mc ping command performs a liveness check on a specified target.
The following sends a response request to the target(s) and outputs the minimum, maximum, average, and roundtrip times of the response, as well as the number of errors encountered when processing the request.
mc ping play --count 5
The command pings the deployment at the
play for five cycles.
The output resembles the following:
1: https://play.min.io min=213.00ms max=213.00ms average=213.00ms errors=0 roundtrip=213.00ms 2: https://play.min.io min=67.15ms max=213.00ms average=140.07ms errors=0 roundtrip=67.15ms 3: https://play.min.io min=67.15ms max=213.00ms average=115.85ms errors=0 roundtrip=67.41ms 4: https://play.min.io min=61.26ms max=213.00ms average=102.20ms errors=0 roundtrip=61.26ms 5: https://play.min.io min=61.26ms max=213.00ms average=95.03ms errors=0 roundtrip=66.36ms
The command has the following syntax:
mc [GLOBALFLAGS] ping \ TARGET \ [--count, -c value] \ [--error-count, -e value] \ [--interval, -i value] \ [--distributed, -a value]
indicate optional parameters.
Parameters sharing a line are mutually dependent.
Parameters separated using the pipe
|operator are mutually exclusive.
Copy the example to a text editor and modify as-needed before running the command in the terminal/shell.
The full path to the alias or prefix where the command should run.
Specify the number of times to perform the check.
If not specified, the liveness check performs continuously until stopped.
Specify a number of errors to receive before exiting.
For example, to stop the ping process after receiving five errors, use
mc ping TARGET -e 5
The length of time in seconds to wait between requests.
By default, the command waits 1 second between requests.
This command supports any of the global flags.
The following command sends a liveness check for a deployment with the alias
myminio five times, outputs the result of each check, then ends.
mc ping myminio --count 5
The following command sends continuous liveness check requests with an interval of 5 minutes (300 seconds) between each request.
mc ping myminio --interval 300
The following command sends continuous liveness checks until 20 errors have been encountered:
mc ping myminio --error-count 20