Hi there,
I'm issuing a number of queries to DB at the same time from different
threads. Times to times I got this exception
com.orientechnologies.orient.enterprise.channel.binary.OResponseProcessingException:
Exception during response processing.
at
com.orientechnologies.orient.enterprise.channel.binary.OChannelBinaryAsynchClient.throwSerializedException(OChannelBinaryAsynchClient.java:264)
at
com.orientechnologies.orient.enterprise.channel.binary.OChannelBinaryAsynchClient.handleStatus(OChannelBinaryAsynchClient.java:231)
at
com.orientechnologies.orient.enterprise.channel.binary.OChannelBinaryAsynchClient.beginResponse(OChannelBinaryAsynchClient.java:202)
at
com.orientechnologies.orient.enterprise.channel.binary.OChannelBinaryAsynchClient.beginResponse(OChannelBinaryAsynchClient.java:113)
at
com.orientechnologies.orient.client.remote.OStorageRemote.beginResponse(OStorageRemote.java:1951)
at
com.orientechnologies.orient.client.remote.OStorageRemote.command(OStorageRemote.java:982)
at
com.orientechnologies.orient.client.remote.OStorageRemoteThread.command(OStorageRemoteThread.java:431)
at
com.orientechnologies.orient.core.sql.query.OSQLQuery.run(OSQLQuery.java:69)
at
com.orientechnologies.orient.core.sql.query.OSQLSynchQuery.run(OSQLSynchQuery.java:82)
at
com.orientechnologies.orient.core.query.OQueryAbstract.execute(OQueryAbstract.java:29)
at
com.tinkerpop.blueprints.impls.orient.OrientGraphCommand.execute(OrientGraphCommand.java:28)
at
com.ibm.forensics.controllers.EpController.queryRelations(EpController.java:66)
at
com.ibm.forensics.controllers.EpController.grid(EpController.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:88)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:618)
at
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
at
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)
at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)
at
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:465)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
at
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:291)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:769)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:698)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:891)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:804)
Caused by:
com.orientechnologies.orient.core.exception.OCommandExecutionException:
Error on execution of command: sql.select count(*) from (traverse
both(RELATED) from #21:7 while $depth < 2 ) where @class='IPAddress' and
@rid <> #21:7
at
com.orientechnologies.orient.core.storage.OStorageEmbedded.executeCommand(OStorageEmbedded.java:102)
at
com.orientechnologies.orient.core.storage.OStorageEmbedded.command(OStorageEmbedded.java:85)
at
com.orientechnologies.orient.core.sql.query.OSQLQuery.run(OSQLQuery.java:69)
at
com.orientechnologies.orient.core.sql.query.OSQLSynchQuery.run(OSQLSynchQuery.java:82)
at
com.orientechnologies.orient.core.query.OQueryAbstract.execute(OQueryAbstract.java:29)
at
com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.command(ONetworkProtocolBinary.java:1320)
at
com.orientechnologies.orient.server.network.protocol.binary.ONetworkProtocolBinary.executeRequest(ONetworkProtocolBinary.java:330)
at
com.orientechnologies.orient.server.network.protocol.binary.OBinaryNetworkProtocolAbstract.execute(OBinaryNetworkProtocolAbstract.java:125)
at
com.orientechnologies.common.thread.OSoftThread.run(OSoftThread.java:45)
Caused by: java.lang.NullPointerException
Looks like thread race to me.
Any ideas?
-Andrey
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