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[HDFS-7344] Erasure Coding worker and support in DataNode - HDFS - [issue]
...According to HDFS-7285 and the design, this handles DataNode side extension and related support for Erasure Coding, and implements ECWorker. It mainly covers the following aspects, and separ...
http://issues.apache.org/jira/browse/HDFS-7344    Author: Kai Zheng, 2014-11-20, 07:09
[HDFS-7345] Local Repairable Codes (LRC) - HDFS - [issue]
...HDFS-7285 proposes to support Erasure Coding inside HDFS, supports multiple Erasure Coding codecs via pluggable codec framework (HDFS-7337) and implements Reed Solomon code by default. This ...
http://issues.apache.org/jira/browse/HDFS-7345    Author: Kai Zheng, 2014-11-13, 15:06
[HDFS-7353] Common Erasure Coder API - HDFS - [issue]
...This is to abstract and define common coder API across different codec algorithms like RS, XOR and etc. Such API can be implemented by utilizing various library support, such as Intel ISA li...
http://issues.apache.org/jira/browse/HDFS-7353    Author: Kai Zheng, 2014-11-12, 15:11
[HDFS-7343] A comprehensive and flexible storage policy engine - HDFS - [issue]
...As discussed in HDFS-7285, it would be better to have a comprehensive and flexible storage policy engine considering file attributes, metadata, data temperature, storage type, EC codec, avai...
http://issues.apache.org/jira/browse/HDFS-7343    Author: Kai Zheng, 2014-11-07, 01:56
[HDFS-7371] Loading EC schemas from configuration - HDFS - [issue]
...System administrator can configure multiple EC codecs in hdfs-site.xml file, and codec instances or schemas in a new configuration file named ec-schema.xml in the conf folder. A codec can be...
http://issues.apache.org/jira/browse/HDFS-7371    Author: Kai Zheng, 2014-11-06, 10:21
[HDFS-7348] Process erasure decoding work - HDFS - [issue]
...As one of the tasks for HDFS-7344, this is to process decoding work, recovering data blocks according to block groups and codec schema;...
http://issues.apache.org/jira/browse/HDFS-7348    Author: Kai Zheng, 2014-11-04, 07:14
[HDFS-7346] Process erasure encoding work - HDFS - [issue]
...As one of the tasks for HDFS-7344, this is to process encoding work, calculating parity blocks as specified in block groups and codec schema....
http://issues.apache.org/jira/browse/HDFS-7346    Author: Kai Zheng, 2014-11-04, 07:14
[HDFS-5087] Allowing specific JAVA heap max setting for HDFS related services - HDFS - [issue]
...This allows specific JAVA heap max setting for HDFS related services as it does for YARN services, to be consistent....
http://issues.apache.org/jira/browse/HDFS-5087    Author: Kai Zheng, 2014-08-19, 00:57
[HDFS-5152] Avoiding redundant Kerberos login for Zookeeper client in ActiveStandbyElector - HDFS - [issue]
...Based on the fix in HADOOP-8315, it's possible to deploy a secured HA cluster with SASL support for connection with Zookeeper. However it requires extra configuration for JAAS to initialize ...
http://issues.apache.org/jira/browse/HDFS-5152    Author: Kai Zheng, 2013-09-05, 03:19
[HDFS-5129] JournalNode should also respect DFS_WEB_AUTHENTICATION_KERBEROS_KEYTAB_KEY as NN and SNN - HDFS - [issue]
...JournalNode should also respect DFS_WEB_AUTHENTICATION_KERBEROS_KEYTAB_KEY as NN and SNN. This will allow the same keytab file for NN, SNN and JournalNode regarding Spnego and would help sim...
http://issues.apache.org/jira/browse/HDFS-5129    Author: Kai Zheng, 2013-08-25, 01:35
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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