About timeout

manual

Setting and Tuning of JPA Queries

Explains various JPA query settings - result range, flush and lock.... query hints: "javax.persistence.query.timeout" - sets maximum query execution time in milliseconds. A  ... See JavaDoc Reference Page...  is thrown if timeout is exceeded. "javax.persistence.lock.timeout" - sets ...

 
manual

Locking in JPA

Explains how to use optimistic locking and pessimistic locking in JPA.... (on the second lock request). Pessimistic Lock Timeout By default, when a pessimistic lock conflict occurs a ... is thrown immediately. The "javax.persistence.lock.timeout"  hint can be set to allow waiting for a pessimistic lock for a ...

 
forum_thread

Pessimistic Lock Timeouts setting

Hi,   I realise that JPA2 doesn't necessarily define a standard API way for Lock Timeouts. However, there is a standardised query 'hint' that can be setup to make the underlying DB lock a record for a specific time. The hint property is: "javax.persistence.lock.timeout" ... time. The hint property is: "javax.persistence.lock.timeout" I have a situation where multiple threads can hit a shared ... Support of pessimistic lock timeout setting ( javax.persistence.lock.timeout ) was just added in ...

 
issue

Pessimistic lock timeout - blocks indefinitely

I've attached a simple test which creates an object then kicks off several threads which each try to update the object. I'm using a pessimistic lock with timeout as follows: ... update the object. I'm using a pessimistic lock with timeout as follows: Map<String,Object> properties = new ... ; properties. put ( "javax.persistence.lock.timeout" , 5000 ) ;   MyEntity loaded = em. find ...

 
forum_thread

Set timeout for BatchQueryItr

Hello Support, For an unknow reason, some of my object query never finish ( deadlock maybe ).  My tomcat temp directory is full of "BatchQueryItr" files. I can't found the origin of the issue but i wonder if it's possible to put a timeout for too long query. Regards, Xirt ... of the issue but i wonder if it's possible to put a timeout for too long query. Regards, Xirt ... You can set a query execution timeout as a query hint . The many BatchQueryItr files may ...

 
forum_thread

Server connection management

The server does not appear to release broken connections. My typical development pattern is to keep reloading my war file in tomcat until the permgen space runs out, and then I kill and restart tomcat. After a few days of this, the server stops responding, and I see the following in the server logs: ... after it becomes accessible again. Inactivity Timeout You can set the inactivity timeout  in seconds and it affects both the client and the server side: ...

 
forum_thread

Log is almost empty (log level 'trace')

Hi, Using 2.4.6_01 version on Linux (2.6.18, VPS)..  Just wondering what should I suppose to see in a log file with a log level 'trace'/'debug'.. Trying to fix an issue that server version sometimes accidentally quits without any notice.. My log file (independently on whats specified in config file) has only database open/close messages, some query.compiler info but nothing more..  Is that right behaviour? Are there are server statistics API/logs available? Regards, ... etc. In that case setting a non zero inactivity timeout (e.g. 600 seconds) may solve the problem. ... any relation. I'll try to play with inactivity timeout and let you know results. Yuri ...

 
release

2.2.4

... #11 ). Added support of pessimistic lock timeout ( javax.persistence.lock.timeout ). Added implementation of the getParameters ...

 
release

2.2.5

... #11 ). Added support of pessimistic lock timeout ( javax.persistence.lock.timeout ). Added implementation of the getParameters ...

 
forum_thread

Session lost

hi team we are implementing a web application based on the Liferay, system database is handled by JPA 2.0 and entity manager. when system is idle for a long period (for example 8 hours) the Session in the Persistance Context will be lost and the DB will be out of the access, is there any possible configuration which can fix this problem.......... best ... restriction. If it is, specifying inactivity timeout in ObjectDB configuration may solve the problem. ...