Re: can't read all hbase tables after hbase cluster IP netmask change

[Jinsong Hu]

Here is the command line log :

10/03/16 22:19:44 INFO ipc.HbaseRPC: Problem connecting to server: 
/10.110.24.9
:60020
when the problem happens.

--------------------------------------------------
From: "Jinsong Hu" <jinsong...@hotmail.com>
Sent: Tuesday, March 16, 2010 5:31 PM
To: <hbase-user@hadoop.apache.org>
Subject: Re: can't read all hbase tables after hbase cluster IP netmask 
change

Here is the content of the binary  file 
/hbase/-ROOT-/70236052/info/110463219710538426. you can see the IP address
10.110.24.55 inside.

This shows the hbase is saving the IP address of my cluster into the  ROOT 
data file. when I run the scan command
under shell , the log says it was trying to connect to 10.110.24.xx 
machines.

Jimmy



DATABLK*#
? 
.META.,,1inforegioninfo
&?Ph=
.META.,,1.META.
IS_ROOTfalseIS_METAtrueMEMSTORE_FLUSHSIZE16384 
historian BLOOMFILTERfalse 
COMPRESSIONNONEVERSIONS2147483647TTL604800 BLOCKSIZE8192 
IN_MEMORYfalse
BLOCKCACHEfalseinfo BLOOMFILTERfalse COMPRESSIONNONEVERSIONS10TTL
2147483647 BLOCKSIZE8192 IN_MEMORYfalse
BLOCKCACHEfalseI3 
.META.,,1infoserver
'J??10.110.24.88:60020.META.,,1infoserver
'0?}?10.110.24.85:60020 
.META.,,1infoserver
'0?{?10.110.24.56:60020 
.META.,,1infoserver
'&^?10.110.24.54:60020 
.META.,,1infoserver
'#??10.110.24.55:60020 
.META.,,1infoserver
'??10.110.24.54:60020 
.META.,,1infoserver
'B??10.110.24.56:60020 
.META.,,1infoserver
'R?z10.110.24.55:60020 
.META.,,1infoserver
&?NN?10.110.24.54:60020 
.META.,,1infoserver
&?S?410.110.24.55:60020( 
.META.,,1infoserverstartcode
'J??
'J?
( 
.META.,,1infoserverstartcode
'0?}?
'0?V?( 
.META.,,1infoserverstartcode
'0?{?
'&?C( 
.META.,,1infoserverstartcode
'&^?
'&5?( 
.META.,,1infoserverstartcode
'#??
'?( 
.META.,,1infoserverstartcode
'??
'
( 
.META.,,1infoserverstartcode
'B??
'Q??(.META.,,1infoserverstartcode
'R?z
'Q??( 
.META.,,1infoserverstartcode
&?NN?
&?N&G( 
.META.,,1infoserverstartcode
&?S?4
&?R??MAJOR_COMPACTION_KEY

?MAX_SEQ_ID_KEY
N?hfile.AVG_KEY_LEN
#hfile.AVG_VALUE_LEN
!hfile.COMPARATOR
2org.apache.hadoop.hbase.KeyValue$RootKeyComparatorhfile.LASTKEY
( 
.META.,,1infoserverstartcode
&?S?4IDXBLK)+`# 
.META.,,1inforegioninfo
&?Ph=TRABLK"$`D
`





--------------------------------------------------
From: "Stack" <st...@duboce.net>
Sent: Tuesday, March 16, 2010 5:15 PM
To: <hbase-user@hadoop.apache.org>
Subject: Re: can't read all hbase tables after hbase cluster IP netmask 
change

On Tue, Mar 16, 2010 at 5:02 PM, Jinsong Hu <jinsong...@hotmail.com> 
wrote:
yes, the dns name resolution is working file. it is not dns issue. it 
looks
I have to regenerate my hbase data again
from my raw data.


We don't write machine names or ips into the data.  You can take your
data, copy it to another cluster altogether and it'll serve it without
modification.


Another observation I have is that if one region server dies, the region
served by that server won't be accessible any
more because of this binding to IP. the only way to resolve this is to 
build
a new machine that takes over that IP and
add it to cluster.


Your premise is incorrect.  The above does not hold at all.

St.Ack