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Posted to issues@spark.apache.org by "Xu Chen (JIRA)" <ji...@apache.org> on 2015/08/28 11:34:45 UTC
[jira] [Commented] (SPARK-10149) Locality Level is ANY on "Details
for Stage" WebUI page
[ https://issues.apache.org/jira/browse/SPARK-10149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14718272#comment-14718272 ]
Xu Chen commented on SPARK-10149:
---------------------------------
I encounter this issue too at Spark 1.4.1 , so I look around code
1. If you use SparkStandalone you can config {code}SPARK_LOCAL_HOSTNAME{code} at {code}spark-env.sh{code}
2 If you deploy Spark on Yarn , you can config {code}yarn.nodemanager.bind-host{code} at {yarn-site.xml}
BTW, I hove confuse for this point , why spark do not automatically get hostname and hold a configuration which is hosename or ip address by manually?
> Locality Level is ANY on "Details for Stage" WebUI page
> -------------------------------------------------------
>
> Key: SPARK-10149
> URL: https://issues.apache.org/jira/browse/SPARK-10149
> Project: Spark
> Issue Type: Bug
> Components: Spark Core, Web UI
> Affects Versions: 1.4.1
> Reporter: Yun Zhao
>
> Locality Level is ANY on "Details for Stage" WebUI page
> When a sc.textFile(XX) program is running, Locality Level is ANY which should be NODE_LOCAL on stage 0.
> org.apache.spark.scheduler.TaskSetManager
> {quote}
> // Check for node-local tasks
> if (TaskLocality.isAllowed(locality, TaskLocality.NODE_LOCAL)) {
> for (index <- speculatableTasks if canRunOnHost(index)) {
> val locations = tasks(index).preferredLocations.map(_.host)
> if (locations.contains(host)) {
> speculatableTasks -= index
> return Some((index, TaskLocality.NODE_LOCAL))
> }
> }
> }
> {quote}
> The variable "locations" is hostname of HDFS split, which is from InetAddress.getHostName.
> The variable "host" is ip of Executor, which is from InetAddress.getLocalHost.getHostAddress.
> org.apache.spark.deploy.worker.WorkerArguments
> {quote}
> var host = Utils.localHostName()
> {quote}
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