Jörg Hoh created OAK-8626:
-----------------------------
Summary: Make query statistic handling asynchronous
Key: OAK-8626
URL: https://issues.apache.org/jira/browse/OAK-8626
Project: Jackrabbit Oak
Issue Type: Improvement
Components: query
Affects Versions: 1.8.11
Reporter: Jörg Hoh
During performance analysis I found in a threaddump a number of threads in this
state:
{noformat}
"qtp1082699324-121518" prio=5 tid=0x1daae nid=0xffffffff timed_waiting
java.lang.Thread.State: TIMED_WAITING
at
java.util.concurrent.ConcurrentSkipListMap.size(ConcurrentSkipListMap.java:1639)
at
org.apache.jackrabbit.oak.query.stats.QueryStatsMBeanImpl.getQueryExecution(QueryStatsMBeanImpl.java:134)
at
org.apache.jackrabbit.oak.query.QueryEngineImpl.parseQuery(QueryEngineImpl.java:160)
at
org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:259)
at
org.apache.jackrabbit.oak.query.QueryEngineImpl.executeQuery(QueryEngineImpl.java:235)
at
org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:351)
at
org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:345)
at
org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.resolveUUID(IdentifierManager.java:341)
at
org.apache.jackrabbit.oak.plugins.identifier.IdentifierManager.getTree(IdentifierManager.java:136)
at
org.apache.jackrabbit.oak.security.authentication.token.TokenProviderImpl.getTokenInfo(TokenProviderImpl.java:269)
at
org.apache.jackrabbit.oak.security.authentication.token.TokenAuthentication.validateCredentials(TokenAuthentication.java:105)
at
org.apache.jackrabbit.oak.security.authentication.token.TokenAuthentication.authenticate(TokenAuthentication.java:58)
at
org.apache.jackrabbit.oak.security.authentication.token.TokenLoginModule.login(TokenLoginModule.java:136)
at
org.apache.felix.jaas.boot.ProxyLoginModule.login(ProxyLoginModule.java:52)
at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at javax.security.auth.login.LoginContext.invoke(LoginContext.java:755)
at
javax.security.auth.login.LoginContext.access$000(LoginContext.java:195)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:682)
at javax.security.auth.login.LoginContext$4.run(LoginContext.java:680)
at java.security.AccessController.doPrivileged(Native Method)
at
javax.security.auth.login.LoginContext.invokePriv(LoginContext.java:680)
at javax.security.auth.login.LoginContext.login(LoginContext.java:587)
at
org.apache.jackrabbit.oak.core.ContentRepositoryImpl.login(ContentRepositoryImpl.java:163)
[...]
{noformat}
Is it required to do the cache statistic handling within a query itself? Or is
it possible to perform it outside of it asynchronously in a dedicated thread?
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