[ https://issues.apache.org/jira/browse/IGNITE-1551?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Bench updated IGNITE-1551: -------------------------------- Description: We have a process that pulls jobs from a queue and puts associated assets into a cache using IgniteCache.put. The object we put into the cache is an object holding a map of Enums and byte arrays. {code} private Map<AssetTypeEnum, byte[]> assets = new EnumMap<>(AssetTypeEnum.class); {code} We are using a UUID as the key. The byte arrays can become quite large - the batch it was processing when the issue occurred were up to 30mb in size. The thread got stuck in {code}IgniteCache.put{code} and remained stuck for a few hours until we restarted Tomcat. I took a memory Snapshot using YourKit while the application was frozen (https://onedrive.live.com/redir?resid=F06891F3AE093614!892&authkey=!AMfOdu7-jEtk_KA&ithint=file%2csnapshot) which shows the thread {{taskExecutorBean-3}} waiting in sun.misc.Unsafe.park. It has spent 100% of the time I profiled here. was: We have a process that pulls jobs from a queue and puts associated assets into a cache using IgniteCache.put. The object we put into the cache is an object holding a map of Enums and byte arrays. {code} private Map<AssetTypeEnum, byte[]> assets = new EnumMap<>(AssetTypeEnum.class); {code} We are using a UUID as the key. The byte arrays can become quite large - the batch it was processing when the issue occurred were up to 30mb in size. The thread got stuck in {code}IgniteCache.put{code} and remained stuck for a few hours until we restarted Tomcat. I took a memory Snapshot using YourKit while the application was frozen (attached) which shows the thread {{taskExecutorBean-3}} waiting in sun.misc.Unsafe.park. It has spent 100% of the time I profiled here. > IgniteCache.put hangs indefinatly > --------------------------------- > > Key: IGNITE-1551 > URL: https://issues.apache.org/jira/browse/IGNITE-1551 > Project: Ignite > Issue Type: Bug > Components: cache > Environment: Ubuntu 14.04 > java version "1.8.0_51" > Java(TM) SE Runtime Environment (build 1.8.0_51-b16) > Java HotSpot(TM) 64-Bit Server VM (build 25.51-b03, mixed mode) > Tomcat 7 > Reporter: James Bench > > We have a process that pulls jobs from a queue and puts associated assets > into a cache using IgniteCache.put. > The object we put into the cache is an object holding a map of Enums and byte > arrays. > {code} > private Map<AssetTypeEnum, byte[]> assets = new > EnumMap<>(AssetTypeEnum.class); > {code} > We are using a UUID as the key. > The byte arrays can become quite large - the batch it was processing when the > issue occurred were up to 30mb in size. > The thread got stuck in {code}IgniteCache.put{code} and remained stuck for a > few hours until we restarted Tomcat. > I took a memory Snapshot using YourKit while the application was frozen > (https://onedrive.live.com/redir?resid=F06891F3AE093614!892&authkey=!AMfOdu7-jEtk_KA&ithint=file%2csnapshot) > which shows the thread {{taskExecutorBean-3}} waiting in > sun.misc.Unsafe.park. It has spent 100% of the time I profiled here. -- This message was sent by Atlassian JIRA (v6.3.4#6332)