[spark] branch branch-2.4 updated: [MINOR] Add requestHeaderSize debug log

[do...@apache.org]

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dongjoon pushed a commit to branch branch-2.4
in repository https://gitbox.apache.org/repos/asf/spark.git


The following commit(s) were added to refs/heads/branch-2.4 by this push:
     new ec6d0c9  [MINOR] Add requestHeaderSize debug log
ec6d0c9 is described below

commit ec6d0c9ab2a3cab586e73def9167a120780a2fbe
Author: Gabor Somogyi <ga...@gmail.com>
AuthorDate: Wed Jul 3 09:34:31 2019 -0700

    [MINOR] Add requestHeaderSize debug log
    
    ## What changes were proposed in this pull request?
    
    `requestHeaderSize` is added in https://github.com/apache/spark/pull/23090 and applies to Spark + History server UI as well. Without debug log it's hard to find out on which side what configuration is used.
    
    In this PR I've added a log message which prints out the value.
    
    ## How was this patch tested?
    
    Manually checked log files.
    
    Closes #25045 from gaborgsomogyi/SPARK-26118.
    
    Authored-by: Gabor Somogyi <ga...@gmail.com>
    Signed-off-by: Dongjoon Hyun <dh...@apple.com>
    (cherry picked from commit 0b6c2c259c1ed109a824b678c9ccbd9fd767d2fe)
    Signed-off-by: Dongjoon Hyun <dh...@apple.com>
---
 core/src/main/scala/org/apache/spark/ui/JettyUtils.scala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/src/main/scala/org/apache/spark/ui/JettyUtils.scala b/core/src/main/scala/org/apache/spark/ui/JettyUtils.scala
index 316af9b..4a168cf 100644
--- a/core/src/main/scala/org/apache/spark/ui/JettyUtils.scala
+++ b/core/src/main/scala/org/apache/spark/ui/JettyUtils.scala
@@ -357,7 +357,9 @@ private[spark] object JettyUtils extends Logging {
         (connector, connector.getLocalPort())
       }
       val httpConfig = new HttpConfiguration()
-      httpConfig.setRequestHeaderSize(conf.get(UI_REQUEST_HEADER_SIZE).toInt)
+      val requestHeaderSize = conf.get(UI_REQUEST_HEADER_SIZE).toInt
+      logDebug(s"Using requestHeaderSize: $requestHeaderSize")
+      httpConfig.setRequestHeaderSize(requestHeaderSize)
 
       // If SSL is configured, create the secure connector first.
       val securePort = sslOptions.createJettySslContextFactory().map { factory =>


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