Home | About | Sematext search-lucene.com search-hadoop.com
clear query|facets|time Search criteria: .   Results from 71 to 80 from 513 (0.088s).
Loading phrases to help you
refine your search...
[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-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
[HADOOP-7307] Remove Dr Who references - Hadoop - [issue]
...I've had feedback from a number of different operators that the "dr who" references that occasionally come out of Hadoop are annoying and confusing. We should replace them with more descript...
http://issues.apache.org/jira/browse/HADOOP-7307    Author: Todd Lipcon, 2012-07-19, 01:12
[HADOOP-7753] Support fadvise and sync_data_range in NativeIO, add ReadaheadPool class - Hadoop - [issue]
...This JIRA adds JNI wrappers for sync_data_range and posix_fadvise. It also implements a ReadaheadPool class for future use from HDFS and MapReduce....
http://issues.apache.org/jira/browse/HADOOP-7753    Author: Todd Lipcon, 2012-07-17, 21:32
[HADOOP-8362] Improve exception message when Configuration.set() is called with a null key or value - Hadoop - [issue]
...Currently, calling Configuration.set(...) with a null value results in a NullPointerException within Properties.setProperty. We should check for null key/value and throw a better exception....
http://issues.apache.org/jira/browse/HADOOP-8362    Author: Todd Lipcon, 2012-07-16, 13:21
Hadoop (508)
HBase (483)
HDFS (416)
MapReduce (265)
Hive (16)
Avro (12)
Accumulo (10)
Zookeeper (9)
YARN (6)
Impala (2)
Cassandra (1)
Drill (1)
Sqoop (1)
mail # user (261)
issue (118)
mail # general (79)
mail # dev (55)
last 7 days (1)
last 30 days (2)
last 90 days (11)
last 6 months (14)
last 9 months (513)
Harsh J (558)
Owen O'Malley (394)
Steve Loughran (385)
Todd Lipcon (238)
Eli Collins (182)
Alejandro Abdelnur (171)
Arun C Murthy (163)
Chris Nauroth (145)
Allen Wittenauer (142)
Ted Yu (123)
Tom White (121)
Daryn Sharp (115)
Nigel Daley (115)
Konstantin Shvachko (107)
Doug Cutting (96)
Aaron Kimball (94)
Colin Patrick McCabe (90)
Edward Capriolo (87)
Mark Kerzner (87)
jason hadoop (82)
Hairong Kuang (74)
Konstantin Boudnik (72)
Runping Qi (72)
Benoy Antony (70)
Suresh Srinivas (64)