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[HADOOP-8929] Add toString, other improvements for SampleQuantiles - Hadoop - [issue]
...The new SampleQuantiles class is useful in the context of benchmarks, but currently there is no way to print it out outside the context of a metrics sink. It would be nice to have a convenie...
http://issues.apache.org/jira/browse/HADOOP-8929    Author: Todd Lipcon, 2012-10-17, 14:21
[HADOOP-7149] Topology script should have some kind of timeout - Hadoop - [issue]
...We've seen an issue where a custom topology script was hanging for some external reason. This caused the NN to block during startup without any kind of clear indication what was going on.We ...
http://issues.apache.org/jira/browse/HADOOP-7149    Author: Todd Lipcon, 2012-10-15, 10:54
[HADOOP-8894] GenericTestUtils.waitFor should dump thread stacks on timeout - Hadoop - [issue]
...Many tests use this utility to wait for a condition to become true. In the event that it times out, we should dump all the thread stack traces, in case the timeout was due to a deadlock. Thi...
http://issues.apache.org/jira/browse/HADOOP-8894    Author: Todd Lipcon, 2012-10-09, 15:00
[HADOOP-7317] RPC.stopProxy doesn't actually close proxy - Hadoop - [issue]
...Discovered while investigating HDFS-1965, it turns out that the reference-counting done in WritableRpcEngine.ClientCache doesn't map one-to-one with open TCP connections. This means that it'...
http://issues.apache.org/jira/browse/HADOOP-7317    Author: Todd Lipcon, 2012-09-26, 20:15
[HADOOP-5640] Allow ServicePlugins to hook callbacks into key service events - Hadoop - [issue]
...HADOOP-5257 added the ability for NameNode and DataNode to start and stop ServicePlugin implementations at NN/DN start/stop. However, this is insufficient integration for some common use cas...
http://issues.apache.org/jira/browse/HADOOP-5640    Author: Todd Lipcon, 2012-09-21, 01:24
[HADOOP-8786] HttpServer continues to start even if AuthenticationFilter fails to init - Hadoop - [issue]
...As seen in HDFS-3904, if the AuthenticationFilter fails to initialize, the web server will continue to start up. We need to check for context initialization errors after starting the server....
http://issues.apache.org/jira/browse/HADOOP-8786    Author: Todd Lipcon, 2012-09-17, 20:12
Re: Test timeouts - Hadoop - [mail # dev]
...On Fri, Sep 14, 2012 at 11:23 AM, Aaron T. Myers  wrote:  I'd go one step further: If you add any test that isn't a true "unit" test (ie it relies on any mulithreading, either expl...
   Author: Todd Lipcon, 2012-09-14, 20:27
[HADOOP-8787] KerberosAuthenticationHandler should include missing property names in configuration - Hadoop - [issue]
...Currently, if the spnego keytab is missing from the configuration, the user gets an error like: "javax.servlet.ServletException: Principal not defined in configuration". This should be augme...
http://issues.apache.org/jira/browse/HADOOP-8787    Author: Todd Lipcon, 2012-09-13, 16:13
[HADOOP-8770] NN should not RPC to self to find trash defaults (causes deadlock) - Hadoop - [issue]
...When transitioning a SBN to active, I ran into the following situation: the TrashPolicy first gets loaded by an IPC Server Handler thread. The initialize function then tries to make an RPC t...
http://issues.apache.org/jira/browse/HADOOP-8770    Author: Todd Lipcon, 2012-09-06, 14:40
[expand - 2 more] - Re: Large feature development - Hadoop - [mail # general]
...On Mon, Sep 3, 2012 at 12:05 AM, Arun C Murthy  wrote:  I'm not sure I ignored what you wrote. I understand that Yahoo is deploying soon on one of their clusters. That's great news...
   Author: Todd Lipcon, 2012-09-03, 07:31
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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