YARN-4434. NodeManager Disk Checker parameter documentation is not correct. Contributed by Weiwei Yang.

(cherry picked from commit 16dc65811d4e0e7ab61c61295149848fe53ddd89)
(cherry picked from commit 925bb94d87db7e916ed380d4512225e796f9e03d)
(cherry picked from commit 80037436c683b3c36286acee68419fbd5b7af31b)

hadoop-yarn-project/CHANGES.txt

@@ -54,6 +54,9 @@ Release 2.6.3 - UNRELEASED
     YARN-4348. ZKRMStateStore.syncInternal shouldn't wait for sync completion for
     avoiding blocking ZK's event thread. (ozawa)
 
+    YARN-4434. NodeManager Disk Checker parameter documentation is not correct.
+    (Weiwei Yang via aajisaka)
+
 Release 2.6.2 - 2015-10-28
 
   INCOMPATIBLE CHANGES

hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/NodeManager.apt.vm

@@ -41,7 +41,7 @@ NodeManager Overview.
 *------------------+----------------+------------------+
 | yarn.nodemanager.disk-health-checker.min-healthy-disks | Float between 0-1 | The minimum fraction of disks that must pass the check for the NodeManager to mark the node as healthy; the default is 0.25 |
 *------------------+----------------+------------------+
-| yarn.nodemanager.disk-health-checker.max-disk-utilization-per-disk-percentage | Float between 0-100 | The maximum percentage of disk space that may be utilized before a disk is marked as unhealthy by the disk checker service. This check is run for every disk used by the NodeManager. The default value is 100 i.e. the entire disk can be used. |
+| yarn.nodemanager.disk-health-checker.max-disk-utilization-per-disk-percentage | Float between 0-100 | The maximum percentage of disk space that may be utilized before a disk is marked as unhealthy by the disk checker service. This check is run for every disk used by the NodeManager. The default value is 90 i.e. 90% of the disk can be used. |
 *------------------+----------------+------------------+
 | yarn.nodemanager.disk-health-checker.min-free-space-per-disk-mb | Integer | The minimum amount of free space that must be available on the disk for the disk checker service to mark the disk as healthy. This check is run for every disk used by the NodeManager. The default value is 0 i.e. the entire disk can be used. |
 *------------------+----------------+------------------+