Rebuild a Volume: Meta1
Preparation
First, run gridinit_cmd restart @meta1; this allows you to check that meta services are up.
If scores are low, the rebuilder can take a long time and can fail due to a timeout.
You can check the score by running openio cluster list meta1.
Launch rebuilding
You can launch the rebuild by using the openio-admin meta1 rebuild command:
# openio-admin meta1 rebuild
Options
If you want more information about current rebuilding, you can change the report interval using the --report-interval option.
The default value is set to 3600 seconds, but if you want a report every minute, you can launch rebuilding using openio-admin meta1 rebuild --report-interval 60.
By default, rebuilding uses only one worker; you can set a number of workers using the --workers option.
For example, openio-admin meta1 rebuild --workers 42 launches rebuilding using 42 workers.
Workers have a limited number of prefixes to rebuild per seconds, 30 by default: the goal is to maintain the cluster performance during the rebuilding.
You can change this value using the --items-per-second option. If you want to unlimit the number of prefixes to rebuild per second,
you can use openio-admin meta1 rebuild --items-per-second 0.