Quanlong Huang created IMPALA-13117:
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Summary: Improve the heap usage during metadata loading and
DDL/DML executions
Key: IMPALA-13117
URL: https://issues.apache.org/jira/browse/IMPALA-13117
Project: IMPALA
Issue Type: Improvement
Components: Catalog
Reporter: Quanlong Huang
Assignee: Quanlong Huang
The JVM heap size of catalogd is not just used by the metadata cache. The
in-progress metadata loading threads and DDL/DML executions also creates temp
objects, which introduces spikes in the heap usage. We should improve the heap
usage in this part, especially when the metadata loading is slow due to
external slowness (e.g. listing files on S3).
CC [[email protected]]
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