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Francis Liu commented on HBASE-11546: ------------------------------------- {quote} Let's take a step back. Why is this change needed in 0.98? {quote} Because 0.98 is the latest stable branch. If this enhancement proves itself useful then we will be running this in production within the next few months. {quote} Also, on any minor upgrade e.g. 0.98.4 to 0.98.5, it should be possible to do a rolling restart from .4 to .5. This change would seems to require two rolling restarts, and on the second restart the ordering of the master restart will be important. {quote} Since this is an opt-in feature then requiring 2 rolling restarts should be okay? {quote} Without a backport of HBASE-10569, which I don't think we can backport to a stable branch, meta updates after this patch is applied in the current state would happen via a remote RPC call in a synchronized block as per my understanding, which won't be ok. {quote} Off-hand I don't see why colocation would be required. We'll take a look if we can come up with a less invasive solution to avoid the heavy synchronization. > Backport HBASE-11059 to 0.98 > ---------------------------- > > Key: HBASE-11546 > URL: https://issues.apache.org/jira/browse/HBASE-11546 > Project: HBase > Issue Type: Task > Reporter: Virag Kothari > > Discuss concerns about backporting HBASE-11059 to 0.98 -- This message was sent by Atlassian JIRA (v6.2#6252)