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HDFS >> mail # user >> is time sync required among all nodes?


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Ben Kim 2013-06-05, 03:02
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Re: is time sync required among all nodes?
Yes, NTPD is your best option.

On 6/4/13, Ben Kim <[EMAIL PROTECTED]> wrote:
> Hi,
> This is very basic & fundamental question.
>
> Is time among all nodes needs to be synced?
>
> I've never even thought of timing in hadoop cluster but recently
> experienced my servers going out of sync with time. I know hbase requires
> time to by synced due to its timestamp action. But I wonder any of hadoop
> functionality requires time sync. Perhaps checkpoint, namenode HA, or
> datanode report, etc... hmm
>
>
> --
>
> *Benjamin Kim*
> *benkimkimben at gmail*
>
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