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HDFS-3612. Single namenode image directory config warning can be improved. Contributed by Andy Isaacson. (harsh) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1361059 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Harsh J 2012-07-13 07:20:27 +00:00
parent bfa51a33d0
commit d9911e923d
2 changed files with 9 additions and 4 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -316,6 +316,9 @@ Branch-2 ( Unreleased changes )
HDFS-3306. fuse_dfs: don't lock release operations.
(Colin Patrick McCabe via eli)
HDFS-3612. Single namenode image directory config warning can
be improved. (Andy Isaacson via harsh)
OPTIMIZATIONS
HDFS-2982. Startup performance suffers when there are many edit log

10
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -393,12 +393,14 @@ public class FSNamesystem implements Namesystem, FSClusterStats,
throws IOException {
if (namespaceDirs.size() == 1) {
LOG.warn("Only one " + DFS_NAMENODE_NAME_DIR_KEY
+ " directory configured , beware data loss!");
LOG.warn("Only one image storage directory ("
+ DFS_NAMENODE_NAME_DIR_KEY + ") configured. Beware of dataloss"
+ " due to lack of redundant storage directories!");
}
if (namespaceEditsDirs.size() == 1) {
LOG.warn("Only one " + DFS_NAMENODE_EDITS_DIR_KEY
+ " directory configured , beware data loss!");
LOG.warn("Only one namespace edits storage directory ("
+ DFS_NAMENODE_EDITS_DIR_KEY + ") configured. Beware of dataloss"
+ " due to lack of redundant storage directories!");
}
FSImage fsImage = new FSImage(conf, namespaceDirs, namespaceEditsDirs);