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Create a single ActiveMQ session per connection, to prevent OOM errors #205

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Create a single ActiveMQ session per connection, to prevent OOM errors #205

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Commits on Aug 12, 2022

  1. Use a single JMS Session per connection, rather than one per event 

    Each created Session spawns a thread to handle message transmission.
Prior to this change, each change resulted in a new thread being
created. If the ChangeLog had a large number of pending changes
(10s of thousands), memory starvation occurred. This change serializes
message transmission
    @stevehillman
    stevehillman committed Aug 12, 2022
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Commits on Aug 26, 2022

  1. Merge branch 'GROUPER_2_6_BRANCH' of github.com:stevehillman/grouper … 

    …into GROUPER_2_6_BRANCH
    @stevehillman
    stevehillman committed Aug 26, 2022
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  2. Use a single shared session per ActiveMQ connection by default 

    - The previous behaviour used a separate session in the ActiveMQ client
  library for each message being sent. Each session spawns two threads. If
  a Change Log update involved too many changes, memory exhaustion could
  occur.

The old behaviour can be restored by setting

  grouper.messaging.system.activeMqMessaging.useSharedSession = false

in grouper.client.properties
    @stevehillman
    stevehillman committed Aug 26, 2022
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Commits on Aug 30, 2022

  1. Merge branch 'Internet2:GROUPER_2_6_BRANCH' into GROUPER_2_6_BRANCH

    @stevehillman
    stevehillman authored Aug 30, 2022
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  2. Remove feature-flag code for shared session

    @stevehillman
    stevehillman committed Aug 30, 2022
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  3. Merge branch 'GROUPER_2_6_BRANCH' of github.com:stevehillman/grouper … 

    …into GROUPER_2_6_BRANCH
    @stevehillman
    stevehillman committed Aug 30, 2022
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Commits on Dec 1, 2022

  1. Fixes to make Ant happy

    @stevehillman
    stevehillman committed Dec 1, 2022
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Commits on Apr 26, 2023

  1. Merge branch 'GROUPER_2_6_BRANCH' of github.com:stevehillman/grouper … 

    …into GROUPER_2_6_BRANCH
    @stevehillman
    stevehillman committed Apr 26, 2023
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