Re: namenode crash - recovery model?

2010-09-28 Thread Jeff Hammerbacher
Hey John, See https://issues.apache.org/jira/browse/HDFS-1064 for the JIRA where high availability strategies for the NameNode are discussed. Thanks, Jeff On Mon, Sep 13, 2010 at 2:33 PM, John Hui wrote: > Hi All, > > I am new to Hadoop. I have been reading and playing around with Hadoop, it

Re: what kind of improvement for HDFS could possibly be done within 3 months

2010-09-28 Thread Thomas Koch
xiaofei du: > Hi All, > > I am a graduate student, I am preparing for my diploma project. I have > about 3 months to finish the project. I want to do some work on HDFS. > However, I have no concept what I could do for improving HDFS. So could you > guys please give me some suggestions? > > I hope

Re: what kind of improvement for HDFS could possibly be done within 3 months

2010-09-28 Thread xiaofei du
Hi Thomas, Thanks for your suggestions, I would take well consideration of them. However, I need coding work for finishing my diploma project. Thus, writing documentation may not be the good choice for me. And my work needs to be related to HDFS. For example, I know random modification of file is

[jira] Resolved: (HDFS-1364) HFTP client should support relogin from keytab

2010-09-28 Thread Devaraj Das (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-1364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Devaraj Das resolved HDFS-1364. --- Fix Version/s: 0.22.0 Resolution: Fixed I just committed this. Thanks, Jitendra! > HFTP client

[jira] Created: (HDFS-1425) Improve NameNode responsiveness by speeding up serving refreshNodes RPC

2010-09-28 Thread Hairong Kuang (JIRA)
Improve NameNode responsiveness by speeding up serving refreshNodes RPC --- Key: HDFS-1425 URL: https://issues.apache.org/jira/browse/HDFS-1425 Project: Hadoop HDFS Issue Ty

[jira] Created: (HDFS-1426) Remove unused method BlockInfo#listCount

2010-09-28 Thread Hairong Kuang (JIRA)
Remove unused method BlockInfo#listCount Key: HDFS-1426 URL: https://issues.apache.org/jira/browse/HDFS-1426 Project: Hadoop HDFS Issue Type: Improvement Components: name-node Affects Ve

[jira] Resolved: (HDFS-1426) Remove unused method BlockInfo#listCount

2010-09-28 Thread Hairong Kuang (JIRA)
[ https://issues.apache.org/jira/browse/HDFS-1426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Hairong Kuang resolved HDFS-1426. - Hadoop Flags: [Reviewed] Resolution: Fixed I've committed this! > Remove unused method Bloc