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[HADOOP-9317] User cannot specify a kerberos keytab for commands - Hadoop - [issue]
...UserGroupInformation only allows kerberos users to be logged in via the ticket cache when running hadoop commands.  UGI allows a keytab to be used, but it's only exposed programatically...
http://issues.apache.org/jira/browse/HADOOP-9317    Author: Daryn Sharp, 2015-02-05, 19:06
[HADOOP-9645] KerberosAuthenticator NPEs on connect error - Hadoop - [issue]
...A NPE occurs if there's a kerberos error during initial connect.  In this case, the NN was using a HTTP service principal with a stale kvno.  It causes webhdfs to fail in a non-use...
http://issues.apache.org/jira/browse/HADOOP-9645    Author: Daryn Sharp, 2015-02-05, 13:42
[HADOOP-10941] Proxy user verification NPEs if remote host is unresolvable - Hadoop - [issue]
...A null is passed to the impersonation providers for the remote address if it is unresolvable.  DefaultImpersationProvider will NPE, ipc will close the connection immediately (correct be...
http://issues.apache.org/jira/browse/HADOOP-10941    Author: Daryn Sharp, 2015-01-14, 18:23
[HADOOP-9363] AuthenticatedURL will NPE if server closes connection - Hadoop - [issue]
...A NPE occurs if the server unexpectedly closes the connection for an AuthenticatedURL w/o sending a response....
http://issues.apache.org/jira/browse/HADOOP-9363    Author: Daryn Sharp, 2014-12-21, 02:17
[HADOOP-9789] Support server advertised kerberos principals - Hadoop - [issue]
...The RPC client currently constructs the kerberos principal based on the a config value, usually with an _HOST substitution.  This means the service principal must match the hostname the...
http://issues.apache.org/jira/browse/HADOOP-9789    Author: Daryn Sharp, 2014-12-18, 11:47
[HADOOP-10944] AbstractFileSystem may not return correct home directory - Hadoop - [issue]
...AbstractFileSystem#getHomeDirectory uses the property "user.name" instead of the current UGI user.  This is erroneous for proxy users, users with a TGT principal not matching the local ...
http://issues.apache.org/jira/browse/HADOOP-10944    Author: Daryn Sharp, 2014-09-04, 03:41
[HADOOP-10301] AuthenticationFilter should return Forbidden for failed authentication - Hadoop - [issue]
...The hadoop-auth AuthenticationFilter returns a 401 Unauthorized without a WWW-Authenticate headers.  The is illegal per the HTTP RPC and causes a NPE in the HttpUrlConnection.This is ha...
http://issues.apache.org/jira/browse/HADOOP-10301    Author: Daryn Sharp, 2014-09-04, 02:16
[HADOOP-9868] Server must not advertise kerberos realm - Hadoop - [issue]
...HADOOP-9789 broke kerberos authentication by making the RPC server advertise the kerberos service principal realm.  SASL clients and servers do not support specifying a realm, so it mus...
http://issues.apache.org/jira/browse/HADOOP-9868    Author: Daryn Sharp, 2014-09-04, 00:49
[HADOOP-10146] Workaround JDK7 Process fd close bug - Hadoop - [issue]
...JDK7's Process output streams have an async fd-close race bug.  This manifests as commands run via o.a.h.u.Shell causing threads to hang, OOM, or cause other bizarre behavior.  The...
http://issues.apache.org/jira/browse/HADOOP-10146    Author: Daryn Sharp, 2014-09-04, 00:43
[HADOOP-10129] Distcp may succeed when it fails - Hadoop - [issue]
...Distcp uses IOUtils.cleanup to close its output streams w/o previously attempting to close the streams.  IOUtils.cleanup will swallow close or implicit flush on close exceptions.  ...
http://issues.apache.org/jira/browse/HADOOP-10129    Author: Daryn Sharp, 2014-09-04, 00:43
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NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB