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https://issues.apache.org/jira/browse/THRIFT-2780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14166061#comment-14166061
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Swapnil Bhisey commented on THRIFT-2780:
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2. We have 4 DC's and out of four DC's two DC's has private network configured 
for them.

So from DC1 if I have to access other DC cassandra nodes it will do it via 
external NAT or ip adress forwarding that to other DC. But in that DC 
application connection via internal ip adress.

So DC1 sees other DC as 120.1(DC1) ,121.1(DC2),122.1(DC3),123.1(DC4)  but 
internally to itself it sees as 10.1(DC1)

> Hi , I am new to cassandra ,saw following warnings in cassandra system.log  
> WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) Thrift 
> operation queue is full, discarding thrift ope
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: THRIFT-2780
>                 URL: https://issues.apache.org/jira/browse/THRIFT-2780
>             Project: Thrift
>          Issue Type: Question
>            Reporter: Swapnil Bhisey
>
> Finding following errors in cassandra system.log 
>  WARN [Thread-1] 2014-10-09 15:04:27,851 NO_SOURCE_FILE (line 0) Thrift 
> operation queue is full, discarding thrift operation
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) 919795 
> operations dropped so far.
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) Thrift 
> operation queue is full, discarding thrift operation
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) 919796 
> operations dropped so far.
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) Thrift 
> operation queue is full, discarding thrift operation
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) 919797 
> operations dropped so far.
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) Thrift 
> operation queue is full, discarding thrift operation
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) 919798 
> operations dropped so far.
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) Thrift 
> operation queue is full, discarding thrift operation
>  WARN [Thread-1] 2014-10-09 15:04:27,852 NO_SOURCE_FILE (line 0) 919799 
> operations dropped so far.



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