remove clustertool
------------------
Key: CASSANDRA-2607
URL: https://issues.apache.org/jira/browse/CASSANDRA-2607
Project: Cassandra
Issue Type: Task
Components: Tools
Reporter: Jonathan Ellis
Priority: Minor
Fix For: 1.0
Clustertool is a "run an operation against the whole cluster" tool, as opposed
to nodetool which is single-node.
Clustertool never achieved feature parity with nodetool and never will for
long, since it has to be manually updated for each operation type.
Since it's trivial to just use standard tools to run nodetool against an entire
cluster, let's drop clustertool in favor of encouraging that.
Some examples. The first two assume a file "clustermembers" with your cluster
host names; dsh will want that in /etc/dsh/groups instead of cwd.
bash:
{noformat}
for host in `cat clustermembers`; do nodetool -h $host command;done
{noformat}
xargs:
{noformat}
# one op at a time
cat clustermembers | xargs -n 1 -I{} nodetool -h {} command
# parallelize
cat clustermembers | xargs -P `wc -l clustermembers` -n 1 -I{} nodetool -h {}
command
{noformat}
dsh:
{noformat}
# one at a time
dsh -g clustermembers -- nodetool -h localhost command
# parallelize
dsh -g -c clustermembers -- nodetool -h localhost command
{noformat}
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