Joe McDonnell created IMPALA-14130:
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Summary: start-impala-cluster.py needs to work without tables
loaded
Key: IMPALA-14130
URL: https://issues.apache.org/jira/browse/IMPALA-14130
Project: IMPALA
Issue Type: Task
Components: Infrastructure
Affects Versions: Impala 5.0.0
Reporter: Joe McDonnell
IMPALA-13850 changed the behavior of bin/start-impala-cluster.py to wait for
the number of tables to be at least one. This is needed to detect that the
catalog has seen at least one update. There is special logic in dataload to
start Impala without tables in that circumstance.
This broke the perf-AB-test job, which starts Impala before loading data. There
are other times when we want to start Impala without tables, and it is
inconvenient to need to specify --wait_num_tables each time.
We should detect the catalog update by some means other than the number of
tables, and it needs to work without requiring data to be loaded. Maybe the
number of databases could work.
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