[KUDU-2239] Kudu Maste Rpc ListTabletServers Have Dead Tablet Server

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.5.0
• Component/s: api
• Assignee: Unassigned
• Reporter: yangz
• Created: 14/Dec/17 08:03
• Updated: 26/Dec/17 15:55

Description

It is the rpc request of the masterserviceimpl

virtual void ListTabletServers(const ListTabletServersRequestPB* req,
                                 ListTabletServersResponsePB* resp,
                                 rpc::RpcContext* rpc) OVERRIDE;

The rpc return all the tablet server, no matter it's live or dead. And the response have no description of the tablet server.

When I want to collect the metrics from all the tserver, I invoke the ListTabletServers rpc.
Then I send all the request to the tablet server to get the metrics. But some tablet server is dead.

I think this rpc will always return the live tablet server, or add some status of the tablet server, or
add a rpc to return the live tablet servers.