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Status Not under consideration
Workspace Storage Discover
Created by Guest
Created on Jun 14, 2023

RELATED IDEAS

Make connmgr pod persists its memory state to avoid stalled scans

When the connmgr pod in OpenShift is restarted while a scan is running but not fully indexed into DB2 yet we're stuck in a loop. A newly started connmgr pod does not know about its previuos scans hence it can not commit a scan when asked by the consumer pods.


If we understand it correctly, this information is kept in the runtime memory of the connmgr pod only. Our idea is to persist this information somewhere (maybe Kafka, etcd database, ...) so a restarted connmgr pod can restore its previous state. This would avoid being stuck in this loop:


consumer pod -> restarted connmgr: "please commit this scan"

restarted connmgr pod -> consumer: "I don't know this scan"

consumer pod -> restarted connmgr: "1 second later: please commit this scan"

...


The goal is to have a resilient system in which each component can be restarted anytime without causing issues like the loop above.


Thanks


Idea priority High
  • Admin
    THOMAS O'BRIEN
    Reply
    |     Jun 28, 2023

    The design for connection manager is stateless. We recomend the graceful shutdown procedure based on the instructions shared recently with you

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