Contribution request

2024-02-01 Thread Ahmad Alhour
Hello HBase,

I am Ahmad Alhour and I work at HubSpot, my HBase team is thinking of
proposing a contribution to the HBase repo and I'd like to be added as a
contributor in order to create, and get assigned to, JIRA tickets.

Regards,
Ahmad


[jira] [Created] (HBASE-28342) Decommissioned hosts should be rejected by the HMaster

2024-02-05 Thread Ahmad Alhour (Jira)
Ahmad Alhour created HBASE-28342:


 Summary: Decommissioned hosts should be rejected by the HMaster
 Key: HBASE-28342
 URL: https://issues.apache.org/jira/browse/HBASE-28342
 Project: HBase
  Issue Type: Bug
Reporter: Ahmad Alhour


We had an issue with a cluster, internally at HubSpot, where a decommissioned 
RegionServer was still being picked up by the HMaster. The host the 
RegionServer was living on was impaired, and we couldn't correctly kill the 
RegionServer, so the HMaster would periodically hear back from the host and 
remove it from its dead host's list.

We would like to implement a fix so that this doesn't happen. We're thinking of 
adding a boolean flag to the Decommission RegionServer Admin API that signifies 
ignoring the startcode of the servername, when the boolean is True the host 
will be rejected every time it comes back even if it had a different startcode.



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[jira] [Created] (HBASE-28503) Keep entries in draining ZNode when HMaster is configured to reject decommissioned hosts

2024-04-08 Thread Ahmad Alhour (Jira)
Ahmad Alhour created HBASE-28503:


 Summary: Keep entries in draining ZNode when HMaster is configured 
to reject decommissioned hosts
 Key: HBASE-28503
 URL: https://issues.apache.org/jira/browse/HBASE-28503
 Project: HBase
  Issue Type: Bug
Reporter: Ahmad Alhour


Last month we shipped a config feature to allow the HMaster to reject 
decommissioned hosts. After some testing internally at HubSpot, we discovered 
that the HMaster loses the entry of a decommissioned host from the draining 
ZNode when the RegionServer restarts or becomes dead.

Our proposal for this fix would be to keep entries in the draining ZNode as 
long as the HMaster is configured to reject decommissioned hosts.



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