PX signal server
Short Description
This event occurs only in Exclusive mode. The query coordinator is signalling the Query Slaves that an error has occurred.
Disclaimer​
The terms master and slave have historically been used by vendors in database wait events. DBmarlin does not support or condone the use of these terms. As vendors remove these terms from their software, occurrences will reduce.
Detailed Description​
This event occurs only in Exclusive mode. The query coordinator is signalling the Query Workers that an error has occurred.
How to reduce this wait​
Refer to My Oracle Support for the "Master Note for Parallel Execution Wait Events".
Additional Links​
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