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[HDFS-2421] Improve the concurrency of  SerialNumberMap in NameNode - HDFS - [issue]
...After enabled permission checking in our HDFS test cluster, our benchmark observed a significant reduced concurrency in NameNode. Investigation showed that most threads were blocked at acqui...
http://issues.apache.org/jira/browse/HDFS-2421    Author: Hairong Kuang, 2012-08-18, 23:40
[expand - 1 more] - Re: HDFS Protocol Documentation - Hadoop - [mail # dev]
...Please see the .proto files:  RPC implementation: ./hadoop-common-project/hadoop-common/src/main/proto/hadoop_rpc.proto  Protocols used in HDFS. See the corresponding java classes ...
   Author: Suresh Srinivas, 2012-08-18, 22:03
[expand - 2 more] - Re: Can I specify the range inside of fuzzy rule in FuzzyRowFilter? - HBase - [mail # user]
...Hi Alex,  Apart from the query which i mentioned in last email. Till now, i have implemented the following queries using filters and coprocessors:  1. Getting all the records for a...
   Author: anil gupta, 2012-08-18, 21:02
[expand - 2 more] - Re: HBase replication - HBase - [mail # user]
...On Sat, Aug 18, 2012 at 12:35 PM, Stack  wrote:  it possible to write to the same table to both HBase instances locally in each DC and still be able to replicate between them? both...
   Author: Mohit Anchlia, 2012-08-18, 20:30
Hbase master startup error: cannot assign requested address - HBase - [mail # user]
...Hi,   Getting port binding issue.   2012-08-18 03:11:43,627 DEBUG org.apache.hadoop.hbase.master.LogCleaner: Add log cleaner in chain: org.apache.hadoop.hbase.master.TimeToLiveLogC...
   Author: Stephen Boesch, 2012-08-18, 20:29
[HBASE-6559] HDFS size does not decrease when deleting a column family - HBase - [issue]
...When deleting a column family of a table and doing major compaction, the disk space occupied by the column family is still the same. A "fs -dus /hbase/<table name>/<region hash>/...
http://issues.apache.org/jira/browse/HBASE-6559    Author: J Mohamed Zahoor, 2012-08-18, 19:47
[HBASE-6560] Deleting column family does not reclaim space in HDFS - HBase - [issue]
...When deleting a column family of a table and doing major compaction, the disk space occupied by the column family is still the same. A "fs -dus /hbase/<table name>/<region hash>/...
http://issues.apache.org/jira/browse/HBASE-6560    Author: J Mohamed Zahoor, 2012-08-18, 19:47
Re: HBase row level cache for random read - HBase - [mail # user]
...On Fri, Aug 17, 2012 at 4:42 PM, Gen Liu  wrote:  Generally its not, not unless you use block encoding.   We don't seem to list this as an option in this section, http://hbase...
   Author: Stack, 2012-08-18, 19:33
1.1.X release - Hadoop - [mail # dev]
...Hi,  Hi, quick question - Is there a way to download  1.1.X - current beta versi on, 1.1 release - none of the mirrors seem to have it. Is building it the only way to get it?  ...
   Author: Slavik Krassovsky, 2012-08-18, 18:13
Re: pig pull request: Fix newline right after quote - Pig - [mail # dev]
...I understand. I did add patch to PIG-2556 at the same time. Patch is generated with git, if it's not OK I can try to redo it. See https://issues.apache.org/jira/secure/attachment/12541355/CS...
   Author: =?KOI8-U?B?96bUwcymyiD0yc..., 2012-08-18, 16:26
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