mirror of
https://github.com/openvswitch/ovs
synced 2025-08-22 09:58:01 +00:00
1b1d2e6daa
This commit adds support for OVSDB clustering via Raft. Please read ovsdb(7) for information on how to set up a clustered database. It is simple and boils down to running "ovsdb-tool create-cluster" on one server and "ovsdb-tool join-cluster" on each of the others and then starting ovsdb-server in the usual way on all of them. One you have a clustered database, you configure ovn-controller and ovn-northd to use it by pointing them to all of the servers, e.g. where previously you might have said "tcp:1.2.3.4" was the database server, now you say that it is "tcp:1.2.3.4,tcp:5.6.7.8,tcp:9.10.11.12". This also adds support for database clustering to ovs-sandbox. Acked-by: Justin Pettit <jpettit@ovn.org> Tested-by: aginwala <aginwala@asu.edu> Signed-off-by: Ben Pfaff <blp@ovn.org>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/* Copyright (c) 2017 Nicira, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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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#include <config.h>
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#include "ovsdb-session.h"
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#include <stdbool.h>
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#include <stddef.h>
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#include <string.h>
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#include "svec.h"
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#include "util.h"
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#include "uuid.h"
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static const char *
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next_remote(const char *s)
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{
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for (const char *delimiter = strchr(s, ','); delimiter;
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delimiter = strchr(delimiter + 1, ',')) {
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const char *p = delimiter + 1;
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p += strspn(p, " \t");
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size_t n_letters = strspn(p, "abcdefghijklmnopqrstuvwxyz");
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if (n_letters && p[n_letters] == ':') {
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return delimiter;
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}
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}
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return NULL;
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}
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/* Parses string 's' into comma-delimited substrings and adds each of them into
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* 'remotes'. If one of the substrings is of the form "cid:<uuid>", fills
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* '*cid' with the UUID (and omits it from 'remotes'), otherwise initializes
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* '*cid' to UUID_ZERO. */
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void
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ovsdb_session_parse_remote(const char *s,
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struct svec *remotes, struct uuid *cid)
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{
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*cid = UUID_ZERO;
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for (;;) {
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/* Skip white space. */
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s += strspn(s, " \t");
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if (*s == '\0') {
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break;
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}
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/* Find the start of the next remote */
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const char *delimiter = next_remote(s);
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if (!delimiter) {
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svec_add(remotes, s);
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break;
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}
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svec_add_nocopy(remotes, xmemdup0(s, delimiter - s));
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s = delimiter + 1;
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}
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size_t i;
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for (i = 0; i < remotes->n; i++) {
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const char *name = remotes->names[i];
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struct uuid uuid;
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if (!strncmp(name, "cid:", 4) && uuid_from_string(&uuid, name + 4)) {
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*cid = uuid;
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svec_del(remotes, name);
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break;
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}
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}
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}
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