c->querybuf = sdsempty();
c->argc = 0;
c->argv = NULL;
+ c->bufpos = 0;
c->flags = 0;
/* We set the fake client as a slave waiting for the synchronization
* so that Redis will not try to send replies to this client. */
FILE *fp = fopen(filename,"r");
struct redis_stat sb;
int appendonly = server.appendonly;
+ long loops = 0;
if (redis_fstat(fileno(fp),&sb) != -1 && sb.st_size == 0)
return REDIS_ERR;
server.appendonly = 0;
fakeClient = createFakeClient();
+ startLoading(fp);
+
while(1) {
int argc, j;
unsigned long len;
char buf[128];
sds argsds;
struct redisCommand *cmd;
- int force_swapout;
+
+ /* Serve the clients from time to time */
+ if (!(loops++ % 1000)) {
+ loadingProgress(ftello(fp));
+ aeProcessEvents(server.el, AE_FILE_EVENTS|AE_DONT_WAIT);
+ }
if (fgets(buf,sizeof(buf),fp) == NULL) {
if (feof(fp))
redisLog(REDIS_WARNING,"Unknown command '%s' reading the append only file", argv[0]->ptr);
exit(1);
}
- /* Try object encoding */
- if (cmd->flags & REDIS_CMD_BULK)
- argv[argc-1] = tryObjectEncoding(argv[argc-1]);
/* Run the command in the context of a fake client */
fakeClient->argc = argc;
fakeClient->argv = argv;
cmd->proc(fakeClient);
- /* Discard the reply objects list from the fake client */
- while(listLength(fakeClient->reply))
- listDelNode(fakeClient->reply,listFirst(fakeClient->reply));
+
+ /* The fake client should not have a reply */
+ redisAssert(fakeClient->bufpos == 0 && listLength(fakeClient->reply) == 0);
+
/* Clean up, ready for the next command */
for (j = 0; j < argc; j++) decrRefCount(argv[j]);
zfree(argv);
- /* Handle swapping while loading big datasets when VM is on */
- force_swapout = 0;
- if ((zmalloc_used_memory() - server.vm_max_memory) > 1024*1024*32)
- force_swapout = 1;
-
- if (server.vm_enabled && force_swapout) {
- while (zmalloc_used_memory() > server.vm_max_memory) {
- if (vmSwapOneObjectBlocking() == REDIS_ERR) break;
- }
- }
}
/* This point can only be reached when EOF is reached without errors.
fclose(fp);
freeFakeClient(fakeClient);
server.appendonly = appendonly;
+ stopLoading();
return REDIS_OK;
readerr:
}
exit(1);
fmterr:
- redisLog(REDIS_WARNING,"Bad file format reading the append only file: make a backup of your AOF file, then use ./redis-check-dump --fix <filename>");
+ redisLog(REDIS_WARNING,"Bad file format reading the append only file: make a backup of your AOF file, then use ./redis-check-aof --fix <filename>");
exit(1);
}
-/* Write binary-safe string into a file in the bulkformat
- * $<count>\r\n<payload>\r\n */
-int fwriteBulkString(FILE *fp, char *s, unsigned long len) {
- char cbuf[128];
- int clen;
- cbuf[0] = '$';
- clen = 1+ll2string(cbuf+1,sizeof(cbuf)-1,len);
- cbuf[clen++] = '\r';
- cbuf[clen++] = '\n';
- if (fwrite(cbuf,clen,1,fp) == 0) return 0;
- if (len > 0 && fwrite(s,len,1,fp) == 0) return 0;
- if (fwrite("\r\n",2,1,fp) == 0) return 0;
- return 1;
-}
-
-/* Write a double value in bulk format $<count>\r\n<payload>\r\n */
-int fwriteBulkDouble(FILE *fp, double d) {
- char buf[128], dbuf[128];
-
- snprintf(dbuf,sizeof(dbuf),"%.17g\r\n",d);
- snprintf(buf,sizeof(buf),"$%lu\r\n",(unsigned long)strlen(dbuf)-2);
- if (fwrite(buf,strlen(buf),1,fp) == 0) return 0;
- if (fwrite(dbuf,strlen(dbuf),1,fp) == 0) return 0;
- return 1;
-}
-
-/* Write a long value in bulk format $<count>\r\n<payload>\r\n */
-int fwriteBulkLongLong(FILE *fp, long long l) {
- char bbuf[128], lbuf[128];
- unsigned int blen, llen;
- llen = ll2string(lbuf,32,l);
- blen = snprintf(bbuf,sizeof(bbuf),"$%u\r\n%s\r\n",llen,lbuf);
- if (fwrite(bbuf,blen,1,fp) == 0) return 0;
- return 1;
-}
-
-/* Delegate writing an object to writing a bulk string or bulk long long. */
-int fwriteBulkObject(FILE *fp, robj *obj) {
- /* Avoid using getDecodedObject to help copy-on-write (we are often
- * in a child process when this function is called). */
- if (obj->encoding == REDIS_ENCODING_INT) {
- return fwriteBulkLongLong(fp,(long)obj->ptr);
- } else if (obj->encoding == REDIS_ENCODING_RAW) {
- return fwriteBulkString(fp,obj->ptr,sdslen(obj->ptr));
- } else {
- redisPanic("Unknown string encoding");
- }
-}
-
/* Write a sequence of commands able to fully rebuild the dataset into
* "filename". Used both by REWRITEAOF and BGREWRITEAOF. */
int rewriteAppendOnlyFile(char *filename) {
sds keystr = dictGetEntryKey(de);
robj key, *o;
time_t expiretime;
- int swapped;
keystr = dictGetEntryKey(de);
o = dictGetEntryVal(de);
initStaticStringObject(key,keystr);
- /* If the value for this key is swapped, load a preview in memory.
- * We use a "swapped" flag to remember if we need to free the
- * value object instead to just increment the ref count anyway
- * in order to avoid copy-on-write of pages if we are forked() */
- if (!server.vm_enabled || o->storage == REDIS_VM_MEMORY ||
- o->storage == REDIS_VM_SWAPPING) {
- swapped = 0;
- } else {
- o = vmPreviewObject(o);
- swapped = 1;
- }
+
expiretime = getExpire(db,&key);
/* Save the key and associated value */
if (fwriteBulkObject(fp,&key) == 0) goto werr;
if (fwriteBulkLongLong(fp,expiretime) == 0) goto werr;
}
- if (swapped) decrRefCount(o);
}
dictReleaseIterator(di);
}
pid_t childpid;
if (server.bgrewritechildpid != -1) return REDIS_ERR;
- if (server.vm_enabled) waitEmptyIOJobsQueue();
+ redisAssert(server.ds_enabled == 0);
if ((childpid = fork()) == 0) {
/* Child */
char tmpfile[256];
- if (server.vm_enabled) vmReopenSwapFile();
- close(server.fd);
+ if (server.ipfd > 0) close(server.ipfd);
+ if (server.sofd > 0) close(server.sofd);
snprintf(tmpfile,256,"temp-rewriteaof-bg-%d.aof", (int) getpid());
if (rewriteAppendOnlyFile(tmpfile) == REDIS_OK) {
_exit(0);
void bgrewriteaofCommand(redisClient *c) {
if (server.bgrewritechildpid != -1) {
- addReplySds(c,sdsnew("-ERR background append only file rewriting already in progress\r\n"));
+ addReplyError(c,"Background append only file rewriting already in progress");
return;
}
if (rewriteAppendOnlyFileBackground() == REDIS_OK) {
- char *status = "+Background append only file rewriting started\r\n";
- addReplySds(c,sdsnew(status));
+ addReplyStatus(c,"Background append only file rewriting started");
} else {
addReply(c,shared.err);
}
projects / redis.git / blobdiff