[
https://issues.apache.org/jira/browse/YARN-5432?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Li Lu updated YARN-5432:
------------------------
Attachment: YARN-5432-trunk.002.patch
Had some offline discussion with [~djp]. Seems we're on a track of
overcomplicating problems. The problem reported in YARN-4987 only occurs when
the app cache is too small, and we limit the size of the app cache to control
the memory usage upper bound of the ATS reader. So, instead of using refcounts
and handle corner cases like the one reported here, another solution is to
insist on the app cache size. We also make it clear in the config's description
about the potential effect of setting a cache size that is too small.
> Lock already held by another process while LevelDB cache store creation for
> dag
> -------------------------------------------------------------------------------
>
> Key: YARN-5432
> URL: https://issues.apache.org/jira/browse/YARN-5432
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelineserver
> Affects Versions: 2.8.0, 2.7.3
> Reporter: Karam Singh
> Assignee: Li Lu
> Attachments: YARN-5432-trunk.001.patch, YARN-5432-trunk.002.patch
>
>
> While running ATS stress tests, 15 concurrent ATS reads (python thread
> which gives ws/v1/time/TEZ_DAG_ID,
> ws/v1/time/TEZ_VERTEX_DI?primaryFilter=TEZ_DAG_ID:<dag_id> etc) calls.
> Note: Summary store for ATSv1.5 is RLD, but as we for each dag/application
> ATS also creates leveldb cache when vertex/task/taskattempts information is
> queried from ATS.
>
> Getting following type of excpetion very frequently in ATS logs :-
> 2016-07-23 00:01:56,089 [1517798697@qtp-1198158701-850] INFO
> org.apache.hadoop.service.AbstractService: Service
> LeveldbCache.timelineEntityGroupId_1469090881194_4832_application_1469090881194_4832
> failed in state INITED; cause:
> org.fusesource.leveldbjni.internal.NativeDB$DBException: IO error: lock
> /grid/4/yarn_ats/atsv15_rld/timelineEntityGroupId_1469090881194_4832_application_1469090881194_4832-timeline-cache.ldb/LOCK:
> already held by process
> org.fusesource.leveldbjni.internal.NativeDB$DBException: IO error: lock
> /grid/4/yarn_ats/atsv15_rld/timelineEntityGroupId_1469090881194_4832_application_1469090881194_4832-timeline-cache.ldb/LOCK:
> already held by process
> at
> org.fusesource.leveldbjni.internal.NativeDB.checkStatus(NativeDB.java:200)
> at org.fusesource.leveldbjni.internal.NativeDB.open(NativeDB.java:218)
> at org.fusesource.leveldbjni.JniDBFactory.open(JniDBFactory.java:168)
> at
> org.apache.hadoop.yarn.server.timeline.LevelDBCacheTimelineStore.serviceInit(LevelDBCacheTimelineStore.java:108)
> at
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
> at
> org.apache.hadoop.yarn.server.timeline.EntityCacheItem.refreshCache(EntityCacheItem.java:113)
> at
> org.apache.hadoop.yarn.server.timeline.EntityGroupFSTimelineStore.getCachedStore(EntityGroupFSTimelineStore.java:1021)
> at
> org.apache.hadoop.yarn.server.timeline.EntityGroupFSTimelineStore.getTimelineStoresFromCacheIds(EntityGroupFSTimelineStore.java:936)
> at
> org.apache.hadoop.yarn.server.timeline.EntityGroupFSTimelineStore.getTimelineStoresForRead(EntityGroupFSTimelineStore.java:989)
> at
> org.apache.hadoop.yarn.server.timeline.EntityGroupFSTimelineStore.getEntities(EntityGroupFSTimelineStore.java:1041)
> at
> org.apache.hadoop.yarn.server.timeline.TimelineDataManager.doGetEntities(TimelineDataManager.java:168)
> at
> org.apache.hadoop.yarn.server.timeline.TimelineDataManager.getEntities(TimelineDataManager.java:138)
> at
> org.apache.hadoop.yarn.server.timeline.webapp.TimelineWebServices.getEntities(TimelineWebServices.java:117)
> at sun.reflect.GeneratedMethodAccessor82.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
> at
> com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
> at
> com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
> at
> com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:288)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1469)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1400)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1349)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1339)
> at
> com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:537)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:886)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:834)
> at
> com.sun.jersey.spi.container.servlet.ServletContainer.doFilter(ServletContainer.java:795)
> at
> com.google.inject.servlet.FilterDefinition.doFilter(FilterDefinition.java:163)
> at
> com.google.inject.servlet.FilterChainInvocation.doFilter(FilterChainInvocation.java:58)
> at
> com.google.inject.servlet.ManagedFilterPipeline.dispatch(ManagedFilterPipeline.java:118)
> at
> com.google.inject.servlet.GuiceFilter.doFilter(GuiceFilter.java:113)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> at
> org.apache.hadoop.security.http.XFrameOptionsFilter.doFilter(XFrameOptionsFilter.java:57)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
