Request logs and flex

[Vinay Chitlangia]

Hi,

Once we moved to non-compat flex, the logs emitted as part of the request are coming out in stdout stream instead of with part of the request (all logs

with a particular request, used to come together in the request logs of compat runtime).

Attached is the screenshot of the logs. The various WARNING logs are those written as part of the request (which is the first line).

Notice that the logs are not bundled together with the request.

The dockerfile we are using is:

FROM gcr.io/google-appengine/jetty9

RUN apt-get -q update && \

    apt-get -y -q --no-install-recommends -t jessie-backports install openjdk-8-jdk && \

    apt-get clean && \

    rm /var/lib/apt/lists/*_*

ADD backend.war $JETTY_BASE/webapps/root.war

WORKDIR $JETTY_BASE

RUN java -jar $JETTY_HOME/start.jar --approve-all-licenses \

 --add-to-startd=jmx,stats,hawtio,requestlog \

 && chown -R jetty:jetty $JETTY_BASE

And finally the app.yaml looks like:

runtime: custom

env: flex

handlers:

- url: /.*

  script: this field is required, but ignored

  secure: always

resources:

  cpu: 2

  memory_gb: 10

automatic_scaling:

  min_num_instances: 1

  max_num_instances: 10

  cool_down_period_sec: 120

  cpu_utilization:

    target_utilization: 0.5

env_variables:

  USE_GAE_MEMCACHE: 1

[Justin Beckwith]

Greetings folks!

With the non-compat runtimes in the flexible environment, we rely on client logging libraries to make request correlation work.  

https://github.com/GoogleCloudPlatform/google-cloud-java/tree/master/google-cloud-logging

Amir / Rajeev / Les should be able to help point you in the right direction from here :) 

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Justin Beckwith | Google Cloud Platform | @justinbeckwith | http://jbeckwith.com

[Jisha Abubaker]

Hi Vinay

To get started, I'd recommend looking at this section on Stackdriver logging using java.util.logging

https://github.com/GoogleCloudPlatform/google-cloud-java/tree/master/google-cloud-logging#add-a-stackdriver-logging-handler-to-a-logger

It's on the page that Justin just shared. 

We're also in the process of adding support with more logging frameworks like Slf4j.

Thanks

Jisha

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[Vinay Chitlangia]

Thanks for the responses.

https://github.com/GoogleCloudPlatform/google-cloud-java/tree/master/google-cloud-logging#add-a-stackdriver-logging-handler-to-a-logger

The link that you mention, says that logging can be setup using logging.properties. Wondering in what directory should logging.properties reside in the flex setup.

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