[JIRA] [scm-sync-configuration] (JENKINS-18715) scandir being triggered by FingerPrint.save

[zhh...@gmail.com (JIRA)]

Hua Zhang created JENKINS-18715 scandir being triggered by FingerPrint.save Issue Type: Bug Assignee: Frédéric Camblor Components: scm-sync-configuration Created: 11/Jul/13 4:14 PM Description: We were experiencing extrem slow fingerprinting in post-build step. It turns out that the include pattern of scm sync configure plugin is triggered by FingerPrint.save() (details see discussion in mailing list[1]). So the include pattern may significantly impact the speed. Here is a thread dump: Executor #1 for comitdev16 : executing SD-2112 #3" Id=62 Group=main RUNNABLE at java.io.UnixFileSystem.list(Native Method) at java.io.File.list(File.java:973) at org.apache.tools.ant.DirectoryScanner.scandir(DirectoryScanner.java:1257) at org.apache.tools.ant.DirectoryScanner.scandir(DirectoryScanner.java:1287) at org.apache.tools.ant.DirectoryScanner.scandir(DirectoryScanner.java:1287) at org.apache.tools.ant.DirectoryScanner.scandir(DirectoryScanner.java:1287) at org.apache.tools.ant.DirectoryScanner.scandir(DirectoryScanner.java:1211) at org.apache.tools.ant.DirectoryScanner.checkIncludePatterns(DirectoryScanner.java:1030) at org.apache.tools.ant.DirectoryScanner.scan(DirectoryScanner.java:909) - locked org.apache.tools.ant.DirectoryScanner@34cf6c49 at hudson.plugins.scm_sync_configuration.strategies.model.PatternsEntityMatcher.matchingFilesFrom(PatternsEntityMatcher.java:41) at hudson.plugins.scm_sync_configuration.strategies.model.PatternsEntityMatcher.matches(PatternsEntityMatcher.java:25) at hudson.plugins.scm_sync_configuration.strategies.AbstractScmSyncStrategy.isSaveableApplicable(AbstractScmSyncStrategy.java:53) at hudson.plugins.scm_sync_configuration.ScmSyncConfigurationPlugin.getStrategyForSaveable(ScmSyncConfigurationPlugin.java:277) at hudson.plugins.scm_sync_configuration.extensions.ScmSyncConfigurationSaveableListener.onChange(ScmSyncConfigurationSaveableListener.java:22) at hudson.model.listeners.SaveableListener.fireOnChange(SaveableListener.java:78) at hudson.model.Fingerprint.save(Fingerprint.java:862) - locked hudson.model.Fingerprint@281c2370 at hudson.model.Fingerprint.<init>(Fingerprint.java:597) at hudson.model.FingerprintMap.create(FingerprintMap.java:90) at hudson.model.FingerprintMap.create(FingerprintMap.java:45) at hudson.util.KeyedDataStorage.get(KeyedDataStorage.java:156) at hudson.model.FingerprintMap.get(FingerprintMap.java:79) at hudson.model.FingerprintMap.get(FingerprintMap.java:45) at hudson.util.KeyedDataStorage.getOrCreate(KeyedDataStorage.java:108) at hudson.model.FingerprintMap.getOrCreate(FingerprintMap.java:65) at hudson.tasks.Fingerprinter$1Record.addRecord(Fingerprinter.java:210) at hudson.tasks.Fingerprinter.record(Fingerprinter.java:254) at hudson.tasks.Fingerprinter.perform(Fingerprinter.java:133) at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:19) at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:804) at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:776) at hudson.model.Build$BuildExecution.post2(Build.java:183) at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:726) at hudson.model.Run.execute(Run.java:1601) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46) at hudson.model.ResourceController.execute(ResourceController.java:88) at hudson.model.Executor.run(Executor.java:241) I think reacting to all SaveableListener.fireOnChange might be too aggressive, since in this paticular case, no configuration changes are involved. [1] https://groups.google.com/forum/#!topic/jenkinsci-users/AftANOOYgt8 Environment: Jenkins 1.518 Project: Jenkins Labels: fingerprints Priority: Minor Reporter: Hua Zhang

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