Lock shard session heartbeat #6683
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systay
approved these changes
Sep 14, 2020
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
…n held and trigger time returns true Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
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sougou
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Sep 15, 2020
Signed-off-by: Harshit Gangal <harshit@planetscale.com>
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This is to keep the connection alive on tablet to keep holding the lock that the current session hold.
Heartbeat will get triggered only if the session is active i.e. it receives a query for execution and also based on when the last time heartbeat was sent to tablet (currently it is 5 sec).
This is put under a flag
lock_heartbeat_time