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<fix>: prevent a server joining another cluster whlit it is already in one. #504

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May 6, 2024
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<fix>: prevent a server joining another cluster whlit it is already in one. #504

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6 changes: 6 additions & 0 deletions src/handle_join_leave.cxx
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Original file line number Diff line number Diff line change
Expand Up @@ -153,6 +153,12 @@ ptr<resp_msg> raft_server::handle_join_cluster_req(req_msg& req) {
return resp;
}

ptr<cluster_config> cur_config = get_config();
if (cur_config->get_servers().size() > 1) {
p_in("this server is already in a cluster, ignore the request");
return resp;
}

// MONSTOR-8244:
// Adding server may be called multiple times while previous process is
// in progress. It should gracefully handle the new request and should
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