mirror of
https://github.com/berkeleydb/je.git
synced 2024-11-15 01:46:24 +00:00
110 lines
7.3 KiB
HTML
110 lines
7.3 KiB
HTML
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
|
||
|
|
<html>
|
||
|
|
|
||
|
|
<head>
|
||
|
|
<title>Berkeley DB Java Edition Trace Logging</title>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
|
||
|
|
<p align=center>
|
||
|
|
<img src="images/Oracle_BerkeleyDB_small.png" alt="Oracle">
|
||
|
|
</p>
|
||
|
|
|
||
|
|
<h3>Trace logging in Berkeley DB Java Edition</h3>
|
||
|
|
JE uses the <code><a
|
||
|
|
href="http://download.oracle.com/javase/6/docs/api/java/util/logging/package-summary.html">java.util.logging</a></code>
|
||
|
|
package to log operations and trace
|
||
|
|
messages. This information can be particularly useful when running a
|
||
|
|
replicated JE High Availability application in order to monitor your
|
||
|
|
application's activities.
|
||
|
|
<p>
|
||
|
|
The default output lists replication node start up and shutdown
|
||
|
|
operations. Initial configuration problems should show up
|
||
|
|
during the startup operation. You are strongly advised to run your
|
||
|
|
production application with this level of logging.
|
||
|
|
<p>
|
||
|
|
Note that an application java.util.logging.Handler may be specified for
|
||
|
|
each environment through EnvironmentConfig.setLoggingHandler();
|
||
|
|
<p>
|
||
|
|
See the <a href="GettingStartedGuide/managelogging.html">Logging</a>
|
||
|
|
section in <a href="GettingStartedGuide/administration.html">
|
||
|
|
Chapter 12, Administering Berkeley DB Java Edition Applications
|
||
|
|
</a> in the <a href="GettingStartedGuide/index.html">Getting Started Guide</a> for
|
||
|
|
details on logging configuration and locations.
|
||
|
|
<h4>Example of logging output</h4>
|
||
|
|
|
||
|
|
The first column is the date in <year>-<month>-<day>
|
||
|
|
format. Times are given in the UTC timezone.<br><br>
|
||
|
|
The default information when a master node (Node 1) comes up:
|
||
|
|
<pre>
|
||
|
|
2009-09-17 17:36:22:421 UTC INFO [Node 1] Started ServiceDispatcher. HostPort=localhost:5500
|
||
|
|
2009-09-17 17:36:22:521 UTC INFO [Node 1] Refreshed 0 monitors.
|
||
|
|
2009-09-17 17:36:22:529 UTC INFO [Node 1] Current group size: 0
|
||
|
|
2009-09-17 17:36:22:530 UTC INFO [Node 1] New node Node 1(-1) unknown to rep group
|
||
|
|
2009-09-17 17:36:22:537 UTC INFO [Node 1] Nascent group. Node 1 is master by virtue of being the first node.
|
||
|
|
2009-09-17 17:36:22:571 UTC INFO [Node 1] Successfully added node: Node 1(1) HostPort=localhost:5500 [ELECTABLE]
|
||
|
|
2009-09-17 17:36:22:572 UTC INFO [Node 1] Refreshed 0 monitors.
|
||
|
|
2009-09-17 17:36:22:580 UTC INFO [Node 1] Node Node 1 started
|
||
|
|
2009-09-17 17:36:22:593 UTC INFO [Node 1] Feeder manager accepting requests.
|
||
|
|
</pre>
|
||
|
|
|
||
|
|
The master's perspective when a replica (Node 2) wants to be added, then subsequently joins and syncs up.
|
||
|
|
<pre>
|
||
|
|
2009-09-17 17:36:22:676 UTC INFO [Node 1] Feeder accepted connection from java.nio.channels.SocketChannel[connected local=/127.0.0.1:5500 remote=/127.0.0.1:59415]
|
||
|
|
2009-09-17 17:36:22:710 UTC INFO [Node 1] Feeder-replica handshake start
|
||
|
|
2009-09-17 17:36:22:729 UTC INFO [Node 1] Successfully added node: Node 2(2) HostPort=localhost:5501 [ELECTABLE]
|
||
|
|
2009-09-17 17:36:22:730 UTC INFO [Node 1] Refreshed 0 monitors.
|
||
|
|
2009-09-17 17:36:22:732 UTC INFO [Node 1] Feeder-replica Node 2 handshake completed.
|
||
|
|
2009-09-17 17:36:22:735 UTC INFO [Node 1] Feeder-replica Node 2 syncup started. Feeder range: first=1 last=14 sync=14 txnEnd=14
|
||
|
|
2009-09-17 17:36:22:747 UTC INFO [Node 1] Feeder-replica Node 2 start stream at VLSN: 1
|
||
|
|
2009-09-17 17:36:22:748 UTC INFO [Node 1] Feeder-replica Node 2 syncup ended. Elapsed time: 13ms
|
||
|
|
2009-09-17 17:36:22:750 UTC INFO [Node 1] Feeder output thread for replica Node 2 started at VLSN: 1 Master at: 14 VLSN delta: 13 Socket: (Node 2(2))java.nio.channels.SocketChannel[connected local=/127.0.0.1:5500 remote=/127.0.0.1:59415]
|
||
|
|
</pre>
|
||
|
|
A replica (Node 5) comes up. We can tell who the master (Node 1) is:
|
||
|
|
<pre>
|
||
|
|
2009-09-17 17:36:23:179 UTC INFO [Node 5] Started ServiceDispatcher. HostPort=localhost:5504
|
||
|
|
2009-09-17 17:36:23:181 UTC INFO [Node 5] Refreshed 0 monitors.
|
||
|
|
2009-09-17 17:36:23:182 UTC INFO [Node 5] Current group size: 0
|
||
|
|
2009-09-17 17:36:23:182 UTC INFO [Node 5] New node Node 5(-1) unknown to rep group
|
||
|
|
2009-09-17 17:36:23:186 UTC INFO [Node 5] New node Node 5 located master: Node 1(1)
|
||
|
|
2009-09-17 17:36:23:188 UTC INFO [Node 5] Node Node 5 started
|
||
|
|
2009-09-17 17:36:23:188 UTC INFO [Node 5] Replica loop started with master: Node 1(1)
|
||
|
|
2009-09-17 17:36:23:192 UTC INFO [Node 5] Replica-feeder handshake start
|
||
|
|
2009-09-17 17:36:23:274 UTC INFO [Node 5] Replica-feeder Node 1 handshake completed.
|
||
|
|
2009-09-17 17:36:23:274 UTC INFO [Node 5] Replica-feeder Node 1 syncup started. Replica range: first=-1 last=-1 sync=-1 txnEnd=-1
|
||
|
|
2009-09-17 17:36:23:275 UTC INFO [Node 5] Replica-feeder Node 1 start stream at VLSN: 1
|
||
|
|
2009-09-17 17:36:23:276 UTC INFO [Node 5] Replica-feeder Node 1 syncup ended. Elapsed time: 2ms
|
||
|
|
2009-09-17 17:36:23:280 UTC INFO [Node 5] Replica initialization completed. Replica VLSN: -1 Heartbeat master commit VLSN: 29 VLSN delta: 30
|
||
|
|
</pre>
|
||
|
|
A master node (node 1) is shutting down and is closing connections to its replicas. (Nodes 2, 3, 4, 5)
|
||
|
|
<pre>
|
||
|
|
2009-09-17 17:36:39:502 UTC INFO [Node 1] Shutting down node Node 1(1)
|
||
|
|
2009-09-17 17:36:39:502 UTC INFO [Node 1] Elections shutdown initiated
|
||
|
|
2009-09-17 17:36:39:504 UTC INFO [Node 1] Elections shutdown completed
|
||
|
|
2009-09-17 17:36:39:504 UTC INFO [Node 1] Feeder manager soft shutdown.
|
||
|
|
2009-09-17 17:36:39:505 UTC INFO [Node 1] Shutting down feeder for replica Node 4 write time: 214ms Avg write time: 19us
|
||
|
|
2009-09-17 17:36:40:502 UTC INFO [Node 1] Feeder output for replica Node 4 shutdown. feeder VLSN: 11,126 currentCommitVLSN: 11,025
|
||
|
|
2009-09-17 17:36:40:503 UTC INFO [Node 1] Thread[Feeder Output for Node 4,5,] has exited.
|
||
|
|
2009-09-17 17:36:40:503 UTC INFO [Node 1] Thread[Feeder Input for Node 4,5,] has exited.
|
||
|
|
2009-09-17 17:36:40:504 UTC INFO [Node 1] Shutting down feeder for replica Node 2 write time: 212ms Avg write time: 19us
|
||
|
|
2009-09-17 17:36:41:503 UTC INFO [Node 1] Feeder output for replica Node 2 shutdown. feeder VLSN: 11,126 currentCommitVLSN: 11,025
|
||
|
|
2009-09-17 17:36:41:504 UTC INFO [Node 1] Thread[Feeder Output for Node 2,5,] has exited.
|
||
|
|
2009-09-17 17:36:41:504 UTC INFO [Node 1] Thread[Feeder Input for Node 2,5,] has exited.
|
||
|
|
2009-09-17 17:36:41:504 UTC INFO [Node 1] Shutting down feeder for replica Node 3 write time: 230ms Avg write time: 20us
|
||
|
|
2009-09-17 17:36:42:504 UTC INFO [Node 1] Feeder output for replica Node 3 shutdown. feeder VLSN: 11,126 currentCommitVLSN: 11,025
|
||
|
|
2009-09-17 17:36:42:504 UTC INFO [Node 1] Thread[Feeder Output for Node 3,5,] has exited.
|
||
|
|
2009-09-17 17:36:42:505 UTC INFO [Node 1] Thread[Feeder Input for Node 3,5,] has exited.
|
||
|
|
2009-09-17 17:36:42:505 UTC INFO [Node 1] Shutting down feeder for replica Node 5 write time: 219ms Avg write time: 19us
|
||
|
|
2009-09-17 17:36:43:502 UTC INFO [Node 1] Feeder output for replica Node 5 shutdown. feeder VLSN: 11,126 currentCommitVLSN: 11,025
|
||
|
|
2009-09-17 17:36:43:503 UTC INFO [Node 1] Thread[Feeder Output for Node 5,5,] has exited.
|
||
|
|
2009-09-17 17:36:43:503 UTC INFO [Node 1] Thread[Feeder Input for Node 5,5,] has exited.
|
||
|
|
2009-09-17 17:36:43:503 UTC INFO [Node 1] Feeder manager exited. CurrentCommit VLSN: 11,025
|
||
|
|
2009-09-17 17:36:43:503 UTC INFO [Node 1] RepNode main thread shutting down.
|
||
|
|
2009-09-17 17:36:43:504 UTC INFO [Node 1] RepNode main thread: DETACHED Node 1(1) exited.
|
||
|
|
2009-09-17 17:36:43:504 UTC INFO [Node 1] ServiceDispatcher shutdown starting. HostPort=localhost:5500 Registered services: []
|
||
|
|
2009-09-17 17:36:43:505 UTC INFO [Node 1] ServiceDispatcher shutdown completed. HostPort=localhost:5500
|
||
|
|
2009-09-17 17:36:43:505 UTC INFO [Node 1] Node 1(1) shutdown completed.
|
||
|
|
</pre>
|
||
|
|
</body>
|
||
|
|
</html>
|