Tuesday, October 25, 2016

gc [current/cr] [2/3]-way Wait Event

A current or cr block was requested and received after 2 or 3 network hops. 
The request was processed immediately.

 If these events consume lot of time then check..

 - Network bandwidth saturation
 - Private Interconnect configuration
 - Socket send and receive buffer
 - Run queue length and system CPU usage

 Tuning
- System and load tuning to reduce latencies
- SQL and schema tuning to minimize IO and remote cache references 

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