enabling debug logging

[Nicholas McKoy]

Hi, 

Quick question.

Using a realtime node and kafka 8 firehose to ingest a ton of events. seems like all of them are unparseable and im not sure why? i get this error:

ERROR [MonitorScheduler-0] io.druid.segment.realtime.RealtimeMetricsMonitor - [54,704] Unparseable events! Turn on debug logging to see exception stack trace.

I have these lines in my realtimes runtime.properties:

druid.monitoring.monitors=["io.druid.segment.realtime.RealtimeMetricsMonitor"] 

druid.emitter=logging

druid.emitter.logging.logLevel=info

I do see logs but I am not able to see the exception from this error. How can i enable logging to see this exception?

Thanks,

[Nicholas McKoy]

anyone?

[charles.allen]

You'll want to specify a log4j2.xml. There's one in the druid repository for debugging on EVERYTHING in druid, you may want to change the name="io.druid" to name="io.druid.segment.realtime" if the log is too chatty and you're using the realtime node.

[Himanshu]

http://druid.io/docs/0.8.0/configuration/logging.html

-- Himanshu

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[Nicholas McKoy]

Charles' suggestion is what worked for me. Thanks guys.

[Mark Shannon]

How exactly do you do this?

On Monday, September 14, 2015 at 11:13:00 AM UTC-4, charles.allen wrote:

[Gian Merlino]

Hi Mark,

You can edit the log4j2.xml that is bundled in conf/_common/.

Gian

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[Umar M-Hamid]

Hi charles! I search log4j2.xml and found it under _common/ but could not find property "name=io.druid" except 

<Configuration status="WARN">

    <Appenders>

        <Console name="Console" target="SYSTEM_OUT">

            <PatternLayout pattern="%d{ISO8601} %p [%t] %c - %m%n"/>

        </Console>

    </Appenders>

    <Loggers>

        <Root level="info">

            <AppenderRef ref="Console"/>

        </Root>

    </Loggers>

</Configuration>

dont know how to resolve my problem

[Daniel Hopins]

1. You would need to add an entry to the file:
2. <Logger name="io.druid" level="trace">
3. <AppenderRef ref="Console"/>
4. </Logger>

Giving u file that looks like: (for level you can use trace,info,debug,warn)

<Configuration status="WARN">

    <Appenders>

        <Console name="Console" target="SYSTEM_OUT">

            <PatternLayout pattern="%d{ISO8601} %p [%t] %c - %m%n"/>

        </Console>

    </Appenders>

    <Loggers>

1. <Logger name="io.druid" level="debug">
2. <AppenderRef ref="Console"/>
3. </Logger>

        <Root level="info">

            <AppenderRef ref="Console"/>

        </Root>

    </Loggers>

</Configuration>