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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