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<p dir="auto">Hey,</p>
<p dir="auto">I ran this over night with 24 feeds and the patch to<br>
HAM wrt alert forwarding and it was stable. Had to <br>
stop it now, but will try to pick up where I left today.<br>
Anyway: good sign. </p>
<p dir="auto">Thanks to all</p>
<p dir="auto">On 14 Oct 2016, at 11:55, Heiko W.Rupp wrote:</p>
<blockquote style="border-left:2px solid #777; color:#777; margin:0 0 5px; padding-left:5px">
<p dir="auto">On 11 Oct 2016, at 8:42, Heiko W.Rupp wrote:</p>
<blockquote style="border-left:2px solid #777; color:#999; margin:0 0 5px; padding-left:5px; border-left-color:#999">
<p dir="auto">Hey,</p>
<p dir="auto">tl;dr: we need to investigate heap usage - especially in the case of compression<br>
kicking in - it looks like there could be a memory leak. Compression timing seems<br>
mostly ok.</p>
</blockquote>
<p dir="auto">Looks like we are making some progress</p>
<ul>
<li>metric forwarding to alerts seems to do some memory-wise
heavy work, that can be reduced (hwkmetrics-507 and -508 and hawkular-1130 iirc)</li>
<li>internal hsqldb uses a lot of memory
<ul>
<li>that is "only" a developer concern</li>
</ul></li>
<li>using postgres does not exhibit the memory usage for caching as does hsqldb, but
<ul>
<li>the postgres driver in inventory (v...1201) seems to use finalizers too much
<ul>
<li>we are investigating to use a newer driver that may perform better</li>
</ul></li>
</ul></li>
</ul>
<p dir="auto">I just replaced in a local copy inventory 0.20 with 0.19.3 and this seems to be<br>
smoother sailing - a lot less finalizers that also hold less memory.</p>
<p dir="auto">I did try to run with -XX:+UseStringDeduplication which requires -XX:+UseG1GC, but<br>
according to MAT it did not have an effect for me. We may want to look into<br>
string interning for the future like we did in JON.</p>
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<p dir="auto">hawkular-dev mailing list<br>
<a href="mailto:hawkular-dev@lists.jboss.org" style="color:#777">hawkular-dev@lists.jboss.org</a><br>
<a href="https://lists.jboss.org/mailman/listinfo/hawkular-dev" style="color:#777">https://lists.jboss.org/mailman/listinfo/hawkular-dev</a></p>
</blockquote>
<p dir="auto">-- <br>
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