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Re: Datanode support different Namespace
Additional,

If these are two new clusters, then on each namenode, using "hdfs namenode
-format -clusterID yourID"

But if you want to upgrade these two clusters from NonHA to HA, then using
"bin/start-dfs.sh -upgrade -clusterID yourID"

On Thu, Jul 4, 2013 at 3:14 PM, Azuryy Yu <[EMAIL PROTECTED]> wrote:

>
> This is because you don't use the same clusterID. all data nodes and
> namenodes should use the same clusterID.
>
>
> On Thu, Jul 4, 2013 at 3:12 PM, Bing Jiang <[EMAIL PROTECTED]>wrote:
>
>> Hi, all
>>
>> We try to use hadoop-2.0.5-alpha, using two namespaces, one is for hbase
>> cluster, and the other one is for common use.At the same time, we use
>> Quorum Journal policy as HA.
>>
>> GS-CIX-SEV0001, GS-CIX-SEV0002,  namenodes in hbasecluster  namespace
>>
>> GS-CIX-SEV0003, GS-CIX-SEV0004, namenodes in commoncluster namespace.
>>
>> GS-CIX-SEV0001~GS-CIX-SEV0008 , 8 machines used as Datanode
>>
>> After launching the hdfs cluster all, there is something which makes me
>> confused, that  each namespace has half of the datanodes.
>>
>> NameNode 'GS-CIX-SEV0004:9100'
>>
>> Started:        Thu Jul 04 10:28:00 CST 2013
>> Version:        2.0.5-alpha, 1488459
>> Compiled:       2013-06-01T04:05Z by jenkins from branch-2.0.5-alpha
>> Cluster ID:     CID-15c48d78-2137-4c6e-aacf-0edbf2bb3db7
>> Block Pool ID:  BP-1792015895-10.100.2.3-1372904504940
>>
>>
>> Browse the filesystem
>> NameNode Logs
>> Go back to DFS home
>>
>> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
>> Live Datanodes : 4
>>
>>
>>                 Last     Admin    Configured  Used Non DFS  Remaining
>> Used      Used      Remaining          Block     Block Pool      Failed
>>      Node      Contact   State     Capacity   (GB)   Used     (GB)
>> (%)       (%)          (%)    Blocks   Pool      Used (%)>      Volumes
>>                                      (GB)
>> (GB)                                                  Used (GB)     Blocks
>> GS-CIX-SEV0001 1       In Service      888.07 0.00   116.04    772.03
>> 0.00 ┌────────────┐     86.93 0           0.00           0.00            0
>>
>> └────────────┘
>> GS-CIX-SEV0002 1       In Service      888.07 0.00   135.50    752.57
>> 0.00 ┌────────────┐     84.74 0           0.00           0.00            0
>>
>> └────────────┘
>> GS-CIX-SEV0005 1       In Service      888.07 0.00    97.61    790.46
>> 0.00 ┌────────────┐     89.01 0           0.00           0.00            0
>>
>> └────────────┘
>> GS-CIX-SEV0006 1       In Service      888.07 0.00   122.30    765.77
>> 0.00 ┌────────────┐     86.23 0           0.00           0.00            0
>>
>> └────────────┘
>>
>>
>> Another Namespace's NameNode:
>>
>> NameNode 'GS-CIX-SEV0001:9100'
>>
>> Started:        Thu Jul 04 10:19:03 CST 2013
>> Version:        2.0.5-alpha, 1488459
>> Compiled:       2013-06-01T04:05Z by jenkins from branch-2.0.5-alpha
>> Cluster ID:     CID-1a53483d-000e-4726-aef1-f500bedb1df6
>> Block Pool ID:  BP-1142418822-10.100.2.1-1372904314309
>>
>>
>> Browse the filesystem
>> NameNode Logs
>> Go back to DFS home
>>
>> ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
>> Live Datanodes : 4
>>
>>
>>                 Last     Admin    Configured  Used Non DFS  Remaining
>> Used      Used      Remaining          Block     Block Pool      Failed
>>      Node      Contact   State     Capacity   (GB)   Used     (GB)
>> (%)       (%)          (%)    Blocks   Pool      Used (%)>      Volumes
>>                                      (GB)
>> (GB)                                                  Used (GB)     Blocks
>> GS-CIX-SEV0003 0       In Service      888.07 0.00   150.54    737.53