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  1. HBase
  2. HBASE-26219

Negative time is logged while waiting on regionservers

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      On Master startup when waiting on RegionServers to report in the log message displays a negative time for the lastChange time.
       

      2021-07-30 06:49:02,882 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=1502ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-1502ms
      2021-07-30 06:49:03,693 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:04,384 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=3004ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-3004ms
      2021-07-30 06:49:04,694 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:05,694 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:05,886 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=4506ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-4506ms
      2021-07-30 06:49:06,695 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:07,389 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=6009ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-6009ms
      2021-07-30 06:49:07,695 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:08,700 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:08,891 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=7511ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-7511ms
      2021-07-30 06:49:09,701 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:10,393 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=9013ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-9013ms
      2021-07-30 06:49:10,701 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:11,702 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:11,896 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=10516ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-10516ms
      2021-07-30 06:49:12,702 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:13,398 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=12018ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-12018ms
      2021-07-30 06:49:13,703 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:14,703 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:14,900 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=13520ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-13520ms
      2021-07-30 06:49:15,704 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:16,402 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=0; waited=15022ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=-15022ms
      2021-07-30 06:49:16,704 WARN org.apache.hadoop.hbase.master.assignment.AssignmentManager: No servers available; cannot place 1 unassigned regions.
      2021-07-30 06:49:16,778 INFO org.apache.hadoop.hbase.master.ServerManager: Registering regionserver=example.com,16020,1627627573364
      2021-07-30 06:49:16,803 INFO org.apache.hadoop.hbase.master.ServerManager: Waiting on regionserver count=1; waited=15423ms, expecting min=1 server(s), max=NO_LIMIT server(s), timeout=4500ms, lastChange=0ms 

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              • Assignee:
                lpalasthy Levente Palasthy
                Reporter:
                psomogyi Peter Somogyi
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