2.93 DUMP 2610

Code

2610

Symbol

CmvmiSetKillerWatchdog

Kernel Block

CMVMI

Description.  Activate or deactivate the killer watchdog, which, on the next watchdog warning following activation, shuts down the data node where it occurred. This provides a trace log which includes a signal trace; if the node process was started with the --core-file option, core files are also generated when this occurs.

Syntax: DUMP 2610 [value]. Use 1 for the value or omit value altogether to activate; use 0 to deactivate.

Sample Output.  Client:

ndb_mgm> ALL DUMP 2610 1
Sending dump signal with data:
0x00000a32 0x00000001
Sending dump signal with data:
0x00000a32 0x00000001
Sending dump signal with data:
0x00000a32 0x00000001
Sending dump signal with data:
0x00000a32 0x00000001

ndb_mgm> ALL DUMP 2610 0
Sending dump signal with data:
0x00000a32 0x00000000
Sending dump signal with data:
0x00000a32 0x00000000
Sending dump signal with data:
0x00000a32 0x00000000
Sending dump signal with data:
0x00000a32 0x00000000

Node log:

2017-08-29 13:49:02 [ndbd] INFO     -- Watchdog KillSwitch on.
2017-08-29 13:49:15 [ndbd] INFO     -- Watchdog KillSwitch off.

Additional Information.  Added in NDB 7.3.7 (Bug #18703922).