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From Marcus Olsson <marcus.ols...@ericsson.com>
Subject Repair documentation
Date Fri, 04 Sep 2015 12:50:39 GMT
Hi,

While checking the repair documentation at 
http://docs.datastax.com/en/cassandra/2.1/cassandra/tools/toolsRepair.html 
I noticed the line***Use the **-hosts**option to list the good nodes to 
use for repairing the bad nodes. Use **-h**to name the bad nodes.* and 
below there was an example:

*/nodetool repair -pr -hosts 
/**/10.2/**/./**/2.20/**//**/10.2/**/./**/2.21/* which should do */A 
partitioner range repair of the bad partition on current node using the 
good partitions on 10.2.2.20 or 10.2.2.21/* according to the documentation.

Is this correctly documented because I don't seem to be getting the 
right results when trying.

I started up a C* 2.1.9 CCM cluster and when running
/
repair -h 127.0.0.1 -p 7100 repair -pr 127.0.0.2 127.0.0.3/

I get the error:

*nodetool: Keyspace [127.0.0.3] does not exist.*

---------------

When I run it as
/
nodetool -h 127.0.0.1 -p 7100 repair -pr -hosts 127.0.0.2/

instead it gives me the error:
*java.lang.RuntimeException: Primary range repair should be performed on 
all nodes in the cluster.**
**    at 
org.apache.cassandra.tools.NodeTool$Repair.execute(NodeTool.java:1873)**
**    at 
org.apache.cassandra.tools.NodeTool$NodeToolCmd.run(NodeTool.java:288)**
**    at org.apache.cassandra.tools.NodeTool.main(NodeTool.java:202)*

---------------

I even tried running it as
/
repair -h 127.0.0.1 -p 7100 repair -hosts 127.0.0.2
/
and then I get*
**The current host must be part of the repair*

---------------

This seems like either bug(s) or a documentation mistake?

There is also a line in 
http://docs.datastax.com/en/cassandra/2.1/cassandra/operations/ops_repair_nodes_c.html 
which says that *You can specify which nodes have the good data for 
replacing the outdated data.* which seems to be related(and also the 
reason I tried it out)?

BR
Marcus Olsson

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