Home | About | Sematext search-lucene.com search-hadoop.com
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
clear query|facets|time Search criteria: .   Results from 61 to 70 from 417 (0.072s).
Loading phrases to help you
refine your search...
[HDFS-5058] QJM should validate startLogSegment() more strictly - HDFS - [issue]
...We've seen a small handful of times a case where one of the NNs in an HA cluster ends up with an fsimage checkpoint that falls in the middle of an edit segment. We're not sure yet how this h...
http://issues.apache.org/jira/browse/HDFS-5058    Author: Todd Lipcon, 2013-09-05, 15:45
Re: Long time fail over when using QJM - HDFS - [mail # dev]
...If you're seeing those log messages, the SBN was already active at that time. It only logs that message when successfully writing transactions. So, the failover must have already completed b...
   Author: Todd Lipcon, 2013-08-29, 16:53
[HDFS-4982] JournalNode should relogin from keytab before fetching logs from other JNs - HDFS - [issue]
...We've seen an issue in a secure cluster where, after a failover, the new NN isn't able to properly coordinate QJM recovery. The JNs fail to fetch logs from each other due to apparently not h...
http://issues.apache.org/jira/browse/HDFS-4982    Author: Todd Lipcon, 2013-08-27, 23:08
[HDFS-2627] HA: determine DN's view of which NN is active based on heartbeat responses - HDFS - [issue]
...This is the first part of the design described in this comment in HDFS-1972. When the DNs start, they should not consider either of the NNs in a block pool to be the active one. Rather, the ...
http://issues.apache.org/jira/browse/HDFS-2627    Author: Todd Lipcon, 2013-08-23, 01:28
Re: Secure deletion of blocks - HDFS - [mail # dev]
...Hi Matt,  I'd also recommend implementing this in a somewhat pluggable way -- eg a configuration for a Deleter class. The default Deleter can be the one we use today which just removes ...
   Author: Todd Lipcon, 2013-08-15, 21:17
[HDFS-3656] ZKFC may write a null "breadcrumb" znode - HDFS - [issue]
...A user reported an NPE trying to read the "breadcrumb" znode in the failover controller. This happened repeatedly, implying that an earlier process set the znode to null - probably some race...
http://issues.apache.org/jira/browse/HDFS-3656    Author: Todd Lipcon, 2013-08-14, 22:24
[HDFS-3020] Auto-logSync based on edit log buffer size broken - HDFS - [issue]
...HDFS-1112 added a feature whereby the edit log automatically calls logSync() if the buffered data crosses a threshold. However, the code checks bufReady.size() rather than bufCurrent.size() ...
http://issues.apache.org/jira/browse/HDFS-3020    Author: Todd Lipcon, 2013-08-10, 12:33
Re: Feature request to provide DFSInputStream subclassing mechanism - HDFS - [mail # dev]
...Hi Jeff,  Do you need to subclass or could you simply wrap? Generally composition as opposed to inheritance is a lot safer way of integrating software written by different parties, sinc...
   Author: Todd Lipcon, 2013-08-07, 18:25
[HDFS-3053] Support for true zero-copy (mmap-based) reads - HDFS - [issue]
...Continuing a discussion started in HDFS-2834, it would be slick to provide support for a true zero-copy read API. In this style API, rather than having the user pass buffers to read into, th...
http://issues.apache.org/jira/browse/HDFS-3053    Author: Todd Lipcon, 2013-07-29, 03:03
Re: I'm interested in working with HDFS-4680. Can somebody be a mentor? - HDFS - [mail # dev]
...I'm happy to help with this as well. I actually have a prototype patch that I built during a hackathon a few months ago, and was able to get a full stack trace including Client, NN, and DN. ...
   Author: Todd Lipcon, 2013-07-18, 00:23
Sort:
project
Hadoop (509)
HBase (463)
HDFS (415)
MapReduce (272)
Hive (16)
Avro (12)
Accumulo (10)
Zookeeper (10)
YARN (6)
Impala (3)
Cassandra (1)
Drill (1)
Sqoop (1)
type
issue (266)
mail # dev (85)
mail # user (66)
date
last 7 days (0)
last 30 days (3)
last 90 days (16)
last 6 months (36)
last 9 months (417)
author
Todd Lipcon (325)
Eli Collins (263)
Harsh J (262)
Colin Patrick McCabe (244)
Tsz Wo (201)
Jing Zhao (177)
Chris Nauroth (174)
Arpit Agarwal (153)
Haohui Mai (153)
Andrew Wang (149)
Aaron T. Myers (142)
Brandon Li (139)
Suresh Srinivas (139)
Kihwal Lee (120)
Daryn Sharp (106)
Ted Yu (88)
Uma Maheswara Rao G (86)
Tsz Wo Nicholas Sze (80)
Alejandro Abdelnur (73)
Konstantin Shvachko (68)
Akira AJISAKA (61)
Yongjun Zhang (61)
Stephen Chu (58)
Allen Wittenauer (53)
Steve Loughran (53)
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