Hi, I set debug level for logging. Looks like is one thread responsible for maintenance/GC level db files (Thread-2). This thread produce WARN message “Invalid log position”.
Is it possible that is clean process remove more than is needed? In below log is visible such sequence: Topic: 8 GC to seq: 3452 Deleting log at 7790728 Invalid log position: 3475 2016-04-26 15:46:51,570 | DEBUG | Topic: 8 GC to seq: 2941 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:01,573 | DEBUG | Topic: 8 GC to seq: 2953 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:11,575 | DEBUG | Topic: 8 GC to seq: 2967 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:21,577 | DEBUG | Topic: 8 GC to seq: 2983 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:31,579 | DEBUG | Topic: 8 GC to seq: 2997 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:41,582 | DEBUG | Topic: 8 GC to seq: 3024 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:50,713 | DEBUG | Taking a snapshot of the current index: /apps/data/00000000050de7d0.index | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:51,584 | DEBUG | Topic: 8 GC to seq: 3050 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:47:51,585 | DEBUG | Log no longer referenced: 50de7d0 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:01,589 | DEBUG | Topic: 8 GC to seq: 3080 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:01,591 | DEBUG | Log no longer referenced: 50de7d0 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:11,592 | DEBUG | Topic: 8 GC to seq: 3123 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:11,593 | DEBUG | Log no longer referenced: 50de7d0 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:20,327 | DEBUG | Taking a snapshot of the current index: /apps/data/0000000006433269.index | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:21,594 | DEBUG | Topic: 8 GC to seq: 3185 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:21,595 | DEBUG | Log no longer referenced: 50de7d0 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:21,595 | DEBUG | Log no longer referenced: 6433269 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:21,597 | DEBUG | Deleting log at 50de7d0 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:31,603 | DEBUG | Topic: 8 GC to seq: 3251 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:41,394 | WARN | Invalid log position: 3319 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:41,605 | DEBUG | Topic: 8 GC to seq: 3323 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:41,606 | DEBUG | Log no longer referenced: 6433269 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:45,571 | DEBUG | Taking a snapshot of the current index: /apps/data/0000000007790728.index | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:51,608 | DEBUG | Topic: 8 GC to seq: 3403 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:51,609 | DEBUG | Deleting log at 6433269 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:51,609 | DEBUG | Log no longer referenced: 6433269 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:51,609 | DEBUG | Log no longer referenced: 7790728 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:48:55,614 | DEBUG | Taking a snapshot of the current index: /apps/data/0000000008b6148f.index | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:49:01,616 | DEBUG | Topic: 8 GC to seq: 3452 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:49:01,617 | DEBUG | Deleting log at 7790728 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:49:01,617 | DEBUG | Log no longer referenced: 7790728 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 2016-04-26 15:49:05,181 | WARN | Invalid log position: 3475 | org.apache.activemq.leveldb.LevelDBClient | Thread-2 -- View this message in context: http://activemq.2283324.n4.nabble.com/LevelDB-and-warning-invalid-log-position-tp4711240p4711261.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.
