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Posted to issues@spark.apache.org by "Kent Yao (Jira)" <ji...@apache.org> on 2026/02/07 16:15:00 UTC
[jira] [Resolved] (SPARK-55387) Broken DAG Visualization in Spark UI
[ https://issues.apache.org/jira/browse/SPARK-55387?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Kent Yao resolved SPARK-55387.
------------------------------
Fix Version/s: 4.2.0
4.1.2
Resolution: Fixed
Issue resolved by pull request 54171
[https://github.com/apache/spark/pull/54171]
> Broken DAG Visualization in Spark UI
> ------------------------------------
>
> Key: SPARK-55387
> URL: https://issues.apache.org/jira/browse/SPARK-55387
> Project: Spark
> Issue Type: Bug
> Components: UI
> Affects Versions: 4.2.0
> Reporter: Ruifeng Zheng
> Assignee: Kent Yao
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.2.0, 4.1.2
>
> Attachments: Jobs.png, Stages.png, htmls.zip
>
>
> The DAG is not properly rendered
>
> {code:java}
> scala> sc.range(0, 10, 1, 4).count()
> val res0: Long = 10 {code}
>
> It is broken in both Jobs and Stages
> Jobs
> {code:java}
>
> digraph G {
> id="graph_0";
> subgraph graph_stage_0 {
> id="graph_stage_0";
> isCluster="true";
> label="Stage 0";
> subgraph cluster_0 {
> id="cluster_0";
> isCluster="true";
> label="range";
> 0 [id="node_0" labelType="html" label="ParallelCollectionRDD [0]<br>range at <console>:1}"];
> 1 [id="node_1" labelType="html" label="MapPartitionsRDD [1]<br>range at <console>:1}"];
> }
> }
> 0->1;
> }
>
>
>
>
> {code}
>
> Stages
> {code:java}
>
> digraph G {
> id="graph_0";
> subgraph graph_stage_0 {
> id="graph_stage_0";
> isCluster="true";
> label="Stage 0";
> subgraph cluster_0 {
> id="cluster_0";
> isCluster="true";
> label="range";
> 0 [id="node_0" labelType="html" label="ParallelCollectionRDD [0]<br>range at <console>:1}"];
> 1 [id="node_1" labelType="html" label="MapPartitionsRDD [1]<br>range at <console>:1}"];
> }
> }
> 0->1;
> }
>
>
>
>
> {code}
>
> I checked with Firefox, Edge and Chrome, Spark-Shell and PySpark, the results are similar.
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