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It's now possible to turn off and on the AOF via CONFIG

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This commit is contained in:
antirez 2010-05-19 11:06:43 +02:00
parent c7dadd1513
commit 2e5eb04e50
1 changed files with 81 additions and 2 deletions
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83
redis.c
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@ -8724,6 +8724,47 @@ static void aofRemoveTempFile(pid_t childpid) {
* as a fully non-blocking VM.
*/
/* Called when the user switches from "appendonly yes" to "appendonly no"
* at runtime using the CONFIG command. */
static void stopAppendOnly(void) {
flushAppendOnlyFile();
fsync(server.appendfd);
close(server.appendfd);
server.appendfd = -1;
server.appendseldb = -1;
server.appendonly = 0;
/* rewrite operation in progress? kill it, wait child exit */
if (server.bgsavechildpid != -1) {
int statloc;
kill(server.bgsavechildpid,SIGKILL);
wait3(&statloc,0,NULL);
/* reset the buffer accumulating changes while the child saves */
sdsfree(server.bgrewritebuf);
server.bgrewritebuf = sdsempty();
}
}
/* Called when the user switches from "appendonly no" to "appendonly yes"
* at runtime using the CONFIG command. */
static int startAppendOnly(void) {
server.appendonly = 1;
server.lastfsync = time(NULL);
server.appendfd = open(server.appendfilename,O_WRONLY|O_APPEND|O_CREAT,0644);
if (server.appendfd == -1) {
redisLog(REDIS_WARNING,"Used tried to switch on AOF via CONFIG, but I can't open the AOF file: %s",strerror(errno));
return REDIS_ERR;
}
if (rewriteAppendOnlyFileBackground() == REDIS_ERR) {
server.appendonly = 0;
close(server.appendfd);
redisLog(REDIS_WARNING,"Used tried to switch on AOF via CONFIG, I can't trigger a background AOF rewrite operation. Check the above logs for more info about the error.",strerror(errno));
return REDIS_ERR;
}
return REDIS_OK;
}
/* =================== Virtual Memory - Blocking Side ====================== */
static void vmInit(void) {
@ -9826,6 +9867,8 @@ static void handleClientsBlockedOnSwappedKey(redisDb *db, robj *key) {
static void configSetCommand(redisClient *c) {
robj *o = getDecodedObject(c->argv[3]);
long long ll;
if (!strcasecmp(c->argv[2]->ptr,"dbfilename")) {
zfree(server.dbfilename);
server.dbfilename = zstrdup(o->ptr);
@ -9836,7 +9879,13 @@ static void configSetCommand(redisClient *c) {
zfree(server.masterauth);
server.masterauth = zstrdup(o->ptr);
} else if (!strcasecmp(c->argv[2]->ptr,"maxmemory")) {
server.maxmemory = strtoll(o->ptr, NULL, 10);
if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
ll < 0) goto badfmt;
server.maxmemory = ll;
} else if (!strcasecmp(c->argv[2]->ptr,"timeout")) {
if (getLongLongFromObject(o,&ll) == REDIS_ERR ||
ll < 0 || ll > LONG_MAX) goto badfmt;
server.maxidletime = ll;
} else if (!strcasecmp(c->argv[2]->ptr,"appendfsync")) {
if (!strcasecmp(o->ptr,"no")) {
server.appendfsync = APPENDFSYNC_NO;
@ -9847,6 +9896,23 @@ static void configSetCommand(redisClient *c) {
} else {
goto badfmt;
}
} else if (!strcasecmp(c->argv[2]->ptr,"appendonly")) {
int old = server.appendonly;
int new = yesnotoi(o->ptr);
if (new == -1) goto badfmt;
if (old != new) {
if (new == 0) {
stopAppendOnly();
} else {
if (startAppendOnly() == REDIS_ERR) {
addReplySds(c,sdscatprintf(sdsempty(),
"-ERR Unable to turn on AOF. Check server logs.\r\n"));
decrRefCount(o);
return;
}
}
}
} else if (!strcasecmp(c->argv[2]->ptr,"save")) {
int vlen, j;
sds *v = sdssplitlen(o->ptr,sdslen(o->ptr)," ",1,&vlen);
@ -9927,11 +9993,24 @@ static void configGetCommand(redisClient *c) {
if (stringmatch(pattern,"maxmemory",0)) {
char buf[128];
snprintf(buf,128,"%llu\n",server.maxmemory);
ll2string(buf,128,server.maxmemory);
addReplyBulkCString(c,"maxmemory");
addReplyBulkCString(c,buf);
matches++;
}
if (stringmatch(pattern,"timeout",0)) {
char buf[128];
ll2string(buf,128,server.maxidletime);
addReplyBulkCString(c,"timeout");
addReplyBulkCString(c,buf);
matches++;
}
if (stringmatch(pattern,"appendonly",0)) {
addReplyBulkCString(c,"appendonly");
addReplyBulkCString(c,server.appendonly ? "yes" : "no");
matches++;
}
if (stringmatch(pattern,"appendfsync",0)) {
char *policy;