[
https://issues.apache.org/jira/browse/HBASE-29940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Xiao Liu updated HBASE-29940:
-----------------------------
Attachment: 04-JDK21+ZGC.png
> GC Collector stats can't be display 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: 3.0.0-beta-2
>
> 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:
> h3. JDK17 + G1
> {code:language=bash|borderStyle=solid|theme=RDark|linenumbers=true|collapse=false}
> 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:language=bash|borderStyle=solid|theme=RDark|linenumbers=true|collapse=false}
> 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:language=bash|borderStyle=solid|theme=RDark|linenumbers=true|collapse=false}
> 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:language=bash|borderStyle=solid|theme=RDark|linenumbers=true|collapse=false}
> 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:language=bash|borderStyle=solid|theme=RDark|linenumbers=true|collapse=true}
> 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}
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
