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where your app knows to reconnect if it sees a null connection, and keeps a record of the transaction it just attempted so it can retry it in a loop until Owner brettwooldridge commented Nov 18, 2014 What version of the PostgreSQL JDBC driver? However, the cost of the AtomicBoolean and the extremely low likelihood of two threads calling close() on the same Connection at exactly the same instant lead me to forego it. If that thread later tries to close() the connection again, and encounters a 08003, then HikariCP (assuming the connection was one it handed out) tries to eject it from the pool. weblink

Then get details with: ex.getServerErrorMessage() which gives you a ServerErrorMessage with detailed fields. Next, open up the postgresql log at timestamp 16:38:28.124 Search upward in the log, filtering on process id [14540] Here is what I've been able to piece together: Here is my Owner brettwooldridge commented Nov 18, 2014 @cowwoc Couple of things... | How is this possible? The server is in the middle of closing its connection (ConnectionProxy.close() invokes ConnectionProxy.resetConnectionState() invokes AbstractJdbc2Connection.setTransactionIsolation()) while the client invokes HikariPool.shutdown(). navigate here

Postgres Sqlstate

Shut down web server On the server end, each request works like this: 1. If the connection is used after it was closed, won't all operations throw an exception complaining that the connection is closed? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed

Condition names can be written in either upper or lower case. (Note that PL/pgSQL does not recognize warning, as opposed to error, condition names; those are classes 00, 01, and 02.) Now we just need to figure out why the connection is being closed at 16:38:28.124. I went to bed early for once :) The good news is that I figured out a trick to make this issue 100% reproducible (in my sleep no less). Postgres Exception When Others Where can I get the int error codes for postgresql?` postgresql jdbc share|improve this question edited Mar 15 '12 at 7:50 a_horse_with_no_name 187k24236312 asked Mar 15 '12 at 7:35 Ashwin 2,8971758118

Now, the "client" side... Postgresql Exception Handling Can a nuclear detonation on Moon destroy life on Earth? java.lang.RuntimeException: org.postgresql.util.PSQLException: This connection has been closed. http://stackoverflow.com/questions/9715578/postgresql-error-codes-are-not-returned-in-int java.lang.RuntimeException: org.postgresql.util.PSQLException: This connection has been closed.

Nothing further is needed. It seems fair that there is a presumption of knowledge of the standard. -- Lew -- Sent via pgsql-jdbc mailing list ([hidden email]) To make changes Npgsqlexception Further, adding volatile to closed did not help Now, here is the log for your review (apologies in advance for the length but I want to make sure you get the Peter ---------------------------(end of broadcast)--------------------------- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not I've got something interesting to report but the log file in question is 10MB.

Postgresql Exception Handling

Exactly, who's going to maintain this list of alternate error code versions?  If the main project was to put this version of the error codes in the master table of error http://stackoverflow.com/questions/26383624/postgres-exceptions-and-java First, we never reasonably expect shutdown() to be called by two threads at the same time. Postgres Sqlstate printStackTrace(PrintWriter w) Prints this throwable and it's backtrace to the print writer you specify. Postgresql Exception Handling Example Open up the client log at timestamp 16:38:28.121 Notice that the client reports resetConnectionState() invoked for backend PID: 14540. 9ms later, the client fails with SQLSTATE(08006).

Applications that need to know which error condition has occurred should usually test the error code, rather than looking at the textual error message. have a peek at these guys Both client and postgresql logs contain "backend process id". Data source is cached. private static DriverManagerDataSource getDataSource() { DriverManagerDataSource dataSource = new DriverManagerDataSource(); dataSource.setDriverClassName("org.postgresql.Driver"); dataSource.setUsername("postgres"); dataSource.setPassword("postgres"); dataSource.setUrl("jdbc:postgresql://localhost:5432/library"); return dataSource; } But i got an errror: 10:00:30,918 DEBUG SQLErrorCodesFactory:220 - Database product name cached for Postgresql Error Codes

Now, I've got more logging information for you but I'm not sure how to interpret it. Using the connection in a multithreaded environment would eventually lead to the illegal state exception and (hopefully) pinpoint the issue in the application layer. In postgresql's log it is found immediately after the timestamp at the beginning of the file. check over here Creating statement...

Table A-1. Postgres 23505 SQLException Methods An SQLException can occur both in the driver and the database. I've published a 2.2.6-SNAPSHOT to the sonatype snapshot repository, if you want to try it.

On Sat, 1 May 2010, Maxime L?vesque wrote: >  The method  SQLException.getErrorCode of the jdbc driver systematically > returns 0, > >  http://www.postgresql.org/docs/8.4/interactive/errcodes-appendix.htmlAs I said earlier you need to check SQLException.getSQLState,

Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 302 Star 3,519 Fork 510 brettwooldridge/HikariCP Code Issues 23 Pull requests 2 Projects I assume the 2 hour interval gets reset at the beginning of each test suite so a timeout never occurs. Shouldn't it be > getErrorCode()? Postgres Raise Exception If you search the entire log from top to bottom you will notice that no one else accesses this proxy before or after this point.

The goal is to completely empty the bag to avoid memory leaks, and to ensure that we at least attempted to close() or abort() connections. It can't return a SQLSTATE because it returns an int and SQLSTATE is alphanumeric. Either Google tied it up or dropped it, or your smtp server or intervening MTA dropped it. this content Note that some, but not all, of the error codes produced by PostgreSQL are defined by the SQL standard; some additional error codes for conditions not defined by the standard have

If there is value in the logs, I'll do it. Every time I attempt to try to increase its frequency (going back to HikariCP 2.2.5, increasing test iterations, etc) it's had no effect or the opposite effect I'm aiming for (the The error codes are less likely to change across PostgreSQL releases, and also are not subject to change due to localization of error messages. While doing so is tricky to get right, it provides the tremendous speed advantage that HikariCP has.

I updated BagEntry.toString() and PoolBagEntry.toString() to print out the state. (I recommend you add this change to the official codebase to help debugging future problems) In any case, when this bug The return value of isValid() is meaningless. As you can see the error conditions listed in the appendix are not all numeric so they cannot be returned via getErrorCode. Thanks.

Free forum by Nabble Edit this page PostgreSQL › PostgreSQL - jdbc Search everywhere only in this topic Advanced Search SQLException and error code ‹ Previous Topic Next Topic › The only significant change is making the isClosed member volatile. cowwoc commented Nov 19, 2014 This bug is very very frustrating. I would like to detect things like 'table does not exist' , constraint does not exist, etc..

You are using volatile variables where they are inappropriate (e.g. Error using ConTeXt subsub module, TexLive, FreeBSD Why is AT&T's stock price declining, during the days that they announced the acquisition of Time Warner inc.? For example, error 28001 means expired password, 28000 is blocked account, 1017 is wrong user/passsword, etc. What's the difference between these two sentences?

ID: 100, Age: 18, First: Zara, Last: Ali ID: 101, Age: 25, First: Mahnaz, Last: Fatma ID: 102, Age: 30, First: Zaid, Last: Khan ID: 103, Age: 28, First: Sumit, Last: cowwoc commented Nov 18, 2014 @brettwooldridge I am in favor of explicitly documenting that Connections returned by this pool are not thread-safe and letting users pick up the mess if they Without ConnectionProxy I can't access the underlying Connection (stored in the delegate field). Umm, the SQLException documentation is quite clear the 'getErrorCode()' returns only vendor-specific codes and that 'getSQLState()' returns the SQL state value.

My theory (though I have no proof) is that the HikariPool.shutdown() is invoked immediately before ConnectionProxy.close().