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From Siddharth Karandikar <siddharth.karandi...@gmail.com>
Subject Re: export snapshot of cloned table fails
Date Tue, 01 Oct 2013 05:42:41 GMT
Hi,

Here is the output of SnapshotInfo

hbase2-bigdata:~/siddharth/tools/hbase-0.94.10 # ./bin/hbase
org.apache.hadoop.hbase.snapshot.SnapshotInfo
-Dfs.default.name=hdfs://hbase2-bigdata.vxindia.veritas.com:9000/
-snapshot CMT2SS1 -files
Snapshot Info
----------------------------------------
   Name: CMT2SS1
   Type: FLUSH
  Table: CMT2
 Format: 0
Created: 2013-09-30T07:02:43

Snapshot Files
----------------------------------------
     0.0 CMT2/95d51af133141274fe2f0a9da79247cb/f1/MT2=d1bcc79d7e81c481c287cb1b7f6d78e2-9b57efdf5219495ebd15d0e0b227007c
13/09/30 23:41:43 INFO util.FSVisitor: No logs under
directory:hdfs://hbase2-bigdata.vxindia.veritas.com:9000/hbase/.hbase-snapshot/CMT2SS1/.logs

1 HFiles (0 in archive), total size 0.0 (NaN% 0.0 shared with the source table)
0 Logs, total size 0.0



Thanks,
Siddharth

On Mon, Sep 30, 2013 at 7:25 PM, Matteo Bertozzi
<theo.bertozzi@gmail.com> wrote:
> The input name looks wrong, not an hfileLink.
> How that was created?
> could you dump the snapshots files with hbase
> org.apache.hadoop.hbase.SnapshotInfo -snapshot NAME -files
>
> Matteo
>
>
>
> On Mon, Sep 30, 2013 at 2:36 PM, Siddharth Karandikar <
> siddharth.karandikar@gmail.com> wrote:
>
>> Hi,
>>
>> I have reached a situation where good old ExportSnapshot fails
>>
>> Here is what I am doing
>>
>> 1) Create table MT2
>> 2) Take a snapshot of MT2 -> MT2SS1
>> 3) Export MT2SS1 - works
>>
>> 4) Drop MT2, delete MT2SS1 from source system
>> 5) Export back (import) MT2SS1 - works
>>
>> 6) Clone a table using MT2SS1 -> CMT2
>> 7) Take a snapshot of CMT2 -> CMT2SS1
>> 8) Export CMT2SS1 - FAILS
>>
>> Though the steps look complex, I feel, it is going to be very common
>> to take snapshot of cloned (restored?) table and export that snapshot.
>>
>> Here is the whole output of ExportSnapshot - http://pastebin.com/N1f0Kg1a
>>
>>
>> I think  storeFile (..) in SnapshotReferenceUtil.visitReferencedFiles
>> is creating a path like
>>
>> "f1/CMT2=95d51af133141274fe2f0a9da79247cb-MT2=d1bcc79d7e81c481c287cb1b7f6d78e2-9b57efdf5219495ebd15d0e0b227007c"
>> which is making it fail later.
>>
>>
>> Thanks,
>> Siddharth
>>

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