Asaf Erlich created LOG4J2-291:
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Summary: Failover appender doesn't fail over on JDBC appender error
Key: LOG4J2-291
URL: https://issues.apache.org/jira/browse/LOG4J2-291
Project: Log4j 2
Issue Type: Bug
Components: Appenders
Affects Versions: 2.0-beta7
Environment: Java version 1.6_045 and Oracle 11g 11.2.0.3.0 database
on 64-bit machine. It's running within eclipse but I don't think that should
make a difference.
Reporter: Asaf Erlich
Priority: Minor
When I configure a Failover appender using the jdbc appender as primary and
console/file as secondary if I get a database error It prints something to
System.err, but not to the file/console as expected.
How to recreate:
Make sure a jdbc appender works first.
Prepare a configuration similar to the one below:
<?xml version="1.0" encoding="UTF-8"?>
<configuration status="WARN">
<appenders>
<Jdbc name="HubManagerDatabaseLog" tablename="HUB_MANAGER_LOG">
<ConnectionFactory
class="com.somecompany.server.dal.DalCommon"
method="getDatabaseInstanceConnection"/>
<Column name="LOG_DATE" isEventTimestamp="true" />
<Column name="LOG_THREAD" pattern="%thread" />
<Column name="LOG_LEVEL" pattern="%level" />
<Column name="LOG_CLASS" pattern="%logger" />
<Column name="LOG_METHOD" pattern="%method" />
<Column name="LOG_MESSAGE" pattern="%message" />
<Column name="LOG_EXCEPTION" pattern="%exception" />
</Jdbc>
<FastRollingFile name="HubManagerFileLog"
filename="logs/HubManager.log" filePattern="logs/HubManager-%d{COMPACT}.log">
<PatternLayout pattern="%d [%thread] %-5level
%logger.%method - %message %exception%n" />
<Policies>
<SizeBasedTriggeringPolicy size="5MB"/>
</Policies>
<!-- <DefaultRolloverStrategy max="50"/> -->
</FastRollingFile>
<Console name="Console" target="SYSTEM_OUT">
<PatternLayout pattern="%d [%thread] %-5level
%logger.%method - %message %exception%n" />
</Console>
<Failover name="PrimaryDatabaseLoggingIfFailGoToFile"
primary="HubManagerDatabaseLog" suppressExceptions="false">
<Failovers>
<appender-ref ref="HubManagerFileLog"/>
</Failovers>
</Failover>
</appenders>
<loggers>
<logger name="com.exzac" level="DEBUG">
<appender-ref
ref="PrimaryDatabaseLoggingIfFailGoToFile"/>
<appender-ref ref="Console"/>
</logger>
<root level="DEBUG">
</root>
</loggers>
</configuration>
Run the following in a test java class that correctly has the above xml
configuration on the build path:
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class TestFailOverAppender {
private static final Logger LOGGER =
LogManager.getLogger(TestFailOverAppender.class);
public static void main(final String[] args) {
final String shortString = "FailOver Short message that should
go to database";
LOGGER.info(shortString);
final StringBuilder longString = new StringBuilder(shortString);
while (longString.length() < 4000) {
longString.append(shortString);
}
LOGGER.info(longString.toString());
LOGGER.info("FailOver short string after message");
}
}
I have tried setting suppressExceptions as false/true. I have tried replacing
the fileappender (which works normally) with just console instead and saw the
same result. This may or may not be related to another JIRA issue I found,
LOG4J2-126.
If there is simply something wrong with my configuration please let me know. I
tried following the documentation as much as possible. Thank you.
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