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Posted to gitbox@activemq.apache.org by GitBox <gi...@apache.org> on 2019/04/26 08:48:52 UTC

[GitHub] [activemq-artemis] franz1981 commented on issue #2645: ARTEMIS-2321 Paging scalability and GC improvement

franz1981 commented on issue #2645: ARTEMIS-2321 Paging scalability and GC improvement
URL: https://github.com/apache/activemq-artemis/pull/2645#issuecomment-486980042
 
 
   The most relevant one from a functional point of view is the non-blocking Page::read on page cache.
   I've maintained a separate commit for each improvement to make it easier to review them separately.
   Although not really a bug I've recently looked into many stacktraces showing many threads blocked on soft cache due to slow `Page::read`, causing the broker to be unresponsive and suicide itself right after:
   this change (together with https://github.com/apache/activemq-artemis/pull/2633) should make the broker less prone to became unresponsive under a storm of page cache misses.

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