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[HDFS-8193] Add the ability to delay replica deletion for a period of time - HDFS - [issue]
...When doing maintenance on an HDFS cluster, users may be concerned about the possibility of administrative mistakes or software bugs deleting replicas of blocks that cannot easily be restored...
http://issues.apache.org/jira/browse/HDFS-8193    Author: Aaron T. Myers, 2015-05-27, 18:36
[HDFS-5223] Allow edit log/fsimage format changes without changing layout version - HDFS - [issue]
...Currently all HDFS on-disk formats are version by the single layout version. This means that even for changes which might be backward compatible, like the addition of a new edit log op code,...
http://issues.apache.org/jira/browse/HDFS-5223    Author: Aaron T. Myers, 2015-05-19, 18:54
[HDFS-4448] Allow HA NN to start in secure mode with wildcard address configured - HDFS - [issue]
...Currently if one tries to configure HA NNs use the wildcard HTTP address when security is enabled, the NN will fail to start with an error like the following:java.lang.IllegalArgumentExcepti...
http://issues.apache.org/jira/browse/HDFS-4448    Author: Aaron T. Myers, 2015-04-23, 14:38
[HDFS-8194] Add administrative tool to be able to examine the NN's view of DN storages - HDFS - [issue]
...The NN has long had facilities to be able to list all of the DNs that are registered with it. It would be great if there were an administrative tool be able to list all of the individual sto...
http://issues.apache.org/jira/browse/HDFS-8194    Author: Aaron T. Myers, 2015-04-22, 21:55
[HDFS-2350] Secure DN doesn't print output to console when started interactively - HDFS - [issue]
...If one starts a secure DN (using jsvc) interactively, the output is not printed to the console, but instead ends up in $HADOOP_LOG_DIR/jsvc.err and $HADOOP_LOG_DIR/jsvc.out....
http://issues.apache.org/jira/browse/HDFS-2350    Author: Aaron T. Myers, 2015-03-16, 19:49
[HDFS-3745] fsck prints that it's using KSSL even when it's in fact using SPNEGO for authentication - HDFS - [issue]
...In branch-2 (which exclusively uses SPNEGO for HTTP authentication) and in branch-1 (which can optionally use SPNEGO for HTTP authentication), running fsck will print the following, which is...
http://issues.apache.org/jira/browse/HDFS-3745    Author: Aaron T. Myers, 2015-03-16, 16:40
[HDFS-3349] DFSAdmin fetchImage command should initialize security credentials - HDFS - [issue]
...The `hdfs dfsadmin -fetchImage' command should fetch the fsimage using the appropriate credentials if security is enabled....
http://issues.apache.org/jira/browse/HDFS-3349    Author: Aaron T. Myers, 2015-03-16, 16:27
[HDFS-2875] Clean up LeaseManager#changeLease - HDFS - [issue]
...The code for LeaseManager#changeLease and the associated FSNamesystem#unprotectedChangeLease is very fragile, and can be improved in several ways....
http://issues.apache.org/jira/browse/HDFS-2875    Author: Aaron T. Myers, 2015-03-10, 04:36
[HDFS-2782] HA: Support multiple shared edits dirs - HDFS - [issue]
...Supporting multiple shared dirs will improve availability (eg see HDFS-2769). You may want to use multiple shared dirs on a single filer (eg for better fault isolation) or because you want t...
http://issues.apache.org/jira/browse/HDFS-2782    Author: Aaron T. Myers, 2015-03-10, 04:36
[HDFS-2306] NameNode web UI should show information about recent checkpoints - HDFS - [issue]
...It would be nice if the NN web UI showed the 2NN address, timestamp, number of edits, etc. of the last few checkpoints....
http://issues.apache.org/jira/browse/HDFS-2306    Author: Aaron T. Myers, 2015-03-01, 08:04
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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