You are viewing a plain text version of this content. The canonical link for it is here.
Posted to notifications@skywalking.apache.org by "hyhyf (via GitHub)" <gi...@apache.org> on 2023/03/27 13:36:45 UTC

[GitHub] [skywalking-java] hyhyf opened a new pull request, #487: Fix a thread leak in `SamplingService` when updated sampling policy in the runtime.

hyhyf opened a new pull request, #487:
URL: https://github.com/apache/skywalking-java/pull/487

   <!--
       ⚠️ Please make sure to read this template first, pull requests that don't accord with this template
       maybe closed without notice.
       Texts surrounded by `<` and `>` are meant to be replaced by you, e.g. <framework name>, <issue number>.
       Put an `x` in the `[ ]` to mark the item as CHECKED. `[x]`
   -->
   
   <!-- ==== 🐛 Remove this line WHEN AND ONLY WHEN you're fixing a bug, follow the checklist 👇 ====
   ### Fix <bug description or the bug issue number or bug issue link>
   - [ ] Add a unit test to verify that the fix works.
   - [ ] Explain briefly why the bug exists and how to fix it.
        ==== 🐛 Remove this line WHEN AND ONLY WHEN you're fixing a bug, follow the checklist 👆 ==== -->
   
   <!-- ==== 🔌 Remove this line WHEN AND ONLY WHEN you're adding a new plugin, follow the checklist 👇 ====
   ### Add an agent plugin to support <framework name>
   - [ ] Add a test case for the new plugin, refer to [the doc](https://github.com/apache/skywalking-java/blob/main/docs/en/setup/service-agent/java-agent/Plugin-test.md)
   - [ ] Add a component id in [the component-libraries.yml](https://github.com/apache/skywalking/blob/master/oap-server/server-starter/src/main/resources/component-libraries.yml)
   - [ ] Add a logo in [the UI repo](https://github.com/apache/skywalking-rocketbot-ui/tree/master/src/views/components/topology/assets)
        ==== 🔌 Remove this line WHEN AND ONLY WHEN you're adding a new plugin, follow the checklist 👆 ==== -->
   
   <!-- ==== 📈 Remove this line WHEN AND ONLY WHEN you're improving the performance, follow the checklist 👇 ====
   ### Improve the performance of <class or module or ...>
   - [ ] Add a benchmark for the improvement, refer to [the existing ones](https://github.com/apache/skywalking-java/blob/main/apm-commons/apm-datacarrier/src/test/java/org/apache/skywalking/apm/commons/datacarrier/LinkedArrayBenchmark.java)
   - [ ] The benchmark result.
   ```text
   <Paste the benchmark results here>
   ```
   - [ ] Links/URLs to the theory proof or discussion articles/blogs. <links/URLs here>
        ==== 📈 Remove this line WHEN AND ONLY WHEN you're improving the performance, follow the checklist 👆 ==== -->
   
   <!-- ==== 🆕 Remove this line WHEN AND ONLY WHEN you're adding a new feature, follow the checklist 👇 ====
   ### <Feature description>
   - [ ] If this is non-trivial feature, paste the links/URLs to the design doc.
   - [ ] Update the documentation to include this new feature.
   - [ ] Tests(including UT, IT, E2E) are added to verify the new feature.
   - [ ] If it's UI related, attach the screenshots below.
        ==== 🆕 Remove this line WHEN AND ONLY WHEN you're adding a new feature, follow the checklist 👆 ==== -->
   
   - [ ] If this pull request closes/resolves/fixes an existing issue, replace the issue number. Closes #<issue number>.
   - [ ] Update the [`CHANGES` log](https://github.com/apache/skywalking-java/blob/main/CHANGES.md).
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] hyhyf commented on pull request #487: Update SampleService to create schedule thread pool

Posted by "hyhyf (via GitHub)" <gi...@apache.org>.
hyhyf commented on PR #487:
URL: https://github.com/apache/skywalking-java/pull/487#issuecomment-1484972392

   > Which JDK are you using? Have you checked the source codes?
   
    I use JDK8, and i debugged source codes in local enviroment.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] wu-sheng commented on pull request #487: Update SampleService to create schedule thread pool

Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng commented on PR #487:
URL: https://github.com/apache/skywalking-java/pull/487#issuecomment-1485048964

   I think the change makes sense. It is a leak. `scheduledFuture#cancel` doesn't close the whole pool actually.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] wu-sheng commented on pull request #487: Fix a thread leak in `SamplingService` when updated sampling policy in the runtime.

Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng commented on PR #487:
URL: https://github.com/apache/skywalking-java/pull/487#issuecomment-1485050983

   @hyhyf Please add `* Fix a thread leak in `SamplingService` when updated sampling policy in the runtime.` as the change log into the `changes.md` in the root. We need the description for the changes.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] wu-sheng closed pull request #487: Fix a thread leak in `SamplingService` when updated sampling policy in the runtime.

Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng closed pull request #487: Fix a thread leak in `SamplingService` when updated sampling policy in the runtime.
URL: https://github.com/apache/skywalking-java/pull/487


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] wu-sheng merged pull request #487: Fix a thread leak in `SamplingService` when updated sampling policy in the runtime.

Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng merged PR #487:
URL: https://github.com/apache/skywalking-java/pull/487


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] wu-sheng commented on pull request #487: Update SampleService to create schedule thread pool

Posted by "wu-sheng (via GitHub)" <gi...@apache.org>.
wu-sheng commented on PR #487:
URL: https://github.com/apache/skywalking-java/pull/487#issuecomment-1484911918

   Which JDK are you using? Have you checked the source codes?


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] hyhyf commented on pull request #487: Update SampleService to create schedule thread pool

Posted by "hyhyf (via GitHub)" <gi...@apache.org>.
hyhyf commented on PR #487:
URL: https://github.com/apache/skywalking-java/pull/487#issuecomment-1484880390

   I have an app that has a large amount of traffic during the day, so I use dynamic configuration Agent#SAMPLE_N_PER_3_SECS value to complete sampling. However, whenever the value switches from - 1 to another number, the sampleService always creates new thread tasks, while previously created threads are in WAITING or TIMED_WAITING state. Over and over again, the number of application threads has increased significantly. I think it is thread leak.


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org


[GitHub] [skywalking-java] hyhyf commented on pull request #487: Update SampleService to create schedule thread pool

Posted by "hyhyf (via GitHub)" <gi...@apache.org>.
hyhyf commented on PR #487:
URL: https://github.com/apache/skywalking-java/pull/487#issuecomment-1484870395

   [https://github.com/apache/skywalking/discussions/10549#discussioncomment-5437985](url)


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: notifications-unsubscribe@skywalking.apache.org

For queries about this service, please contact Infrastructure at:
users@infra.apache.org