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• Solid State Drive Occasionally Freezes For A Minute While OS Is "Beach Balling"

  - by Boris_yo

  Almost a month ago I bought Intel 330 128GB solid state drive, migrated my data with Intel branded limited-feature Acronis from old HDD to new SSD, optimized with Intel Toolbox and started using it. Occassionally I get close to 1 minute freezes while seeing operating system "beach balls" and animations still work, I can interact and click on something but nothing responds, nothing loads. Recently a couple of such freezes occurred in shorter amount of time in a row. I have noticed that if I stop interacting with laptop, the freeze lasts less time than if I was interacting with laptop. But the bigger problem is when freeze just does not end and computer keeps being stuck unlil it is more than half hour and I run out of patience to keep waiting and feeling I need to restart the system because I am not getting anywhere. Such freeze happened while laptop was cold booting into Windows 7. This is when freeze hang occurred and I had to restart, only later to be greeted with Windows recovery screen stating something about faiure of boot sector and asking to insert Windows repair CD. But after I restarted, Windows booted successfully and all was well. I have filmed video of freeze hang occurring in cold boot which you can see here (on video page look below for description): http://www.youtube.com/watch?v=8b7MQlcDTUs As I have mentioned in the beginning, the SSD is less than a month old but here is S.M.A.R.T statistics just in case (TRIM is enabled btw according to CrystalDiskInfo): I want to emphasize that this SSD is the only drive I have, yet it is working in RAID mode (it was enabled initially in BIOS by previous laptop's owner) on Intel Rapid Storage drivers. I am contemplating about switching to AHCI mode but want to be sure this won't cause data loss. Additionally, the stock firmware is the only firmware available currently, yet Intel does not respond to my posts in their community board. If anyone here has this SSD model or generally has experience with SSD drives, I would love to know your thoughts.

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• Hadoop streaming job on EC2 stays in "pending" state

  - by liamf

  Trying to experiment with Hadoop and Streaming using cloudera distribution CDH3 on Ubuntu. Have valid data in hdfs:// ready for processing. Wrote little streaming mapper in python. When I launch a mapper only job using: hadoop jar /usr/lib/hadoop/contrib/streaming/hadoop-streaming*.jar -file /usr/src/mystuff/mapper.py -mapper /usr/src/mystuff/mapper.py -input /incoming/STBFlow/* -output testOP hadoop duly decides it will use 66 mappers on the cluster to process the data. The testOP directory is created on HDFS. A job_conf.xml file is created. But the job tracker UI at port 50030 never shows the job moving out of "pending" state and nothing else happens. CPU usage stays at zero. (the job is created though) If I give it a single file (instead of the entire directory) as input, same result (except Hadoop decides it needs 2 mappers instead of 66). I also tried using the "dumbo" Python utility and launching jobs using that: same result: permanently pending. So I am missing something basic: could someone help me out with what I should look for? The cluster is on Amazon EC2. Firewall issues maybe: ports are enabled explicitly, case by case, in the cluster security group.

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• Mysql connections hanging in login state

  - by Mark Rose

  Suddenly today, I had an issue with connections to mysql hanging when connecting by IP address (e.g. mysql -h 10.1.248.20), but I could still connection using localhost fine, regardless the user. mysql> show processlist; +----+----------------------+------------------+------+---------+------+-----------------------------------------------------------------------+------------------+ | Id | User | Host | db | Command | Time | State | Info | +----+----------------------+------------------+------+---------+------+-----------------------------------------------------------------------+------------------+ | 1 | system user | | NULL | Connect | 10 | Connecting to master | NULL | | 2 | system user | | NULL | Connect | 10 | Has read all relay log; waiting for the slave I/O thread to update it | NULL | | 37 | unauthenticated user | 10.1.248.3:36694 | NULL | Connect | NULL | login | NULL | | 38 | unauthenticated user | 10.1.248.3:36695 | NULL | Connect | NULL | login | NULL | | 39 | unauthenticated user | 10.1.248.3:36696 | NULL | Connect | NULL | login | NULL | | 40 | root | localhost | NULL | Query | 0 | NULL | show processlist | +----+----------------------+------------------+------+---------+------+-----------------------------------------------------------------------+------------------+ 6 rows in set (0.00 sec) Yes, I realize replication was broken in that output above; that was after I tried restart MySQL (it was an emergency). And as suddenly as things stopped working, they started working again. DNS was working fine at the time. Replication was still working. MySQL was responsive. Does anyone have any idea what would cause MySQL logins from remote IPs to hang suddenly?

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• GridView doesn't remember state between postbacks

  - by Ryan

  Hi, I have a simple ASP page with databound grid (bound to an object source). The grid is within the page of a wizard and has a 'select' checkbox for each row. In one stage of the wizard, I bind the GridView: protected void Wizard1_NextButtonClick(object sender, WizardNavigationEventArgs e) { ... // Bind and display matches GridViewMatches.EnableViewState = true; GridViewMatches.DataSource = getEmailRecipients(); GridViewMatches.DataBind(); And when the finish button is clicked, I iterate through the rows and check what's selected: protected void Wizard1_FinishButtonClick(object sender, WizardNavigationEventArgs e) { // Set the selected values, depending on the checkboxes on the grid. foreach (GridViewRow gr in GridViewMatches.Rows) { Int32 personID = Convert.ToInt32(gr.Cells[0].Text); CheckBox selected = (CheckBox) gr.Cells[1].FindControl("CheckBoxSelectedToSend"); But at this stage GridViewMatches.Rows.Count = 0! I don't re-bind the grid, I shouldn't need to, right? I expect the view-state to maintain the state. (Also, if I do rebind the grid, my selection checkboxes will be cleared) NB: This page also dynamically adds user controls in OnInit method. I have heard that it might mess with the view state, but as far as I can tell, I am doing it correctly and the viewstate for those added controls seems to work (values are persisted between postbacks) Thanks a lot in advance for any help! Ryan UPDATE: Could this be to do with the fact I am setting the datasource programatically? I wondered if the asp engine was databinding the grid during the page lifecycle to a datasource that was not yet defined. (In a test page, the GridView is 'automatically' databound'. I don't want the grid to re-bound I just want the values from the viewstate from the previous post! Also, I have this in the asp header: ViewStateEncryptionMode="Never" - this was to resolve an occasional 'Invalid Viewstate Validation MAC' message Thanks again Ryan

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• Integration tests in Continuous Integration environment: Database and filesystem state

  - by dario_ramos

  I'm trying to implement automated integration tests for my application. It's a very complex monster. You could say that its database and part of the filesystem are part of its state, because it saves image files in the hard drive, and references to those in the DB. The software needs all those, in a coherent state, to work properly. Back to writing tests: To run any relevant test, I need some image files in the filesystem, and certain records filled in the database. I thought of putting all of these in a separate folder called TestEnvironmentData in the repository, and retrieving them from the Continuous Integration Server (Team City), but a colleague said the repo is quite full as it is, and that I should set up a special directory, and databases, only in the Continuous Integration server. I don't like that because the tests success depend on me manually mantaining stuff in the server, and restoring initial state before every test becomes cumbersome. What do you guys do when you need to write integration tests for an app like this? The main goal is having an automated test harness to approach a large scale refactoring. There's lots of spaghetti code and the app's current architecture is hardly unit testable, that's why I decided on integration tests first. Any alternative approach is welcome.

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• JQUERY: Setting Active state on animated menu tabs

  - by Tony

  I have image sprites that use JQuery to set the BG position on mouseover and mouseout events. When I set the active state BG position using JQUERY it works fine until I move my cursor away from the active 'tab' which then fires the mouseout event animation. What I want is the mouseClick event to stop the animation on the active tab but still allow the animation effect to work on the other tabs, and when another tab is clicked for the active state to be removed from the current tab to the new 'active' tab. JQuery $(function(){ /* This script changes main nav links hover state*/ $('.navigation a') .css( {backgroundPosition: "-1px -120px"} ) .mouseover(function(){ $(this).stop().animate({backgroundPosition:"(-1px -240px)"}, {duration:400}) }) .mouseout(function(){ $(this).stop().animate({backgroundPosition:"(-1px -120px)"}, {duration:400, complete:function (){ $(this).css({backgroundPosition: "-1px -120px"}) }}) }) }); $(document).ready(function(){ $("a").click(function(){ $(this).css({backgroundPosition: "-1px -235px"}); }); }); HTML <ul class="navigation"> <li><a href="#index" tabindex="10" title="Home" id="homeButton"></a></li> <li><a href="#about" tabindex="20" title="About us" id="aboutButton"></a></li> <li><a href="#facilities" tabindex="30" title="Our facilities and opening Times" id="facilitiesButton"></a></li> <li><a href="#advice" tabindex="40" title="Advice and useful links" c id="adviceButton"></a></li> <li><a href="#find" tabindex="50" title="How to find Us" id="findButton"></a></li> <li><a href="#contact" tabindex="60" title="Get in touch with us" id="contactButton"></a></li> </ul> You can see what I've got so far here Thanks in advance for any help

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• Flex 4 Button state in a HGroup

  - by chchrist

  Hi all, I have a HGroup with some buttons inside which is my application's menu. <s:HGroup id="nav"> <s:Button id="homeButton" label="Home" /> <s:Button id="showroomButton" label="Showroom" /> <s:Button label="Catalogue" /> <s:Button label="Offers" /> <s:Button label="My Account" /> <s:Button label="My Orders" /> </s:HGroup> What I want is when I click for example the #homeButton to change it's state to "over", become disabled and reset all other buttons to the "up" state. I've written this function private function resetNavState():void { for(var i:int = 0,ii:int = nav.numChildren-1;i<ii;i++) { Button(nav.getChildAt(i)).mouseEnabled = true; Button(nav.getChildAt(i)).skin.setCurrentState("up",true); } } And then on the homeButton click handler for example i use protected function homeButton_clickHandler(event:MouseEvent):void { resetNavState(); currentState = "home"; homeButton.skin.setCurrentState("over",true); homeButton.mouseEnabled = false; } I resets the states of the #nav buttons but it doesn't change the state of the pressed button. Any ideas? Thanx in advance

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• jCarousel - achieving an active state AND wrap:circular

  - by swisstony

  Hey folks A while back I implemented the jCarousel image solution for a client that required a numbered active state. After a bit of googling a found the answer but noticed that the preferred circular option would not work. What would happen is that once the carousel had cycled through all its (5) images, upon the return to the first, the active state would be lost, because, according to jcarousel it was actually the 6th (the index just keeps on incrementing). I just went ahead and instead used wrap:'both' which at least had a correctly functioning active state. However now the client says they dont like this effect and simply want the animation to return to position 1 after the final image. This means I need to get'wrap: 'both' working somehow. Below is my current code. Can someone please solve this one, as its a little above my head! function highlight(carousel, obejctli,liindex,listate){ jQuery('.jcarousel-control a:nth-child('+ liindex +')').attr("class","active"); }; function removehighlight(carousel, obejctli,liindex,listate){ jQuery('.jcarousel-control a:nth-child('+ liindex +')').removeAttr("class","active"); }; jQuery('#mycarousel').jcarousel({ initCallback: mycarousel_initCallback, auto: 5, wrap: 'both', vertical: true, scroll: 1, buttonNextHTML: null, buttonPrevHTML: null, animation: 1000, itemVisibleInCallback: highlight, itemVisibleOutCallback: removehighlight }); }); Thanks in advance

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• Use Zip to Pre-Populate City/State Form with jQuery AJAX

  - by Paul

  I'm running into a problem that I can solve fine by just submitting a form and calling a db to retrieve/echo the information, but AJAX seems to be a bit different for doing this (and is what I need). Earlier in a form process I ask for the zip code like so: <input type="text" maxlength="5" size="5" id="zip" /> Then I have a button to continue, but this button just runs a javascript function that shows the rest of the form. When the rest of the form shows, I want to pre-populate the City input with their city, and pre-populate the State dropdown with their state. I figured I would have to find a way to set city/state to variables, and echo the variables into the form. But I can't figure out how to get/set those variables with AJAX as opposed to a form submit. Here's how I did it without ajax: $zip = mysql_real_escape_string($_POST['zip']); $q = " SELECT city FROM citystatezip WHERE zip = $zip"; $r = mysql_query($q); $row = mysql_fetch_assoc($r); $city = $row['city']; Can anybody help me out with using AJAX to set these variables? Thanks!

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• Concrete examples of state sharing between multiple viewmodels (WPF MVVM)

  - by JohnMetta

  I have a WPF/Entity Framework (4.0) project with many objects. I'd like to build the application so that that I can have object selection state shared across viewmodels. For Example: We have Cars, Drivers, Passengers, and Cargo classes. We also have UserControls for CarList, DriverList, etc. and editor windows for CarEditor, DriverEditor, etc. Furthermore, we have viewmodels for all of these (CarListViewModel, DriverListViewModel, CargoEditorViewModel, etc). This all composes a dockable interface where the user can have multiple object lists, editors, and viewers open. What I want is a concrete code example of how to wireup multiple viewmodels so that selecting a car in the CarList will cause that car to go live in the CarEditorView, but also be selected in any other view for which the context is valid (such as a DriverByCarView- or just DriverList if there is a filter predicate). There are a number of suggestions and discussions based on this question. The two methods that seem to dominate are: 3018307: Discusses state sharing by mentioning a messaging subsystem 1159035: Discusses state sharing by using an enclosing viewmodel Is one of these approaches better than the other? Does anyone have a concrete example of either/both of these methods in the form of a write-up or small code project? I'm still learning WPF, so pointers to entry points for reading API fundamentals are appreciated, but looking at code examples is where I usually go. Thanks In case anyone is interested, here are some other similar discussions: 3816961: Discusses returning multiple viewmodels depending on object type (i.e. a collection of arbitrary types adhering to a specific interface) 1928130: Discusses whether it is a good idea to aggregate viewmodels as properties of other viewmodels (e.g. a MainWindow viewmodel composed of panel viewmodels) 1120061: Essentially discusses whether to have use a viewmodel-per-model strategy or a viewmodel-per-view-element strategy. 4244222: Discusses whether or not to nest the viewmodels when using a nested object hierarchy. 4429708: Discusses sharing collections between viewmodels directly, but doesn't go into detail. List item: Discusses managing multiple selections within a single viewmodel.

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• Active State Image Display

  - by fmz

  I have some images that need to change, based not only on hover, but also on active state. If you look at the page here: http://site427.mysite4now.net/tazthedog/site1/ There are some tabs with Screen Printing Quick Links, etc. The tab image is associated with the link and displays properly. The icon in tabs defaults to the gray and turns blue on mouse over, however, I also need it to be blue on the "active" state. Here is the css: .quick-links em:hover { background: transparent url(../images/quick-links.png) 10px 9px no-repeat ; display: block ; float: left; } Here is the html: <ul class="tabs"> <li class="quick-links"> <a href="#quickLinks" id=""> <em> <span>Screen Printing Quick Links</span> </em> </a> </li> <li class="distributor-ql"> <a href="#distributorQL" id=""> <em> <span>Dealer &amp; Distributor Quick Links</span> </em> </a> </li> </ul> I tried adding a .quick-links em:active... but that doesn't maintain it. I know there is a way to keep the icon blue while in the active state, I just need a little help to understand what that is. Thanks!

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• .NET port with Java's Map, Set, HashMap

  - by Nikos Baxevanis

  I am porting Java code in .NET and I am stuck in the following lines that (behave unexpectedly in .NET). Java: Map<Set<State>, Set<State>> sets = new HashMap<Set<State>, Set<State>>(); Set<State> p = new HashSet<State>(); if (!sets.containsKey(p)) { ... } The equivalent .NET code could possibly be: IDictionary<HashSet<State>, HashSet<State>> sets = new Dictionary<HashSet<State>, HashSet<State>>(); HashSet<State> p = new HashSet<State>(); if (!sets.containsKey(p)) { /* (Add to a list). Always get here in .NET (??) */ } However the code comparison fails, the program think that "sets" never contain Key "p" and eventually results in OutOfMemoryException. Perhaps I am missing something, object equality and identity might be different between Java and .NET. I tried implementing IComparable and IEquatable in class State but the results were the same. Edit: What the code does is: If the sets does not contain key "p" (which is a HashSet) it is going to add "p" at the end of a LinkedList. The State class (Java) is a simple class defined as: public class State implements Comparable<State> { boolean accept; Set<Transition> transitions; int number; int id; static int next_id; public State() { resetTransitions(); id = next_id++; } // ... public int compareTo(State s) { return s.id - id; } public boolean equals(Object obj) { return super.equals(obj); } public int hashCode() { return super.hashCode(); }

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• Relay Access Denied (State 13) Postfix + Dovecot + Mysql

  - by Pierre Jeptha

  So we have been scratching our heads for quite some time over this relay issue that has presented itself since we re-built our mail-server after a failed Webmin update. We are running Debian Karmic with postfix 2.6.5 and Dovecot 1.1.11, sourcing from a Mysql database and authenticating with SASL2 and PAM. Here are the symptoms of our problem: 1) When users are on our local network they can send and receive 100% perfectly fine. 2) When users are off our local network and try to send to domains not of this mail server (ie. gmail) they get the "Relay Access Denied" error. However users can send to domains of this mail server when off the local network fine. 3) We host several virtual domains on this mailserver, the primary domain being airnet.ca. The rest of our virtual domains (ex. jeptha.ca) cannot receive email from domains not hosted by this mailserver (ie. gmail and such cannot send to them). They receive bounce backs of "Relay Access Denied (State 13)". This is regardless of whether they are on our local network or not, which is why it is so urgent for us to get this solved. Here is our main.cf from postfix: myhostname = mail.airnet.ca mydomain = airnet.ca smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no smtpd_sasl_type = dovecot queue_directory = /var/spool/postfix smtpd_sasl_path = private/auth smtpd_sender_restrictions = permit_mynetworks permit_sasl_authenticated smtp_sasl_auth_enable = yes smtpd_sasl_auth_enable = yes append_dot_mydomain = no readme_directory = no smtp_tls_security_level = may smtpd_tls_security_level = may smtp_tls_note_starttls_offer = yes smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem smtpd_tls_loglevel = 1 smtpd_tls_received_header = yes smtpd_tls_auth_only = no alias_maps = proxy:mysql:/etc/postfix/mysql/alias.cf hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = mail.airnet.ca, airnet.ca, localhost.$mydomain mailbox_command = procmail -a "$EXTENSION" mailbox_size_limit = 0 recipient_delimiter = + local_recipient_maps = $alias_maps $virtual_mailbox_maps proxy:unix:passwd.byname home_mailbox = /var/virtual/ mail_spool_directory = /var/spool/mail mailbox_transport = maildrop smtpd_helo_required = yes disable_vrfy_command = yes smtpd_etrn_restrictions = reject smtpd_data_restrictions = reject_unauth_pipelining, permit show_user_unknown_table_name = no proxy_read_maps = $local_recipient_maps $mydestination $virtual_alias_maps $virtual_alias_domains $virtual_mailbox_maps $virtual_mailbox_domains $relay_recipient_maps $relay_domains $canonical_maps $sender_canonical_maps $recipient_canonical_maps $relocated_maps $transport_maps $mynetworks $virtual_mailbox_limit_maps $virtual_uid_maps $virtual_gid_maps virtual_alias_domains = message_size_limit = 20971520 transport_maps = proxy:mysql:/etc/postfix/mysql/vdomain.cf virtual_mailbox_maps = proxy:mysql:/etc/postfix/mysql/vmailbox.cf virtual_alias_maps = proxy:mysql:/etc/postfix/mysql/alias.cf hash:/etc/mailman/aliases virtual_uid_maps = proxy:mysql:/etc/postfix/mysql/vuid.cf virtual_gid_maps = proxy:mysql:/etc/postfix/mysql/vgid.cf virtual_mailbox_base = / virtual_mailbox_limit = 209715200 virtual_mailbox_extended = yes virtual_create_maildirsize = yes virtual_mailbox_limit_maps = proxy:mysql:/etc/postfix/mysql/vmlimit.cf virtual_mailbox_limit_override = yes virtual_mailbox_limit_inbox = no virtual_overquote_bounce = yes virtual_minimum_uid = 1 maximal_queue_lifetime = 1d bounce_queue_lifetime = 4h delay_warning_time = 1h append_dot_mydomain = no qmgr_message_active_limit = 500 broken_sasl_auth_clients = yes smtpd_sasl_path = private/auth smtpd_sasl_local_domain = $myhostname smtpd_sasl_security_options = noanonymous smtpd_sasl_authenticated_header = yes smtp_bind_address = 142.46.193.6 relay_domains = $mydestination mynetworks = 127.0.0.0, 142.46.193.0/25 inet_interfaces = all inet_protocols = all And here is the master.cf from postfix: # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - - - - smtpd #submission inet n - - - - smtpd # -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #smtps inet n - - - - smtpd # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - - - - qmqpd pickup fifo n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - - 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - - - - smtp -o smtp_fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} # # See the Postfix UUCP_README file for configuration details. # uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # Other external delivery methods. # ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} spfpolicy unix - n n - - spawn user=nobody argv=/usr/bin/perl /usr/sbin/postfix-policyd-spf-perl smtp-amavis unix - - n - 4 smtp -o smtp_data_done_timeout=1200 -o smtp_send_xforward_command=yes -o disable_dns_lookups=yes #127.0.0.1:10025 inet n - n - - smtpd dovecot unix - n n - - pipe flags=DRhu user=dovecot:21pever1lcha0s argv=/usr/lib/dovecot/deliver -d ${recipient Here is Dovecot.conf protocols = imap imaps pop3 pop3s disable_plaintext_auth = no log_path = /etc/dovecot/logs/err info_log_path = /etc/dovecot/logs/info log_timestamp = "%Y-%m-%d %H:%M:%S ". syslog_facility = mail ssl_listen = 142.46.193.6 ssl_disable = no ssl_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem ssl_key_file = /etc/ssl/private/ssl-cert-snakeoil.key mail_location = mbox:~/mail:INBOX=/var/virtual/%d/mail/%u mail_privileged_group = mail mail_debug = yes protocol imap { login_executable = /usr/lib/dovecot/imap-login mail_executable = /usr/lib/dovecot/rawlog /usr/lib/dovecot/imap mail_executable = /usr/lib/dovecot/gdbhelper /usr/lib/dovecot/imap mail_executable = /usr/lib/dovecot/imap imap_max_line_length = 65536 mail_max_userip_connections = 20 mail_plugin_dir = /usr/lib/dovecot/modules/imap login_greeting_capability = yes } protocol pop3 { login_executable = /usr/lib/dovecot/pop3-login mail_executable = /usr/lib/dovecot/pop3 pop3_enable_last = no pop3_uidl_format = %08Xu%08Xv mail_max_userip_connections = 10 mail_plugin_dir = /usr/lib/dovecot/modules/pop3 } protocol managesieve { sieve=~/.dovecot.sieve sieve_storage=~/sieve } mail_plugin_dir = /usr/lib/dovecot/modules/lda auth_executable = /usr/lib/dovecot/dovecot-auth auth_process_size = 256 auth_cache_ttl = 3600 auth_cache_negative_ttl = 3600 auth_username_chars = abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@ auth_verbose = yes auth_debug = yes auth_debug_passwords = yes auth_worker_max_count = 60 auth_failure_delay = 2 auth default { mechanisms = plain login passdb sql { args = /etc/dovecot/dovecot-sql.conf } userdb sql { args = /etc/dovecot/dovecot-sql.conf } socket listen { client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } master { path = /var/run/dovecot/auth-master mode = 0600 } } } Please, if you require anything do not hesistate, I will post it ASAP. Any help or suggestions are greatly appreciated! Thanks, Pierre

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• Could you give me an example of how to attach an object in Deleted state – I keep getting an exception [migrated]

  - by carewithl

  From MSDN : An object in the Deleted state can only be attached when the ObjectStateManager is already tracking the relationship instance. Could you give me an example of how to attach an object in the Deleted state. I tried the following and got "System.InvalidOperationException: The object being attached is in an added or deleted state. Relationships cannot be created for objects in this state". var contact = context.Contacts.First(); Console.WriteLine(contact.Addresses.Count()); // 2 var address = contact.Addresses.First(); context.Addresses.DeleteObject(address); contact.Addresses.Attach(address); // InvalidOperationException thank you

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• game state singleton cocos2d, initWithEncoder always returns null

  - by taber

  Hi, I'm trying to write a basic test "game state" singleton in cocos2d, but for some reason upon loading the app, initWithCoder is never called. Any help would be much appreciated, thanks. Here's my singleton GameState.h: #import "cocos2d.h" @interface GameState : NSObject <NSCoding> { NSInteger level, score; Boolean seenInstructions; } @property (readwrite) NSInteger level; @property (readwrite) NSInteger score; @property (readwrite) Boolean seenInstructions; +(GameState *) sharedState; +(void) loadState; +(void) saveState; @end ... and GameState.m: #import "GameState.h" #import "Constants.h" @implementation GameState static GameState *sharedState = nil; @synthesize level, score, seenInstructions; -(void)dealloc { [super dealloc]; } -(id)init { if(!(self = [super init])) return nil; level = 1; score = 0; seenInstructions = NO; return self; } +(void)loadState { @synchronized([GameState class]) { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *saveFile = [documentsDirectory stringByAppendingPathComponent:kSaveFileName]; Boolean saveFileExists = [[NSFileManager defaultManager] fileExistsAtPath:saveFile]; if(!sharedState) { sharedState = [GameState sharedState]; } if(saveFileExists == YES) { [sharedState release]; sharedState = [[NSKeyedUnarchiver unarchiveObjectWithFile:saveFile] retain]; } // at this point, sharedState is null, saveFileExists is 1 if(sharedState == nil) { // this always occurs CCLOG(@"Couldn't load game state, so initialized with defaults"); sharedState = [self sharedState]; } } } +(void)saveState { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *saveFile = [documentsDirectory stringByAppendingPathComponent:kSaveFileName]; [NSKeyedArchiver archiveRootObject:[GameState sharedState] toFile:saveFile]; } +(GameState *)sharedState { @synchronized([GameState class]) { if(!sharedState) { [[GameState alloc] init]; } return sharedState; } return nil; } +(id)alloc { @synchronized([GameState class]) { NSAssert(sharedState == nil, @"Attempted to allocate a second instance of a singleton."); sharedState = [super alloc]; return sharedState; } return nil; } +(id)allocWithZone:(NSZone *)zone { @synchronized([GameState class]) { if(!sharedState) { sharedState = [super allocWithZone:zone]; return sharedState; } } return nil; } ... -(void)encodeWithCoder:(NSCoder *)coder { [coder encodeInt:level forKey:@"level"]; [coder encodeInt:score forKey:@"score"]; [coder encodeBool:seenInstructions forKey:@"seenInstructions"]; } -(id)initWithCoder:(NSCoder *)coder { CCLOG(@"initWithCoder called"); self = [super init]; if(self != nil) { CCLOG(@"initWithCoder self exists"); level = [coder decodeIntForKey:@"level"]; score = [coder decodeIntForKey:@"score"]; seenInstructions = [coder decodeBoolForKey:@"seenInstructions"]; } return self; } @end ... I'm saving the state on app exit, like this: - (void)applicationWillTerminate:(UIApplication *)application { [GameState saveState]; [[CCDirector sharedDirector] end]; } ... and loading the state when the app finishes loading, like this: - (BOOL) application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { ... [GameState loadState]; ... } I've tried moving around where I call loadState too, for example in my main CCScene, but that didn't seem to work either. Thanks again in advance.

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• cookieless sessions with ajax

  - by thezver

  ok, i know you get sick from this subject. me too :( I've been developing a quite "big application" with PHP & kohana framework past 2 years, somewhat-successfully using my framework's authentication mechanism. but within this time, and as the app grown, many concerning state-preservation issues arisen. main problems are that cookie-driven sessions: can't be used for web-service access ( at least it's really not nice to do so.. ) in many cases problematic with mobile access don't allow multiple simultaneous apps on same browser ( can be resolved by hard trickery, but still.. ) requires many configurations and mess to work 100% right, and that's without the --browser issues ( disabled cookies, old browsers bugs & vulnerabilities etc ) many other session flaws stated in this old thread : http://lists.nyphp.org/pipermail/talk/2006-December/020358.html After a really long research, and without any good library/on-hand-solution to feet my needs, i came up with a custom solution to majority of those problems . Basically, i'ts about emulating sessions with ajax calls, with additional security/performance measures: state preserved by interchanging SID(+hash) with client on ajax calls. state data saved in memcache(or equivalent), indexed by SID security achieved by: appending unpredictible hash to SID egenerating hash on each request & validating it validating fingerprint of client on each request ( referrer,os,browser etc) (*)condition: ajax calls are not simultaneous, to prevent race-condition with session token. (hopefully Ext-Direct solves that for me) From the first glance that supposed to be not-less-secure than equivalent cookie-driven implementation, and at the same time it's simple, maintainable, and resolves all the cookies flaws.. But i'm really concerned because i often hear the rule "don't try to implement custom security solutions". I will really appreciate any serious feedback about my method, and any alternatives. also, any tip about how to preserve state on page-refresh without cookies would be great :) but thats small technical prob. Sorry if i overlooked some similar post.. there are billions of them about sessions . Big thanks in advance ( and for reading until here ! ).

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• Android ImageButton with a selected state?

  - by Joren

  If I was using an ImageButton with a selector for its background, is there a state I can change which will make it change its appearance? Right now I can get it to change images when pressed, but there seems to be no "highlighted" or "selected" or similar state which lets me toggle it's appearance at will. Here's my XML, it only changes appearance when pressed. <selector xmlns:android="http://schemas.android.com/apk/res/android"> <item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/map_toolbar_details_selected" /> <item android:state_focused="true" android:state_pressed="true" android:drawable="@drawable/map_toolbar_details_selected" /> <item android:state_focused="false" android:state_pressed="true" android:drawable="@drawable/map_toolbar_details_selected" /> <item android:drawable="@drawable/map_toolbar_details" />

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• How to express loops in Communication Diagrams?

  - by devoured elysium

  I'd like to know how to express in a Communication Diagram something like: foreach (User user in UsersCatalog) { list.add(user.getId()); } I actually have something like the following (Utilizador = User) but as you'll notice it does not represent well the fact that I am doing something like a loop. How can I accomplish this?

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• Elasticsearch Shard stuck in INITIALIZING state

  - by Peeyush

  I stopped one of my elastic search node & as a normal behavior elastic search started relocating my shard on that node to another node. But even after 15 hours it is still stuck in INITIALIZING state. Also that shard is fluctuating between two nodes,for some time it stays on one node then automatically shift to another node & keep on doing that after every few hours. Main issue is it is still in INITIALIZING state after so many hours. I am using version 1.2.1. This shard which is stuck, it is a replica. I am getting this error in logs: [ERROR][index.engine.internal ] [mynode] [myindex][3] failed to acquire searcher, source delete_by_query java.lang.NullPointerException [WARN ][index.engine.internal ] [mynode] [myindex][3] failed engine [deleteByQuery/shard failed on replica] [WARN ][cluster.action.shard ] [mynode] [myindex][3] sending failed shard for [myindex][3], node[Sp3URfNVQlq2i4i3EjCakw], [R], s[INITIALIZING], indexUUID [kTikCHshQMKEQ_jAuWWWnw], reason [engine failure, message [deleteByQuery/shard failed on replica][EngineException[[myindex][3] failed to acquire searcher, source delete_by_query]; nested: NullPointerException; ]]

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• Determine the State given a Lat/Long using Google API in android

  - by user244190

  Is there a way to determine the State in which a given Lat/Long resides using the Google Api in Android? thx

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• ASP.NET Session State Error only on default document

  - by schmidty

  I have a site where when accessing via site.com/default.aspx everything is fine, however when accessing via site.com/ I get a session error as follows: "Session state can only be used when enableSessionState is set to true, either in a configuration file or in the Page directive. Please also make sure that System.Web.SessionStateModule or a custom session state module is included in the \\ section in the application configuration." I have confirmed that default.aspx is the highest priority default document and that it is the page being loaded. However why is this session error only occurring when accessing via the default document? The server is 2008 R2 and IIS 7.5.

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• transformation of UML Diagrams to specification Z using xsl transformation

  - by Mona

  hi. I'm trying to transform some uml diagrams (of singleton , AbstractFactory ...) to Z specification , first i transformed my uml diagram to an xml file using starUML then i used an xsl program and saxon to transform my xml file to .tex( for Z ) , but it didnt work . if someone has an idea about how the xsl program should be written (just maybe the steps) that will be great. thanks

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• Load Country/State/City

  - by Abu Hamzah

  I have chain of drop down like Country / state and City. Is there is any way to wait until the drop down population then proceed further? like first load the country and then based on the select of an country then load the state and same as city.... function populateLists(listType) { // on success do this:<br> $.ajax({ type:"POST", url:"Wizard_Using_PageMethod.aspx/GetCountry", data: "{}", contentType: "application/json; charset=utf-8", dataType:"json" } }); [WebMethod] public static CountryList GetCountry() { CountryList country = new CountryList(); ///go to db and get the data return country; }

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• Collaboration Diagrams: how to represent setting a variable's and attribute's value to a specified v

  - by devoured elysium

  Let's assume I have a class called MyClass with an attribute called MyAttribute and a method called MyMethod(). Inside that method I'd like to have a variable called MyVariable. I'd like to set the value of MyVariable to "MyVariable" and MyAttribute to "MyAttribute" inside the call to MyMethod(). How can I do this in a Collaboration Diagram? I can't find any info of this kind on the internet and the book I'm studying from (Applying UML and Patterns) is very vague in the details. Thanks

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• state and federal representatives by zip

  - by antony.trupe

  Is there a service that will provide information on who the state and federal representatives are by zip+4?

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