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From Tim Bain <tb...@alumni.duke.edu>
Subject Best way to write a process's clientId and connectionId to the logs
Date Tue, 18 Nov 2014 20:58:59 GMT
One problem we've run across while debugging ActiveMQ problems after the
fact (after the broker and clients have all been cycled) is that it's often
difficult to figure out which client was the one that corresponded to a
particular error in the broker's logs.  The broker's log file will
generally tell us the clientId or connectionId (I forget which off the top
of my head) of the problematic client, and from that we can back out the
hostname, but if many clients are running on that host we generally can't
figure out which one it was.

I'd like a way to automatically write a client's clientId and connectionId
in that client's log file, so you could just grep for that ID in the
various client logs and figure out quickly which one had the problem.  I've
discovered that I can get that information from the FailoverTransport (for
reconnections, but not for the original connection) by setting the Log4j
logger level to TRACE for activemq.transport.failover.FailoverTransport,
but doing that also spams our logs with a bunch of other TRACE or DEBUG
output that we don't want.

Is there another way to get the clientId and connectionId into the client's
logs?

Tim

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