.96).aspx#Controls Isolated Storage Best Practices for Windows Phone http://msdn.microsoft.com/en-us/library/ff769544(v=VS.92).aspx Class Library Support for Windows Phone http://msdn.microsoft.com/en-us/library/dd470087(v=VS.96).aspx AppHub and Windows Phone 7 Development Tools http://create.msdn.com Windows Phone 7 Application Certification Requirements (PDF Document) http://go.microsoft.com/fwlink/?LinkID=183220 My Blog Post on WP7 and Micro SD Cards – What You Need To Know http://geekswithblogs.net/dlussier/archive/2010/11/10/142667.aspx If there’s anything else from my presentation that you’d like to know, please comment and let me know!

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  • JavaOne 2013: (Key) Notes of a conference – State of the Java platform and all the roadmaps by Amis

    - by JuergenKress
    Last week’s JavaOne conference provided insights in the roadmap of the Java platform as well as in the current state of things in the Java community. The close relationship between Oracle and IBM concerning Java, the (continuing) lack of such a relationship with Google, the support from Microsoft for Java applications on its Azure cloud and the vibrant developer community – with over 200 different Java User Groups in many countries of the world. There were no major surprises or stunning announcements. Java EE 7 (release in June) was celebrated, the progress of Java 8 SE explained as well as the progress on Java Embedded and ME. The availability of NetBeans 7.4 RC1 and JDK 8 Early Adopters release as well as the open sourcing of project Avatar probably were the only real news stories. The convergence of JavaFX and Java SE is almost complete; the upcoming alignment of Java SE Embedded and Java ME is the next big consolidation step that will lead to a unified platform where developers can use the same skills, development tools and APIs on EE, SE, SE Embedded and ME development. This means that anything that runs on ME will run on SE (Embedded) and EE – not necessarily the reverse because not all SE APIs are part of the compact profile or the ME environment. However, the trimming down of the SE libraries and the increased capabilities of devices mean that a pretty rich JVM runs on many devices – such as JavaFX 8 on the Raspberry PI. The major theme of the conference was Internet of Things. A world of things that are smart and connected, devices like sensors, cameras and equipment from cars, fridges and television sets to printers, security gates and kiosks that all run Java and are all capable of sending data over local network connections or directly over the internet. The number of devices that has these capabilities is rapidly growing. This means that the number of places where Java programs can help program the behavior of devices is growing too. It also means that the volume of data generated is expanding and that we have to find ways to harvest that data, possibly do a local pre-processing (filter, aggregate) and channel the data to back end systems. Terms typically used are edge devices (small, simple, publishing data), gateways (receiving data from many devices, collecting and consolidating, pre-processing, sending onwards to back end – typically using real time event processing) and enterprise services – receiving the data-turned-information from the gateways to further consolidate, distribute and act upon. A cheap device like the Raspberry PI is a perfect way to get started as a Java developer with what embedded (device) programming means and how interaction with physical input and output takes place. Roadmaps The over all progress on Java is visualized in this overview: Read the full article here. WebLogic Partner Community For regular information become a member in the WebLogic Partner Community please visit: http://www.oracle.com/partners/goto/wls-emea ( OPN account required). If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Wiki Technorati Tags: Amis,OOW,Oracle OpenWorld,JavaOne,WebLogic,WebLogic Community,Oracle,OPN,Jürgen Kress

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  • What do you need to know to be a world-class master software developer? [closed]

    - by glitch
    I wanted to bring up this question to you folks and see what you think, hopefully advise me on the matter: let's say you had 30 years of learning and practicing software development in front of you, how would you dedicate your time so that you'd get the biggest bang for your buck. What would you both learn and work on to be a world-class software developer that would make a large impact on the industry and leave behind a legacy? I think that most great developers end up being both broad generalists and specialists in one-two areas of interest. I'm thinking Bill Joy, John Carmack, Linus Torvalds, K&R and so on. I'm thinking that perhaps one approach would be to break things down by categories and establish a base minimum of "software development" greatness. I'm thinking: Operating Systems: completely internalize the core concepts of OS, perhaps gain a lot of familiarity with an OSS one such as Linux. Anything from memory management to device drivers has to be complete second nature. Programming Languages: this is one of those topics that imho has to be fully grokked even if it might take many years. I don't think there's quite anything like going through the process of developing your own compiler, understanding language design trade-offs and so on. Programming Language Pragmatics is one of my favorite books actually, I think you want to have that internalized back to back, and that's just the start. You could go significantly deeper, but I think it's time well spent, because it's such a crucial building block. As a subset of that, you want to really understand the different programming paradigms out there. Imperative, declarative, logic, functional and so on. Anything from assembly to LISP should be at the very least comfortable to write in. Contexts: I believe one should have experience working in different contexts to truly be able to appreciate the trade-offs that are being made every day. Embedded, web development, mobile development, UX development, distributed, cloud computing and so on. Hardware: I'm somewhat conflicted about this one. I think you want some understanding of computer architecture at a low level, but I feel like the concepts that will truly matter will be slightly higher level, such as CPU caching / memory hierarchy, ILP, and so on. Networking: we live in a completely network-dependent era. Having a good understanding of the OSI model, knowing how the Web works, how HTTP works and so on is pretty much a pre-requisite these days. Distributed systems: once again, everything's distributed these days, it's getting progressively harder to ignore this reality. Slightly related, perhaps add solid understanding of how browsers work to that, since the world seems to be moving so much to interfacing with everything through a browser. Tools: Have a really broad toolset that you're familiar with, one that continuously expands throughout the years. Communication: I think being a great writer, effective communicator and a phenomenal team player is pretty much a prerequisite for a lot of a software developer's greatness. It can't be overstated. Software engineering: understanding the process of building software, team dynamics, the requirements of the business-side, all the pitfalls. You want to deeply understand where what you're writing fits from the market perspective. The better you understand all of this, the more of your work will actually see the daylight. This is really just a starting list, I'm confident that there's a ton of other material that you need to master. As I mentioned, you most likely end up specializing in a bunch of these areas as you go along, but I was trying to come up with a baseline. Any thoughts, suggestions and words of wisdom from the grizzled veterans out there who would like to share their thoughts and experiences with this? I'd really love to know what you think!

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  • Can I sync my Tomboy notes from Windows through Ubuntu One?

    - by badp
    I have setup my Ubuntu machine to synchronize Tomboy notes with the Ubuntu One service. I'm now trying Tomboy on Windows and it would be great to have it sync with Ubuntu One. However, while Tomboy for Ubuntu does expose a 'Ubuntu One' service for synchronization, version 1.2.0 of Tomboy for Windows does not. I can, however, use a "Tomboy Web" service. Does Ubuntu One behave as a Tomboy Web service and how would I configure it to do so?

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