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HDFS-11466. Change dfs.namenode.write-lock-reporting-threshold-ms default from 1000ms to 5000ms. Contributed by Andrew Wang. 

(cherry picked from commit d269b488a7)
(cherry picked from commit 5fb785e154)
(cherry picked from commit 265ddb20c3)
This commit is contained in:
Zhe Zhang 2017-02-28 09:00:49 -08:00
parent c2a4ce7717
commit 33f4263345
3 changed files with 5 additions and 2 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -72,6 +72,9 @@ Release 2.7.4 - UNRELEASED
HDFS-11333. Print a user friendly error message when plugins are not found. (Wei-Chiu Chuang)
HDFS-11466. Change dfs.namenode.write-lock-reporting-threshold-ms default
from 1000ms to 5000ms. (wang via zhz)
OPTIMIZATIONS
HDFS-10896. Move lock logging logic from FSNamesystem into FSNamesystemLock.

2
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java
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@ -385,7 +385,7 @@ public class DFSConfigKeys extends CommonConfigurationKeys {
// event to be logged
public static final String DFS_NAMENODE_WRITE_LOCK_REPORTING_THRESHOLD_MS_KEY =
"dfs.namenode.write-lock-reporting-threshold-ms";
public static final long DFS_NAMENODE_WRITE_LOCK_REPORTING_THRESHOLD_MS_DEFAULT = 1000L;
public static final long DFS_NAMENODE_WRITE_LOCK_REPORTING_THRESHOLD_MS_DEFAULT = 5000L;
public static final String DFS_NAMENODE_READ_LOCK_REPORTING_THRESHOLD_MS_KEY =
"dfs.namenode.read-lock-reporting-threshold-ms";
public static final long DFS_NAMENODE_READ_LOCK_REPORTING_THRESHOLD_MS_DEFAULT = 5000L;

2
hadoop-hdfs-project/hadoop-hdfs/src/main/resources/hdfs-default.xml
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@ -2338,7 +2338,7 @@
<property>
<name>dfs.namenode.write-lock-reporting-threshold-ms</name>
<value>1000</value>
<value>5000</value>
<description>When a write lock is held on the namenode for a long time,
this will be logged as the lock is released. This sets how long the
lock must be held for logging to occur.