[GitHub] [geode] jvarenina opened a new pull request, #7623: GEODE-10215: Document warning for parallel gws

[GitBox <gi...@apache.org>]

jvarenina opened a new pull request, #7623:
URL: https://github.com/apache/geode/pull/7623

   When you configure a parallel gateway-sender on a partitioned region,
   the parallel gateway-sender queue is created as a collocated region of
   the primary data partition region. Because of that, the set of primary
   buckets IDs of the data region is the same as the primary bucket IDs
   of the queue region. The aforementioned is also valid for the
   secondary buckets. When you alter the region to remove the
   gateway-sender, you only remove the connection between the region and
   the gateway-sender. Still, the parallel gateway-sender queue region
   remains on servers. Recreating the region again with the same gateway
   sender results in new data buckets distributed differently across the
   servers. The same server will create the queue bucket after the
   colocated region bucket, but the previous queue buckets will remain in
   the system. The newly created queue bucket will be marked as a
   secondary even though its accompanying region bucket is primary.
   Therefore some events will not replicate to the remote site.
   
   The solution is to update the documentation with a warning that the
   removed parallel gateway-sender should not be used on the new region
   that is not colocated with the previously attached region.
   
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[GitHub] [geode] davebarnes97 merged pull request #7623: GEODE-10215: Document warning for parallel gws

[GitBox <gi...@apache.org>]

davebarnes97 merged PR #7623:
URL: https://github.com/apache/geode/pull/7623


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