virajjasani commented on a change in pull request #3826:
URL: https://github.com/apache/hbase/pull/3826#discussion_r745027686
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File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/master/RegionStateStore.java
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@@ -73,9 +73,11 @@
* @return A ServerName instance or {@link HRegionInfo#getServerName(Result)}
* if necessary fields not found or empty.
*/
- static ServerName getRegionServer(final Result r, int replicaId) {
+ static ServerName getRegionServer(final Result r, int replicaId,
Configuration config) {
Cell cell = r.getColumnLatestCell(HConstants.CATALOG_FAMILY,
getServerNameColumn(replicaId));
- if (cell == null || cell.getValueLength() == 0) {
+ boolean isZKAssignmentInUse = ConfigUtil.useZKForAssignment(config) &&
!config
+ .getBoolean("hbase.assignment.usezk.migrating", false);
+ if (cell == null || cell.getValueLength() == 0 || isZKAssignmentInUse) {
Review comment:
The intention is:
if (migrating to non-zk or enabled non-zk) => use `info:sn` if available,
else use `info:server` as usual.
if (usezk) => never use `info:sn`, hence `isZKAssignmentInUse` is added with
`||` condition so that if condition will always be true even if `info:sn` has
non-empty value for ZK based assignment.
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