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Cannot Set Connection To Blocking Mode Codeigniter

The time now is 09:43. up vote 11 down vote favorite 5 I have a long-running script that seems to occasionally report the following NOTICE-level error: pg_send_query(): Cannot set connection to blocking mode It seems to Problem was visible with PHP 5.3.2 and Postgres 8.4 running on Ubuntu 10.04 LTS x86-64. –Mikko Rantalainen Jan 27 '11 at 9:19 2 If you hit this problem and are levani commented Jun 26, 2012 To say the truth I have never used permanent connections on any of my sites. http://culturahq.com/cannot-set/cannot-set-connection-to-blocking-mode.html

Subscribing... share|improve this answer answered May 15 '09 at 11:07 Tometzky 11.9k12843 You should know, that link doesn't exactly pull any documents back... –NotMe Oct 13 '09 at 20:33 Site policy | Privacy | Contact ZABBIX Forums > Zabbix Discussions and Feedback > Zabbix Troubleshooting and Problems Cannot set connection to blocking mode User Name Remember Me? The problem is not the error message, because if something is wrong with the database connection, it is correct to print an error (or to call the error handler). http://stackoverflow.com/questions/865017/pg-send-query-cannot-set-connection-to-blocking-mode

If the user refreshes the page they can usually get around this but it it is very bothersome and frustrating. levani commented Dec 21, 2011 Because it creates permanent mysql connections wich are kept in sleeping mode for a long time, that causes database overload in case of high user traffic. snipped function setup stuff ...> if (PQ_SETNONBLOCKING(pgsql, 1)) { php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Cannot set connection to nonblocking mode"); RETURN_FALSE; } <... Looking at the code in ext/pgsql/pgsql.c, this setting is only used in pg_connect, but has no influence in the function in question, _rollback_transactions. [2005-04-11 09:28 UTC] exaton at free dot fr

When I google this I see a php bug mentioned back in 2005, but nothing recent. We use persistent connections to a PostgreSQL database over an unreliable internet connection, that breaks every now and then. Edit: There are no entries in the postgres log at the time the error occurred, suggesting this is solely a connection error, not something going wrong on postgres' side (e.g. philsturgeon commented Jun 26, 2012 It's something that every site needs to think about.

I've already had this kind of problem recently. Looking at the source code in PHPs pgsql.c, you can find: /* {{{ proto bool pg_send_query(resource connection, string query) Send asynchronous query */ PHP_FUNCTION(pg_send_query) { <... Source: http://www.postgresql.org/docs/9.1/static/libpq-async.html Source: http://

Once I changed the parameter from TRUE to FALSE the problem has gone. It's not messing up the page apart from the notice output ; the rest of the SQL in my scripts works just fine. [2005-07-06 13:06 UTC] [email protected] Please try using this bugs.php.net/ #65015 URL: The information about this bug in Launchpad is automatically pulled daily from the remote bug. Also note: Don't forget to clear your browser cache afterward, or else your going to keep getting this message when you refresh a page ( F5 ).

Teenage daughter refusing to go to school What are the applications of taking the output of an amp with a microphone? narfbg commented Jun 26, 2012 I still think that switching pconnect to FALSE by default wasn't the right thing to do (considering #1265, the issue isn't in the pconnect setting itself) Actual data loss depends on PHP application code running on top of the library and may or may not happen in practice. Try to change following ini setting to On. ---- ; Detect broken persistent links always with pg_pconnect(). ; Auto reset feature requires a little overheads.

Normally, this is not a big deal, because we have local database caches which is used as a failsafe solution, and all scripts are programmed in a way to watch out this contact form If the query string is too long (in bytes), the pg_send_query() will fail because of implementation bug (missing flush before touching counnection). Port fee transparency more hot questions question feed default about us tour help blog chat data legal privacy policy work here advertising info mobile contact us feedback Technology Life / Arts What is this a symptom of?

Well done! –Bill Karwin Oct 13 '09 at 21:40 1 I think I've unfortunately been successful in repeating this error with pg_query() combined with pg_pconnect(). Comment on this change (optional) Email me about changes to this bug report php5 (Ubuntu) Edit Fix Released Undecided Unassigned Edit You need to log in to change this bug's A patch, some testing, any configuration change... have a peek here Since not quite many people complain about the same problem, I don't refuse that there could be some other reasons causing this problem, however the server problem was solved when we

if you do actually need asynchronous mode then try the patch at https://bugs.php.net/bug.php?id=65015 share|improve this answer answered Jun 14 '13 at 1:28 Vektah 22113 One can also install PgBouncer You signed out in another tab or window. I've just upgraded to PG 8.0.2.

However, after carefully considering all options, IMHO i think that removing the line in the PHP sources that raises the error is the cleanest solution, with the main argument for it

I mean the database drive... Moodle in English General helpPHP Notice: Unknown: Cannot set connection to blocking mode in Unknown on line 0Usability: Learner's Full name showing in breadcrumbs despite setting Fullname = Firstnameto create a Actual result: -------------- Notice: (null)(): Cannot set connection to blocking mode in Unknown on line 0 Patches Add a PatchPull Requests Add a Pull RequestHistoryAllCommentsChangesGit/SVN commitsRelated reports [2005-01-12 07:13 UTC] yohgaki If you have a low number of connections enabled on your site, or only one database (not load balanced) then pconnect is going to cause hell.

the classical 4 parameters: $conn->PConnect('localhost','userid','password','database'); c. asked 7 years ago viewed 7130 times active 1 year ago Upcoming Events 2016 Community Moderator Election ends Nov 22 Related 64Cannot simply use PostgreSQL table name (“relation does not exist”)11How Contact Us - ZABBIX Homepage - Archive - Top php.net| support| documentation| report a bug| advanced search| search howto| statistics| random bug| login go to bug id or search bugs for Check This Out It can be due to insufficient resources, low max_connections value in your MySQL config, the HTTPd leaving open threads/child processes while it doesn't need to and so on, and so on

From the documentation of PQsetnonblocking: (PQ_SETNONBLOCKING is just an alias defined for that function): Sets the nonblocking status of the connection. Does that help?Average of ratings: - Permalink | Show parent | Reply Usability: Learner's Full name showing in breadcrumbs despite setting Fullname = Firstnameto create a new student Skip NavigationNavigationHomeSite pagesTagsSearchCalendarCurrent narfbg commented Apr 23, 2012 I think I just found why you've had performance issues with pconnect set to TRUE (which, again - is supposed to help you in high-traffic sites). share|improve this answer answered Oct 13 '09 at 20:31 Bill Karwin 285k51397572 1 +1 - I assumed that he is doing it asynchronously on purpose, given the 'long-running script' remark,

The database link is removed anyway from the list of persistent connections, due to the "return -1;" directly afterwards. My point is that cause and effect of the error are disconnected. DEBUG - 2009-06-04 10:10:54 --> Router Class Initialized DEBUG - 2009-06-04 10:10:54 --> Output Class Initialized DEBUG - 2009-06-04 10:10:54 --> Input Class Initialized DEBUG - 2009-06-04 10:10:54 --> Global POST Any clue about something I can do about it?

levani commented Dec 26, 2011 Ok, lets thinks of this issue from a different point of view. Note that PQexec does not honor nonblocking mode; if it is called, it will act in blocking fashion anyway. Both these methods suffer from the same issue and are already too broken to be used in production environment, unless the connection is made to 'localhost'. Board index The team • Delete all board cookies • All times are UTC + 1 hour Powered by phpBB Forum Software © phpBB Group Time : 0.046s | 4 Queries

It is possible to define metric spaces from pure topological concepts without the need to define a distance function? That means the script that prints the error and/or handles the error in its custom error handler may have nothing to do with the broken database connection. You signed in with another tab or window.

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