[HBASE-10047] postScannerFilterRow consumes a lot of CPU in tall table scans - ASF JIRA

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Type: Bug
Status: Closed
Priority: Major
Resolution: Later
Affects Version/s: None
Fix Version/s: None
Component/s: None
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Description

Continuing my profiling quest, I find that in scanning tall table (and filtering everything on the server) a quarter of the time is now spent in the postScannerFilterRow coprocessor hook.

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10047-0.94-poc-v4.txt
23/Dec/13 02:33
27 kB
Lars Hofhansl
10047-0.94-poc-v3.txt
22/Dec/13 05:03
3 kB
Lars Hofhansl
10047-0.94-sample-v2.txt
20/Dec/13 07:38
32 kB
Lars Hofhansl
10047-0.94-sample.txt
19/Dec/13 04:39
2 kB
Lars Hofhansl
postScannerFilterRow.png
27/Nov/13 01:26
79 kB
Lars Hofhansl

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Assignee:: Unassigned

Reporter:: Lars Hofhansl

Votes:: 0 Vote for this issue

Watchers:: 6 Start watching this issue

Dates

Created:: 27/Nov/13 01:17

Updated:: 17/Jun/22 04:47

Resolved:: 23/Dec/13 03:35