| clear query|facets|time |
Search criteria: .
Results from 71 to 80 from
756 (0.274s).
|
|
|
Loading phrases to help you
refine your search...
|
|
[HADOOP-7714] Umbrella for usage of native calls to manage OS cache and readahead - Hadoop - [issue]
|
|
...Especially in shared HBase/MR situations, management of the OS buffer cache is important. Currently, running a big MR job will evict all of HBase's hot data from cache, causing HBase perform...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-7714
Author: Todd Lipcon,
2012-08-03, 10:19
|
|
|
[HADOOP-8640] DU thread transient failures propagate to callers - Hadoop - [issue]
|
|
...When running some stress tests, I saw a failure where the DURefreshThread failed due to the filesystem changing underneath it:org.apache.hadoop.util.Shell$ExitCodeException: du: cannot acces...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-8640
Author: Todd Lipcon,
2012-08-02, 07:28
|
|
|
[HADOOP-6133] ReflectionUtils performance regression - Hadoop - [issue]
|
|
...HADOOP-4187 introduced extra calls to Class.forName in ReflectionUtils.setConf. This caused a fairly large performance regression. Attached is a microbenchmark that shows the following timin...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-6133
Author: Todd Lipcon,
2012-07-30, 14:37
|
|
|
Re: Re: HDFS block physical location - Hadoop - [mail # user]
|
|
...Hi JS, You may also be interested in the following JIRA which proposes an API for block->disk mapping information: https://issues.apache.org/jira/browse/HDFS-3672 There has be...
|
|
|
Author: Todd Lipcon,
2012-07-25, 22:51
|
|
|
[HADOOP-7761] Improve performance of raw comparisons - Hadoop - [issue]
|
|
...Guava has a nice implementation of lexicographical byte-array comparison that uses sun.misc.Unsafe to compare unsigned byte arrays long-at-a-time. Their benchmarks show it as being 2x more C...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-7761
Author: Todd Lipcon,
2012-07-23, 17:52
|
|
|
[HADOOP-8609] IPC server logs a useless message when shutting down socket - Hadoop - [issue]
|
|
...I occasionally see this WARN message out of the NameNode:12/07/19 10:37:37 WARN ipc.Server: Ignoring socket shutdown exceptionwith no further details. This message isn't useful - it either n...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-8609
Author: Todd Lipcon,
2012-07-21, 14:03
|
|
|
Re: [DISCUSS] Merge *-user@hadoop lists? - Hadoop - [mail # general]
|
|
...Sure, +1. I already subscribe to all and filter into the same mailbox anyway :) -Todd On Fri, Jul 20, 2012 at 11:34 AM, Mahadev Konar wrote: Todd Lipcon Softwa...
|
|
|
Author: Todd Lipcon,
2012-07-20, 19:05
|
|
|
[HADOOP-8397] NPE thrown when IPC layer gets an EOF reading a response - Hadoop - [issue]
|
|
...When making a call on an IPC connection where the other end has shut down, I see the following exception:Caused by: java.lang.NullPointerException at org.apac...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-8397
Author: Todd Lipcon,
2012-07-20, 18:32
|
|
|
[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,
2012-07-20, 06:09
|
|
|
[HADOOP-7446] Implement CRC32C native code using SSE4.2 instructions - Hadoop - [issue]
|
|
...Once HADOOP-7445 is implemented, we can get further performance improvements by implementing CRC32C using the hardware support available in SSE4.2. This support should be dynamically enabled...
|
|
|
http://issues.apache.org/jira/browse/HADOOP-7446
Author: Todd Lipcon,
2012-07-19, 17:42
|
|
|
|
