Mujtaba Chohan created PHOENIX-2179:
---------------------------------------
Summary: Trace output contains extremely large number of readBlock
rows
Key: PHOENIX-2179
URL: https://issues.apache.org/jira/browse/PHOENIX-2179
Project: Phoenix
Issue Type: Bug
Reporter: Mujtaba Chohan
Priority: Minor
As an example, trace over a 10M row table using count * query produces over
250K rows for HFileReaderV2.readBlock.
{code}
select count(*), description from SYSTEM.TRACING_STATS WHERE TRACE_ID=X group
by description;
+------------------------------------------+------------------------------------------+
| COUNT(1) | DESCRIPTION
|
+------------------------------------------+------------------------------------------+
| 3 | ClientService.Scan
|
| 253879 | HFileReaderV2.readBlock
|
| 1 | Scanner opened on server
|
+------------------------------------------+------------------------------------------+
{code}
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