Brandon Goodin created LOG4J2-1769:
--------------------------------------
Summary: JsonLayout Throwing Exceptions And Producing Broken Logs
Key: LOG4J2-1769
URL: https://issues.apache.org/jira/browse/LOG4J2-1769
Project: Log4j 2
Issue Type: Bug
Components: Layouts
Affects Versions: 2.7
Environment: All Platforms
Reporter: Brandon Goodin
In a multithreaded environment JsonLayout is throwing exceptions and producing
fragmented logs. We were able to produce a test that demonstrates this. The
following exceptions and broken logging are being seen.
{code:title=IllegalArgumentException}
2017-01-06 16:57:59,173 Thread-98 ERROR An exception occurred processing
Appender stdout java.lang.IllegalArgumentException
at java.nio.Buffer.position(Buffer.java:244)
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:191)
at
org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
at
org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
at
org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
at
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
at
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
at
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
at
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
at
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
at
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
at
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
at
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
at
org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
at
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
at
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1988)
at
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1960)
at
org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1297)
at
org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:54)
{code}
{code:title=BufferOverflowException}
2017-01-06 16:57:59,194 Thread-99 ERROR An exception occurred processing
Appender stdout java.nio.BufferOverflowException
at java.nio.HeapByteBuffer.put(HeapByteBuffer.java:189)
at
org.apache.logging.log4j.core.layout.AbstractLayout.writeTo(AbstractLayout.java:179)
at
org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:160)
at
org.apache.logging.log4j.core.layout.AbstractLayout.encode(AbstractLayout.java:36)
at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.directEncodeEvent(AbstractOutputStreamAppender.java:176)
at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.tryAppend(AbstractOutputStreamAppender.java:169)
at
org.apache.logging.log4j.core.appender.AbstractOutputStreamAppender.append(AbstractOutputStreamAppender.java:160)
at
org.apache.logging.log4j.core.config.AppenderControl.tryCallAppender(AppenderControl.java:156)
at
org.apache.logging.log4j.core.config.AppenderControl.callAppender0(AppenderControl.java:129)
at
org.apache.logging.log4j.core.config.AppenderControl.callAppenderPreventRecursion(AppenderControl.java:120)
at
org.apache.logging.log4j.core.config.AppenderControl.callAppender(AppenderControl.java:84)
at
org.apache.logging.log4j.core.config.LoggerConfig.callAppenders(LoggerConfig.java:447)
at
org.apache.logging.log4j.core.config.LoggerConfig.processLogEvent(LoggerConfig.java:432)
at
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:416)
at
org.apache.logging.log4j.core.config.LoggerConfig.log(LoggerConfig.java:402)
at
org.apache.logging.log4j.core.config.AwaitCompletionReliabilityStrategy.log(AwaitCompletionReliabilityStrategy.java:63)
at org.apache.logging.log4j.core.Logger.logMessage(Logger.java:146)
at
org.apache.logging.log4j.spi.AbstractLogger.logMessageSafely(AbstractLogger.java:2091)
at
org.apache.logging.log4j.spi.AbstractLogger.logMessage(AbstractLogger.java:1971)
at
org.apache.logging.log4j.spi.AbstractLogger.logIfEnabled(AbstractLogger.java:1829)
at
org.apache.logging.log4j.spi.AbstractLogger.info(AbstractLogger.java:1287)
at
org.apache.logging.log4j.JSONLayoutIssuesTest$LoggingThread.run(JSONLayoutIssuesTest.java:53)
{code}
{code:title=BrokenLogs}
{"timeMillis":1483743479195,"thread":"Thread-49","level":"INFO","loggerName":"org.apache.logging.log4j.JSONLayoutIssuesTest","message":"This
is simple
text.","endOfBatch":false,"loggerFqcn":"org.apache.logging.log4j.spi.AbstractLogger","threadId":61,"threadPriority":5}
{"timeMillis":1483743479195,"thread":"Thread-42","level":"INFO","loggerName":"org.apache.logging.log4j.JSONLayoutIssuesTest","message":"This
is simple
text.","endOfBatch":false,"loggerFqcn":"org.apache.logging.log4j.spi.AbstractLogger","threadId":54,"threadPriority":5}
hreadPriority":5}
{code}
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