[IMPALA-8913] Add query option for disabling HBase row estimation - ASF JIRA

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Type: New Feature
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: None
Fix Version/s: Impala 3.4.0
Component/s: None
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Epic Color:
ghx-label-7

Description

~~IMPALA-8058~~ added a flag, disable_hbase_row_est, in the QueryCtx for tests to bypass the codes of estimating HBase row stats from HBase RPCs and fall back to HMS row count stats.

It's useful for point queries on high loaded HBase clusters, where we should reduce the #RPCs to HBase.

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Assignee:: Quanlong Huang

Reporter:: Quanlong Huang

Votes:: 1 Vote for this issue

Watchers:: 3 Start watching this issue

Dates

Created:: 30/Aug/19 12:48

Updated:: 09/Oct/19 00:56

Resolved:: 05/Sep/19 00:56