ruanhui created HBASE-27905:
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Summary: Directly schedule procedures that do not need to acquire
locks
Key: HBASE-27905
URL: https://issues.apache.org/jira/browse/HBASE-27905
Project: HBase
Issue Type: Improvement
Components: proc-v2
Affects Versions: 3.0.0-alpha-3
Reporter: ruanhui
Assignee: ruanhui
Fix For: 3.0.0-alpha-4
Currently, in the procedure scheduler, we will not schedule any other
procedures for a given queue if a procedure has held the exclusive lock, even
if a procedure does not require any locks. For such procedures that do not
require locks, we prefer that they can be executed directly without waiting
until the procedure that held the exclusive lock is executed before starting to
schedule execution. Otherwise, if the procedure holding the exclusive lock is
stuck, the procedure that does not need the lock will also wait forever.
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