Today, etcdctl endpoint health only performs a quorum GET. If server is corrupted or exceeded quota (which put the server into read only mode), this command incorrectly returns healthy.

Index constraint generation currently supports constraints from LIKE expressions, but the opt statistics code does not. A simple improvement would be to handle the case where the expression is exactly equivalent to a range of values.

Note that such a rule would need to handle escaping correctly (which the index constraints code currently does not, see #44123).

Now insert and query share the resource ( Max Process Count control) 。 When the query with high TPS，the insert will get error (“error: too many process”). I think separator the resource for Insert and Query will makes sense. Ensure enough resource for insert。It looks like Use Yarn， Insert and Query use the different resource quota。
Or the simple way , Can we set Ratio for Insert and

The old restore supports adding prefix and suffix to the backup data. This allows us to restore a key space (say [a, b)) to a new key space (say [awesome_a, awesome_b).

This feature is useful in:

• Performance testing: We do not want to throw away existing loaded data in the cluster because loading a huge DB takes time;
• Cross-verification: Users may want to verify the restored data in the

Hello Philip!
I think there is an issue with this part of the code of rqlite (store/store.go).

func (s *Store) Database(leader bool) ([]byte, error) {
	if leader && s.raft.State() != raft.Leader {
		return nil, ErrNotLeader
	}
	// Ensure only one snapshot can take place at once, and block all queries.
	s.mu.Lock()
	defer s.mu.Unlock()

	f, err := ioutil.TempFile("", "rqlilte-snap-

Sample screenshot from the http://yb-master:7000/tablet-servers view of a Yugabyte universe with a primary cluster + read-replica cluster:

As you can see, the Tablet-Peers by Availability Zone section simply summarizes by

Currently, Stats command in the protocol and olric-stats tool only work on a cluster member. So if you run the following command:

olric-stats -a=cluster-member:port

It returns statistics for only one cluster member. This is not very useful most of the time. We need to aggregate all statistics.

-s/--summary would also be useful.

See TODO this is wrong, we're going to construct malformed Slice representation if source > charLength in the code.

Now that we support more than 1 data type, we should include the values data type in cache nodes. This give us a way of easily identifying what type of data a key points to e.g. string, queue (and more types in the future)

Currently a cache node object consists of a Key, a Value and a TTL. We should also add a field specifying the type of the Value