X-Git-Url: https://git.saurik.com/redis.git/blobdiff_plain/ca734d17ad9b7ea97a87bd048ad1c1e253ef67a6..dd1eefa4f3c89177cbe4f2e98dbd8f409ff87bc6:/src/aof.c diff --git a/src/aof.c b/src/aof.c index 4dbce394..ef72a2b1 100644 --- a/src/aof.c +++ b/src/aof.c @@ -218,9 +218,12 @@ int loadAppendOnlyFile(char *filename) { 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) + if (fp && redis_fstat(fileno(fp),&sb) != -1 && sb.st_size == 0) { + fclose(fp); return REDIS_ERR; + } if (fp == NULL) { redisLog(REDIS_WARNING,"Fatal error: can't open the append log file for reading: %s",strerror(errno)); @@ -232,6 +235,8 @@ int loadAppendOnlyFile(char *filename) { server.appendonly = 0; fakeClient = createFakeClient(); + startLoading(fp); + while(1) { int argc, j; unsigned long len; @@ -239,7 +244,12 @@ int loadAppendOnlyFile(char *filename) { 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)) @@ -274,20 +284,11 @@ int loadAppendOnlyFile(char *filename) { /* 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; - } - } + /* Clean up. Command code may have changed argv/argc so we use the + * argv/argc of the client instead of the local variables. */ + for (j = 0; j < fakeClient->argc; j++) + decrRefCount(fakeClient->argv[j]); + zfree(fakeClient->argv); } /* This point can only be reached when EOF is reached without errors. @@ -297,6 +298,7 @@ int loadAppendOnlyFile(char *filename) { fclose(fp); freeFakeClient(fakeClient); server.appendonly = appendonly; + stopLoading(); return REDIS_OK; readerr: @@ -346,25 +348,14 @@ int rewriteAppendOnlyFile(char *filename) { /* Iterate this DB writing every entry */ while((de = dictNext(di)) != NULL) { - sds keystr = dictGetEntryKey(de); + sds keystr; 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 */ @@ -440,21 +431,55 @@ int rewriteAppendOnlyFile(char *filename) { } } else if (o->type == REDIS_ZSET) { /* Emit the ZADDs needed to rebuild the sorted set */ - zset *zs = o->ptr; - dictIterator *di = dictGetIterator(zs->dict); - dictEntry *de; - - while((de = dictNext(di)) != NULL) { - char cmd[]="*4\r\n$4\r\nZADD\r\n"; - robj *eleobj = dictGetEntryKey(de); - double *score = dictGetEntryVal(de); - - if (fwrite(cmd,sizeof(cmd)-1,1,fp) == 0) goto werr; - if (fwriteBulkObject(fp,&key) == 0) goto werr; - if (fwriteBulkDouble(fp,*score) == 0) goto werr; - if (fwriteBulkObject(fp,eleobj) == 0) goto werr; + char cmd[]="*4\r\n$4\r\nZADD\r\n"; + + if (o->encoding == REDIS_ENCODING_ZIPLIST) { + unsigned char *zl = o->ptr; + unsigned char *eptr, *sptr; + unsigned char *vstr; + unsigned int vlen; + long long vll; + double score; + + eptr = ziplistIndex(zl,0); + redisAssert(eptr != NULL); + sptr = ziplistNext(zl,eptr); + redisAssert(sptr != NULL); + + while (eptr != NULL) { + redisAssert(ziplistGet(eptr,&vstr,&vlen,&vll)); + score = zzlGetScore(sptr); + + if (fwrite(cmd,sizeof(cmd)-1,1,fp) == 0) goto werr; + if (fwriteBulkObject(fp,&key) == 0) goto werr; + if (fwriteBulkDouble(fp,score) == 0) goto werr; + if (vstr != NULL) { + if (fwriteBulkString(fp,(char*)vstr,vlen) == 0) + goto werr; + } else { + if (fwriteBulkLongLong(fp,vll) == 0) + goto werr; + } + zzlNext(zl,&eptr,&sptr); + } + } else if (o->encoding == REDIS_ENCODING_SKIPLIST) { + zset *zs = o->ptr; + dictIterator *di = dictGetIterator(zs->dict); + dictEntry *de; + + while((de = dictNext(di)) != NULL) { + robj *eleobj = dictGetEntryKey(de); + double *score = dictGetEntryVal(de); + + if (fwrite(cmd,sizeof(cmd)-1,1,fp) == 0) goto werr; + if (fwriteBulkObject(fp,&key) == 0) goto werr; + if (fwriteBulkDouble(fp,*score) == 0) goto werr; + if (fwriteBulkObject(fp,eleobj) == 0) goto werr; + } + dictReleaseIterator(di); + } else { + redisPanic("Unknown sorted set encoding"); } - dictReleaseIterator(di); } else if (o->type == REDIS_HASH) { char cmd[]="*4\r\n$4\r\nHSET\r\n"; @@ -499,7 +524,6 @@ int rewriteAppendOnlyFile(char *filename) { if (fwriteBulkObject(fp,&key) == 0) goto werr; if (fwriteBulkLongLong(fp,expiretime) == 0) goto werr; } - if (swapped) decrRefCount(o); } dictReleaseIterator(di); } @@ -543,13 +567,16 @@ int rewriteAppendOnlyFileBackground(void) { pid_t childpid; if (server.bgrewritechildpid != -1) return REDIS_ERR; - if (server.vm_enabled) waitEmptyIOJobsQueue(); + if (server.ds_enabled != 0) { + redisLog(REDIS_WARNING,"BGREWRITEAOF called with diskstore enabled: AOF is not supported when diskstore is enabled. Operation not performed."); + return REDIS_ERR; + } 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); @@ -599,10 +626,7 @@ void aofRemoveTempFile(pid_t childpid) { /* A background append only file rewriting (BGREWRITEAOF) terminated its work. * Handle this. */ -void backgroundRewriteDoneHandler(int statloc) { - int exitcode = WEXITSTATUS(statloc); - int bysignal = WIFSIGNALED(statloc); - +void backgroundRewriteDoneHandler(int exitcode, int bysignal) { if (!bysignal && exitcode == 0) { int fd; char tmpfile[256]; @@ -650,7 +674,7 @@ void backgroundRewriteDoneHandler(int statloc) { } else { redisLog(REDIS_WARNING, "Background append only file rewriting terminated by signal %d", - WTERMSIG(statloc)); + bysignal); } cleanup: sdsfree(server.bgrewritebuf);