HI All,
In hadoop-2.2.0, if you execute getconf for exclude and include file, it will
return this error message:
[hadoop@fphd1 hadoop-2.2.0]$ bin/hdfs getconf -excludeFile
Configuration DFSConfigKeys.DFS_HOSTS_EXCLUDE is missing.
[hadoop@fphd1 hadoop-2.2.0]$ bin/hdfs getconf -includeFile
Configuration DFSConfigKeys.DFS_HOSTS is missing.
I found out the root cause is very simple, it's because the source code of
org/apache/hadoop/hdfs/tools/GetConf.java hard coded it to
"DFSConfigKeys.DFS_HOSTS" and "DFSConfigKeys.DFS_HOSTS_EXCLUDE"
map.put(INCLUDE_FILE.getName().toLowerCase(),
new CommandHandler("DFSConfigKeys.DFS_HOSTS"));
map.put(EXCLUDE_FILE.getName().toLowerCase(),
new CommandHandler("DFSConfigKeys.DFS_HOSTS_EXCLUDE"));
A simple fix would be to remove the quote:
map.put(INCLUDE_FILE.getName().toLowerCase(),
new CommandHandler(DFSConfigKeys.DFS_HOSTS));
map.put(EXCLUDE_FILE.getName().toLowerCase(),
new CommandHandler(DFSConfigKeys.DFS_HOSTS_EXCLUDE));
I don't know if someone already post this issue in JIRA. If not, I will be glad
to open a request.
Best regards,
Henry
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