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Issue Type:
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![Bug]() Bug
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Affects Versions:
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1.0.13 |
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Assignee:
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Logback dev list
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Attachments:
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LogEvents.java |
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Components:
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logback-classic |
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Created:
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26/Jan/14 12:07 PM
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Description:
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On my machine I noticed that when sending multiple logging events to a SocketAppender, only the first event gets serialized and sent over the wire to a ServerSocketReceiver.
Debuging the code, I found out that for sending loggingEvents the SocketAppender uses either a SynchronousQueue or an ArrayBlockingQueue in order to make producer-consumer and send serialized events to the socket. That BlockingQueue does behave erratically on my machine.
To demonstrate that I included a small java test that will send 3 events to a SynchronousQueue and to an ArrayBlockingQueue and the output is this:
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- start test SynchronousQueue###
+ appender thread started
- send 3 events
- no more events to be sent
+ received event 1
+ appender thread ended
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- end test ###
- start test ArrayBlockingQueue[2]###
+ appender thread started
- send 3 events
- no more events to be sent
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- end test ###
- start test ArrayBlockingQueue[3]###
+ appender thread started
- send 3 events
- no more events to be sent
+ received event 1
+ received event 2
+ received event 3
+ appender thread ended
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- end test ###
This shows that the SynchronousQueue only process the first event and ArrayBlockingQueue[2] does not work at all.
Another test iteration:
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- start test SynchronousQueue###
+ appender thread started
- send 3 events
- no more events to be sent
+ received event 1
+ appender thread ended
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- end test ###
- start test ArrayBlockingQueue[2]###
+ appender thread started
- send 3 events
- no more events to be sent
+ received event 1
+ received event 2
+ appender thread ended
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- end test ###
- start test ArrayBlockingQueue[3]###
+ appender thread started
- send 3 events
- no more events to be sent
+ received event 1
+ received event 2
+ received event 3
+ appender thread ended
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- end test ###
This time the SynchronousQueue only processes the first event and the ArrayBlockingQueue[2] processes the first 2 events.
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Environment:
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Linux mobile-pc 3.10.17 #2 SMP Wed Oct 23 16:34:38 CDT 2013 x86_64 Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz GenuineIntel GNU/Linux
java version "1.7.0_45"
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Project:
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logback
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Priority:
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![Major]() Major
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Reporter:
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Andrei I
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