k.logback-site.0.9.8.source-code.codes.html Maven / Gradle / Ivy
Logback FAQ
Logback error messages and their meanings
-
contextSelector cannot be null
-
The FileNamePattern option
must be set before using
TimeBasedRollingPolicy or
FixedWindowRollingPolicy
-
The File name option
must be set before
FixedWindowRollingPolicy
-
No remote host or address is set
for
SocketAppender
-
No remote port is set for
SocketAppender
-
No
Layout is set for appender
-
Specified number is not in proper int form, or
not expected format.
-
No
TriggeringPolicy was set for the
RollingFileAppender
-
No
RollingPolicy was set for the
RollingFileAppender
Error codes and their meanings
-
contextSelector cannot be null
-
-
The FileNamePattern option must be set before using
TimeBasedRollingPolicy or
FixedWindowRollingPolicy
-
The FileNamePattern option for both
TimeBasedRollingPolicy and
FixedWindowRollingPolicy is mandatory.
See the
FixedWindowRollingPolicy javadoc
for more information.
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-
The File name option must be set before
FixedWindowRollingPolicy
-
The File option is mandatory with
FixedWindowRollingPolicy. Moreover, the File option
must be set before the declaration configuring
FixedWindowRollingPolicy.
See the logback manual's chapter about
FixedWindowRollingPolicy
for more information.
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-
No remote host or address is set for
SocketAppender
-
A remote host or address is mandatory for SocketAppender.
You can specify the remote host in the configuration file
like this:
<appender name="SOCKET" class="ch.qos.logback.classic.net.SocketAppender">
...
<param name="remoteHost" value="127.0.0.1"></param>
...
</appender>
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No remote port is set for
SocketAppender
-
A remote port is mandatory for SocketAppender.
You can specify the remote port in the configuration file
like this:
<appender name="SOCKET" class="ch.qos.logback.classic.net.SocketAppender">
...
<param name="port" value="4560"></param>
...
</appender>
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-
No
Layout is set for
appender
-
A Layout is mandatory for
SMTPAppender . It allows the appender format the
logging events before sending the email. Two layouts are often
used with SMTPAppender :
PatternLayout and HTMLLayout .
You can specify the Layout in the
configuration file like this:
<appender name="SMTP" class="ch.qos.logback.classic.net.SMTPAppender">
...
<layout class="ch.qos.logback.classic.PatternLayout">
<param name="pattern" value="%-4relative [%thread] %-5level %class - %msg%n"></param>
</layout>
...
</appender>
You can see more examples in the
HTMLLayout javadoc
and the
PatternLayout javadoc
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-
Specified number is not in proper
int form, or not expected format.
-
When you specify the MaxFileSize to be used by the
SizeBasedRollingPolicy, logback expects a rather precise
format:
- The number has to be an integer
- You can add 'KB', 'MB' or 'GB' after the number.
Here are some correct values: 500KB, 15MB, 2GB.
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No
TriggeringPolicy was set
for the RollingFileAppender.
-
The RollingFileAppender must be set up with a
TriggeringPolicy. It permits the Appender to know
when the rollover must be activated.
To find more information about TriggeringPolicy
objects, please read the following javadocs:
Please note that the TimeBasedRollingPolicy
is a TriggeringPolicy and and
RollingPolicy at the same time.
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-
No
RollingPolicy was set
for the RollingFileAppender.
-
The RollingFileAppender must be set up with
a RollingPolicy. It permits the Appender to
know what to do when a rollover is requested.
To find more information about RollingPolicy
objects, please read the following javadocs:
Please note that the TimeBasedRollingPolicy is a
TriggeringPolicy and and RollingPolicy at
the same time.
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