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[HADOOP-10855] Allow Text to be read with a known length - Hadoop - [issue]
...For the native task work (MAPREDUCE-2841) it is useful to be able to store strings in a different fashion than the default (varint-prefixed) serialization. We should provide a "read" method ...
http://issues.apache.org/jira/browse/HADOOP-10855    Author: Todd Lipcon, 2014-07-23, 15:58
[HADOOP-6069] Remove explicit dynamic loading of libz in native code - Hadoop - [issue]
...The native zlib code currently uses dlopen/dlsym to dynamically load libz. This used to make sense when there was an lzo option (so you could load libhadoop for lzo purposes without requirin...
http://issues.apache.org/jira/browse/HADOOP-6069    Author: Todd Lipcon, 2014-07-22, 22:43
[HADOOP-5888] Improve test run time by avoiding 0.0.0.0 lookups - Hadoop - [issue]
...HADOOP-3694 discusses the fact that 0.0.0.0 is slower to reverse than 127.0.0.1 on a lot of systems. The replacing of 0.0.0.0 with 127.0.0.1 was only partially completed in that ticket. This...
http://issues.apache.org/jira/browse/HADOOP-5888    Author: Todd Lipcon, 2014-07-22, 20:51
[HADOOP-10859] Native implementation of java Checksum interface - Hadoop - [issue]
...Some parts of our code such as IFileInputStream/IFileOutputStream use the java Checksum interface to calculate/verify checksums. Currently we don't have a native implementation of these. For...
http://issues.apache.org/jira/browse/HADOOP-10859    Author: Todd Lipcon, 2014-07-18, 16:40
[HADOOP-8158] Interrupting hadoop fs -put from the command line causes a LeaseExpiredException - Hadoop - [issue]
...If you run "hadoop fs -put - foo", write a few lines, then ^C it from the shell, about half the time you will get a LeaseExpiredException. It seems like the shell is first calling delete() o...
http://issues.apache.org/jira/browse/HADOOP-8158    Author: Todd Lipcon, 2014-07-13, 11:37
[HADOOP-6947] Kerberos relogin should set refreshKrb5Config to true - Hadoop - [issue]
...In working on securing a daemon that uses two different principals from different threads, I found that I wasn't able to login from a second keytab after I'd logged in from the first. This i...
http://issues.apache.org/jira/browse/HADOOP-6947    Author: Todd Lipcon, 2014-06-20, 11:15
[HADOOP-9618] Add thread which detects JVM pauses - Hadoop - [issue]
...Often times users struggle to understand what happened when a long JVM pause (GC or otherwise) causes things to malfunction inside a Hadoop daemon. For example, a long GC pause while logging...
http://issues.apache.org/jira/browse/HADOOP-9618    Author: Todd Lipcon, 2014-05-07, 21:41
[HADOOP-8608] Add Configuration API for parsing time durations - Hadoop - [issue]
...Hadoop has a lot of configurations which specify durations or intervals of time. Unfortunately these different configurations have little consistency in units - eg some are in milliseconds, ...
http://issues.apache.org/jira/browse/HADOOP-8608    Author: Todd Lipcon, 2014-03-05, 15:42
[HADOOP-9898] Set SO_KEEPALIVE on all our sockets - Hadoop - [issue]
...We recently saw an issue where network issues between slaves and the NN caused ESTABLISHED TCP connections to pile up and leak on the NN side. It looks like the RST packets were getting drop...
http://issues.apache.org/jira/browse/HADOOP-9898    Author: Todd Lipcon, 2014-02-24, 20:58
[HADOOP-6408] Add a /conf servlet to dump running configuration - Hadoop - [issue]
...HADOOP-6184 added a command line flag to dump the running configuration. It would be great for cluster troubleshooting to provide access to this as a servlet, preferably in both JSON and XML...
http://issues.apache.org/jira/browse/HADOOP-6408    Author: Todd Lipcon, 2014-02-04, 01:45
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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