Hi Ceki,
Thanks for the quick response. Attached is the xml file with the
configuration.
-greg
On Mon, Apr 11, 2016 at 12:48 PM, Ceki Gulcu <[email protected]> wrote:
>
> Can you please post your configuration file as well?
>
>
> On 4/11/2016 19:59, Greg Nitro wrote:
>
>> Hi,
>>
>> We are using Logback 1.1.3, and observed through jstack that quite a few
>> threads were blocked in OutputStreamAppender.subAppend waiting to obtain
>> the lock.
>>
>> This is a Play Framework app running in a dockerized environment,
>> configured to log to STDOUT and papertrail.
>>
>> Stack trace:
>>
>> "New I/O worker #23" #75 prio=5 os_prio=0 tid=0x00007f6fc9764000
>> nid=0xaa waiting for monitor entry [0x00007f6edd3e7000]
>> java.lang.Thread.State: BLOCKED (on object monitor)
>> at
>>
>> ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:211)
>> - waiting to lock <0x00000000ab0f8f50> (a
>> ch.qos.logback.core.spi.LogbackLock)
>> at
>>
>> ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:103)
>> at
>>
>> ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:88)
>> at
>>
>> ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:48)
>> at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:273)
>> at ch.qos.logback.classic.Logger.callAppenders(Logger.java:260)
>> at
>> ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:442)
>> at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:396)
>> at ch.qos.logback.classic.Logger.info
>> <http://ch.qos.logback.classic.Logger.info>(Logger.java:600)
>> at play.api.LoggerLike$class.info <http://class.info>(Logger.scala:93)
>> at play.api.Logger$.info(Logger.scala:167)
>>
>> Any suggestions on what may be going on here?
>>
>> Thanks
>> -greg
>>
>>
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<?xml version="1.0" encoding="UTF-8" ?>
<configuration scan="true" scanPeriod="3 seconds">
<statusListener class="ch.qos.logback.core.status.OnConsoleStatusListener"/>
<appender name="STDOUT"
class="ch.qos.logback.core.ConsoleAppender">
<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
<pattern>
%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n
</pattern>
</encoder>
</appender>
<appender name="PAPERTRAIL"
class="ch.qos.logback.classic.net.SyslogAppender">
<syslogHost>logs.papertrailapp.com</syslogHost>
<port>44494</port>
<facility>USER</facility>
<suffixPattern>%d{HH:mm:ss,SSS} [%thread] %-5level %logger{32} - %msg%n</suffixPattern>
</appender>
<root>
<level value="INFO"/>
<appender-ref ref="STDOUT"/>
<appender-ref ref="PAPERTRAIL" />
</root>
<logger name="redis.actors.RedisClientActor" level="WARN"/>
</configuration>
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