Database Software

an error happened on my timesten, it dosen‘t work ,After about 30 minutes,it Recovered .
why dose this error happened， i Didn’t do anything. who can help me ???




20:28:52.04 Err : : 4839: 6757/6000000000743ff0: Assertion failed: (((np)->flags) & ((sbTnFlag_t) 0x8)) || (((np)->flags) & ((sbTnFlag_t) 0x4)) [ttree.c:4.391:tnInsert:8652] PID 6757 (timestenrepd) CONN 208 (RECEIVER) 2012-08-01 20:28:51.998
20:28:52.14 Err : : 4839: 6757/6000000000743ff0: Data store marked invalid [ttree.c:4.391:tnInsert:8652] PID 6757 (timestenrepd) CONN 208 (RECEIVER) Context 0x6000000000743ff0
20:28:52.29 Err : : 4839: 4842/6000000000f23ff0: Checkpoint failure (db.c, line 19415). Apparent cause is database invalidation by another connection.
20:28:52.29 Warn: : 4839: 4842/6000000000ee5010: Forced Disconnect /ttdata/ocs/data1
20:28:52.30 Err : : 4842: TT14000: TimesTen daemon internal error: subd: flusher thread failed in sb_dbLogFlusherSvc, tt error 994 (TT0994: Data store connection terminated. Please reconnect. -- file "dbAPI.c", lineno 9535, procedure "sb_dbLogFlusherSvc")
20:28:52.30 Err : : 4842: TT14000: TimesTen daemon internal error: subd: flusher thread failed to disconnect, tt error 0 (TT0846: Data store connection invalid or not current -- file "dbAPI.c", lineno 3135, procedure "sb_dbDisconnect()").
20:28:52.30 Warn: : 4839: 4842/6000000000f23ff0: Forced Disconnect /ttdata/ocs/data1
20:28:52.30 Warn: : 4839: 4842 ----------: Disconnecting from an old instance
20:28:52.30 Err : : 4842: subd: scheduled checkpoint failed, error TT0994: Data store connection terminated. Please reconnect. -- file "dbAPI.c", lineno 3478, procedure "sb_dbCkpt()"
20:28:52.33 Warn: : 4842: Stopping subdaemon monitor for /ttdata/ocs/data1 because db is invalid.
20:28:52.38 Warn: : 4839: 4842/6000000001043ff0: Forced Disconnect /ttdata/ocs/data1
20:28:52.38 Warn: : 4839: 4842 ----------: Disconnecting from an old instance
20:28:52.38 Err : : 4842: TT14000: TimesTen daemon internal error: subd: monitor thread failed in sb_dbCgExistWithOraObj, tt error 994
20:28:52.38 Err : : 4842: TT14000: TimesTen daemon internal error: subd: monitor thread failed to disconnect, tt error 846.
20:28:52.40 Err : : 4842: TT14000: TimesTen daemon internal error: subd: checkpoint thread failed to disconnect, tt error 846.
20:28:52.52 Warn: : 4839: 28451 60000000001b60e0: Data store in process of loading, try later
20:28:52.64 Warn: : 4839: 11525/6000000000060650: Forced Disconnect /ttdata/ocs/data1
20:28:52.64 Warn: : 4839: 11525 ----------: Disconnecting from an old instance
20:28:52.90 Warn: : 4839: 4842 ------------------: subdaemon process exited
20:28:52.90 Warn: : 4839: 4842 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=3
20:28:52.90 Warn: : 4839: daRecovery: subdaemon 4842, managing data store, failed: invalidate (failcode=202)
20:28:53.09 Warn: : 4839: 11175/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:28:53.09 Warn: : 4839: 11175 ----------: Disconnecting from an old instance
20:28:53.35 Warn: : 4839: 6757 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=7
20:28:53.35 Err : : 4839: TT14000: TimesTen daemon internal error: Could not find the sole user of the data store
20:28:53.35 Err : : 4839: TT14000: TimesTen daemon internal error: Could not find the sole user of the data store
20:28:53.35 Err : : 4839: TT14000: TimesTen daemon internal error: Could not find the sole user of the data store
20:28:53.40 Err : : 4839: TT14000: TimesTen daemon internal error: Could not find the sole user of the data store
20:28:53.40 Err : : 4839: TT14000: TimesTen daemon internal error: Could not find the sole user of the data store
20:28:53.40 Warn: : 4839: Couldn't find data store's user: invalidate
20:28:53.41 Warn: : 4839: 7765/60000000007fe350: Forced Disconnect /ttdata/ocs/data1
20:28:53.41 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:53.42 Warn: : 4839: 7765/6000000000778f60: Forced Disconnect /ttdata/ocs/data1
20:28:53.42 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:53.42 Warn: : 4839: 7765/60000000005f59c0: Forced Disconnect /ttdata/ocs/data1
20:28:53.42 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:53.51 Warn: : 4839: 12205/6000000000060650: Forced Disconnect /ttdata/ocs/data1

20:28:58.34 Warn: : 4839: 11709 ----------: Disconnecting from an old instance
20:28:58.48 Warn: : 4839: 11668/6000000000060650: Forced Disconnect /ttdata/ocs/data1
20:28:58.48 Warn: : 4839: 11668 ----------: Disconnecting from an old instance
20:28:58.95 Warn: : 4839: 7765/600000000064cd90: Forced Disconnect /ttdata/ocs/data1
20:28:58.95 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:58.95 Warn: : 4839: 7765/6000000000182900: Forced Disconnect /ttdata/ocs/data1
20:28:58.95 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:58.95 Warn: ORA: 7765: ora-7765-0001-xxagent04639: Warning: Statement SQLDisconnect(agentHdbc)
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01017: Error: [TimesTen]TT0994: Data store connection terminated. Please reconnect. -- file "dbAPI.c", lineno 3132, procedure "sb_dbDisconnect()", ODBC SQL state = S1000, Additional Warning = 994
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01042: Detected invalid data store.
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01017: Error: [TimesTen]TT0994: Data store connection terminated. Please reconnect. -- file "db.c", lineno 14954, procedure "sbDbAppExit()", ODBC SQL state = S1000, Additional Warning = 994
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01042: Detected invalid data store.
20:28:58.95 Warn: : 4839: 7765/60000000003083a0: Forced Disconnect /ttdata/ocs/data1
20:28:58.95 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:58.95 Warn: ORA: 7765: ora-7765-0001-xxagent04645: Warning: Statement SQLDisconnect(timerHdbc)
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01017: Error: [TimesTen]TT0994: Data store connection terminated. Please reconnect. -- file "dbAPI.c", lineno 3132, procedure "sb_dbDisconnect()", ODBC SQL state = S1000, Additional Warning = 994
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01042: Detected invalid data store.
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01017: Error: [TimesTen]TT0994: Data store connection terminated. Please reconnect. -- file "db.c", lineno 14954, procedure "sbDbAppExit()", ODBC SQL state = S1000, Additional Warning = 994
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01042: Detected invalid data store.
20:28:58.95 Warn: : 4839: 7765/60000000004083a0: Forced Disconnect /ttdata/ocs/data1
20:28:58.95 Warn: : 4839: 7765 ----------: Disconnecting from an old instance
20:28:58.95 Warn: ORA: 7765: ora-7765-0001-xxagent04652: Warning: Statement SQLDisconnect(agingHdbc)
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01017: Error: [TimesTen]TT0994: Data store connection terminated. Please reconnect. -- file "dbAPI.c", lineno 3132, procedure "sb_dbDisconnect()", ODBC SQL state = S1000, Additional Warning = 994
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01042: Detected invalid data store.
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01017: Error: [TimesTen]TT0994: Data store connection terminated. Please reconnect. -- file "db.c", lineno 14954, procedure "sbDbAppExit()", ODBC SQL state = S1000, Additional Warning = 994
20:28:58.95 Err : ORA: 7765: ora-7765-0001-bcStuff01042: Detected invalid data store.
20:28:59.00 Warn: : 4839: 11174/6000000000060650: Forced Disconnect /ttdata/ocs/data1
20:28:59.00 Warn: : 4839: 11174 ----------: Disconnecting from an old instance
20:28:59.38 Warn: : 4839: 11685/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:28:59.38 Warn: : 4839: 11685 ----------: Disconnecting from an old instance
20:28:59.84 Warn: : 4839: 11661/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:28:59.84 Warn: : 4839: 11661 ----------: Disconnecting from an old instance
20:28:59.89 Warn: : 4839: 9707/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:28:59.89 Warn: : 4839: 9707 ----------: Disconnecting from an old instance
20:29:00.15 Warn: : 4839: 11167/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:29:00.15 Warn: : 4839: 11167 ----------: Disconnecting from an old instance
20:29:00.15 Warn: : 4839: 11724/6000000000060650: Forced Disconnect /ttdata/ocs/data1
20:29:00.15 Warn: : 4839: 11724 ----------: Disconnecting from an old instance
20:29:00.92 Warn: : 4839: 11700/6000000000060650: Forced Disconnect /ttdata/ocs/data1
20:29:00.92 Warn: : 4839: 11700 ----------: Disconnecting from an old instance
20:29:00.92 Warn: : 4839: 12217/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:29:00.92 Warn: : 4839: 12217 ----------: Disconnecting from an old instance
20:29:01.03 Warn: : 4839: 11717/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:29:01.03 Warn: : 4839: 11717 ----------: Disconnecting from an old instance
20:29:01.37 Warn: : 4839: 11676/6000000000060650: Forced Disconnect /ttdata/ocs/data1
20:29:01.37 Warn: : 4839: 11676 ----------: Disconnecting from an old instance
20:29:01.49 Warn: : 4839: 11175 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=11
20:29:01.95 Warn: : 4839: 11693/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:29:01.95 Warn: : 4839: 11693 ----------: Disconnecting from an old instance
20:29:02.30 Warn: : 4839: 11669/6000000000311620: Forced Disconnect /ttdata/ocs/data1
20:29:02.30 Warn: : 4839: 11669 ----------: Disconnecting from an old instance
20:29:03.39 Warn: : 4839: 11725 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=11
20:29:03.97 Warn: : 4839: 11677 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=11
20:29:28.27 Warn: : 4839: 11527 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=11
20:29:31.86 Warn: : 4839: 11661 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=11
20:29:32.22 Warn: : 4839: 9707 exited while connected to data store '/ttdata/ocs/data1' shm 371461879 count=11
20:36:53.19 Warn: : 4839: 4843/60000000000c0020: Recovery started
21:08:35.34 Warn: : 4843: subd: Warning identified in [sub.c: line 3188]
21:08:35.34 Warn: : 4843: subd: (Warning 20100): TT20100: This connection required recovery due to an improper shutdown -- file "db.c", lineno 11566, procedure "sbDbConnect"
21:08:35.34 Warn: : 4843: file "db.c", lineno 11566, procedure "sbDbConnect"
21:08:35.35 Warn: : 4843: subd: connect trouble, rc 2, reason 20100
21:08:35.35 Warn: : 4843: Warn 20100: TT20100: This connection required recovery due to an improper shutdown -- file "db.c", lineno 11566, procedure "sbDbConnect"
21:08:39.54 Err : ORA: 28458: ora-28458-0009-raStuff09836: Unexpected row count. Expecting 1. Got 0.
21:55:13.91 Warn: ORA: 28458: ora-28458-0014-refresh10886: Autorefresh was not able to acquire lock on one of the cache groups, may be because a DDL transaction is open on the cache group. Autorefresh will be retried again
21:55:43.90 Warn: ORA: 28458: ora-28458-0014-refresh10886: Autorefresh was not able to acquire lock on one of the cache groups, may be because a DDL transaction is open on the cache group. Autorefresh will be retried again
21:56:16.35 Warn: ORA: 28458: ora-28458-0015-refresh10886: Autorefresh was not able to acquire lock on one of the cache groups, may be because a DDL transaction is open on the cache group. Autorefresh will be retried again
21:56:19.54 Warn: ORA: 28458: ora-28458-0015-refresh10886: Autorefresh was not able to acquire lock on one of the cache groups, may be because a DDL transaction is open on the cache group. Autorefresh will be retried again
21:56:22.76 Warn: ORA: 28458: ora-28458-0015-refresh10886: Autorefresh was not able to acquire lock on one of the cache groups, may be because a DDL transaction is open on the cache group. Autorefresh will be retried again
21:57:13.87 Warn: ORA: 28458: ora-28458-0014-refresh10886: Autorefresh was not able to acquire lock on one of the cache groups, may be because a DDL transaction is open on the cache group. Autorefresh will be retried again