Bug 1180693

Summary: Inefficient index updates cause high cost merges and increase overall latency
Product: [JBoss] JBoss Data Grid 6 Reporter: Gustavo Fernandes <gfernand>
Component: InfinispanAssignee: Tristan Tarrant <ttarrant>
Status: CLOSED CURRENTRELEASE QA Contact: Martin Gencur <mgencur>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.4.0CC: afield, dstahl, gfernand, jdg-bugs, rvansa
Target Milestone: CR1   
Target Release: 6.4.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-01-28 13:27:42 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 1130447    

Description Gustavo Fernandes 2015-01-09 17:35:50 UTC
Description of problem:


Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 2 Gustavo Fernandes 2015-01-09 20:17:25 UTC
https://github.com/infinispan/jdg/pull/433

Comment 3 Radim Vansa 2015-01-12 09:38:07 UTC
What kind of improvements (latency, throughput) in what setup (sync/async) do you expect with this fix?

Comment 4 Gustavo Fernandes 2015-01-13 09:35:34 UTC
It improves latency for any kind of indexing (sync/async/mass indexing).
Essentially it reduces the number of tasks done against the index, at the same time making the remaining ops more efficient.
It also eliminates a merge bottleneck that caused long 'freezes' under load.