pankaj72981 commented on a change in pull request #3287:
URL: https://github.com/apache/hbase/pull/3287#discussion_r636676906
##########
File path:
hbase-server/src/main/java/org/apache/hadoop/hbase/util/FSTableDescriptors.java
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@@ -94,6 +95,10 @@
// TODO.
private final Map<TableName, TableDescriptor> cache = new
ConcurrentHashMap<>();
+ // Default meta table descriptor, will be used by RegionServer during
rolling upgrade until
+ // HMaster write latest 2.x meta table descriptor
+ private TableDescriptor defaultMetaTableDesc = null;
Review comment:
RegionServer can't update the meta descriptor,
org.apache.hadoop.hbase.regionserver.HRegionServer#canUpdateTableDescriptor
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