https://jira.opendaylight.org This file is an XML representation of an issue en-us 8.20.10 820010 22-06-2022 https://jira.opendaylight.org/browse/CONTROLLER-1954 controller <p>Heap analysis shows that io.atomix.storage.journal.FileChannelJournalSegmentWriter ends up allocating HeapByteBuffers with twice the size of maximum entry size. In our default full install, this means ODL ends up eating 306MiB of heap off the bat.</p> <p>We also have a problem where the maximum entry size is limited, whereas we can have rather huge entries stored in the journal.</p> <p>Introduce a revised journal version, which will seamlessly migrate when attached, so that we perform entry chunking – i.e. lower the maximum entry to something around 128KiB and split larger Akka journal entries into multiple file entries.</p> CONTROLLER-1954

Lower akka-segmented-journal memory footprint

Improvement High Resolved Done Robert Varga Robert Varga pt Fri, 10 Jul 2020 10:57:04 +0000 Thu, 6 May 2021 16:00:53 +0000 Thu, 6 May 2021 16:00:52 +0000 4.0.0 3.0.8 clustering 0 2 <p>Rather than increasing complexity, let's just switch to memory-mapped files by default, which solves the heap problem.</p> Development Rank 0|i03tkf: