You are viewing a plain text version of this content. The canonical link for it is here.
Posted to reviews@spark.apache.org by "yaooqinn (via GitHub)" <gi...@apache.org> on 2023/09/25 06:15:52 UTC

[GitHub] [spark] yaooqinn opened a new pull request, #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

yaooqinn opened a new pull request, #43095:
URL: https://github.com/apache/spark/pull/43095

   <!--
   Thanks for sending a pull request!  Here are some tips for you:
     1. If this is your first time, please read our contributor guidelines: https://spark.apache.org/contributing.html
     2. Ensure you have added or run the appropriate tests for your PR: https://spark.apache.org/developer-tools.html
     3. If the PR is unfinished, add '[WIP]' in your PR title, e.g., '[WIP][SPARK-XXXX] Your PR title ...'.
     4. Be sure to keep the PR description updated to reflect all changes.
     5. Please write your PR title to summarize what this PR proposes.
     6. If possible, provide a concise example to reproduce the issue for a faster review.
     7. If you want to add a new configuration, please read the guideline first for naming configurations in
        'core/src/main/scala/org/apache/spark/internal/config/ConfigEntry.scala'.
     8. If you want to add or modify an error type or message, please read the guideline first in
        'core/src/main/resources/error/README.md'.
   -->
   
   ### What changes were proposed in this pull request?
   <!--
   Please clarify what changes you are proposing. The purpose of this section is to outline the changes and how this PR fixes the issue. 
   If possible, please consider writing useful notes for better and faster reviews in your PR. See the examples below.
     1. If you refactor some codes with changing classes, showing the class hierarchy will help reviewers.
     2. If you fix some SQL features, you can provide some references of other DBMSes.
     3. If there is design documentation, please add the link.
     4. If there is a discussion in the mailing list, please add the link.
   -->
   
   Since version 9, Java has supported the 'daemon' and 'priority' fields in ThreadInfo. In this PR, we extract them from ThreadInfo to ThreadStackTrace
   
   ### Why are the changes needed?
   <!--
   Please clarify why the changes are needed. For instance,
     1. If you propose a new API, clarify the use case for a new API.
     2. If you fix a bug, you can clarify why it is a bug.
   -->
   
   more information for thread pages in UI and rest APIs
   
   ### Does this PR introduce _any_ user-facing change?
   <!--
   Note that it means *any* user-facing change including all aspects such as the documentation fix.
   If yes, please clarify the previous behavior and the change this PR proposes - provide the console output, description and/or an example to show the behavior difference if possible.
   If possible, please also clarify if this is a user-facing change compared to the released Spark versions or within the unreleased branches such as master.
   If no, write 'No'.
   -->
   
   yes, ThreadStackTrace changes
   
   ### How was this patch tested?
   <!--
   If tests were added, say they were added here. Please make sure to add some test cases that check the changes thoroughly including negative and positive cases if possible.
   If it was tested in a way different from regular unit tests, please clarify how you tested step by step, ideally copy and paste-able, so that other reviewers can test and check, and descendants can verify in the future.
   If tests were not added, please describe why they were not added and/or why it was difficult to add.
   If benchmark tests were added, please run the benchmarks in GitHub Actions for the consistent environment, and the instructions could accord to: https://spark.apache.org/developer-tools.html#github-workflow-benchmarks.
   -->
   
   new tests
   
   ### Was this patch authored or co-authored using generative AI tooling?
   <!--
   If generative AI tooling has been used in the process of authoring this patch, please include the
   phrase: 'Generated-by: ' followed by the name of the tool and its version.
   If no, write 'No'.
   Please refer to the [ASF Generative Tooling Guidance](https://www.apache.org/legal/generative-tooling.html) for details.
   -->
   no


-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


[GitHub] [spark] yaooqinn commented on a diff in pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

Posted by "yaooqinn (via GitHub)" <gi...@apache.org>.
yaooqinn commented on code in PR #43095:
URL: https://github.com/apache/spark/pull/43095#discussion_r1336559306


##########
core/src/main/scala/org/apache/spark/status/api/v1/api.scala:
##########
@@ -540,19 +540,21 @@ case class ThreadStackTrace(
     lockName: Option[String],
     lockOwnerName: Option[String],
     suspended: Boolean,
-    inNative: Boolean) {
+    inNative: Boolean,
+    isDaemon: Boolean,
+    priority: Int) {

Review Comment:
   The JVM supports a priority-based scheduling algorithm for thread scheduling. For example, Spark UI threads get a priority of 5, while its acceptors get 3. However, given the limited scope of my knowledge, I can't tell whether it actually works or not.



-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


[GitHub] [spark] srowen closed pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

Posted by "srowen (via GitHub)" <gi...@apache.org>.
srowen closed pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace
URL: https://github.com/apache/spark/pull/43095


-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


[GitHub] [spark] mridulm commented on a diff in pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

Posted by "mridulm (via GitHub)" <gi...@apache.org>.
mridulm commented on code in PR #43095:
URL: https://github.com/apache/spark/pull/43095#discussion_r1337963389


##########
core/src/main/scala/org/apache/spark/status/api/v1/api.scala:
##########
@@ -540,19 +540,21 @@ case class ThreadStackTrace(
     lockName: Option[String],
     lockOwnerName: Option[String],
     suspended: Boolean,
-    inNative: Boolean) {
+    inNative: Boolean,
+    isDaemon: Boolean,
+    priority: Int) {

Review Comment:
   Yeah, practically it does not convey much given how jvm and linux use thread priority in case of java.
   Wondering if it might be distracting for users - they cant really do much about it, while it ends up being a red herring while analyzing performance.
   
   I would be fine with dropping it, given the marginal value (if any) they bring.



-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


[GitHub] [spark] yaooqinn commented on pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

Posted by "yaooqinn (via GitHub)" <gi...@apache.org>.
yaooqinn commented on PR #43095:
URL: https://github.com/apache/spark/pull/43095#issuecomment-1734707455

   cc @dongjoon-hyun @srowen @HyukjinKwon thanks


-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


[GitHub] [spark] srowen commented on pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

Posted by "srowen (via GitHub)" <gi...@apache.org>.
srowen commented on PR #43095:
URL: https://github.com/apache/spark/pull/43095#issuecomment-1740106094

   Merged to master


-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org


[GitHub] [spark] srowen commented on a diff in pull request #43095: [SPARK-44895][CORE][UI] Add 'daemon', 'priority' for ThreadStackTrace

Posted by "srowen (via GitHub)" <gi...@apache.org>.
srowen commented on code in PR #43095:
URL: https://github.com/apache/spark/pull/43095#discussion_r1336544255


##########
core/src/main/scala/org/apache/spark/status/api/v1/api.scala:
##########
@@ -540,19 +540,21 @@ case class ThreadStackTrace(
     lockName: Option[String],
     lockOwnerName: Option[String],
     suspended: Boolean,
-    inNative: Boolean) {
+    inNative: Boolean,
+    isDaemon: Boolean,
+    priority: Int) {

Review Comment:
   Has priority ever meant anything for Java threads? I thought it had no effect. Is this useful info?



-- 
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: reviews-unsubscribe@spark.apache.org

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


---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org