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Cassandra Database(8)Upgrade to 2.1.2 and OpsCenter

 
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Cassandra Database(8)Upgrade to 2.1.2 and OpsCenter
 
Our project is using version 1.2.13. The latest version is 2.1.2 now.
Some example about the 2.0.4 version, using java driver and cqlsh http://sillycat.iteye.com/admin/blogs/2011991.
 
Configure the cluster without other tool, http://sillycat.iteye.com/blog/2166583.
 
Backup and restore data
 
1. Useful command
List all the key spaces we have.
> describe keyspaces;
 
Show the structure of the one key space and its tables.
> describe keyspace device_lookup;
CREATE KEYSPACE device_lookup WITH replication = {
  'class': 'SimpleStrategy',
  'replication_factor': '2'
};

USE device_lookup;

CREATE TABLE profile_devices (
  brandcode ascii,
  profileid bigint,
  deviceid ascii,
  PRIMARY KEY ((brandcode, profileid), deviceid)
) WITH COMPACT STORAGE AND
  bloom_filter_fp_chance=0.100000 AND
  caching='KEYS_ONLY' AND
  comment='' AND
  dclocal_read_repair_chance=0.000000 AND
  gc_grace_seconds=864000 AND
  read_repair_chance=0.100000 AND
  replicate_on_write='true' AND
  populate_io_cache_on_flush='false' AND
  compaction={'sstable_size_in_mb': '5', 'class': 'LeveledCompactionStrategy'} AND
  compression={'sstable_compression': 'SnappyCompressor'};
 
Opscenter
 
2. Try Install the Latest Version
 
Set it up as normal. Edit the cassandra.yaml
listen_address: ubuntu-dev1
seed_provider:
   
# Addresses of hosts that are deemed contact points.
   
# Cassandra nodes use this list of hosts to find each other and learn
   
# the topology of the ring.  You must change this if you are running
   
# multiple nodes!
   
- class_name: org.apache.cassandra.locator.SimpleSeedProvider
     
parameters:
         
# seeds is actually a comma-delimited list of addresses.
         
# Ex: "<ip1>,<ip2>,<ip3>"
          - seeds:"ubuntu-dev1,ubuntu-dev2"
rpc_address: 0.0.0.0
broadcast_rpc_address: ubuntu-dev1
 
When start the cassandra server 
> nohup cassandra -f conf/cassandra.yaml &
 
I get error message as follow:
Cassandra 2.0 and later require Java 7u25 or later.
 
Try to upgrade the JDK
>sudo add-apt-repository ppa:webupd8team/java
>sudo apt-get update
> sudo apt-get install oracle-java7-installer
 
>sudo update-alternatives --config java
>sudo update-alternatives --config javac
 
After the cassandra running, we can use cqlsh to connect to that.
9160 is used for thrift clients, 9042 is for native protocol clients.
 
Check the cluster
> nodetool -h ubuntu-dev1 status
 
3. Try to install OpsCenter 
Find the latest version here.
 
> sudo ln -s /home/carl/tool/opscenter-5.0.2 /opt/opscenter-5.0.2
> sudo ln -s /opt/opscenter-5.0.2 /opt/opscenter
 
Start the opscenter
> bin/opscenter -f
 
Visit the webpage
 
Put ubuntu-dev1 and connect from there.
 
Plan to start cassandra and nodeJS later after gatling.
 
References:
old blog 1 ~ 7 
 
 
official website

 

 

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