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[HDFS-4671] DFSAdmin fetchImage should require superuser privilege even when security is not enabled - HDFS - [issue]
...When security is not enabled, non-superusers can fetch the fsimage. This is problematic because the non-superusers can then process the fsimage for contents the user should not have access t...
http://issues.apache.org/jira/browse/HDFS-4671    Author: Stephen Chu, 2013-04-24, 16:53
[HDFS-3483] Better error message when hdfs fsck is run against a ViewFS config - HDFS - [issue]
...I'm running a HA + secure + federated cluster.When I run "hdfs fsck /nameservices/ha-nn-uri/", I see the following:bash-3.2$ hdfs fsck /nameservices/ha-nn-uri/FileSystem is viewfs://oracle/D...
http://issues.apache.org/jira/browse/HDFS-3483    Author: Stephen Chu, 2013-02-06, 17:05
[HDFS-3031] HA: Fix complete() and getAdditionalBlock() RPCs to be idempotent. - HDFS - [issue]
...I executed section 3.4 of Todd's HA test plan. https://issues.apache.org/jira/browse/HDFS-16231. A large file upload is started.2. While the file is being uploaded, the administrator kills t...
http://issues.apache.org/jira/browse/HDFS-3031    Author: Stephen Chu, 2013-02-01, 00:10
[HDFS-4237] Add unit tests for HTTP-based filesystems against secure MiniDFSCluster - HDFS - [issue]
...Now that we can start a secure MiniDFSCluster (HADOOP-9004), we need more security unit tests.A good area to add secure tests is the HTTP-based filesystems (WebHDFS, HttpFs)....
http://issues.apache.org/jira/browse/HDFS-4237    Author: Stephen Chu, 2013-01-23, 02:18
[HDFS-4295] Using port 1023 should be valid when starting Secure DataNode - HDFS - [issue]
...In SecureDataNodeStarter:if ((ss.getLocalPort() >= 1023 || listener.getPort() >= 1023) &&        UserGroupInformation.isSecurityEnabled()) {  ...
http://issues.apache.org/jira/browse/HDFS-4295    Author: Stephen Chu, 2012-12-11, 14:09
[HDFS-4281] NameNode recovery does not detect NN RPC address on HA cluster - HDFS - [issue]
...On a shut down HA cluster, I ran "hdfs namenode -recover" and encountered:You have selected Metadata Recovery mode.  This mode is intended to recover lost metadata on a corrupt filesyst...
http://issues.apache.org/jira/browse/HDFS-4281    Author: Stephen Chu, 2012-12-06, 02:05
[HDFS-4026] Improve error message for dfsadmin -refreshServiceAcl - HDFS - [issue]
...I ran hdfs dfsadmin -refreshServiceAcl on a cluster that did not have Service Level Authorization enabled:[schu@cs-10-20-90-154 ~]$ hdfs dfsadmin -refreshServiceAclrefreshServiceAcl: [schu@c...
http://issues.apache.org/jira/browse/HDFS-4026    Author: Stephen Chu, 2012-11-20, 21:40
[HDFS-3813] Log error message if security and WebHDFS are enabled but principal/keytab are not configured - HDFS - [issue]
...I configured a secure HDFS cluster, but failed to start the NameNode because I had enabled WebHDFS without specifying dfs.web.authentication.kerberos.principal in hdfs-site.xml.In the NN log...
http://issues.apache.org/jira/browse/HDFS-3813    Author: Stephen Chu, 2012-11-16, 23:22
[HDFS-3921] NN will prematurely consider blocks missing when entering active state while still in safe mode - HDFS - [issue]
...I shut down all the HDFS daemons in an Highly Available (automatic failover) cluster.Then I started one NN and it transitioned it to active. No DNs were started, and I saw the red warning li...
http://issues.apache.org/jira/browse/HDFS-3921    Author: Stephen Chu, 2012-11-13, 14:03
[HDFS-4048] Use ERROR instead of INFO for volume failure logs - HDFS - [issue]
...I misconfigured the permissions of the DataNode data directories (they were owned by root, instead of hdfs).I wasn't aware of this misconfiguration until a few days later. I usually search t...
http://issues.apache.org/jira/browse/HDFS-4048    Author: Stephen Chu, 2012-11-09, 14:02
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