0a3a2a82e1
It is used to force remove a node from gossip membership if something goes wrong. Note: run the force_remove_endpoint api at the same time on _all_ the nodes in the cluster in order to prevent the removed nodes come back. Becasue nodes without running the force_remove_endpoint api cmd can gossip around the removed node information to other nodes in 2 * ring_delay (2 * 30 seconds by default) time. For instance, in a 3 nodes cluster, node 3 is decommissioned, to remove node 3 from gossip membership prior the auto removal (3 days by default), run the api cmd on both node 1 and node 2 at the same time. $ curl -X POST --header "Accept: application/json" "http://127.0.0.1:10000/gossiper/force_remove_endpoint/127.0.0.3" $ curl -X POST --header "Accept: application/json" "http://127.0.0.2:10000/gossiper/force_remove_endpoint/127.0.0.3" Then run 'nodetool gossipinfo' on all the nodes to check the removed nodes are not present. Fixes #2134 Closes #5436
79 lines
2.9 KiB
C++
79 lines
2.9 KiB
C++
/*
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* Copyright (C) 2015 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "gossiper.hh"
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#include "api/api-doc/gossiper.json.hh"
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#include "gms/gossiper.hh"
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namespace api {
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using namespace json;
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void set_gossiper(http_context& ctx, routes& r) {
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httpd::gossiper_json::get_down_endpoint.set(r, [] (const_req req) {
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auto res = gms::get_local_gossiper().get_unreachable_members();
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return container_to_vec(res);
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});
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httpd::gossiper_json::get_live_endpoint.set(r, [] (const_req req) {
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auto res = gms::get_local_gossiper().get_live_members();
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return container_to_vec(res);
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});
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httpd::gossiper_json::get_endpoint_downtime.set(r, [] (const_req req) {
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gms::inet_address ep(req.param["addr"]);
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return gms::get_local_gossiper().get_endpoint_downtime(ep);
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});
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httpd::gossiper_json::get_current_generation_number.set(r, [] (std::unique_ptr<request> req) {
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gms::inet_address ep(req->param["addr"]);
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return gms::get_local_gossiper().get_current_generation_number(ep).then([] (int res) {
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return make_ready_future<json::json_return_type>(res);
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});
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});
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httpd::gossiper_json::get_current_heart_beat_version.set(r, [] (std::unique_ptr<request> req) {
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gms::inet_address ep(req->param["addr"]);
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return gms::get_local_gossiper().get_current_heart_beat_version(ep).then([] (int res) {
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return make_ready_future<json::json_return_type>(res);
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});
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});
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httpd::gossiper_json::assassinate_endpoint.set(r, [](std::unique_ptr<request> req) {
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if (req->get_query_param("unsafe") != "True") {
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return gms::get_local_gossiper().assassinate_endpoint(req->param["addr"]).then([] {
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return make_ready_future<json::json_return_type>(json_void());
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});
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}
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return gms::get_local_gossiper().unsafe_assassinate_endpoint(req->param["addr"]).then([] {
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return make_ready_future<json::json_return_type>(json_void());
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});
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});
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httpd::gossiper_json::force_remove_endpoint.set(r, [](std::unique_ptr<request> req) {
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gms::inet_address ep(req->param["addr"]);
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return gms::get_local_gossiper().force_remove_endpoint(ep).then([] {
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return make_ready_future<json::json_return_type>(json_void());
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});
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});
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}
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}
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