Error Canceling Query Due To User Request
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Postgres Canceling Statement Due To User Request
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Postgresql Canceling Statement Due To User Request
a minute: Sign up postgresql error: canceling statement due to user request up vote 7 down vote favorite 2 What causes this error in postgresql? org.postgresql.util.PSQLException: ERROR: canceling statement due to user request My Software Versions: PostgreSQL 9.1.6 on x86_64-redhat-linux-gnu, compiled by gcc (GCC) 4.7.2 20120921 (Red Hat 4.7.2-2), 64-bit". My postgresql driver is: postgresql-9.2-1000.jdbc4.jar Using java version: Java 1.7 Clue: My canceling statement due to user request postgresql database is on a solid state hard drive and this error happens randomly and sometimes not at all. java postgresql exception share|improve this question edited Nov 14 '12 at 15:14 asked Oct 28 '12 at 23:29 Eric Leschinski 46.3k23221190 Having same issues on PostgreSQL 9.2.1 (PostgreSQL 9.2.1 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-52), 64-bit), with same JDK and postgresql-9.2-1001.jdbc4.jar driver. Database is on spinning drive, statement cancellations are happening randomly, application doesn't cancel any SQL statements and statement timeout is set to 0 (indefinite). No reason / solution has been identified yet. –reta Jan 3 '13 at 14:40 add a comment| 4 Answers 4 active oldest votes up vote 6 down vote accepted We have figured out the the cause of this issue. It's explained by buggy implementation of setQueryTimeout() in latest JDBC drivers 9.2-100x. It might not happen if you open / close connection manually, but very often happens with connection pooling in place and autocommit set to false. In this case, setQueryTimeout() should be called with non-zero value (as an example, usi
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Canceling Statement Due To Statement Timeout Postgresql
User Groups Featured Users International Sites Propaganda Resources Weekly News canceling statement due to user request npgsql "cancelling statement due to user request error" occurs but the transaction has committed. From: caused by: org.postgresql.util.psqlexception: error: canceling statement due to user request Naoya Anzai
2 causes:- hit CTRL-C in the psql client;- have a non-zero statement timeout and have the statement actuallytime out;But I am seeing this via http://grokbase.com/t/postgresql/pgsql-general/06aqvsvpxc/what-is-causing-canceling-statement-due-to-user-request JDBC which can't cancel a statement AFAIK, andthe statement_timeout is set http://board.issociate.de/thread/252791/ERROR-canceling-query-due-to-user-request.html to 0 (in the config file globally, andthere's no override for the users, nor in our JDBC code).I wonder if there is any other scenario which can trigger this error ? Ifound a lot of them in our logs, last night we had hundreds of them, butnow due to that I looked it happened sporadically in the past too...Could some network problem trigger this ?TIA,Csaba. reply Tweet Search Discussions Search All Groups PostgreSQL pgsql-general 4 responses Oldest Nested Tom Lane Anything sending SIGINT to a backend process would result in this behavior. We've heard rumors that there are platforms wherein SIGINT is used for strange purposes like enforcing due to user process-runtime limits. regards, tom lane Tom Lane at Oct 24, 2006 at 2:49 pm ⇧ Csaba Nagy writes:I wonder if there is any other scenario which can trigger this error ?Anything sending SIGINT to a backend process would result in thisbehavior. We've heard rumors that there are platforms wherein SIGINTis used for strange purposes like enforcing process-runtime limits.regards, tom lane reply | permalink Thomas Kellerer JDBC *can* cancel a running statement. You just need to call cancel() from another thread. http://java.sun.com/j2se/1.5.0/docs/api/java/sql/Statement.html#cancel() Works great in my SQL front end. Thomas Thomas Kellerer at Oct 24, 2006 at 2:51 pm ⇧ On 23.10.2006 16:14 Csaba Nagy wrote:Hi all,I know of 2 causes:- hit CTRL-C in the psql client;- have a non-zero statement timeout and have the statement actuallytime out;But I am seeing this via JDBC which can't cancel a statement AFAIKJDBC *can* cancel a running statement. You just need to call cancel()from another thread.http://java.sun.com/j2se/1.5.0/docs/api/java/sql/Statement.html#cancel()Works great in my SQL front end.Thomas reply | permalink Csaba Nagy Are you sure ? Ever tried to cancel a long running state
permise, 550 Access denied (sender blacklisted) (in reply to RCPT TO command), Error opening site metabase key: 0x80070003, shel.fa.xxx Links XODOX Impressum #1: ERROR: canceling query due to user request Posted on 2005-09-12 22:54:43 by Kevin Grittner I started with this issue on the pgsql-jdbc list, but was assured that this= could not be a bug in the JDBC driver -- it is either a bug in the configu= ration or runtime environment or it is a server-side bug. This list seemed= like the logical next step. =20 We have seen this behavior in 8.0.3 with the 311 JDBC driver. Today I test= ed with the latest snapshot of the 8.1 development code and the tip of the = JDBC driver code from the root. It still happens. =20 The environment for the latest test is: SuSE Linux 9.3 (i586) 2.6.11.4-21.8-smp #1 SMP Tue Jul 19 12:42:37 UTC 2005 Dual Xeon Disk on 7 spindle RAID 5 via SAN All access through JDBC connections. A single thread accessing the database. A connection pool in use -- the thread may grab a different connection each= time. No other process concurrently executing against the database. Happens with or without autovacuum running. =20 Failures have also occured on Windows 2000 and Windows XP servers with loca= l hard drives. Xeons in all cases. =20 The software involved "optimistically" tries to do a series of inserts, upd= ates, and/or deletes in a single database transaction. If an exception occ= urs (for example an insert of a row which already exists) or an update affe= cts zero rows, the transaction is rolled back and the operations are attemp= ted in "cautious" mode -- a commit after each insert update or delete of a = single row. =20 The client is running full out, with a steady supply of ready-to-go request= s. Client CPU seems to be the bottleneck, rather than anything on the data= base server hardware. We are only seeing this problem in "cautious" mode -= - a database transaction has been rolled back and we're committing each sta= tement as we go. =20 If we run the same set of data multiple times, the error occurs on differen= t requests each time, indicating it is not data dependent. If we turn on l= ogging at the JDBC driver level, it never happens, indicating that it is ti= ming sensitive. We've never seen it while stepping through the debugger, b= ut since it seems to happen randomly once every few thousand requests, that= would be a unlikely anyway. =20 The error is manifest by this message and stack trace: =20 org.postgres