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bytes in Recv-Q not processed by mysql

Hi All

In my application while writing to DB , i could see the following output from netstat for a single connection to the mysqld DB.

tcp 18 0 ::ffff: ::ffff: ESTABLISHED 30850/mysqld keepalive (3517.74/0/0)


I could see that there are 18 outstanding bytes that are not read by mysql in this connection. This stays on indefinitely in my system and is cleared only until i restart my application. I could see some functional issues as well in my application and when i hit the functional issue i can see the above observation from the netstat -tonp command.

Basically certain threads get into BLOCKED state unable to write to DB. Any help / pointers would be really appreciated.