Hi,
We are getting a ODatabaseException from our application, and I see this
"Cannot unlock a never acquired lock" error message in the stack trace.
What does this error mean? How can we avoid it? We are using 1.7.10 under
CentOS.
com.orientechnologies.orient.core.exception.ODatabaseException: Error on
retrieving record #18:27 (cluster: user)
at
com.orientechnologies.orient.core.db.raw.ODatabaseRaw.read(ODatabaseRaw.java:257)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordAbstract.executeReadRecord(ODatabaseRecordAbstract.java:1005)
at
com.orientechnologies.orient.core.tx.OTransactionNoTx.loadRecord(OTransactionNoTx.java:70)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordTx.load(ODatabaseRecordTx.java:251)
at
com.orientechnologies.orient.core.db.record.ODatabaseRecordTx.load(ODatabaseRecordTx.java:40)
at
com.orientechnologies.orient.core.id.ORecordId.getRecord(ORecordId.java:298)
at
org.ndexbio.common.models.dao.orientdb.OrientdbDAO.getRecordById(OrientdbDAO.java:71)
at
org.ndexbio.common.models.dao.orientdb.UserDAO.getPendingRequest(UserDAO.java:962)
at
org.ndexbio.rest.services.UserService.getPendingRequests(UserService.java:531)
at sun.reflect.GeneratedMethodAccessor86.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
at
org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:237)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
at
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
at
org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
at
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: com.orientechnologies.common.concur.lock.OLockException: Cannot
unlock a never acquired lock
at
com.orientechnologies.orient.core.tx.OTransactionAbstract.unlockRecord(OTransactionAbstract.java:119)
at
com.orientechnologies.orient.core.id.ORecordId.unlock(ORecordId.java:272)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage.readRecord(OLocalPaginatedStorage.java:1498)
at
com.orientechnologies.orient.core.storage.impl.local.paginated.OLocalPaginatedStorage.readRecord(OLocalPaginatedStorage.java:754)
at
com.orientechnologies.orient.core.db.raw.ODatabaseRaw.read(ODatabaseRaw.java:250)
... 41 more
Thanks,
Jing
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