void masterconn_metachanges_log(masterconn *eptr,const uint8_t *data,uint32_t length) {
char line[1024];
uint64_t version;
if (length==1 && data[0]==0x55) {
fs_storeall(1);
return;
}
if (length<10) {
syslog(LOG_NOTICE,"MATOML_METACHANGES_LOG - wrong size (%"PRIu32"/9+data)",length);
eptr->mode = KILL;
return;
}
if (data[0]!=0xFF) {
syslog(LOG_NOTICE,"MATOML_METACHANGES_LOG - wrong packet");
eptr->mode = KILL;
return;
}
if (data[length-1]!='\0') {
syslog(LOG_NOTICE,"MATOML_METACHANGES_LOG - invalid string");
eptr->mode = KILL;
return;
}
data++;
version = get64bit(&data);
if (version<currentlogversion) {
syslog(LOG_WARNING, "get old change: %"PRIu64":%"PRIu64", ignore",currentlogversion,version-1);
return;
}
if (currentlogversion>0 && version>currentlogversion) {
syslog(LOG_WARNING, "some changes lost: [%"PRIu64"-%"PRIu64"], download metadata again",currentlogversion,version-1);
masterconn_metadownloadinit();
return;
}
if (version == fs_getversion()) {
changelog(version, "%s", (const char*)data);
currentlogversion = version+1;
sprintf(line, ": %s\n", data);
if (restore_line("(live changelog)", version, line)!=STATUS_OK) {
syslog(LOG_WARNING, "replay change log failed: version=%"PRIu64", download metadata again",version);
masterconn_metadownloadinit();
} else if (fs_getversion() != version+1) {
syslog(LOG_WARNING, "restored version not match: %"PRIu64"!=%"PRIu64", download metadata again",fs_getversion(),version+1);
masterconn_metadownloadinit();
}
} else {
syslog(LOG_WARNING, "version not match: %"PRIu64"!=%"PRIu64", download metadata again",fs_getversion(),version);
masterconn_metadownloadinit();
}
}
int merger_start(uint32_t files,char **filenames,uint64_t maxhole,uint64_t maxlastlv) {
uint32_t i;
heapsize = 0;
heap = (hentry*)malloc(sizeof(hentry)*files);
if (heap==NULL) {
return -1;
}
for (i=0 ; i<files ; i++) {
merger_new_entry(filenames[i]);
// printf("file: %s / firstid: %"PRIu64"\n",filenames[i],heap[heapsize].nextid);
if (heap[heapsize].nextid<0) {
merger_delete_entry();
} else {
heapsize++;
merger_heap_sort_up();
}
}
maxidhole = maxhole;
lastlv = maxlastlv;
firstlv = fs_getversion();
// for (i=0 ; i<heapsize ; i++) {
// printf("heap: %u / firstid: %"PRIu64"\n",i,heap[i].nextid);
// }
return 0;
}
int restore(const char *filename,uint64_t lv,char *ptr) {
int status;
if (lastv==0 || v==0) {
v = fs_getversion();
lastv = lv-1;
lastfn = "(no file)";
}
if (vlevel>1) {
printf("filename: %s ; current meta version: %"PRIu64" ; previous changeid: %"PRIu64" ; current changeid: %"PRIu64" ; change data%s",filename,v,lastv,lv,ptr);
}
if (lv<lastv) {
printf("merge error - possibly corrupted input file - ignore entry (filename: %s)\n",filename);
return 0;
} else if (lv>=v) {
if (lv==lastv) {
if (vlevel>1) {
printf("duplicated entry: %"PRIu64" (previous file: %s, current file: %s)\n",lv,lastfn,filename);
}
} else if (lv>lastv+1) {
printf("hole in change files (entries from %s:%"PRIu64" to %s:%"PRIu64" are missing) - add more files\n",lastfn,lastv+1,filename,lv-1);
return -2;
} else {
if (vlevel>0) {
printf("%s: change%s",filename,ptr);
}
status = restore_line(filename,lv,ptr);
if (status<0) { // parse error - just ignore this line
return 0;
}
if (status>0) { // other errors - stop processing data
return -1;
}
v = fs_getversion();
if (lv+1!=v) {
printf("%s:%"PRIu64": version mismatch\n",filename,lv);
return -1;
}
}
}
lastv = lv;
lastfn = filename;
return 0;
}
int restore(uint64_t lv,char *ptr) {
if (lastv==0 || v==0) {
v = fs_getversion();
lastv = lv-1;
}
if (vlevel>1) {
printf("current meta version: %"PRIu64" ; previous changeid: %"PRIu64" ; current changeid: %"PRIu64" ; change data%s",v,lastv,lv,ptr);
}
if (lv<lastv) {
printf("merge error - possibly corrupted input file - ignore entry\n");
return 0;
} else if (lv>=v) {
if (lv==lastv) {
if (vlevel>1) {
printf("duplicated entry: %"PRIu64"\n",lv);
}
} else if (lv>lastv+1) {
printf("hole in change files (entries from %"PRIu64" to %"PRIu64" are missing) - add more files\n",lastv+1,lv-1);
return -1;
} else {
if (vlevel>0) {
printf("change%s",ptr);
}
if (restore_line(lv,ptr)!=STATUS_OK) {
return -1;
}
v = fs_getversion();
if (lv+1!=v) {
printf("%"PRIu64": version mismatch\n",lv);
return -1;
}
}
}
lastv = lv;
return 0;
}
int masterconn_init(void) {
uint32_t ReconnectionDelay;
masterconn *eptr;
ReconnectionDelay = cfg_getuint32("MASTER_RECONNECTION_DELAY",5);
MasterHost = cfg_getstr("MASTER_HOST","mfsmaster");
MasterPort = cfg_getstr("MASTER_PORT","9419");
BindHost = cfg_getstr("BIND_HOST","*");
Timeout = cfg_getuint32("MASTER_TIMEOUT",10);
BackLogsNumber = cfg_getuint32("BACK_LOGS",50);
BackMetaCopies = cfg_getuint32("BACK_META_KEEP_PREVIOUS",3);
if (Timeout>65536) {
Timeout=65535;
}
if (Timeout<10) {
Timeout=10;
}
if (BackLogsNumber<5) {
BackLogsNumber=5;
}
if (BackLogsNumber>10000) {
BackLogsNumber=10000;
}
eptr = masterconnsingleton = malloc(sizeof(masterconn));
passert(eptr);
eptr->masteraddrvalid = 0;
eptr->mode = FREE;
eptr->pdescpos = -1;
eptr->metafd = -1;
eptr->oldmode = 0;
currentlogversion = fs_getversion();
if (!fs_ismastermode() && masterconn_initconnect(eptr)<0) {
return -1;
}
reconnect_hook = main_timeregister(TIMEMODE_RUN_LATE,ReconnectionDelay,0,masterconn_reconnect);
main_destructregister(masterconn_term);
main_pollregister(masterconn_desc,masterconn_serve);
main_reloadregister(masterconn_reload);
main_timeregister(TIMEMODE_RUN_LATE,60,0,masterconn_sessionsdownloadinit);
return 0;
}
