Hey, I am interested in building a gem to support latest version of Hbase. What are your plans ?
@greglu @kaichen @celeduc

Trying to gem build the 1.6.0 branch and I get this:

] gem build hbase-stargate.gemspec
ERROR: While executing gem ... (Gem::InvalidSpecificationException)
["lib/stargate/model/region_descriptor.rb", "spec/hbase-stargate/model/region_descriptor_spec.rb"] are not files

Using Master branch, I'm trying to create a table, and I get:

irb(main):008:0> table = client.create_table("table2", 'data')
Stargate::TableFailCreateError: 503 "Service Unavailable"
from /usr/local/lib/ruby/gems/1.8/gems/hbase-stargate-1.5.1/lib/stargate/operation/table_operation.rb:43:in `create_table'
from (irb):8
irb(main):009:0> exit

confirmed that tables can be created in the console.

It would be great if the ruby gem could support multiple row requests at once. http://wiki.apache.org/hadoop/Hbase/Stargate#A3

/home/krina/.rvm/gems/ruby-2.3.0/gems/bundler-1.13.1/lib/bundler/vendor/postit/lib/postit/environment.rb
/home/krina/.rvm/rubies/ruby-2.3.0/lib/ruby/gems/2.3.0/gems/gem-wrappers-1.2.7/lib/gem-wrappers/environment.rb
/home/krina/.rvm/rubies/ruby-2.3.0/lib/ruby/gems/2.3.0/gems/rvm-1.11.3.9/lib/rvm/environment.rb

Hi I have problems with Stargate, it always returning XML responses, no matter what you specified in the 'Accept' property of header?

Tried HBase 0.20.4, 0.20.6, 0.89.20100726 - all of them are returning XML and consequently hbase-stargate doesn't work (because it expect json).

Do you have such problems?

The gem defines an alter_table operation, but it appears to be unfinished. It calls an undefined method 'construct_xml_stream'.

i have code similiar to the following:

scanner = client.open_scanner("table", {:columns => "a", :batch => 10, :limit => 4}) 
rows = client.get_rows(scanner, 10)
rows.each do |row|
   puts row.name + " " + row.columns.to_s
end

when column-family 'a' has 4 columns this should return results like:

row1 col a:1 col a:2 col a:3 col a:4
row2 col a:1 col a:2 col a:3 col a:4
row3 col a:1 col a:2 col a:3 col a:4
row4 col a:1 col a:2 col a:3 col a:4

but what i get is :

row1 col a:1 col a:2 col a:3 col a:4
row2 col a:1 col a:2 col a:3 col a:4
row3 col a:1 col a:2
row3 col a:3 col a:4
row4 col a:1 col a:2 col a:3 col a:4

however, when I change :batch from 10 to 100 it works.
It seams that rows are not correctly assembled when they are split because of the batch-size

Trying to 'gem install hbase-stargate'
Ruby -v = 1.9.2

I get the following:

[root@vm-swtg-um-002 ~]# gem install hbase-stargate
Building native extensions. This could take a while...
ERROR: Error installing hbase-stargate:
ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb
checking for curl-config... yes
checking for rb_thread_blocking_region()... yes
creating Makefile

make
gcc -I. -I/usr/local/include/ruby-1.9.1/x86_64-linux -I/usr/local/include/ruby-1.9.1/ruby/backward -I/usr/local/include/ruby-1.9.1 -I. -DUSE_TBR -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_TBR -fPIC -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -pedantic -Wall -o membuffer.o -c membuffer.c
gcc -I. -I/usr/local/include/ruby-1.9.1/x86_64-linux -I/usr/local/include/ruby-1.9.1/ruby/backward -I/usr/local/include/ruby-1.9.1 -I. -DUSE_TBR -DHAVE_RB_THREAD_BLOCKING_REGION -DHAVE_TBR -fPIC -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wno-long-long -pedantic -Wall -o session_ext.o -c session_ext.c
session_ext.c: In function ‘Init_session_ext’:
session_ext.c:727: error: ‘CURLPROXY_HTTP_1_0’ undeclared (first use in this function)
session_ext.c:727: error: (Each undeclared identifier is reported only once
session_ext.c:727: error: for each function it appears in.)
session_ext.c:730: error: ‘CURLPROXY_SOCKS4A’ undeclared (first use in this function)
session_ext.c:731: error: ‘CURLPROXY_SOCKS5_HOSTNAME’ undeclared (first use in this function)
make: *** [session_ext.o] Error 1

how to convert fetched data from hbase (in RoR) using Stargate in to xml

ScannerOperation.get_rows loads the entire result into memory. I would like to work with ranges that are larger than memory; I could do this if there were a ScannerOperation.get_each_row method. It should load batches, yielding rows one-by-one to the block.

If you just use the client and let it go out of scope, it can leave many connections open and in a busy site saturate the server with open connections.

It would be good to have a setting that is more aggressive about closing the http connections when they are done.

Here is a simple test code,

require 'rubygems'
require 'stargate'

Direct connection

client = Stargate::Client.new("http://localhost:8080") # this url is the default for stargate.

Table Operation

client.delete_table('users') # delete 'users' table
table = client.create_table('users', 'habbit') # create a table whose column_family is habbit

table = client.show_table('users') # show the meta info of table users

Row Operation

row = client.create_row('users', 'sishen', 2, {:name => 'habbit:football', :value => 'i like football'}) # create the row 'sishen' with the data in the table 'users'
row = client.create_row('users', 'sishen', 1, {:name => 'habbit:football', :value => 'i like basketball'}) # create the row 'sishen' with the data in the table 'users'

there should be two record with the same row key and different timestamp, right? But i only get one,
hbase(main):030:0> scan 'users'
ROW COLUMN+CELL
sishen column=habbit:football, timestamp=2, value=i like football
1 row(s) in 1.0410 seconds

Is it a bug?

In RubyGems the latest version listed is 1.6.1 but I can't find this version in the repository. Where can it be accessed to?