On 9/21/08 2:51 PM, "Dmitry Pushkarev" <[EMAIL PROTECTED]> wrote:
> Speaking about NFS-backup idea:
> If I have secure nfs storage which is much slower than network (3MB/d vs
> 100MB/s network we use between nodes) will it adversely affect performance,
> or I can rely on NFS caching to do the job?
I think Konstantin has some benchmarks in a JIRA somewhere that shows
that the current bottleneck isn't the fsimage/edits writes.
> And if nfs share dies, will it shutdown the namenode as well?
In our experiences, the name node continues. But be warned that it will
only put a message in the name node log that the NFS mount became
unwritable. There is a JIRA open to fix this though.
