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From "Yu Li (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-16972) Log more details for Scan#next request when responseTooSlow
Date Mon, 31 Oct 2016 04:01:02 GMT
Yu Li created HBASE-16972:
-----------------------------

             Summary: Log more details for Scan#next request when responseTooSlow
                 Key: HBASE-16972
                 URL: https://issues.apache.org/jira/browse/HBASE-16972
             Project: HBase
          Issue Type: Improvement
          Components: Operability
            Reporter: Yu Li
            Assignee: Yu Li


Currently for if responseTooSlow happens on the scan.next call, we will get warn log like
below:
{noformat}
2016-10-31 11:43:23,430 WARN  [RpcServer.FifoWFPBQ.priority.handler=5,queue=1,port=60193]
ipc.RpcServer(2574):
(responseTooSlow): {"call":"Scan(org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ScanRequest)",
"starttimems":1477885403428,"responsesize":52,"method":"Scan","param":"scanner_id: 11 number_of_rows:
2147483647
close_scanner: false next_call_seq: 0 client_handles_partials: true client_handles_heartbeats:
true
track_scan_metrics: false renew: false","processingtimems":2,"client":"127.0.0.1:60254","queuetimems":0,"class":"HMaster"}
{noformat}
>From which we only have a {{scanner_id}} and impossible to know what exactly this scan
is about, like against which region of which table.

After this JIRA, we will improve the message to something like below (notice the last line):
{noformat}
2016-10-31 11:43:23,430 WARN  [RpcServer.FifoWFPBQ.priority.handler=5,queue=1,port=60193]
ipc.RpcServer(2574):
(responseTooSlow): {"call":"Scan(org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ScanRequest)",
"starttimems":1477885403428,"responsesize":52,"method":"Scan","param":"scanner_id: 11 number_of_rows:
2147483647
close_scanner: false next_call_seq: 0 client_handles_partials: true client_handles_heartbeats:
true
track_scan_metrics: false renew: false","processingtimems":2,"client":"127.0.0.1:60254","queuetimems":0,"class":"HMaster",
"scandetails":"table: hbase:meta region: hbase:meta,,1.1588230740"}
{noformat}



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