https://issues.apache.org/bugzilla/show_bug.cgi?id=57002
Bug ID: 57002
Summary: SocketAppender freezes for about 15 seconds if the
server is not available
Product: Log4j
Version: 1.2.17
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Appender
Assignee: log4j-dev@logging.apache.org
Reporter: keitai.1...@gmail.com
I am using the SocketAppender to log the execution of scripts (short-lived Java
applications that fire some actions and die a few seconds later). I log the
activity of those scripts in files but I also want to send logs to Chainsaw, if
there is a Chainsaw running.
The problem is that if there is no Chainsaw running, the SocketAppender takes
some 15 seconds in the connect() method. The result is that my script takes 15
seconds waiting for a Chainsaw that does not exist and then some 4 seconds to
actually run.
Debug showed that the SocketAppender is taking 10 seconds on
address.getHostName(), in the following line:
http://grepcode.com/file/repo1.maven.org/maven2/log4j/log4j/1.2.17/org/apache/log4j/net/SocketAppender.java#230
This is just an error log and in this case I do not care about such error,
since logs are already going to a FileAppender.
So my suggestion is that the SocketAppender should have a new property to turn
off those error messages if they are not needed, as they may hurt performance.
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