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DEBUG command self documentation.

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This commit is contained in:
antirez 2016-05-04 12:45:55 +02:00
parent b5352eea51
commit 840ac20855
2 changed files with 49 additions and 2 deletions
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49
src/debug.c
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@ -259,7 +259,54 @@ void inputCatSds(void *result, const char *str) {
#endif
void debugCommand(client *c) {
if (!strcasecmp(c->argv[1]->ptr,"segfault")) {
if (c->argc == 1) {
addReplyError(c,"You must specify a subcommand for DEBUG. Try DEBUG HELP for info.");
return;
}
if (!strcasecmp(c->argv[1]->ptr,"help")) {
void *blenp = addDeferredMultiBulkLength(c);
int blen = 0;
blen++; addReplyStatus(c,
"DEBUG <subcommand> arg arg ... arg. Subcommands:");
blen++; addReplyStatus(c,
"segfault -- Crash the server with sigsegv.");
blen++; addReplyStatus(c,
"restart -- Graceful restart: save config, db, restart.");
blen++; addReplyStatus(c,
"crash-and-recovery <milliseconds> -- Hard crash and restart after <milliseconds> delay.");
blen++; addReplyStatus(c,
"assert -- Crash by assertion failed.");
blen++; addReplyStatus(c,
"reload -- Save the RDB on disk and reload it back in memory.");
blen++; addReplyStatus(c,
"loadaof -- Flush the AOF buffers on disk and reload the AOF in memory.");
blen++; addReplyStatus(c,
"object <key> -- Show low level info about key and associated value.");
blen++; addReplyStatus(c,
"sdslen <key> -- Show low level SDS string info representing key and value.");
blen++; addReplyStatus(c,
"populate <count> [prefix] -- Create <count> string keys named key:<num>. If a prefix is specified is used instead of the 'key' prefix.");
blen++; addReplyStatus(c,
"digest -- Outputs an hex signature representing the current DB content.");
blen++; addReplyStatus(c,
"sleep <seconds> -- Stop the server for <seconds>. Decimals allowed.");
blen++; addReplyStatus(c,
"set-active-expire (0|1) -- Setting it to 0 disables expiring keys in background when they are not accessed (otherwise the Redis behavior). Setting it to 1 reenables back the default.");
blen++; addReplyStatus(c,
"lua-always-replicate-commands (0|1) -- Setting it to 1 makes Lua replication defaulting to replicating single commands, without the script having to enable effects replication.");
blen++; addReplyStatus(c,
"error <string> -- Return a Redis protocol error with <string> as message. Useful for clients unit tests to simulate Redis errors.");
blen++; addReplyStatus(c,
"structsize -- Return the size of different Redis core C structures.");
blen++; addReplyStatus(c,
"htstats <dbid> -- Return hash table statistics of the specified Redis database.");
blen++; addReplyStatus(c,
"jemalloc info -- Show internal jemalloc statistics.");
blen++; addReplyStatus(c,
"jemalloc purge -- Force jemalloc to release unused memory.");
setDeferredMultiBulkLength(c,blenp,blen);
} else if (!strcasecmp(c->argv[1]->ptr,"segfault")) {
*((char*)-1) = 'x';
} else if (!strcasecmp(c->argv[1]->ptr,"restart") ||
!strcasecmp(c->argv[1]->ptr,"crash-and-recover"))

2
src/server.c
View File

@ -253,7 +253,7 @@ struct redisCommand redisCommandTable[] = {
{"persist",persistCommand,2,"wF",0,NULL,1,1,1,0,0},
{"slaveof",slaveofCommand,3,"ast",0,NULL,0,0,0,0,0},
{"role",roleCommand,1,"lst",0,NULL,0,0,0,0,0},
{"debug",debugCommand,-2,"as",0,NULL,0,0,0,0,0},
{"debug",debugCommand,-1,"as",0,NULL,0,0,0,0,0},
{"config",configCommand,-2,"art",0,NULL,0,0,0,0,0},
{"subscribe",subscribeCommand,-2,"rpslt",0,NULL,0,0,0,0,0},
{"unsubscribe",unsubscribeCommand,-1,"rpslt",0,NULL,0,0,0,0,0},