Hi, When analyzing a performance issue using Java Flight Recorder, I noticed that the server is running Deployment Synchronizer task most of the time.
Please see the stack trace below. Stack Trace Sample Count Percentage(%) java.util.Stack.peek() 20 1.661 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getCurrentState() 20 1.661 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getCursor() 19 1.578 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.hasMoved() 11 0.914 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.eof() 10 0.831 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getRecord() 8 0.664 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getValueMem(int) 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeDataTable.getValueMem(int) 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getValueUncached(int) 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getValue(int) 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeDataTable.getValue(int) 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetBtreeTable.getValues() 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetTableDataCursor$16.run(SqlJetDb) 6 0.498 org.tmatesoft.sqljet.core.table.SqlJetDb$3.run(SqlJetEngine) 6 0.498 org.tmatesoft.sqljet.core.table.engine.SqlJetEngine$12.runSynchronized(SqlJetEngine) 6 0.498 org.tmatesoft.sqljet.core.table.engine.SqlJetEngine.runSynchronized(ISqlJetEngineSynchronized) 6 0.498 org.tmatesoft.sqljet.core.table.engine.SqlJetEngine.runEngineTransaction(ISqlJetEngineTransaction, SqlJetTransactionMode) 6 0.498 org.tmatesoft.sqljet.core.table.SqlJetDb.runTransaction(ISqlJetTransaction, SqlJetTransactionMode) 6 0.498 org.tmatesoft.sqljet.core.table.SqlJetDb.runReadTransaction(ISqlJetTransaction) 6 0.498 org.tmatesoft.sqljet.core.internal.table.SqlJetTableDataCursor.getRowValues() 6 0.498 org.tmatesoft.svn.core.internal.db.SVNSqlJetSelectStatement.getRowValues2(Map) 5 0.415 org.tmatesoft.svn.core.internal.db.SVNSqlJetSelectStatement.loadRowValues(boolean) 5 0.415 org.tmatesoft.svn.core.internal.db.SVNSqlJetSelectStatement.next() 5 0.415 org.tmatesoft.svn.core.internal.wc17.db.SVNWCDb.addChildren(Set, SVNSqlJetStatement) 2 0.166 org.tmatesoft.svn.core.internal.wc17.db.SVNWCDb.gatherChildren(File, boolean, boolean) 2 0.166 org.tmatesoft.svn.core.internal.wc17.db.SVNWCDb.readChildren(File) 2 0.166 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.repairTimestamps(SVNWCContext, File) 2 0.166 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.repairTimestamps(SVNWCContext, File) 2 0.166 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.repairTimestamps(SVNWCContext, File) 2 0.166 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.repairTimestamps(SVNWCContext, File) 2 0.166 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.cleanupInternal(SVNWCContext, File) 1 0.083 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.cleanup(SVNWCContext, File) 1 0.083 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.run(SVNWCContext) 1 0.083 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgCleanup.run(SVNWCContext) 1 0.083 org.tmatesoft.svn.core.internal.wc2.ng.SvnNgOperationRunner.run() 1 0.083 org.tmatesoft.svn.core.internal.wc2.SvnOperationRunner.run(SvnOperation) 1 0.083 org.tmatesoft.svn.core.wc2.SvnOperationFactory.run(SvnOperation) 1 0.083 org.tmatesoft.svn.core.wc2.SvnOperation.run() 1 0.083 org.tmatesoft.svn.core.javahl17.SVNClientImpl.cleanup(String) 1 0.083 org.tigris.subversion.svnclientadapter.javahl.AbstractJhlClientAdapter.cleanup(File) 1 0.083 org.wso2.carbon.deployment.synchronizer.subversion.SVNBasedArtifactRepository.commit(int, String) 1 0.083 org.wso2.carbon.deployment.synchronizer.DeploymentSynchronizer.commit() 1 0.083 org.wso2.carbon.deployment.synchronizer.internal.DeploymentSynchronizerServiceImpl.commit(int) 1 0.083 org.wso2.carbon.core.deployment.CarbonDeploymentSchedulerTask.deploymentSyncCommit() 1 0.083 org.wso2.carbon.core.deployment.CarbonDeploymentSchedulerTask.run() 1 0.083 java.util.concurrent.Executors$RunnableAdapter.call() 1 0.083 java.util.concurrent.FutureTask.runAndReset() 1 0.083 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor$ScheduledFutureTask) 1 0.083 java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run() 1 0.083 java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor$Worker) 1 0.083 java.util.concurrent.ThreadPoolExecutor$Worker.run() 1 0.083 java.lang.Thread.run() 1 0.083 Why is this running periodically? How to configure the time period? Is there a way to disable this scheduled task and update only when there's a notification? Product is WSO2 API Manager 1.10. Thanks! Best Regards, -- Isuru Perera Associate Technical Lead | WSO2, Inc. | http://wso2.com/ Lean . Enterprise . Middleware about.me/chrishantha Contact: +IsuruPereraWSO2 <https://www.google.com/+IsuruPereraWSO2/about>
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