hadoop shell producing unexpected output to stdout
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Key: HADOOP-7039
URL: https://issues.apache.org/jira/browse/HADOOP-7039
Project: Hadoop Common
Issue Type: Bug
Components: security, util
Affects Versions: 0.21.0
Reporter: Charles Thayer
Priority: Minor
Using "hadoop fs -dus foobar/*" I found unexpected output to stdout as the
first line prints some debugging information about kerberos tokens. This is
breaking scripts which used to work with 0.20.x.
Retrieving token from: https://1.2.3.4:50470/getDelegationToken
hftp://blah.yahoo.net:50070/foo/bang 685256
hftp://blah.yahoo.net:50070/foo/bar 685256
hftp://blah.yahoo.net:50070/foo/baz 685256
[...]
Which appears to be coming from this line
./hadoop-0.21.0/hdfs/src/java/org/apache/hadoop/hdfs/tools/DelegationTokenFetcher.java:151:
System.out.println("Retrieving token from: " +
I also see a few other cases here which should be changed to use a logging
service, changed to System.err, or removed:
grep -n -2 System.out
./hadoop-0.21.0/hdfs/src/java/org/apache/hadoop/hdfs/tools/DelegationTokenFetcher.java
90-
91- out.flush();
92: System.out.println("Succesfully wrote token of size " +
93- out.size() + " bytes to "+ args[0]);
94- } catch (IOException ioe) {
95: System.out.println("Exception encountered:\n" +
96- StringUtils.stringifyException(ioe));
97- } finally {
--
149-
150- try {
151: System.out.println("Retrieving token from: " +
152- nnAddr + DelegationTokenServlet.PATH_SPEC + ugiPostfix);
153- URL remoteURL = new URL(nnAddr + DelegationTokenServlet.PATH_SPEC +
ugiPostfix);
--
161- ts.write(file);
162- file.flush();
163: System.out.println("Successfully wrote token of " + file.size()
164- + " bytes to " + filename);
165- } catch (Exception e) {
--
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