[
https://issues.apache.org/jira/browse/SPARK-32165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Vinoo Ganesh updated SPARK-32165:
---------------------------------
Description:
Copied from [https://github.com/apache/spark/pull/28128#issuecomment-653102770]
I'd like to point out that this pr (https://github.com/apache/spark/pull/28128)
doesn't fix the memory leaky completely. Once {{SessionState}} is touched, it
will add two more listeners into the SparkContext, namely
{{SQLAppStatusListener}} and {{ExecutionListenerBus}}
It can be reproduced easily as
{code:java}
test("SPARK-31354: SparkContext only register one SparkSession ApplicationEnd
listener") {
val conf = new SparkConf()
.setMaster("local")
.setAppName("test-app-SPARK-31354-1")
val context = new SparkContext(conf)
SparkSession
.builder()
.sparkContext(context)
.master("local")
.getOrCreate()
.sessionState // this touches the sessionState
val postFirstCreation = context.listenerBus.listeners.size()
SparkSession.clearActiveSession()
SparkSession.clearDefaultSession()
SparkSession
.builder()
.sparkContext(context)
.master("local")
.getOrCreate()
.sessionState // this touches the sessionState
val postSecondCreation = context.listenerBus.listeners.size()
SparkSession.clearActiveSession()
SparkSession.clearDefaultSession()
assert(postFirstCreation == postSecondCreation)
}
{code}
The problem can be reproduced by the above code.
was:
Copied from [https://github.com/apache/spark/pull/28128#issuecomment-653102770]
I'd like to point out that this pr doesn't fix the memory leaky completely.
Once {{SessionState}} is touched, it will add two more listeners into the
SparkContext, namely {{SQLAppStatusListener}} and {{ExecutionListenerBus}}
It can be reproduced easily as
{code:java}
test("SPARK-31354: SparkContext only register one SparkSession ApplicationEnd
listener") {
val conf = new SparkConf()
.setMaster("local")
.setAppName("test-app-SPARK-31354-1")
val context = new SparkContext(conf)
SparkSession
.builder()
.sparkContext(context)
.master("local")
.getOrCreate()
.sessionState // this touches the sessionState
val postFirstCreation = context.listenerBus.listeners.size()
SparkSession.clearActiveSession()
SparkSession.clearDefaultSession()
SparkSession
.builder()
.sparkContext(context)
.master("local")
.getOrCreate()
.sessionState // this touches the sessionState
val postSecondCreation = context.listenerBus.listeners.size()
SparkSession.clearActiveSession()
SparkSession.clearDefaultSession()
assert(postFirstCreation == postSecondCreation)
}
{code}
The problem can be reproduced by the above code.
> SessionState leaks SparkListener with multiple SparkSession
> -----------------------------------------------------------
>
> Key: SPARK-32165
> URL: https://issues.apache.org/jira/browse/SPARK-32165
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Xianjin YE
> Priority: Major
>
> Copied from
> [https://github.com/apache/spark/pull/28128#issuecomment-653102770]
> I'd like to point out that this pr
> (https://github.com/apache/spark/pull/28128) doesn't fix the memory leaky
> completely. Once {{SessionState}} is touched, it will add two more listeners
> into the SparkContext, namely {{SQLAppStatusListener}} and
> {{ExecutionListenerBus}}
> It can be reproduced easily as
> {code:java}
> test("SPARK-31354: SparkContext only register one SparkSession
> ApplicationEnd listener") {
> val conf = new SparkConf()
> .setMaster("local")
> .setAppName("test-app-SPARK-31354-1")
> val context = new SparkContext(conf)
> SparkSession
> .builder()
> .sparkContext(context)
> .master("local")
> .getOrCreate()
> .sessionState // this touches the sessionState
> val postFirstCreation = context.listenerBus.listeners.size()
> SparkSession.clearActiveSession()
> SparkSession.clearDefaultSession()
> SparkSession
> .builder()
> .sparkContext(context)
> .master("local")
> .getOrCreate()
> .sessionState // this touches the sessionState
> val postSecondCreation = context.listenerBus.listeners.size()
> SparkSession.clearActiveSession()
> SparkSession.clearDefaultSession()
> assert(postFirstCreation == postSecondCreation)
> }
> {code}
> The problem can be reproduced by the above code.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org
For additional commands, e-mail: issues-h...@spark.apache.org
