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https://issues.apache.org/jira/browse/OAK-1833?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13999780#comment-13999780
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Michael Dürig commented on OAK-1833:
------------------------------------
At https://svn.apache.org/r1595186 I moved the session related counters back
from {{SessionDelegate}} to {{SessionStats}} while at the same time trying to
keep the optimisations introduced with OAK-1418. This allowed me to remove the
problematic {{SessionDelegate}} reference in {{SessionStats}}.
With this fix {{LoginLogoutUserTest}} reports:
{noformat}
# LoginLogoutUserTest C min 10% 50% 90% max
N
Oak-Tar 1 747 751 770 890 1092
77
{noformat}
in contrast to
{noformat}
# LoginLogoutUserTest C min 10% 50% 90% max
N
Oak-Tar 1 880 881 918 26299 28039
11
{noformat}
before.
> Logging in and out many sessions leads to high memory consumption
> ------------------------------------------------------------------
>
> Key: OAK-1833
> URL: https://issues.apache.org/jira/browse/OAK-1833
> Project: Jackrabbit Oak
> Issue Type: Bug
> Components: jcr
> Reporter: Michael Dürig
> Assignee: Michael Dürig
> Fix For: 1.1
>
>
> See http://markmail.org/message/b65g2suyhhbhnefw for the report and
> {{org.apache.jackrabbit.oak.benchmark.LoginLogoutUserTest}} demonstrating the
> issue. Running that benchmark with 128M heap leads to memory pressure and the
> test performing an order of magnitude worse than when running with 1G.
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