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
 Search Hadoop and all its subprojects:

Switch to Plain View
MapReduce >> mail # user >> Re: is time sync required among all nodes?


Copy link to this message
-
Re: is time sync required among all nodes?
Skew in time between nodes is highly confusing, even if not a problem
to the runtime. I'd strongly recommend running a time sync service for
operational sanity.

On Wed, Jun 5, 2013 at 8:41 AM, Chris Embree <[EMAIL PROTECTED]> wrote:
> 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*
>>

--
Harsh J
+
Daryn Sharp 2013-06-06, 13:38
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