Re: [Hawkular-dev] Memory-usage of Hawkular-services

Update [ tl;dr: good news ] Lukas provided me with "connection properties" for hsqldb that limit the memory usage and this seems stable. I have been running h-services since Friday afternoon (~40h) with 33 HawkFly feeds. Two heap dumps taken yesterday afternoon and this morning both show a stable heap size of 192M, so I think we are on the safe side here (with hsqldb, see also below). On top of just ingesting metrics, I have created poor mans Chaos Monkey that randomly stops and restarts a container every 5 minutes (parallel on 2 machines where my feeds live) to also stress the initial sync when a feeds is (re) connecting. I also had a (very small) number of alert triggers defined, that were firing when heap on a hawkfly is > 60k, which happened quite often. This was running during the last 36h, so is included in above heap metrics. The MBeans for hawkular metrics show an insertion rate of around 33 metrics/s , so a HawkFly corresponds to 1metric/s. About hsqldb: I am going to shut this down now and test with a h2-based instance, as h2 is already in WildFly and EAP and should be used instead of hsqldb. Some time next week I will also try to instrument HawkFly in a away that it automatically defines some alert triggers on startup. _______________________________________________ hawkular-dev mailing list hawkular-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/hawkular-dev