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https://github.com/scylladb/scylladb.git
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13b72c7b92
"
This is a backport of CASSANDRA-8236.
Before this patch, scylla sends the node UP event to cql client when it
sees a new node joins the cluster, i.e., when a new node's status
becomes NORMAL. The problem is, at this time, the cql server might not
be ready yet. Once the client receives the UP event, it tries to
connect to the new node's cql port and fails.
To fix, a new application_sate::RPC_READY is introduced, new node sets
RPC_READY to false when it starts gossip in the very beginning and sets
RPC_READY to true when the cql server is ready.
The RPC_READY is a bad name but I think it is better to follow Cassandra.
Nodes with or without this patch are supposed to work together with no
problem.
Refs #3843
"
* 'asias/node_up_down.upstream.v4.1' of github.com:scylladb/seastar-dev:
storage_service: Use cql_ready facility
storage_service: Handle application_state::RPC_READY
storage_service: Add notify_cql_change
storage_service: Add debug log in notify_joined
storage_service: Add extra check in notify_joined
storage_service: Add notify_joined
storage_service: Add debug log in notify_up
storage_service: Add extra check in notify_up
storage_service: Add notify_up
storage_service: Make notify_left log debug level
storage_service: Introduce notify_left
storage_service: Add debug log in notify_down
storage_service: Introduce notify_down
storage_service: Add set_cql_ready
gossip: Add gossiper::is_cql_ready
gms: Add endpoint_state::is_cql_ready
gms: Add application_state::RPC_READY
gms: Introduce cql_ready in versioned_value
(cherry picked from commit a42b2895c2)
81 lines
3.0 KiB
C++
81 lines
3.0 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Modified by ScyllaDB
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* Copyright 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 "gms/application_state.hh"
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#include <seastar/core/sstring.hh>
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#include <ostream>
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#include <map>
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#include "seastarx.hh"
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namespace gms {
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static const std::map<application_state, sstring> application_state_names = {
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{application_state::STATUS, "STATUS"},
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{application_state::LOAD, "LOAD"},
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{application_state::SCHEMA, "SCHEMA"},
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{application_state::DC, "DC"},
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{application_state::RACK, "RACK"},
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{application_state::RELEASE_VERSION, "RELEASE_VERSION"},
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{application_state::REMOVAL_COORDINATOR, "REMOVAL_COORDINATOR"},
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{application_state::INTERNAL_IP, "INTERNAL_IP"},
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{application_state::RPC_ADDRESS, "RPC_ADDRESS"},
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{application_state::SEVERITY, "SEVERITY"},
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{application_state::NET_VERSION, "NET_VERSION"},
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{application_state::HOST_ID, "HOST_ID"},
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{application_state::TOKENS, "TOKENS"},
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{application_state::SUPPORTED_FEATURES, "SUPPORTED_FEATURES"},
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{application_state::CACHE_HITRATES, "CACHE_HITRATES"},
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{application_state::SCHEMA_TABLES_VERSION, "SCHEMA_TABLES_VERSION"},
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{application_state::RPC_READY, "RPC_READY"},
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};
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std::ostream& operator<<(std::ostream& os, const application_state& m) {
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auto it = application_state_names.find(m);
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if (it != application_state_names.end()) {
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os << application_state_names.at(m);
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} else {
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os << "UNKNOWN";
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}
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return os;
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}
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}
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