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From Lionel van den Berg <>
Subject Out of memory exception
Date Fri, 06 Apr 2018 06:22:46 GMT

We're still investigating, turning up logging etc. but we've come across
two issues:

1. At our site deployment with default memory usage (1gb) AMQ threw an out
of memory exception. We couldn't determine exactly why, whether it was
cumulative memory use of a peak memory use. We have around 50 connections
and perhaps a few thousand topics with quite a lot of data, perhaps
4GB/hour going in and 15 x that much going out.

2. In our lab we increased memory available to 4Gb by modifying env (see
attached) and turn up logging (also see attached), within about 5 hours AMQ
had reach 5Gb and hung without an exception. Unfortunately the system
wasn't being monitored and apparently the logs weren't any good because
they'd rolled over too many times.

I realise the information is a little vague at this stage so I'm only
looking for pointers on where to look.

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