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Ted Yu commented on HBASE-4213: ------------------------------- I haven't gone through the patch yet. bq. 5. Master will recursively delete the node /hbase/schema/<table name>, if the number of childrens of /hbase/schema/<table name> is greater than or equal to current number of active region servers. You meant recursively deleting the children of node /hbase/schema/<table name>, right ? For region server which joins the cluster after the creation of /hbase/schema/<table name>, it should be able to find out that it already reads the most recent HTD. Does it create a child node under /hbase/schema/<table name> ? > Support instant schema updates with out master's intervention (i.e with out > enable/disable and bulk assign/unassign) > -------------------------------------------------------------------------------------------------------------------- > > Key: HBASE-4213 > URL: https://issues.apache.org/jira/browse/HBASE-4213 > Project: HBase > Issue Type: Improvement > Reporter: Subbu M Iyer > Assignee: Subbu M Iyer > Attachments: HBASE-4213-Instant_schema_change.patch > > > This Jira is a slight variation in approach to what is being done as part of > https://issues.apache.org/jira/browse/HBASE-1730 > Support instant schema updates such as Modify Table, Add Column, Modify > Column operations: > 1. With out enable/disabling the table. > 2. With out bulk unassign/assign of regions. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira