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Posted to issues@spark.apache.org by "Andrew Or (JIRA)" <ji...@apache.org> on 2015/05/19 01:05:59 UTC
[jira] [Updated] (SPARK-7716) SparkUI stage page hangs with many
tasks
[ https://issues.apache.org/jira/browse/SPARK-7716?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Or updated SPARK-7716:
-----------------------------
Description:
While running the following, I checked the stage page on the SparkUI:
{code}
sc.parallelize(1 to 5000, 10000).count()
{code}
Then I get
{code}
HTTP ERROR 500
Problem accessing /stages/stage/. Reason:
Server Error
Caused by:
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2367)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:587)
at java.lang.StringBuilder.append(StringBuilder.java:214)
{code}
This is because end up concatenating all the scala XML nodes into raw strings and shipping them to the UI through Jetty. The long-term correct fix would be to add pagination, but even adding a compression layer will fix this for most cases.
was:
While running the following, I checked the stage page on the SparkUI:
{code}
sc.parallelize(1 to 5000, 100000).count()
{code}
Then I get
{code}
HTTP ERROR 500
Problem accessing /stages/stage/. Reason:
Server Error
Caused by:
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2367)
at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130)
at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:587)
at java.lang.StringBuilder.append(StringBuilder.java:214)
{code}
This is because end up concatenating all the scala XML nodes into raw strings and shipping them to the UI through Jetty. The long-term correct fix would be to add pagination, but even adding a compression layer will fix this for most cases.
> SparkUI stage page hangs with many tasks
> ----------------------------------------
>
> Key: SPARK-7716
> URL: https://issues.apache.org/jira/browse/SPARK-7716
> Project: Spark
> Issue Type: Bug
> Components: Web UI
> Affects Versions: 1.4.0
> Reporter: Andrew Or
> Assignee: Andrew Or
> Priority: Critical
>
> While running the following, I checked the stage page on the SparkUI:
> {code}
> sc.parallelize(1 to 5000, 10000).count()
> {code}
> Then I get
> {code}
> HTTP ERROR 500
> Problem accessing /stages/stage/. Reason:
> Server Error
> Caused by:
> java.lang.OutOfMemoryError: Java heap space
> at java.util.Arrays.copyOf(Arrays.java:2367)
> at java.lang.AbstractStringBuilder.expandCapacity(AbstractStringBuilder.java:130)
> at java.lang.AbstractStringBuilder.ensureCapacityInternal(AbstractStringBuilder.java:114)
> at java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:587)
> at java.lang.StringBuilder.append(StringBuilder.java:214)
> {code}
> This is because end up concatenating all the scala XML nodes into raw strings and shipping them to the UI through Jetty. The long-term correct fix would be to add pagination, but even adding a compression layer will fix this for most cases.
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