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From Ryan Rawson <ryano...@gmail.com>
Subject Re: namenode doesn't start after reboot
Date Thu, 23 Dec 2010 22:46:32 GMT
I think the bug might be related to this:

https://issues.apache.org/jira/browse/HDFS-686

and

https://issues.apache.org/jira/browse/HDFS-1002



On Thu, Dec 23, 2010 at 12:47 PM, Jakob Homan <jghoman@gmail.com> wrote:
> Please move discussions of CDH issues to Cloudera's lists.  Thanks.
>
> On Thu, Dec 23, 2010 at 12:02 PM, Todd Lipcon <todd@cloudera.com> wrote:
>> On Thu, Dec 23, 2010 at 2:50 AM, Bjoern Schiessle <bjoern@schiessle.org>wrote:
>>
>>>
>>> 1. I have set up a second dfs.name.dir which is stored at another
>>> computer (mounted by sshfs)
>>>
>>
>> I would strongly discourage the use of sshfs for the name dir. For one, it's
>> slow, and for two, I've sen it have some really weird semantics where it's
>> doing write-back caching.
>>
>> Just take a look at its manpage and you should get scared about using it for
>> a critical mount point like this.
>>
>> A soft interruptable NFS mount is a much safer bet.
>>
>> -Todd
>> --
>> Todd Lipcon
>> Software Engineer, Cloudera
>>
>

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