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https://issues.apache.org/jira/browse/SPARK-26311?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16716021#comment-16716021
]
ASF GitHub Bot commented on SPARK-26311:
----------------------------------------
HyukjinKwon commented on a change in pull request #23260: [SPARK-26311][YARN]
New feature: custom log URL for stdout/stderr
URL: https://github.com/apache/spark/pull/23260#discussion_r240455039
##########
File path:
resource-managers/yarn/src/main/scala/org/apache/spark/deploy/yarn/ExecutorRunnable.scala
##########
@@ -246,13 +246,56 @@ private[yarn] class ExecutorRunnable(
sys.env.get("SPARK_USER").foreach { user =>
val containerId = ConverterUtils.toString(c.getId)
val address = c.getNodeHttpAddress
- val baseUrl =
s"$httpScheme$address/node/containerlogs/$containerId/$user"
- env("SPARK_LOG_URL_STDERR") = s"$baseUrl/stderr?start=-4096"
- env("SPARK_LOG_URL_STDOUT") = s"$baseUrl/stdout?start=-4096"
+ sparkConf.get(config.CUSTOM_LOG_URL) match {
+ case Some(customUrl) =>
+ val pathVariables =
ExecutorRunnable.buildPathVariables(httpScheme, address,
+ YarnConfiguration.getClusterId(conf), containerId, user)
+ val envNameToFileNameMap = Map("SPARK_LOG_URL_STDERR" -> "stderr",
+ "SPARK_LOG_URL_STDOUT" -> "stdout")
+ val logUrls = ExecutorRunnable.replaceLogUrls(customUrl,
pathVariables,
+ envNameToFileNameMap)
+
+ logUrls.foreach { case (envName, url) =>
+ env(envName) = url
+ }
+ case None =>
+ val baseUrl =
s"$httpScheme$address/node/containerlogs/$containerId/$user"
+ env("SPARK_LOG_URL_STDERR") = s"$baseUrl/stderr?start=-4096"
+ env("SPARK_LOG_URL_STDOUT") = s"$baseUrl/stdout?start=-4096"
+ }
}
}
env
}
}
+
+private[yarn] object ExecutorRunnable {
+ val LOG_URL_PATTERN_HTTP_SCHEME = "{{HttpScheme}}"
+ val LOG_URL_PATTERN_NODE_HTTP_ADDRESS = "{{NodeHttpAddress}}"
+ val LOG_URL_PATTERN_CLUSTER_ID = "{{ClusterId}}"
+ val LOG_URL_PATTERN_CONTAINER_ID = "{{ContainerId}}"
+ val LOG_URL_PATTERN_USER = "{{User}}"
+ val LOG_URL_PATTERN_FILE_NAME = "{{FileName}}"
+
+ def buildPathVariables(httpScheme: String, nodeHttpAddress: String,
clusterId: String,
Review comment:
Strictly, the guide line itself does not explicitly mention about two lines
- it says it's okay if it fits within 2 lines (see
https://github.com/databricks/scala-style-guide/pull/64#issuecomment-344609090).
I intentionally avoided this because some of codes in some components do not
comply this.
However, strictly we should better stick to two spaces indentation whenever
possible per https://github.com/databricks/scala-style-guide#indent
> Use 2-space indentation in general.
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> [YARN] New feature: custom log URL for stdout/stderr
> ----------------------------------------------------
>
> Key: SPARK-26311
> URL: https://issues.apache.org/jira/browse/SPARK-26311
> Project: Spark
> Issue Type: Improvement
> Components: YARN
> Affects Versions: 2.4.0
> Reporter: Jungtaek Lim
> Priority: Major
>
> Spark has been setting static log URLs for YARN application, which points to
> NodeManager webapp. Normally it would work for both running apps and finished
> apps, but there're also other approaches on maintaining application logs,
> like having external log service which enables to avoid application log url
> to be a deadlink when NodeManager is not accessible. (Node decommissioned,
> elastic nodes, etc.)
> Spark can provide a new configuration for custom log url on YARN mode, which
> end users can set it properly to point application log to external log
> service.
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