wildflyデータソースでアイドルタイムアウト後にデータベース接続が閉じられない

Question

Wildfly 8.1で実行されているアプリケーションがあります。アプリケーションで使用されるデータベース接続は、standalone.xmlファイルで定義されたデータソースから取得されます。

問題：理由はわかりませんが、プールからの接続がアイドル状態になることはなく、解放されます。最終的にプールがいっぱいになると、すべてのアクティブな接続とアプリケーションがjavax.resource.ResourceException: IJ000453: Unable to get managed connection for Java:/bo/datasourceのスローを開始します

同時に、データベースを見ると、ほとんどの接続がアイドル状態であることが示されています。（以下の構成と結果の出力）

私はこれに1週間参加しましたが、この問題の根本原因を特定できませんでした。また、接続が確立されているすべての場所をチェックし、後でそれらが閉じられていることを確認しました。

私が調べなければならない他の可能な場所は何ですか？それとも、これはバグ（またはWildflyデータソースの既知の問題）ですか？

Wildflyデータソース定義：

 <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データソースプール情報：

コマンド：

/subsystem=datasources/data-source=DBSource/statistics=pool:read-resource(recursive=false,proxies=false,include-runtime=true,include-defaults=true)

応答：

{ "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クエリステータス：

コマンド：

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;

応答：

 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 | 06:11:37.432426 | | COMMIT BOIEDUDBV13R1 | 4378 | blueoptima | f | idle | 06:11:35.00451 | 06:11:34.946687 | 06:11:37.293523 | | COMMIT BOIEDUDBV13R1 | 4354 | blueoptima | f | idle | 06:12:01.816625 | 06:12:01.812458 | 06:25:50.247498 | | COMMIT BOIEDUDBV13R1 | 4344 | blueoptima | f | idle | 06:21:56.439509 | 06:21:56.438739 | 06:31:30.8968 | | COMMIT BOIEDUDBV13R1 | 4350 | blueoptima | f | idle | 06:22:20.125071 | 06:22:20.11839 | 06:29:37.465565 | | COMMIT BOIEDUDBV13R1 | 4343 | blueoptima | f | idle | 06:25:59.198819 | 06:25:59.197962 | 06:31:30.901491 | | COMMIT BOIEDUDBV13R1 | 4351 | blueoptima | f | idle | 06:27:23.950853 | 06:27:23.950081 | 06:29:37.456841 | | COMMIT BOIEDUDBV13R1 | 4348 | blueoptima | f | idle | 06:27:36.13192 | 06:27:36.131014 | 06:29:37.513979 | | COMMIT BOIEDUDBV13R1 | 4349 | blueoptima | f | idle | 06:27:42.332901 | 06:27:42.331326 | 06:29:37.491039 | | COMMIT BOIEDUDBV13R1 | 4352 | blueoptima | f | idle | 06:27:54.031819 | 06:27:54.02966 | 06:29:37.265193 | | COMMIT BOIEDUDBV13R1 | 4341 | blueoptima | f | idle | 06:28:14.444963 | 06:28:14.444105 | 06:31:31.858728 | | COMMIT BOIEDUDBV13R1 | 4337 | blueoptima | f | idle | 06:29:20.216685 | 06:29:20.215749 | 06:33:13.450564 | | COMMIT BOIEDUDBV13R1 | 4346 | blueoptima | f | idle | 06:29:28.524638 | 06:29:28.523906 | 06:30:51.904609 | | COMMIT BOIEDUDBV13R1 | 4342 | blueoptima | f | idle | 06:29:58.433751 | 06:29:58.432939 | 06:31:31.204896 | | COMMIT BOIEDUDBV13R1 | 4345 | blueoptima | f | idle | 06:30:28.819691 | 06:30:28.818747 | 06:31:26.849458 | | COMMIT BOIEDUDBV13R1 | 4355 | blueoptima | f | idle | 06:07:48.953452 | 06:07:48.947655 | 06:25:50.216644 | | INSERT BOIEDUDBV13R1 | 4409 | blueoptima | f | idle | 05:49:25.452863 | 05:49:25.435483 | 05:49:49.502884 | | INSERT-1 BOIEDUDBV13R1 | 4424 | blueoptima | f | idle | 05:35:44.413808 | 05:35:44.381036 | 05:41:51.814529 | | INSERT-2 BOIEDUDBV13R1 | 4398 | blueoptima | f | idle | 05:36:00.621836 | 05:36:00.598047 | 06:04:53.758915 | | INSERT-3 BOIEDUDBV13R1 | 4417 | blueoptima | f | idle | 05:46:18.096148 | 05:46:18.07272 | 05:47:36.576677 | | INSERT-4 BOIEDUDBV13R1 | 4395 | blueoptima | f | idle | 05:50:44.112353 | 05:50:44.074542 | 06:05:10.557776 | | INSERT-5 BOIEDUDBV13R1 | 4388 | blueoptima | f | idle | 06:05:57.843694 | 06:05:57.832724 | 06:06:06.177483 | | INSERT-6 BOIEDUDBV13R1 | 4339 | blueoptima | f | idle | 06:17:57.460712 | 06:17:57.459716 | 06:33:12.657432 | | INSERT-7 BOIEDUDBV13R1 | 4487 | blueoptima | f | idle | 00:00:15.552081 | 00:00:15.552035 | 05:15:49.047066 | | select 1 BOIEDUDBV13R1 | 4565 | blueoptima | f | idle | 00:00:15.553093 | 00:00:15.553037 | 04:25:11.942656 | | select 1 BOIEDUDBV13R1 | 4420 | blueoptima | f | idle | 00:00:15.554958 | 00:00:15.55493 | 05:41:51.814789 | | select 1 BOIEDUDBV13R1 | 4402 | blueoptima | f | idle | 02:16:15.871078 | 02:16:15.871048 | 06:00:52.663433 | | select 1 BOIEDUDBV13R1 | 4384 | blueoptima | f | idle | 05:38:17.430042 | 05:38:17.43002 | 06:09:42.969186 | | select 1 BOIEDUDBV13R1 | 4412 | blueoptima | f | idle | 05:46:47.263716 | 05:46:47.263518 | 05:49:45.575215 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4414 | blueoptima | f | idle | 05:49:41.773012 | 05:49:41.772712 | 05:49:45.435716 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4405 | blueoptima | f | idle | 05:51:32.2168 | 05:51:32.216636 | 06:00:50.160309 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4400 | blueoptima | f | idle | 05:52:44.966233 | 05:52:44.965626 | 06:02:28.601245 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4401 | blueoptima | f | idle | 06:01:07.430069 | 06:01:07.429643 | 06:02:28.599077 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4389 | blueoptima | f | idle | 06:05:52.187161 | 06:05:52.187081 | 06:06:05.801733 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4376 | blueoptima | f | idle | 06:06:04.447668 | 06:06:04.447527 | 06:11:37.448819 | | SELECT DISTINCT column FROM table BOIEDUDBV13R1 | 4422 | blueoptima | f | idle | 04:48:59.446162 | 04:48:59.446103 | 05:41:51.814892 | | SELECT BOIEDUDBV13R1 | 4385 | blueoptima | f | idle | 05:28:13.718473 | 05:28:13.643871 | 06:09:42.799857 | | SELECT BOIEDUDBV13R1 | 4536 | blueoptima | f | idle | 04:29:42.4528 | 04:29:42.429103 | 04:34:01.664679 | | SELECT BOIEDUDBV13R1 | 4381 | blueoptima | f | idle | 06:05:51.131506 | 06:05:51.131429 | 06:11:35.758195 | | SELECT BOIEDUDBV13R1 | 4338 | blueoptima | f | idle | 06:28:31.658157 | 06:28:31.658105 | 06:33:12.953437 | | SELECT BOIEDUDBV13R1 | 4566 | blueoptima | f | idle | 00:00:25.8479 | 00:00:25.835864 | 04:25:11.94033 | | UPDATE-1 BOIEDUDBV13R1 | 4391 | blueoptima | f | idle | 03:52:25.755736 | 03:52:25.73571 | 06:06:05.300207 | | UPDATE-2 BOIEDUDBV13R1 | 4512 | blueoptima | f | idle | 04:56:03.247543 | 04:56:03.232923 | 04:56:44.188961 | | UPDATE-3 BOIEDUDBV13R1 | 4511 | blueoptima | f | idle | 04:56:34.70146 | 04:56:34.691303 | 04:57:00.191291 | | UPDATE-4 BOIEDUDBV13R1 | 4347 | blueoptima | f | idle | 05:32:30.754975 | 05:32:30.732481 | 06:29:46.312612 | | UPDATE-5 BOIEDUDBV13R1 | 4439 | blueoptima | f | idle | 05:32:55.742867 | 05:32:55.741539 | 05:34:41.519884 | | UPDATE-6 BOIEDUDBV13R1 | 4407 | blueoptima | f | idle | 05:37:36.461115 | 05:37:36.451762 | 05:54:49.133383 | | UPDATE-7 BOIEDUDBV13R1 | 4371 | blueoptima | f | idle | 05:53:02.986092 | 05:53:02.830753 | 06:11:55.240785 | | UPDATE-8 BOIEDUDBV13R1 | 4403 | blueoptima | f | idle | 05:59:57.870442 | 05:59:57.865218 | 06:00:52.646267 | | UPDATE-9 BOIEDUDBV13R1 | 4356 | blueoptima | f | idle | 06:09:18.560294 | 06:09:18.559498 | 06:25:50.216061 | | UPDATE-10 BOIEDUDBV13R1 | 4380 | blueoptima | f | idle | 06:09:38.951985 | 06:09:38.924395 | 06:11:36.494018 | | UPDATE-11 BOIEDUDBV13R1 | 4863 | postgres | f | idle | 01:21:12.135105 | 01:21:12.052383 | 02:01:39.736693 | | select a | | | | | | | | | ; BOIEDUDBV13R1 | 4988 | postgres | f | idle | 00:11:16.272964 | 00:11:16.145621 | 00:13:26.234094 | | select b | | | | | | | | | BOIEDUDBV13R1 | 4437 | blueoptima | f | idle in transaction | 05:29:11.490837 | 05:29:11.490825 | 05:34:41.52984 | 05:29:11.490949 | select 1 BOIEDUDBV13R1 | 4413 | blueoptima | f | idle in transaction | 05:36:47.417173 | 05:36:47.417148 | 05:49:45.5742 | 05:36:47.417257 | select 1 BOIEDUDBV13R1 | 4567 | blueoptima | f | idle in transaction | 00:49:38.844059 | 00:49:38.844027 | 04:25:11.936358 | 00:49:40.950629 | Query (100 rows)

Salman A. Kagzi · Accepted Answer

Hibernateは接続を保持していて、プールに解放していなかったことが判明しました。スレッドローカルコンテキストを使用しているという事実に関係なく。しかし、休止状態の設定に<property name="hibernate.connection.release_mode">after_transaction</property>を追加した後。問題は解決しました。

PS：これを明示的に定義する必要がある理由と、セッションが閉じられるとautorelease_modeが接続を解放しない理由がまだわかりません。