guluo created HBASE-28778:
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Summary: NPE may occur when opening master-status or table.jsp or
procedure.jsp while Master is initializing
Key: HBASE-28778
URL: https://issues.apache.org/jira/browse/HBASE-28778
Project: HBase
Issue Type: Bug
Components: UI
Reporter: guluo
The reason:
For table.jsp, NPE may occur when calling master.getConnection() while Master
is initializing.
asyncClusterConnection will only be initialized when HMaster call method
setupClusterConnection,
so before that, asyncClusterConnection is null, at this moment, we would get
NPE if opening table.jsp.
procedure.jsp and master-status may also encounter NPE for the similar reason.
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