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https://issues.apache.org/jira/browse/HDFS-1098?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amareshwari Sriramadasu resolved HDFS-1098.
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Resolution: Won't Fix
DistributedCache is changed to use new api in branch 0.21 through
MAPREDUCE-898. Also, the documentation is updated.
The above TaskRunner code is internal, not the new api. Users are not supposed
call getLocalCache().
> Fix Javadoc for DistributedCache usage
> --------------------------------------
>
> Key: HDFS-1098
> URL: https://issues.apache.org/jira/browse/HDFS-1098
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: documentation
> Affects Versions: 0.20.2
> Reporter: Ted Yu
> Fix For: 0.20.3
>
> Original Estimate: 0.02h
> Remaining Estimate: 0.02h
>
> The Javadoc for using DistributedCache isn't up-to-date with code:
> * JobConf job = new JobConf();
> * DistributedCache.addCacheFile(new URI("/myapp/lookup.dat#lookup.dat"),
> * job);
> This is the new API:
> public static void addCacheFile(URI uri, Configuration conf) {
> Javadoc should (partially) reflect the actual usage from TaskRunner:
> p[i] = DistributedCache.getLocalCache(files[i], conf,
> new Path(baseDir),
> fileStatus,
> false, Long.parseLong(
> fileTimestamps[i]),
> new Path(workDir.
> getAbsolutePath()),
> false);
> }
> DistributedCache.setLocalFiles(conf, stringifyPathArray(p));
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