pan3793 opened a new pull request, #49483:
URL: https://github.com/apache/spark/pull/49483
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### What changes were proposed in this pull request?
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SPARK-46094 added JVM profiling support for the executor, this PR extends it
to support the driver.
NOTE: I mark this PR WIP because I just demonstrated the minimal change to
make the functionality work, well, the class name and configurations may be
worth re-evaluating.
### Why are the changes needed?
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It's also valuable to profile the driver when hits some performance issues,
for example, some catalyst rules may not be efficient and occupy too much CPU
time.
### Does this PR introduce _any_ user-facing change?
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Yes, new feature.
### How was this patch tested?
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I tested the functionality works well on both YARN client and cluster modes.
YARN client mode
```
bin/spark-submit run-example \
--master yarn \
--deploy-mode client \
--conf
spark.plugins=org.apache.spark.executor.profiler.ExecutorProfilerPlugin \
--conf spark.driver.profiling.enabled=true \
--conf spark.executor.profiling.enabled=true \
--conf spark.executor.profiling.dfsDir=hdfs:///spark-profiling \
--conf spark.executor.profiling.fraction=1 \
SparkPi 100000
```
```
$ hadoop fs -ls /spark-profiling/application_1736320707252_0027
Found 45 items
-rw-rw---- 3 hadoop supergroup 15597151 2025-01-14 17:12
/spark-profiling/application_1736320707252_0027/profile-driver.jfr
-rw-rw---- 3 hadoop supergroup 4971408 2025-01-14 17:12
/spark-profiling/application_1736320707252_0027/profile-exec-1.jfr
-rw-rw---- 3 hadoop supergroup 3341366 2025-01-14 17:12
/spark-profiling/application_1736320707252_0027/profile-exec-10.jfr
-rw-rw---- 3 hadoop supergroup 3210095 2025-01-14 17:12
/spark-profiling/application_1736320707252_0027/profile-exec-11.jfr
...
```
YARN cluster mode
```
bin/spark-submit run-example \
--master yarn \
--deploy-mode cluster \
--conf
spark.plugins=org.apache.spark.executor.profiler.ExecutorProfilerPlugin \
--conf spark.driver.profiling.enabled=true \
--conf spark.executor.profiling.enabled=true \
--conf spark.executor.profiling.dfsDir=hdfs:///spark-profiling \
--conf spark.executor.profiling.fraction=1 \
SparkPi 100000
```
```
$ hadoop fs -ls /spark-profiling/application_1736320707252_0028_1
Found 49 items
-rw-rw---- 3 hadoop supergroup 61986743 2025-01-14 17:24
/spark-profiling/application_1736320707252_0028_1/profile-driver.jfr
-rw-rw---- 3 hadoop supergroup 21592411 2025-01-14 17:24
/spark-profiling/application_1736320707252_0028_1/profile-exec-1.jfr
-rw-rw---- 3 hadoop supergroup 19722411 2025-01-14 17:24
/spark-profiling/application_1736320707252_0028_1/profile-exec-10.jfr
-rw-rw---- 3 hadoop supergroup 19566894 2025-01-14 17:24
/spark-profiling/application_1736320707252_0028_1/profile-exec-11.jfr
...
```
### Was this patch authored or co-authored using generative AI tooling?
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No.
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