Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/2432#discussion_r18314101
--- Diff: core/src/main/scala/org/apache/spark/SparkContext.scala ---
@@ -1278,8 +1298,8 @@ class SparkContext(config: SparkConf) extends Logging
{
private def postApplicationStart() {
// Note: this code assumes that the task scheduler has been
initialized and has contacted
// the cluster manager to get an application ID (in case the cluster
manager provides one).
- listenerBus.post(SparkListenerApplicationStart(appName,
taskScheduler.applicationId(),
- startTime, sparkUser))
+ listenerBus.post(SparkListenerApplicationStart(appName,
+ Some(taskScheduler.applicationId().toString), startTime, sparkUser))
--- End diff --
But old event logs (created before #1218) don't have that information. So
when the History Server reads those old entries, the code needs to account for
the fact that the app id may not exist.
Sure, it can be a "naked" variable and be set to null, but I was under the
impression that Spark preferred to use `Option` in those cases.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
