I am running with 16GB of heap: -Xms16G -Xmx16G -XX:-HeapDumpOnOutOfMemoryErrorĪnd the overall load on the system is quite low. : Java heap spaceĪt (Arrays.java:3537) ~Īt (AbstractStringBuilder.java:228) ~Īt (AbstractStringBuilder.java:582) ~Īt (StringBuilder.java:179) ~Īt .ListManager$2.exec(ListManager.java:844) ~Īt .ListManager$2.exec(ListManager.java:840) ~Īt .TableSelector.lambda$forEachResults$1(TableSelector.java:278) ~Īt .TableSelector$$Lambda$1265/0x00007fc3d0e3c130.handle(Unknown Source) ~Īt .SqlExecutingSelector$ExecutingResultSetFactory.handleResultSet(SqlExecutingSelector.java:457) ~Īt .TableSelector.forEachResults(TableSelector.java:273) ~Īt .ListManager.inde圎ntireList(ListManager.java:839) ~Īt .ListManager.lambda$deleteItemIndex$6(ListManager.java:592) ~Īt .ListManager$$Lambda$1837/n(Unknown Source) ~Īt .DbScope$n(DbScope.java:2010) ~Īt .DbScope$mit(DbScope.java:2327) ~Īt .Quer圜ontroller$BaseSaveRowsAction.executeJson(Quer圜ontroller.java:4473) ~Īt .Quer圜ontroller$DeleteRowsAction.execute(Quer圜ontroller.java:4622) ~Īt .Quer圜ontroller$DeleteRowsAction.execute(Quer圜ontroller.java:4614) ~Īt .BaseApiAction.handlePost(BaseApiAction.java:238) ~Īt .BaseApiAction.handleRequest(BaseApiAction.java:128) ~Īt .BaseViewAction.handleRequest(BaseViewAction.java:195) ~Īt .SpringActionController.handleRequest(SpringActionController.java:512) ~Īt .DefaultModule.dispatch(DefaultModule.java:1128) ~Īt .ViewServlet._service(ViewServlet.java:240) ~Īt .rvice(ViewServlet.java:159) ~Īt .service(HttpServlet.java:623) ~Īt .ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:209) ~Īt .ApplicationFilterChain.doFilter(ApplicationFilterChain.java:153) ~Īt .(WsFilter.java:51) ~Īt .ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:178) ~Īt .TransactionFilter.doFilter(TransactionFilter.java:43) ~

ERROR ExceptionUtil T01:52:59,521 http-nio-8080-exec-2 : Unhandled exception: Java heap space Last week I upgraded from LabKey v23.3.2 to v23.7.0 and immediately started getting out of memory errors when performing the row deletions. This workflow has been running fine for a while. The deletions are batched to 900 rows per API call. The queries are simple but can return a large number of rows. I have a cronjob that makes queries and then performs row deletions on lists using the LabKey API (via the python package).

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