I have an application running under wildfly 8.1 The database connections used in the applications are taken from a Datasource defined in standalone.xml file.
Problem: I don't know why but the Connection from the Pool never goes Idle and are released. Eventually the Pool gets filled will all active Connection and application starts throwing javax.resource.ResourceException: IJ000453: Unable to get managed connection for java:/bo/datasource
At the same time when I look at the database, most of the Connections are shown to be idle. (Configuration and result output below)
I have been at this for a week now and have not been able to figure out root cause of this problem. I have also checked all places where a connection is created and have made sure that they are closed afterwards.
What are the other possible places I should be looking into? Or is this a bug (or known issues with Wildfly datasource)?
Wildfly datasource definition:
<subsystem xmlns="urn:jboss:domain:datasources:2.0">
<datasources>
<datasource jndi-name="java:/db/pool" pool-name="DBSource" enabled="true">
<connection-url>jdbc:postgresql://<IP>:5432/DB</connection-url>
<driver>postgres</driver>
<new-connection-sql>select 1</new-connection-sql>
<pool>
<min-pool-size>5</min-pool-size>
<max-pool-size>100</max-pool-size>
</pool>
<security>
<user-name>user</user-name>
<password>password</password>
</security>
<validation>
<check-valid-connection-sql>select 1</check-valid-connection-sql>
<background-validation>true</background-validation>
<background-validation-millis>60000</background-validation-millis>
</validation>
<timeout>
<idle-timeout-minutes>30</idle-timeout-minutes>
</timeout>
<statement>
<track-statements>true</track-statements>
</statement>
</datasource>
<drivers>
<driver name="h2" module="com.h2database.h2">
<xa-datasource-class>org.h2.jdbcx.JdbcDataSource</xa-datasource-class>
</driver>
<driver name="postgres" module="org.postgres">
<driver-class>org.postgresql.Driver</driver-class>
</driver>
</drivers>
</datasources>
</subsystem>
Wildfly datasource pool information:
Command:
/subsystem=datasources/data-source=DBSource/statistics=pool:read-resource(recursive=false,proxies=false,include-runtime=true,include-defaults=true)
Response:
{
"outcome" => "success",
"result" => {
"ActiveCount" => "98",
"AvailableCount" => "55",
"AverageBlockingTime" => "1",
"AverageCreationTime" => "125",
"AverageGetTime" => "27",
"BlockingFailureCount" => "0",
"CreatedCount" => "98",
"DestroyedCount" => "0",
"IdleCount" => "3",
"InUseCount" => "95",
"MaxCreationTime" => "1382",
"MaxGetTime" => "1382",
"MaxUsedCount" => "97",
"MaxWaitCount" => "0",
"MaxWaitTime" => "1",
"TimedOut" => "0",
"TotalBlockingTime" => "71",
"TotalCreationTime" => "12340",
"TotalGetTime" => "12696",
"WaitCount" => "0"
},
"response-headers" => {"process-state" => "reload-required"}
}
PostgreSQL Query Status:
Command:
SELECT datname, pid, usename, waiting, state, (now()-query_start) AS since, (now() - state_change) AS since2, (now() - backend_start) as since3, (now() - xact_start) as since4, query FROM pg_stat_activity ORDER BY datname, state, usename, waiting, query, since, pid;
Response:
datname | pid | usename | waiting | state | since | since2 | since3 | since4 |
---------------+------+------------+---------+---------------------+-----------------+------------------+-----------------+-----------------+-----------------------------------------------------------------------------------------------------------------------------------
BOIEDUDBV13R1 | 4871 | blueoptima | f | active | 00:00:00.176188 | 00:00:00.176179 | 01:37:21.045722 | 00:02:17.212346 | Query-1
BOIEDUDBV13R1 | 4568 | blueoptima | f | active | 00:18:33.035399 | 00:18:33.035395 | 04:25:11.916388 | 00:18:33.473355 | Query-2
BOIEDUDBV13R1 | 4564 | blueoptima | f | active | 00:10:10.599237 | 00:10:10.599232 | 04:25:11.943752 | 00:10:10.915048 | Query-3
BOIEDUDBV13R1 | 4498 | blueoptima | f | active | 00:03:25.861284 | 00:03:25.86128 | 05:09:51.735583 | 00:03:25.861823 | Query-4
BOIEDUDBV13R1 | 4535 | blueoptima | f | active | 00:01:16.612227 | 00:01:16.612222 | 04:34:01.668772 | 00:01:16.614149 | Query-5
BOIEDUDBV13R1 | 4534 | blueoptima | f | idle | 00:00:04.72429 | 00:00:04.683504 | 04:35:21.78966 | | COMMIT
BOIEDUDBV13R1 | 4519 | blueoptima | f | idle | 00:00:12.950041 | 00:00:12.913566 | 04:50:53.698877 | | COMMIT
BOIEDUDBV13R1 | 4438 | blueoptima | f | idle | 00:00:25.82585 | 00:00:25.81036 | 05:34:41.528853 | | COMMIT
BOIEDUDBV13R1 | 4425 | blueoptima | f | idle | 00:09:12.999537 | 00:09:12.9731 | 05:41:51.806148 | | COMMIT
BOIEDUDBV13R1 | 4488 | blueoptima | f | idle | 00:56:04.709316 | 00:56:04.686439 | 05:14:45.445165 | | COMMIT
BOIEDUDBV13R1 | 4501 | blueoptima | f | idle | 00:57:00.615919 | 00:57:00.61589 | 05:06:51.861328 | | COMMIT
BOIEDUDBV13R1 | 4466 | blueoptima | f | idle | 04:11:54.8669 | 04:11:54.516947 | 05:25:03.079741 | | COMMIT
BOIEDUDBV13R1 | 4419 | blueoptima | f | idle | 04:51:03.786294 | 04:51:03.749462 | 05:41:51.814577 | | COMMIT
BOIEDUDBV13R1 | 4340 | blueoptima | f | idle | 04:52:19.772533 | 04:52:19.720537 | 06:31:51.758733 | | COMMIT
BOIEDUDBV13R1 | 4502 | blueoptima | f | idle | 04:54:49.892553 | 04:54:49.85151 | 05:06:51.439101 | | COMMIT
BOIEDUDBV13R1 | 4406 | blueoptima | f | idle | 05:09:20.675009 | 05:09:20.655038 | 06:00:50.160594 | | COMMIT
BOIEDUDBV13R1 | 4489 | blueoptima | f | idle | 05:09:54.785706 | 05:09:54.751723 | 05:14:45.358108 | | COMMIT
BOIEDUDBV13R1 | 4449 | blueoptima | f | idle | 05:16:58.881682 | 05:16:58.88074 | 05:26:50.728973 | | COMMIT
BOIEDUDBV13R1 | 4450 | blueoptima | f | idle | 05:17:23.727614 | 05:17:23.726158 | 05:25:55.116657 | | COMMIT
BOIEDUDBV13R1 | 4465 | blueoptima | f | idle | 05:22:32.475769 | 05:22:32.470301 | 05:25:03.230671 | | COMMIT
BOIEDUDBV13R1 | 4421 | blueoptima | f | idle | 05:25:03.596961 | 05:25:03.596942 | 05:41:51.81487 | | COMMIT
BOIEDUDBV13R1 | 4451 | blueoptima | f | idle | 05:25:29.373092 | 05:25:29.364467 | 05:25:52.433709 | | COMMIT
BOIEDUDBV13R1 | 4448 | blueoptima | f | idle | 05:25:58.729039 | 05:25:58.724453 | 05:26:50.898318 | | COMMIT
BOIEDUDBV13R1 | 4423 | blueoptima | f | idle | 05:26:13.2656 | 05:26:13.263502 | 05:41:51.814528 | | COMMIT
BOIEDUDBV13R1 | 4426 | blueoptima | f | idle | 05:26:58.773981 | 05:26:58.765174 | 05:41:51.179333 | | COMMIT
BOIEDUDBV13R1 | 4415 | blueoptima | f | idle | 05:29:07.123798 | 05:29:07.115682 | 05:47:36.740939 | | COMMIT
BOIEDUDBV13R1 | 4394 | blueoptima | f | idle | 05:42:02.02632 | 05:42:01.994772 | 06:05:54.290575 | | COMMIT
BOIEDUDBV13R1 | 4416 | blueoptima | f | idle | 05:45:52.799303 | 05:45:52.793004 | 05:47:36.701474 | | COMMIT
BOIEDUDBV13R1 | 4408 | blueoptima | f | idle | 05:48:02.635413 | 05:48:02.630767 | 05:54:49.133404 | | COMMIT
BOIEDUDBV13R1 | 4410 | blueoptima | f | idle | 05:49:09.631417 | 05:49:09.624039 | 05:49:47.440347 | | COMMIT
BOIEDUDBV13R1 | 4392 | blueoptima | f | idle | 05:49:45.136111 | 05:49:45.124627 | 06:05:54.52666 | | COMMIT
BOIEDUDBV13R1 | 4411 | blueoptima | f | idle | 05:49:45.208436 | 05:49:45.207393 | 05:49:46.326729 | | COMMIT
BOIEDUDBV13R1 | 4399 | blueoptima | f | idle | 05:50:19.476105 | 05:50:19.465746 | 06:04:53.509647 | | COMMIT
BOIEDUDBV13R1 | 4383 | blueoptima | f | idle | 05:54:04.625364 | 05:54:04.56991 | 06:09:43.004602 | | COMMIT
BOIEDUDBV13R1 | 4382 | blueoptima | f | idle | 05:58:29.615594 | 05:58:29.608542 | 06:09:43.496538 | | COMMIT
BOIEDUDBV13R1 | 4404 | blueoptima | f | idle | 06:00:48.381014 | 06:00:48.379175 | 06:00:50.352202 | | COMMIT
BOIEDUDBV13R1 | 4393 | blueoptima | f | idle | 06:01:49.740445 | 06:01:49.733278 | 06:05:54.468595 | | COMMIT
BOIEDUDBV13R1 | 4379 | blueoptima | f | idle | 06:02:12.00668 | 06:02:12.004878 | 06:11:37.044413 | | COMMIT
BOIEDUDBV13R1 | 4396 | blueoptima | f | idle | 06:02:25.216415 | 06:02:25.202565 | 06:05:10.411017 | | COMMIT
BOIEDUDBV13R1 | 4390 | blueoptima | f | idle | 06:03:48.651868 | 06:03:48.647211 | 06:06:05.443 | | COMMIT
BOIEDUDBV13R1 | 4375 | blueoptima | f | idle | 06:04:51.760968 | 06:04:51.732155 | 06:11:37.545217 | | COMMIT
BOIEDUDBV13R1 | 4353 | blueoptima | f | idle | 06:04:53.302492 | 06:04:53.252345 | 06:25:54.61252 | | COMMIT
BOIEDUDBV13R1 | 4372 | blueoptima | f | idle | 06:05:08.158286 | 06:05:08.137553 | 06:11:49.797186 | | COMMIT
BOIEDUDBV13R1 | 4397 | blueoptima | f | idle | 06:05:08.578854 | 06:05:08.544941 | 06:05:10.298185 | | COMMIT
BOIEDUDBV13R1 | 4377 | blueoptima | f | idle | 06:08:34.443118 | 06:08:34.435299 
