Andrey, I would really appreciate even a hint into what we should look into to resolve these exceptions, when you have some time. We are a bit stuck.
Thanks. On Friday, February 21, 2014 6:13:00 AM UTC-5, Andrey Lomakin wrote: > > Hi Odysseas, > I will finish commercial issue during 2 days then I will help you with > migration. > > > On Thu, Feb 20, 2014 at 8:06 PM, Odysseas <[email protected]<javascript:> > > wrote: > >> We are seeing various concurrent modification exceptions after moving to >>> 1.7-rc1. Once these start to occur, we then end up getting exceptions about >>> no more resources in the pool (example exception shown at the bottom). Do >>> you have any ideas as to why we are seeing these exceptions? They are >>> occurring during read operations so should we be using non transactional >>> connections for these operations? I haven't investigate the OrientDB code >>> yet but I don't understand why the load operation turns into an add >>> operation in this step. Any clues would be highly appreciated. Thanks, >>> Odysseas >>> >> >> at >> com.orientechnologies.orient.core.tx.OTransactionOptimistic.addRecord(OTransactionOptimistic.java:314) >> at >> com.orientechnologies.orient.core.tx.OTransactionOptimistic.loadRecord(OTransactionOptimistic.java:291) >> >> >> SEVERE: Error on releasing database 'person-db' in pool >> java.util.ConcurrentModificationException >> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:894) >> at java.util.HashMap$ValueIterator.next(HashMap.java:922) >> at >> com.orientechnologies.orient.core.tx.OTransactionOptimistic.rollback(OTransactionOptimistic.java:252) >> at >> com.orientechnologies.orient.core.db.record.ODatabaseRecordTx.rollback(ODatabaseRecordTx.java:163) >> at >> com.orientechnologies.orient.core.db.document.ODatabaseDocumentTx.rollback(ODatabaseDocumentTx.java:468) >> at >> com.orientechnologies.orient.core.db.document.ODatabaseDocumentTxPooled.close(ODatabaseDocumentTxPooled.java:95) >> at >> org.openhie.openempi.entity.dao.orientdb.EntityDaoOrientdb.executeQuery(EntityDaoOrientdb.java:478) >> >> >> and >> >> rientdb.java:473) - Failed while trying to query the system using entity: >> person due to >> com.orientechnologies.orient.core.exception.OTransactionException: Invalid >> state of the transaction. The transaction must be begun. >> com.orientechnologies.orient.core.exception.OTransactionException: >> Invalid state of the transaction. The transaction must be begun. >> at >> com.orientechnologies.orient.core.tx.OTransactionRealAbstract.checkTransaction(OTransactionRealAbstract.java:342) >> at >> com.orientechnologies.orient.core.tx.OTransactionOptimistic.addRecord(OTransactionOptimistic.java:314) >> at >> com.orientechnologies.orient.core.tx.OTransactionOptimistic.loadRecord(OTransactionOptimistic.java:291) >> at >> com.orientechnologies.orient.core.db.record.ODatabaseRecordTx.load(ODatabaseRecordTx.java:203) >> at >> com.orientechnologies.orient.core.db.record.ODatabaseRecordAbstract.load(ODatabaseRecordAbstract.java:1) >> at >> com.orientechnologies.orient.core.id.ORecordId.getRecord(ORecordId.java:296) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLSelect.fillSearchIndexResultSet(OCommandExecutorSQLSelect.java:832) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLSelect.searchForIndexes(OCommandExecutorSQLSelect.java:716) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLSelect.searchInClasses(OCommandExecutorSQLSelect.java:614) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLResultsetAbstract.assignTarget(OCommandExecutorSQLResultsetAbstract.java:139) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLSelect.assignTarget(OCommandExecutorSQLSelect.java:354) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLSelect.executeSearch(OCommandExecutorSQLSelect.java:328) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLSelect.execute(OCommandExecutorSQLSelect.java:313) >> at >> com.orientechnologies.orient.core.sql.OCommandExecutorSQLDelegate.execute(OCommandExecutorSQLDelegate.java:57) >> at >> com.orientechnologies.orient.core.storage.OStorageEmbedded.executeCommand(OStorageEmbedded.java:96) >> 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.core.db.record.ODatabaseRecordAbstract.query(ODatabaseRecordAbstract.java:557) >> at >> com.orientechnologies.orient.core.db.ODatabaseRecordWrapperAbstract.query(ODatabaseRecordWrapperAbstract.java:188) >> >> com.orientechnologies.common.concur.lock.OLockException: Not more >> resources available in pool. Requested resource: >> plocal:/mnt/sysnet/person-db >> at >> com.orientechnologies.common.concur.resource.OResourcePool.getResource(OResourcePool.java:46) >> at >> com.orientechnologies.orient.core.db.ODatabasePoolAbstract.acquire(ODatabasePoolAbstract.java:93) >> at >> com.orientechnologies.orient.core.db.ODatabasePoolAbstract.acquire(ODatabasePoolAbstract.java:78) >> at >> com.orientechnologies.orient.core.db.ODatabasePoolBase.acquire(ODatabasePoolBase.java:105) >> at >> com.tinkerpop.blueprints.impls.orient.OrientBaseGraph.<init>(OrientBaseGraph.java:121) >> at >> com.tinkerpop.blueprints.impls.orient.OrientTransactionalGraph.<init>(OrientTransactionalGraph.java:37) >> at >> com.tinkerpop.blueprints.impls.orient.OrientGraph.<init>(OrientGraph.java:54) >> at >> com.tinkerpop.blueprints.impls.orient.OrientGraphFactory.getTx(OrientGraphFactory.java:49) >> >> -- >> >> --- >> You received this message because you are subscribed to the Google Groups >> "OrientDB" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > > > -- > Best regards, > Andrey Lomakin. > > Orient Technologies > the Company behind OrientDB > > -- --- You received this message because you are subscribed to the Google Groups "OrientDB" group. 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