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Re: Applying delta between two HDFS snapshot using hdfs command - Hadoop - [mail # user]
...Hi Manoj,    You're right, right now we do not have a complete snapshotrollback/restore functionality in HDFS. Thus users have to manuallycopy/delete files according to the sn...
   Author: Jing Zhao, 2014-04-14, 21:47
[HADOOP-10489] UserGroupInformation#getTokens and UserGroupInformation#addToken can lead to ConcurrentModificationException - Hadoop - [issue]
...Currently UserGroupInformation#getTokens and UserGroupInformation#addToken uses UGI's monitor to protect the iteration and modification of Credentials#tokenMap. Per discussion in HADOOP-1047...
http://issues.apache.org/jira/browse/HADOOP-10489    Author: Jing Zhao, 2014-04-10, 22:24
[HADOOP-10472] KerberosAuthenticator should use org.apache.commons.logging.LogFactory instead of org.slf4j.LoggerFactory - Hadoop - [issue]
http://issues.apache.org/jira/browse/HADOOP-10472    Author: Jing Zhao, 2014-04-08, 22:50
[HADOOP-10441] Namenode metric "rpc.RetryCache/NameNodeRetryCache.CacheHit" can't be correctly processed by Ganglia - Hadoop - [issue]
...The issue is reported by Dmytro Sen:Recently added Namenode metric "rpc.RetryCache/NameNodeRetryCache.CacheHit" can't be correctly processed by Ganglia because its name contains "/"Proposal:...
http://issues.apache.org/jira/browse/HADOOP-10441    Author: Jing Zhao, 2014-03-27, 14:02
[HADOOP-10295] Allow distcp to automatically identify the checksum type of source files and use it for the target - Hadoop - [issue]
...Currently while doing distcp, users can use "-Ddfs.checksum.type" to specify the checksum type in the target FS. This works fine if all the source files are using the same checksum type. If ...
http://issues.apache.org/jira/browse/HADOOP-10295    Author: Jing Zhao, 2014-02-22, 00:21
[HADOOP-8841] In trunk for command rm, the flags -[rR] and -f are not documented - Hadoop - [issue]
...We need to add description about the flags in the document for trunk....
http://issues.apache.org/jira/browse/HADOOP-8841    Author: Jing Zhao, 2014-02-04, 06:21
[HADOOP-10323] Allow users to do a dryrun of distcp - Hadoop - [issue]
...This jira plans to add a dryrun option in distcp which will make distcp go through all the steps except the real data copying. In this way, users can quickly understand potential issues....
http://issues.apache.org/jira/browse/HADOOP-10323    Author: Jing Zhao, 2014-02-04, 02:52
Re: NFS HDFS gateway w/ kerberos - Hadoop - [mail # user]
...HDFS-5804 (https://issues.apache.org/jira/browse/HDFS-5804) allows theNFS gateway to communicate with a secured Hadoop cluster usingKerberos. HDFS-5086 will add RPCSEC_GSS authentication sup...
   Author: Jing Zhao, 2014-01-31, 22:50
[HADOOP-10028] Malformed ssl-server.xml.example - Hadoop - [issue]
...The ssl-server.xml.example file has malformed XML leading to DN start error if the example file is reused.2013-10-07 16:52:01,639 FATAL conf.Configuration (Configuration.java:loadResource(21...
http://issues.apache.org/jira/browse/HADOOP-10028    Author: Jing Zhao, 2013-10-08, 14:35
[HADOOP-10017] Fix NPE in DFSClient#getDelegationToken when doing Distcp from a secured cluster to an insecured cluster - Hadoop - [issue]
...Currently if we run Distcp from a secured cluster and copy data to an insecured cluster, DFSClient#getDelegationToken will throw NPE when processing the NULL token returned by the NN in the ...
http://issues.apache.org/jira/browse/HADOOP-10017    Author: Jing Zhao, 2013-10-06, 15:15
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