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[conf](fe) Print jvm ClassHistogram in fe gc log after full gc#44010

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dataroaring merged 1 commit intoapache:masterfrom
swjtu-zhanglei:master-fix1
Nov 19, 2024
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[conf](fe) Print jvm ClassHistogram in fe gc log after full gc#44010
dataroaring merged 1 commit intoapache:masterfrom
swjtu-zhanglei:master-fix1

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@swjtu-zhanglei swjtu-zhanglei commented Nov 15, 2024 •
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  • Add -XX:+PrintClassHistogramAfterFullGC for JAVA_OPTS
  • Add classhisto*=trace for JAVA_OPTS_FOR_JDK_17

fe.gc.log will print like this:

2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc): 
 num     #instances         #bytes  class name
----------------------------------------------
   1:          7464        7053464  [B
   2:         37465        3656360  [C
   3:          7076        2909880  [Ljava.lang.Object;
   4:          4915        2306872  [I
   5:          9167        1719552  [S
   6:         16229        1168488  io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......

What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

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Check List (For Author)

  • Test

    • Regression test
    • Unit Test
    • Manual test (add detailed scripts or steps below)
    • No need to test or manual test. Explain why:
      • This is a refactor/code format and no logic has been changed.
      • Previous test can cover this change.
      • No code files have been changed.
      • Other reason

  • Behavior changed:

    • No.
    • Yes.

  • Does this need documentation?

    • No.
    • Yes.

Check List (For Reviewer who merge this PR)

  • Confirm the release note
  • Confirm test cases
  • Confirm document
  • Add branch pick label

@swjtu-zhanglei
[conf](fe) Print jvm ClassHistogram in fe gc log after full gc
60fdfc4 
* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17
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Thank you for your contribution to Apache Doris.
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Please clearly describe your PR:

  1. What problem was fixed (it's best to include specific error reporting information). How it was fixed.
  2. Which behaviors were modified. What was the previous behavior, what is it now, why was it modified, and what possible impacts might there be.
  3. What features were added. Why was this function added?
  4. Which code was refactored and why was this part of the code refactored?
  5. Which functions were optimized and what is the difference before and after the optimization?

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swjtu-zhanglei commented Nov 15, 2024

run buildall

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github-actions bot commented Nov 15, 2024

PR approved by anyone and no changes requested.

@github-actions github-actions bot added the approved Indicates a PR has been approved by one committer. label Nov 15, 2024
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github-actions bot commented Nov 15, 2024

PR approved by at least one committer and no changes requested.

@dataroaring dataroaring merged commit 48ef81a into apache:master Nov 19, 2024
github-actions bot pushed a commit that referenced this pull request Nov 19, 2024
@swjtu-zhanglei
[conf](fe) Print jvm ClassHistogram in fe gc log after full gc (#44010
d4d4aca 
)

* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17

fe.gc.log will print like this:
```
2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc): 
 num     #instances         #bytes  class name
----------------------------------------------
   1:          7464        7053464  [B
   2:         37465        3656360  [C
   3:          7076        2909880  [Ljava.lang.Object;
   4:          4915        2306872  [I
   5:          9167        1719552  [S
   6:         16229        1168488  io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......
```
@github-actions github-actions bot mentioned this pull request Nov 19, 2024
Merged
dataroaring pushed a commit that referenced this pull request Dec 3, 2024
@github-actions @swjtu-zhanglei
branch-3.0: [conf](fe) Print jvm ClassHistogram in fe gc log after …
5bf0c2a 
…full gc #44010 (#44245)

Cherry-picked from #44010

Co-authored-by: Lei Zhang <zhanglei@selectdb.com>
swjtu-zhanglei added a commit to swjtu-zhanglei/incubator-doris that referenced this pull request May 19, 2025
@swjtu-zhanglei
[conf](fe) Print jvm ClassHistogram in fe gc log after full gc (apa…
3e52bf9 
…che#44010)

* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17

fe.gc.log will print like this:
```
2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc):
 num     #instances         #bytes  class name
----------------------------------------------
   1:          7464        7053464  [B
   2:         37465        3656360  [C
   3:          7076        2909880  [Ljava.lang.Object;
   4:          4915        2306872  [I
   5:          9167        1719552  [S
   6:         16229        1168488  io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......
```
swjtu-zhanglei added a commit to swjtu-zhanglei/incubator-doris that referenced this pull request May 19, 2025
@swjtu-zhanglei
[conf](fe) Print jvm ClassHistogram in fe gc log after full gc (apa…
9ff3a43 
…che#44010)

* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17

fe.gc.log will print like this:
```
2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc):
 num     #instances         #bytes  class name
----------------------------------------------
   1:          7464        7053464  [B
   2:         37465        3656360  [C
   3:          7076        2909880  [Ljava.lang.Object;
   4:          4915        2306872  [I
   5:          9167        1719552  [S
   6:         16229        1168488  io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......
```
swjtu-zhanglei added a commit to swjtu-zhanglei/incubator-doris that referenced this pull request May 19, 2025
@swjtu-zhanglei
[conf](fe) Print jvm ClassHistogram in fe gc log after full gc (apa…
edaf841 
…che#44010)

* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17

fe.gc.log will print like this:
```
2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc):
 num     #instances         #bytes  class name
----------------------------------------------
   1:          7464        7053464  [B
   2:         37465        3656360  [C
   3:          7076        2909880  [Ljava.lang.Object;
   4:          4915        2306872  [I
   5:          9167        1719552  [S
   6:         16229        1168488  io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......
```
@swjtu-zhanglei swjtu-zhanglei mentioned this pull request May 19, 2025
Merged
16 tasks
yiguolei pushed a commit that referenced this pull request May 21, 2025
@swjtu-zhanglei
[conf](fe) Print jvm ClassHistogram in fe gc log after full gc (#44010
71deeec 
) (#51007)

* Add `-XX:+PrintClassHistogramAfterFullGC` for JAVA_OPTS
* Add `classhisto*=trace` for JAVA_OPTS_FOR_JDK_17

fe.gc.log will print like this:
```
2024-11-15T11:49:00.316+0800: 11.346: [Class Histogram (after full gc):
 num     #instances         #bytes  class name
----------------------------------------------
   1:          7464        7053464  [B
   2:         37465        3656360  [C
   3:          7076        2909880  [Ljava.lang.Object;
   4:          4915        2306872  [I
   5:          9167        1719552  [S
   6:         16229        1168488  io.grpc.netty.shaded.io.netty.buffer.PoolSubpage
......
```

### What problem does this PR solve?

Issue Number: close #xxx

Related PR: #xxx

Problem Summary:

### Release note

None

### Check List (For Author)

- Test <!-- At least one of them must be included. -->
    - [ ] Regression test
    - [ ] Unit Test
    - [ ] Manual test (add detailed scripts or steps below)
    - [x] No need to test or manual test. Explain why:
- [ ] This is a refactor/code format and no logic has been changed.
        - [x] Previous test can cover this change.
        - [x] No code files have been changed.
        - [ ] Other reason <!-- Add your reason?  -->

- Behavior changed:
    - [ ] No.
    - [ ] Yes. <!-- Explain the behavior change -->

- Does this need documentation?
    - [ ] No.
- [ ] Yes. <!-- Add document PR link here. eg:
apache/doris-website#1214 -->

### Check List (For Reviewer who merge this PR)

- [ ] Confirm the release note
- [ ] Confirm test cases
- [ ] Confirm document
- [ ] Add branch pick label <!-- Add branch pick label that this PR
should merge into -->
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