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[HADOOP-9747] Reduce unnecessary UGI synchronization
...Jstacks of heavily loaded NNs show up to dozens of threads blocking in the UGI....
, 2016-06-05, 05:50
[HADOOP-9317] User cannot specify a kerberos keytab for commands
...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...
, 2016-06-05, 05:49
[HADOOP-10942] Globbing optimizations and regression fix
...When globbing was commonized to support both filesystem and filecontext, it regressed a fix that prevents an intermediate glob that matches a file from throwing a confusing permissions excep...
, 2016-05-13, 20:31
[HADOOP-11628] SPNEGO auth does not work with CNAMEs in JDK8
...Pre-JDK8, GSSName auto-canonicalized the hostname when constructing the principal for SPNEGO. JDK8 no longer does this which breaks the use of user-friendly CNAMEs for services....
, 2016-03-30, 10:26
[HADOOP-8087] Paths that start with a double slash cause "No filesystem for scheme: null" errors
...Path is incorrectly parsing //dir/path in a very unexpected way. While it should translate to the directory $fs.default.name}/dir/path, it instead discards the //dir and returns$fs.def...
, 2016-03-30, 01:17
[HADOOP-9645] KerberosAuthenticator NPEs on connect error
...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...
, 2016-03-24, 16:48
[HADOOP-10301] AuthenticationFilter should return Forbidden for failed authentication
...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...
, 2016-03-10, 00:44
[HADOOP-8779] Use tokens regardless of authentication type
...Security is a combination of authentication and authorization (tokens). Authorization may be granted independently of the authentication model. Tokens should be used regardless o...
, 2016-02-02, 01:06
[HADOOP-9516] Enable spnego filters only if kerberos is enabled
...Spnego filters are currently enabled if security is enabled - which is predicated on security=kerberos. With the advent of the PLAIN authentication method, the filters should only be e...
, 2015-11-23, 03:01
[HADOOP-9789] Support server advertised kerberos principals
...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...
, 2015-11-11, 22:08
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