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From "Erick Ramirez (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-9652) Nodetool cleanup does not work for nodes taken out of replication
Date Thu, 25 Jun 2015 13:45:04 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-9652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erick Ramirez updated CASSANDRA-9652:
-------------------------------------
    Description: 
After taking a node (DC) out of replication, running a cleanup does not get rid of the data
on the node. The SSTables remain on disk and no data is cleared out.

The following entry is recorded in {{system.log}}:

{noformat}
 INFO [CompactionExecutor:8] 2015-06-25 12:33:01,417 CompactionManager.java (line 527) Cleanup
cannot run before a node has joined the ring
{noformat}

*STEPS TO REPRODUCE*

# Build a (C* 2.0.10) cluster with multiple DCs.
# Run {{cassandra-stress -n1}}  to create schema.
# Alter schema to replicate to all DCs.
{noformat}
cqlsh> ALTER KEYSPACE "Keyspace1" WITH replication = { 'class' : 'NetworkTopologyStrategy',
'DC1' : 2, 'DC2' : 2, 'DC3' : 1 } ;
{noformat}
# Run {{cassandra-stress -n100000}} to generate data.
# Alter schema to stop replication to {{DC3}}.
# On node in {{DC3}}, run {{nodetool cleanup}}.

*WORKAROUND*

# Stop Cassandra.
# Manually delete the SSTables on disk.
# Start Cassandra.

  was:
After taking a node (DC) out of replication, running a cleanup does not get rid of the data
on the node. The SSTables remain on disk and no data is cleared out.

The following entry is recorded in {{system.log}}:

{noformat}
 INFO [CompactionExecutor:8] 2015-06-25 12:33:01,417 CompactionManager.java (line 527) Cleanup
cannot run before a node has joined the ring
{noformat}

*STEPS TO REPRODUCE*

# Build a (C* 2.0.10) cluster with multiple DCs.
# Run {{cassandra-stress -n1}}  to create schema.
# Alter schema to replicate to all DCs.
{noformat}
cqlsh> ALTER KEYSPACE "Keyspace1" WITH replication = { 'class' : 'NetworkTopologyStrategy',
'DC1' : 2, 'DC2' : 2, 'DC3' : 1 } ;
{noformat}
# Run {{cassandra-stress -n100000}} to generate data.
# Alter schema to stop replication to {{DC3}}.
# On node in {{DC3}}, run {{nodetool cleanup}}.


> Nodetool cleanup does not work for nodes taken out of replication
> -----------------------------------------------------------------
>
>                 Key: CASSANDRA-9652
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9652
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Erick Ramirez
>
> After taking a node (DC) out of replication, running a cleanup does not get rid of the
data on the node. The SSTables remain on disk and no data is cleared out.
> The following entry is recorded in {{system.log}}:
> {noformat}
>  INFO [CompactionExecutor:8] 2015-06-25 12:33:01,417 CompactionManager.java (line 527)
Cleanup cannot run before a node has joined the ring
> {noformat}
> *STEPS TO REPRODUCE*
> # Build a (C* 2.0.10) cluster with multiple DCs.
> # Run {{cassandra-stress -n1}}  to create schema.
> # Alter schema to replicate to all DCs.
> {noformat}
> cqlsh> ALTER KEYSPACE "Keyspace1" WITH replication = { 'class' : 'NetworkTopologyStrategy',
'DC1' : 2, 'DC2' : 2, 'DC3' : 1 } ;
> {noformat}
> # Run {{cassandra-stress -n100000}} to generate data.
> # Alter schema to stop replication to {{DC3}}.
> # On node in {{DC3}}, run {{nodetool cleanup}}.
> *WORKAROUND*
> # Stop Cassandra.
> # Manually delete the SSTables on disk.
> # Start Cassandra.



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