GCS lock open X
Short Description
The session waits for a resource get in EXCLUSIVE mode on the block identified by file# and block#.
Detailed Description​
GCS (Global Cache Services) waits are seen in RAC systems where Cache Fusion tracks the location and status of database blocks across RAC nodes.
How to reduce this wait​
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Additional Links​
Oracle Docs - Global Cache Services - GCS_SERVER_PROCESSES
Blog post on Object Remastering
Search online​
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