Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

HBase - Get region start from one shell command

Solved Go to solution

HBase - Get region start from one shell command

Champion Alumni

Hello,

 

I want to do a script that decides where to move each region. For that I want to use the command:

 

 move

ERROR: wrong number of arguments (0 for 1)

Here is some help for this command:
Move a region.  Optionally specify target regionserver else we choose one
at random.  NOTE: You pass the encoded region name, not the region name so
this command is a little different to the others.  The encoded region name
is the hash suffix on region names: e.g. if the region name were
TestTable,0094429456,1289497600452.527db22f95c8a9e0116f0cc13c680396. then
the encoded region name portion is 527db22f95c8a9e0116f0cc13c680396
A server name is its host, port plus startcode. For example:
host187.example.com,60020,1289493121758
Examples:

  hbase> move 'ENCODED_REGIONNAME'
  hbase> move 'ENCODED_REGIONNAME', 'SERVER_NAME'

 

 

For that I started to use the

 

hdfs dfs -du "/hbase/data/default_table_name/"

in order to find the region names. 

 

 

However, I do not know, if there si a shell command to find out the startcode for each region (?).

 

Thank you!

 

GHERMAN Alina
1 ACCEPTED SOLUTION

Accepted Solutions
Highlighted

Re: HBase - Get region start from one shell command

Master Guru
You can get your live RegionServer IDs with startcodes included via the HBase Shell command: status 'simple'

An output line from this, such as the below:

host.cloudera.com:60020 1455726247381

Can then be converted into the right format:

host.cloudera.com,22101,1455726247381
1 REPLY 1
Highlighted

Re: HBase - Get region start from one shell command

Master Guru
You can get your live RegionServer IDs with startcodes included via the HBase Shell command: status 'simple'

An output line from this, such as the below:

host.cloudera.com:60020 1455726247381

Can then be converted into the right format:

host.cloudera.com,22101,1455726247381