Sets the percentage threshold of off-heap memory usage that triggers
LowMemoryExceptions on a GemFire XD data store. This procedure executes
only on the local GemFire XD data store member.
This procedure sets the percentage
threshold of critical off-heap memory usage on the local GemFire XD data store. If the
amount of off-heap memory being used exceeds the percentage, the member will report
LowMemoryExceptions during local or client put operations into
off-heap tables. The member will also inform other members in the distributed system
that it has reached the critical threshold. When a data store is started with the
-off-heap-size option, the default critical threshold is 90%.
IN PERCENTAGE REAL NOT NULL
- The percentage of used off-heap space that triggers
LowMemoryExceptions on the local GemFire XD data store.
This command sets the critical threshold for off-heap memory usage on the local
GemFire XD member to 99.9%:
call sys.set_critical_offheap_percentage (99.9);