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add sentinel command help (#7579)

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This commit is contained in:
Wen Hui 2020-08-08 15:28:44 -04:00 committed by GitHub
parent 96655bd231
commit 31c079cc71
1 changed files with 25 additions and 3 deletions
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28
src/sentinel.c
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@ -3044,7 +3044,30 @@ int sentinelIsQuorumReachable(sentinelRedisInstance *master, int *usableptr) {
}
void sentinelCommand(client *c) {
if (!strcasecmp(c->argv[1]->ptr,"masters")) {
if (c->argc == 2 && !strcasecmp(c->argv[1]->ptr,"help")) {
const char *help[] = {
"MASTERS -- Show a list of monitored masters and their state.",
"MASTER <master-name> -- Show the state and info of the specified master.",
"REPLICAS <master-name> -- Show a list of replicas for this master and their state.",
"SENTINELS <master-name> -- Show a list of Sentinel instances for this master and their state.",
"IS-MASTER-DOWN-BY-ADDR <ip> <port> <current-epoch> <runid> -- Check if the master specified by ip:port is down from current Sentinel's point of view.",
"GET-MASTER-ADDR-BY-NAME <master-name> -- Return the ip and port number of the master with that name.",
"RESET <pattern> -- Reset masters for specific master name matching this pattern.",
"FAILOVER <master-name> -- Manually failover a master node without asking for agreement from other Sentinels",
"PENDING-SCRIPTS -- Get pending scripts information.",
"MONITOR <name> <ip> <port> <quorum> -- Start monitoring a new master with the specified name, ip, port and quorum.",
"FLUSHCONFIG -- Force Sentinel to rewrite its configuration on disk, including the current Sentinel state.",
"REMOVE <master-name> -- Remove master from Sentinel's monitor list.",
"CKQUORUM <master-name> -- Check if the current Sentinel configuration is able to reach the quorum needed to failover a master "
"and the majority needed to authorize the failover.",
"SET <master-name> <option> <value> -- Set configuration paramters for certain masters.",
"INFO-CACHE <master-name> -- Return last cached INFO output from masters and all its replicas.",
"SIMULATE-FAILURE (crash-after-election|crash-after-promotion|help) -- Simulate a Sentinel crash.",
"HELP -- Prints this help.",
NULL
};
addReplyHelp(c, help);
} else if (!strcasecmp(c->argv[1]->ptr,"masters")) {
/* SENTINEL MASTERS */
if (c->argc != 2) goto numargserr;
addReplyDictOfRedisInstances(c,sentinel.masters);
@ -3353,8 +3376,7 @@ void sentinelCommand(client *c) {
}
addReply(c,shared.ok);
} else {
addReplyErrorFormat(c,"Unknown sentinel subcommand '%s'",
(char*)c->argv[1]->ptr);
addReplySubcommandSyntaxError(c);
}
return;