[infinispan-issues] [JBoss JIRA] (ISPN-5270) Deadlock in InfinispanDirectoryProvider startup

[Sanne Grinovero (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-5270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046719#comment-13046719 ] 

Sanne Grinovero commented on ISPN-5270:
---------------------------------------

You're definitely not supposed to store the indexes in the same Cache which is being indexed, so I wouldn't mark it as critical.

The easy solution is to validate aggressively (throwing exceptions) to prevent users to have indexing enabled on the caches which are being used to store an index.

If there's a nicer solution, that would be better but sounds complex.

> Deadlock in InfinispanDirectoryProvider startup
> -----------------------------------------------
>
>                 Key: ISPN-5270
>                 URL: https://issues.jboss.org/browse/ISPN-5270
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Embedded Querying
>    Affects Versions: 7.2.0.Alpha1, 7.1.1.Final
>            Reporter: Dan Berindei
>            Priority: Critical
>         Attachments: surefire.stacks, surefire2.stacks
>
>
> The InfinispanDirectoryProvider tries to start the metadata, data, and locking caches when it starts up, with {{DefaultCacheManager.startCaches()}}.
> However, when one of these caches (e.g. the metadata cache) starts, the {{LifecycleManager.cacheStarting()}}, which can then try to start the InfinispanDirectoryProvider again:
> {noformat}
> "CacheStartThread,null,LuceneIndexesMetadata" prio=10 tid=0x00007f5f74484000 nid=0xe42 in Object.wait() [0x00007f5efff48000]
>    java.lang.Thread.State: WAITING (on object monitor)
> 	at java.lang.Object.wait(Native Method)
> 	- waiting on <0x00000000c2180000> (a org.infinispan.manager.DefaultCacheManager$1)
> 	at java.lang.Thread.join(Thread.java:1281)
> 	- locked <0x00000000c2180000> (a org.infinispan.manager.DefaultCacheManager$1)
> 	at java.lang.Thread.join(Thread.java:1355)
> 	at org.infinispan.manager.DefaultCacheManager.startCaches(DefaultCacheManager.java:465)
> 	at org.hibernate.search.infinispan.spi.InfinispanDirectoryProvider.start(InfinispanDirectoryProvider.java:84)
> 	at org.hibernate.search.indexes.spi.DirectoryBasedIndexManager.initialize(DirectoryBasedIndexManager.java:88)
> 	at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManager(IndexManagerHolder.java:256)
> 	at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManager(IndexManagerHolder.java:513)
> 	- locked <0x00000000ce6001d0> (a org.hibernate.search.indexes.impl.IndexManagerHolder)
> 	at org.hibernate.search.indexes.impl.IndexManagerHolder.createIndexManagers(IndexManagerHolder.java:482)
> 	at org.hibernate.search.indexes.impl.IndexManagerHolder.buildEntityIndexBinding(IndexManagerHolder.java:91)
> 	- locked <0x00000000ce6001d0> (a org.hibernate.search.indexes.impl.IndexManagerHolder)
> 	at org.hibernate.search.spi.SearchIntegratorBuilder.initDocumentBuilders(SearchIntegratorBuilder.java:366)
> 	at org.hibernate.search.spi.SearchIntegratorBuilder.buildNewSearchFactory(SearchIntegratorBuilder.java:204)
> 	at org.hibernate.search.spi.SearchIntegratorBuilder.buildSearchIntegrator(SearchIntegratorBuilder.java:122)
> 	at org.hibernate.search.spi.SearchFactoryBuilder.buildSearchFactory(SearchFactoryBuilder.java:35)
> 	at org.infinispan.query.impl.LifecycleManager.getSearchFactory(LifecycleManager.java:260)
> 	at org.infinispan.query.impl.LifecycleManager.cacheStarting(LifecycleManager.java:102)
> 	at org.infinispan.factories.ComponentRegistry.notifyCacheStarting(ComponentRegistry.java:230)
> 	at org.infinispan.factories.ComponentRegistry.start(ComponentRegistry.java:216)
> 	at org.infinispan.cache.impl.CacheImpl.start(CacheImpl.java:814)
> 	at org.infinispan.manager.DefaultCacheManager.wireAndStartCache(DefaultCacheManager.java:591)
> 	at org.infinispan.manager.DefaultCacheManager.createCache(DefaultCacheManager.java:546)
> 	at org.infinispan.manager.DefaultCacheManager.access$100(DefaultCacheManager.java:115)
> 	at org.infinispan.manager.DefaultCacheManager$1.run(DefaultCacheManager.java:452)
> {noformat}
> This can hang the test, the attached thread dumps show {{EmbeddedCompatTest}} and {{IndexCacheStopTest}}.



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