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https://issues.apache.org/jira/browse/HDDS-1209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16788166#comment-16788166
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Aravindan Vijayan edited comment on HDDS-1209 at 3/8/19 7:19 PM:
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There can be a case where we have 2 available pipelines (P1 & P2) in
allocateBlock after filtering, and say we pick P1 (random). If the containers
in P1 are in excluded containers list, according to current logic, we decide to
create a new container in that pipeline. Is that action preferred over using
the other available pipeline (P2)?
was (Author: avijayan):
There can be a case where we have 2 available pipelines (P1 & P2) in
allocateBlock after filtering, and say we pick P1 (random). If the the
containers in P1 are in excluded containers list, according to current logic,
we decide to create a new container in that pipeline. Is that action preferred
over using the other available pipeline (P2)?
> Fix the block allocation logic in SCM when client wants to exclude all
> available open containers in a chosen pipeline
> ---------------------------------------------------------------------------------------------------------------------
>
> Key: HDDS-1209
> URL: https://issues.apache.org/jira/browse/HDDS-1209
> Project: Hadoop Distributed Data Store
> Issue Type: Improvement
> Reporter: Shashikant Banerjee
> Assignee: Aravindan Vijayan
> Priority: Major
> Attachments: HDDS-1209-000.patch, HDDS-1209-001.patch
>
>
> As per [~nandakumar131] comments here in HDDS-726 ,
> https://issues.apache.org/jira/browse/HDDS-726?focusedCommentId=16779554&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16779554
> We may end up in case in SCM where all the open containers available in a
> chosen pipeline are there in the exclude list provided by client during
> allocate block call. In such case, blockMamager in SCM will run in an
> infinite loop. This needs to be fixed as a part of this jira.
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