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Posted to reviews@spark.apache.org by "pan3793 (via GitHub)" <gi...@apache.org> on 2024/09/22 15:12:28 UTC
[PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
pan3793 opened a new pull request, #48200:
URL: https://github.com/apache/spark/pull/48200
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### What changes were proposed in this pull request?
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`SparkListenerConnectServiceStarted` is introduced in SPARK-47952, while the referenced field `SparkConf` is not serialized properly, then causes the SHS deserialization failure.
### Why are the changes needed?
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Fix the event log deserialization and recover the SHS UI rendering.
### Does this PR introduce _any_ user-facing change?
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Fix an unreleased feature, recover the SHS UI rendering event logs produced by the connect server.
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Start a connect server with event log enabled, and then open the UI in SHS.
4.0.0-preview2
<img width="1624" alt="image" src="https://github.com/user-attachments/assets/adfcb4d1-9ca2-4060-96db-bcad3c63e9b6">
This PR.
<img width="1624" alt="image" src="https://github.com/user-attachments/assets/13a15ba2-b273-4f52-8212-ad829f5a1aee">
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No.
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Re: [PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
Posted by "hvanhovell (via GitHub)" <gi...@apache.org>.
hvanhovell commented on code in PR #48200:
URL: https://github.com/apache/spark/pull/48200#discussion_r1771663632
##########
sql/connect/server/src/main/scala/org/apache/spark/sql/connect/service/SparkConnectService.scala:
##########
@@ -529,7 +529,7 @@ object SparkConnectService extends Logging {
case class SparkListenerConnectServiceStarted(
hostAddress: String,
bindingPort: Int,
- sparkConf: SparkConf,
+ sparkConf: Map[String, String],
Review Comment:
Can anyone explain why we are sending all spark confs? That seems to be a bit heavyweight.
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Re: [PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
Posted by "TakawaAkirayo (via GitHub)" <gi...@apache.org>.
TakawaAkirayo commented on code in PR #48200:
URL: https://github.com/apache/spark/pull/48200#discussion_r1774662293
##########
sql/connect/server/src/main/scala/org/apache/spark/sql/connect/service/SparkConnectService.scala:
##########
@@ -529,7 +529,7 @@ object SparkConnectService extends Logging {
case class SparkListenerConnectServiceStarted(
hostAddress: String,
bindingPort: Int,
- sparkConf: SparkConf,
+ sparkConf: Map[String, String],
Review Comment:
The purpose is to send additional context, such as the spark.app.id set in SparkContext's _conf during startup, to the listener. This can be achieved through other means within the listener and this seems over-designed now, let's remove it @pan3793
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Re: [PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on PR #48200:
URL: https://github.com/apache/spark/pull/48200#issuecomment-2366831423
cc @HyukjinKwon @grundprinzip @TakawaAkirayo
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Re: [PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
Posted by "TakawaAkirayo (via GitHub)" <gi...@apache.org>.
TakawaAkirayo commented on code in PR #48200:
URL: https://github.com/apache/spark/pull/48200#discussion_r1774662293
##########
sql/connect/server/src/main/scala/org/apache/spark/sql/connect/service/SparkConnectService.scala:
##########
@@ -529,7 +529,7 @@ object SparkConnectService extends Logging {
case class SparkListenerConnectServiceStarted(
hostAddress: String,
bindingPort: Int,
- sparkConf: SparkConf,
+ sparkConf: Map[String, String],
Review Comment:
The purpose is to send additional context, such as the spark.app.id set in SparkContext's _conf during startup, to the listener. This can be achieved through other means within the listener. I agree that we can remove this from the event.
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Re: [PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on code in PR #48200:
URL: https://github.com/apache/spark/pull/48200#discussion_r1776316547
##########
sql/connect/server/src/main/scala/org/apache/spark/sql/connect/service/SparkConnectService.scala:
##########
@@ -529,7 +529,7 @@ object SparkConnectService extends Logging {
case class SparkListenerConnectServiceStarted(
hostAddress: String,
bindingPort: Int,
- sparkConf: SparkConf,
+ sparkConf: Map[String, String],
Review Comment:
Okay, updated and verified again, please take another look, @hvanhovell and @TakawaAkirayo
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Re: [PR] [SPARK-49751][CONNECT] Fix deserialization of SparkListenerConnectServiceStarted event [spark]
Posted by "pan3793 (via GitHub)" <gi...@apache.org>.
pan3793 commented on code in PR #48200:
URL: https://github.com/apache/spark/pull/48200#discussion_r1772551403
##########
sql/connect/server/src/main/scala/org/apache/spark/sql/connect/service/SparkConnectService.scala:
##########
@@ -529,7 +529,7 @@ object SparkConnectService extends Logging {
case class SparkListenerConnectServiceStarted(
hostAddress: String,
bindingPort: Int,
- sparkConf: SparkConf,
+ sparkConf: Map[String, String],
Review Comment:
regarding use case mentioned in SPARK-47952, I think sparkConf is not necessary, maybe the author can answer this question @TakawaAkirayo
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