I setup cassandra with default configuration in clean AWS instance, and
I insert 10000 columns into a row, each column has a 1MB data. I use
this ruby(version 1.9.3) script:
10000.times do
key = rand(36**8).to_s(36)
value = rand(36**1024).to_s(36) * 1024
Cas_client.insert(TestColumnFamily,TestRow,{key=>value})
end
every time I run this script, it will crash:
/usr/local/lib/ruby/gems/1.9.1/gems/thrift-0.8.0/lib/thrift/transport/socket.rb:109:in
`read': CassandraThrift::Cassandra::Client::TransportException
from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift-0.8.0/lib/thrift/transport/base_transport.rb:87:in
`read_all'
from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift-0.8.0/lib/thrift/transport/framed_transport.rb:104:in
`read_frame'
from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift-0.8.0/lib/thrift/transport/framed_transport.rb:69:in
`read_into_buffer'
from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift-0.8.0/lib/thrift/client.rb:45:in
`read_message_begin'
from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift-0.8.0/lib/thrift/client.rb:45:in
`receive_message'
from
/usr/local/lib/ruby/gems/1.9.1/gems/cassandra-0.15.0/vendor/0.8/gen-rb/cassandra.rb:251:in
`recv_batch_mutate'
from
/usr/local/lib/ruby/gems/1.9.1/gems/cassandra-0.15.0/vendor/0.8/gen-rb/cassandra.rb:243:in
`batch_mutate'
from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift_client-0.8.1/lib/thrift_client/abstract_thrift_client.rb:150:in
`handled_proxy' from
/usr/local/lib/ruby/gems/1.9.1/gems/thrift_client-0.8.1/lib/thrift_client/abstract_thrift_client.rb:60:in
`batch_mutate'
from
/usr/local/lib/ruby/gems/1.9.1/gems/cassandra-0.15.0/lib/cassandra/protocol.rb:7:in
`_mutate'
from
/usr/local/lib/ruby/gems/1.9.1/gems/cassandra-0.15.0/lib/cassandra/cassandra.rb:463:in
`insert'
from a.rb:6:in `block in <main>'
from a.rb:3:in `times'
from a.rb:3:in `<main>'
yet cassandra performs normally, then I run another ruby script to get
how many columns I have inserted:
p cas_client.count_columns(TestColumnFamily,TestRow)
this script crashed again, same error message. And cassandra process
remain in 100% cpu usage.
AWS m1.xlarge type instance (15GB mem,800GB harddisk, 4cores cpu)
cassandra-1.1.2
ruby-1.9.3-p194
jdk-7u6-linux-x64
ruby-gems:
cassandra (0.15.0)
thrift (0.8.0)
thrift_client (0.8.1)
What is the problem?
