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https://issues.apache.org/jira/browse/HBASE-29940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18063691#comment-18063691
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Hudson commented on HBASE-29940:
--------------------------------
Results for branch branch-2.6
[build #3 on
builds.a.o|https://ci-hbase.apache.org/job/HBase-Integration-Test/job/branch-2.6/3/]:
(/) *{color:green}+1 overall{color}*
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details (if available):
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
(/) {color:green}+1 client integration test for 2.10.2 {color}
(/) {color:green}+1 client integration test for 3.3.5 {color}
(/) {color:green}+1 client integration test for 3.3.5 with shaded hadoop
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(/) {color:green}+1 client integration test for 3.3.6 {color}
(/) {color:green}+1 client integration test for 3.3.6 with shaded hadoop
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(/) {color:green}+1 client integration test for 3.4.0 {color}
(/) {color:green}+1 client integration test for 3.4.0 with shaded hadoop
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(/) {color:green}+1 client integration test for 3.4.1 {color}
(/) {color:green}+1 client integration test for 3.4.1 with shaded hadoop
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(/) {color:green}+1 client integration test for 3.4.2 {color}
(/) {color:green}+1 client integration test for 3.4.2 with shaded hadoop
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(/) {color:green}+1 client integration test for 3.4.3 {color}
(/) {color:green}+1 client integration test for 3.4.3 with shaded hadoop
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> GC Collector stats can't be displayed properly in JDK21
> -------------------------------------------------------
>
> Key: HBASE-29940
> URL: https://issues.apache.org/jira/browse/HBASE-29940
> Project: HBase
> Issue Type: Improvement
> Components: UI
> Reporter: Xiao Liu
> Assignee: Xiao Liu
> Priority: Major
> Labels: pull-request-available
> Fix For: 2.7.0, 3.0.0-beta-2, 2.6.5, 2.5.14
>
> Attachments: 00-default-error-case.png, 01-JDK17+G1.png,
> 02-JDK17+ZGC.png, 03-JDK21+G1.png, 04-JDK21+ZGC.png,
> 05-JDK21+Generational_ZGC.png
>
>
> When using different JDK versions and adding different JVM configurations,
> the number of GC Collectors may vary. The current logic hardcodes two GC
> Collectors, but in actual scenarios, there could be three or four. We need to
> better accommodate this situation.
> Below are different scenarios, after applying this patch, these scenarios
> will all display correctly.
> h3. JDK17 + G1
> {code:java}
> 2 Garbage Collector MXBeans
> ---------------------------------------------
> Name: G1 Young Generation
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: G1 Eden Space, G1 Survivor Space, G1 Old Gen
> ---------------------------------------------
> Name: G1 Old Generation
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: G1 Eden Space, G1 Survivor Space, G1 Old Gen
> {code}
> h3. JDK17 + ZGC
> {code:java}
> 2 Garbage Collector MXBeans
> ---------------------------------------------
> Name: ZGC Cycles
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZHeap
> ---------------------------------------------
> Name: ZGC Pauses
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZHeap
> {code}
> h3. JDK21 + G1
> {code:java}
> 3 Garbage Collector MXBeans:
> ---------------------------------------------
> Name: G1 Young Generation
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: G1 Eden Space, G1 Survivor Space, G1 Old Gen
> ---------------------------------------------
> Name: G1 Concurrent GC
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: G1 Old Gen
> ---------------------------------------------
> Name: G1 Old Generation
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: G1 Eden Space, G1 Survivor Space, G1 Old Gen
> {code}
> h3. JDK21 + ZGC
> {code:java}
> 2 Garbage Collector MXBeans:
> ---------------------------------------------
> Name: ZGC Cycles
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZHeap
> ---------------------------------------------
> Name: ZGC Pauses
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZHeap
> {code}
> h3. JDK21 + Generational ZGC
> {code:java}
> 4 Garbage Collector MXBeans:
> ---------------------------------------------
> Name: ZGC Minor Cycles
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZGC Young Generation, ZGC Old Generation
> ---------------------------------------------
> Name: ZGC Minor Pauses
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZGC Young Generation, ZGC Old Generation
> ---------------------------------------------
> Name: ZGC Major Cycles
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZGC Young Generation, ZGC Old Generation
> ---------------------------------------------
> Name: ZGC Major Pauses
> Collection Count: 0
> Collection Time (ms): 0
> Memory Pool Names: ZGC Young Generation, ZGC Old Generation
> {code}
>
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