Yongjun Zhang created HDFS-7036:
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Summary: HDFS-6776 fix requires to upgrade insecure cluster, which
means quite some user pain
Key: HDFS-7036
URL: https://issues.apache.org/jira/browse/HDFS-7036
Project: Hadoop HDFS
Issue Type: Bug
Components: webhdfs
Reporter: Yongjun Zhang
Issuing command
{code}
hadoop fs -lsr webhdfs://<insecureCluster>
{code}
at a secure cluster side fails with message "Failed to get the token ...",
similar symptom as reported in HDFS-6776.
If the fix of HDFS-6776 is applied to only the secure cluster, doing
{code}
distcp webhdfs://<insecureCluster> <secureCluster>
{code}
would fail same way.
Basically running any application in secure cluster to access insecure cluster
via webhdfs would fail the same way, if the HDFS-6776 fix is not applied to the
insecure cluster.
This could be quite some user pain. Filing this jira for a solution to make
user's life easier.
One proposed solution was to add a msg-parsing mechanism in webhdfs, which is a
bit hacky. The other proposed solution is to do the same kind of hack at
application side, which means the same hack need to be applied in each
application.
Thanks [~daryn], [~wheat9], [~jingzhao], [~tucu00] and [~atm] for the
discussion in HDFS-6776.
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