[HIVE-12581] Concurrent calls to BoneCP.getConnection() lock up

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.0.0
• Component/s: Transactions
• Target Version/s: 1.3.0
• Assignee: Eugene Koifman
• Reporter: Eugene Koifman
• Created: 03/Dec/15 03:16
• Updated: 03/Dec/15 21:11
• Resolved: 03/Dec/15 21:11

Description

Thread 31078: (state = BLOCKED)
 - sun.misc.Unsafe.park(boolean, long) @bci=0 (Interpreted frame)
 - java.util.concurrent.locks.LockSupport.parkNanos(java.lang.Object, long) @bci=20, line=226 (Interpreted frame)
 - java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(long) @bci=68, line=2082 (Interpreted frame)
 - java.util.concurrent.LinkedBlockingQueue.poll(long, java.util.concurrent.TimeUnit) @bci=62, line=467 (Interpreted frame)
 - com.jolbox.bonecp.DefaultConnectionStrategy.getConnectionInternal() @bci=50, line=82 (Interpreted frame)
 - com.jolbox.bonecp.AbstractConnectionStrategy.getConnection() @bci=6, line=90 (Interpreted frame)
 - com.jolbox.bonecp.BoneCP.getConnection() @bci=4, line=553 (Interpreted frame)
 - com.jolbox.bonecp.BoneCPDataSource.getConnection() @bci=108, line=131 (Interpreted frame)
 - org.apache.hadoop.hive.metastore.txn.TxnHandler.getDbConn(int) @bci=16, line=973 (Interpreted frame)
 - org.apache.hadoop.hive.metastore.txn.TxnHandler.checkLock(org.apache.hadoop.hive.metastore.api.CheckLockRequest) @bci=88, line=530 (Interpreted frame)
 

Sometimes these lock up, i.e. some sort of deadlock happens inside the connection pool

Issue Links

• relates to: HIVE-11915 BoneCP returns closed connections from the pool