Csaba Ringhofer created IMPALA-12162:
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Summary: makeInsertEventData() can be slow during ACID writes
Key: IMPALA-12162
URL: https://issues.apache.org/jira/browse/IMPALA-12162
Project: IMPALA
Issue Type: Improvement
Components: Catalog
Reporter: Csaba Ringhofer
Saw some INSERTs where most of the time was spent in
https://github.com/apache/impala/blob/dc63ae514a445e3f197cab405b01a30c58015695/fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java#L7011
This was surprising, as I assumed that most of the time in
updateCatalog()/createInsertEvents() is spent in HMS RPCs, but in the jstacks I
saw it was mainly in calls to HDFS to compute checksum of files.
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