java.lang.OutOfMemoryError: unable to create new native thread解決方法
阿新 • • 發佈:2019-01-26
我們使用Mysql,偶爾會出現OutOfMemoryError,這時候jvm堆中還有很多記憶體,下面是出錯的堆疊資訊:
java.lang.OutOfMemoryError: unable to create newnative thread
at java.lang.Thread.start0(NativeMethod)
at java.lang.Thread.start(Thread.java:597)
at com.microsoft.sqlserver.jdbc.TimeoutTimer.start(UnknownSource)
at com.microsoft .sqlserver.jdbc.TDSCommand.startResponse(UnknownSource)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement.doExecutePreparedStatement(UnknownSource)
at com.microsoft.sqlserver.jdbc.SQLServerPreparedStatement$PrepStmtExecCmd.doExecute(UnknownSource)
at com.microsoft.sqlserver.jdbc .TDSCommand.execute(UnknownSource)
at com.microsoft.sqlserver.jdbc.SQLServerConnection.executeCommand(UnknownSource)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeCommand(UnknownSource)
at com.microsoft.sqlserver.jdbc.SQLServerStatement.executeStatement(UnknownSource)
at com .microsoft.sqlserver.jdbc.SQLServerPreparedStatement.executeQuery(UnknownSource)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewProxyPreparedStatement.java:76)
at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)
at org.hibernate.loader.Loader.getResultSet(Loader.java:1808)
at org.hibernate.loader.Loader.doQuery(Loader.java:697)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2228)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125)
at org.hibernate.loader.Loader.list(Loader.java:2120)
at org.hibernate.loader.criteria.CriteriaLoader.list(CriteriaLoader.java:118)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1596)
at org.hibernate.impl.CriteriaImpl.list(CriteriaImpl.java:306)
解決方案:
sqljdbc在setQueryTimeout時會導致executeQuery開啟一個新的執行緒。這會導致產生大量的執行緒。這些執行緒需要的堆疊空間都不會太大,這種情況下你可以修改jvm引數降低每個執行緒的堆疊記憶體,來避免這個問題。
例如在虛擬機器引數中新增:-Xss128k
來將堆疊記憶體設定為128K(預設是1M)。