During my tests I add/delete nodes and change cluster configuration (e.g. from single to double redundancy mode). And it’s not clear to me what is the status of the cluster’s storage. I can see the following
unknown status for a while (right now for 2 hours).
Data: Replication health - (Re)initializing automatic data distribution Moving data - unknown (initializing) Sum of key-value sizes - unknown Disk space used - 90.891 GB
But if I run
du -hs on the new members, I can see that the data directory is increasing in size. But things move pretty slow.
So my questions are:
- Is it possible to change the speed of data migrations? I don’t see CPU/IO bottleneck on the hosts.
- Can I pause data migrations? For example in a case of service issues or some bottlenecks.
- Maybe there is another way to see the cluster status, amount of data to migrate and ETA?