hadoop-hdfs-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Ted Yu <yuzhih...@gmail.com>
Subject Re: HA Hadoop journal nodes configuration
Date Thu, 08 Jan 2015 05:05:05 GMT
Please see
http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.1-latest/bk_system-admin-guide/content/ch_hadoop-ha-3-2.html
Look for 'Standby NameNode'

Cheers

On Wed, Jan 7, 2015 at 8:57 PM, Shashidhar Rao <raoshashidhar123@gmail.com>
wrote:

> Hi,
> Thanks it helped me a lot. But I am not seeing any secondary namenode so
> my question is is Secondary Namenode required in HA Hadoop cluster
>
> Thanks
> Sd
>
> On Thu, Jan 8, 2015 at 9:38 AM, Ted Yu <yuzhihong@gmail.com> wrote:
>
>> Please take a look at
>> http://docs.hortonworks.com/HDPDocuments/HDP2/HDP-2.1-latest/bk_system-admin-guide/content/ch_hadoop-ha-3-1.html
>>
>> Cheers
>>
>> On Wed, Jan 7, 2015 at 8:00 PM, Shashidhar Rao <
>> raoshashidhar123@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I want to setup Hadoop HA with 2 NameNodes and journal nodes. But I am
>>> not sure what should be the configuration of journal nodes
>>>
>>> 1. How many journal nodes I need
>>> 2. What should be the machine configuration like RAM, disk size etc
>>>
>>> This is for a fairly small cluster dealing with 20 Terabytes of data.
>>>
>>> Thanks
>>> Sd
>>>
>>
>>
>

Mime
View raw message