Actually uses efficient cross DC writes
---------------------------------------
Key: CASSANDRA-3472
URL: https://issues.apache.org/jira/browse/CASSANDRA-3472
Project: Cassandra
Issue Type: Bug
Components: Core
Affects Versions: 0.7.1
Reporter: Sylvain Lebresne
Assignee: Sylvain Lebresne
Priority: Minor
Fix For: 0.8.8, 1.0.3
CASSANDRA-2138 introduced the following code:
{noformat}
if (dataCenter.equals(localDataCenter) ||
StorageService.instance.useEfficientCrossDCWrites())
{
// direct writes to local DC or old Cassadra versions
for (InetAddress destination : messages.getValue())
MessagingService.instance().sendRR(message, destination, handler);
}
else
{
// Non-local DC. First endpoint in list is the destination for this group
{noformat}
A 'not' is missing on that useEfficientCrossDCWrites call (which does return
true for any version >= 0.7.1).
A simple fix would be to add the missing !, but as said a comment, all this
code should have been removed in 0.8 since it was detecting nodes before 0.7.1,
but direct upgrade from pre-0.7.1 to 0.8+ is not supported. So let's just
completely remove that code now.
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