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author | Kay Ousterhout <kayousterhout@gmail.com> | 2014-07-20 20:18:18 -0700 |
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committer | Kay Ousterhout <kayousterhout@gmail.com> | 2014-07-20 20:18:18 -0700 |
commit | f6e7302cb49ee227aed537026d19f68528051dfd (patch) | |
tree | 2afec480ec3bc9afa061845e75d1b18de6d29b29 | |
parent | b86db517b6a2795f687211205b6a14c8685873eb (diff) | |
download | spark-f6e7302cb49ee227aed537026d19f68528051dfd.tar.gz spark-f6e7302cb49ee227aed537026d19f68528051dfd.tar.bz2 spark-f6e7302cb49ee227aed537026d19f68528051dfd.zip |
Improve scheduler delay tooltip.
As a result of shivaram's experience debugging long scheduler delay, I think we should improve the tooltip to point people in the right direction if scheduler delay is large.
Author: Kay Ousterhout <kayousterhout@gmail.com>
Closes #1488 from kayousterhout/better_tooltips and squashes the following commits:
22176fd [Kay Ousterhout] Improve scheduler delay tooltip.
-rw-r--r-- | core/src/main/scala/org/apache/spark/ui/ToolTips.scala | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/core/src/main/scala/org/apache/spark/ui/ToolTips.scala b/core/src/main/scala/org/apache/spark/ui/ToolTips.scala index 37708d7548..9ced9b8107 100644 --- a/core/src/main/scala/org/apache/spark/ui/ToolTips.scala +++ b/core/src/main/scala/org/apache/spark/ui/ToolTips.scala @@ -20,9 +20,9 @@ package org.apache.spark.ui private[spark] object ToolTips { val SCHEDULER_DELAY = """Scheduler delay includes time to ship the task from the scheduler to - the executor, and time the time to send a message from the executor to the scheduler stating - that the task has completed. When the scheduler becomes overloaded, task completion messages - become queued up, and scheduler delay increases.""" + the executor, and time to send the task result from the executor to the scheduler. If + scheduler delay is large, consider decreasing the size of tasks or decreasing the size + of task results.""" val INPUT = "Bytes read from Hadoop or from Spark storage." |