Incrementally flush RDB on disk while loading it from a master.

[redis.git] / src / redis.c

diff --git a/src/redis.c b/src/redis.c
index f2c5e2c7004d34ae30946b6fe0bad29096df08bc..0d7432d23c4886329c19a26151b4e6481561b313 100644 (file)
--- a/src/redis.c
+++ b/src/redis.c
@@ -334,17 +334,6 @@ err:
     if (server.logfile) close(fd);
 }
 
-/* Redis generally does not try to recover from out of memory conditions
- * when allocating objects or strings, it is not clear if it will be possible
- * to report this condition to the client since the networking layer itself
- * is based on heap allocation for send buffers, so we simply abort.
- * At least the code will be simpler to read... */
-void oom(const char *msg) {
-    redisLog(REDIS_WARNING, "%s: Out of memory\n",msg);
-    sleep(1);
-    abort();
-}
-
 /* Return the UNIX time in microseconds */
 long long ustime(void) {
     struct timeval tv;
@@ -1337,9 +1326,9 @@ void initServer() {
     server.stop_writes_on_bgsave_err = 1;
     aeCreateTimeEvent(server.el, 1, serverCron, NULL, NULL);
     if (server.ipfd > 0 && aeCreateFileEvent(server.el,server.ipfd,AE_READABLE,
-        acceptTcpHandler,NULL) == AE_ERR) oom("creating file event");
+        acceptTcpHandler,NULL) == AE_ERR) redisPanic("Unrecoverable error creating server.ipfd file event.");
     if (server.sofd > 0 && aeCreateFileEvent(server.el,server.sofd,AE_READABLE,
-        acceptUnixHandler,NULL) == AE_ERR) oom("creating file event");
+        acceptUnixHandler,NULL) == AE_ERR) redisPanic("Unrecoverable error creating server.sofd file event.");
 
     if (server.aof_state == REDIS_AOF_ON) {
         server.aof_fd = open(server.aof_filename,
@@ -2090,9 +2079,10 @@ sds genRedisInfoString(char *section) {
 
             if (server.repl_state == REDIS_REPL_TRANSFER) {
                 info = sdscatprintf(info,
-                    "master_sync_left_bytes:%ld\r\n"
+                    "master_sync_left_bytes:%lld\r\n"
                     "master_sync_last_io_seconds_ago:%d\r\n"
-                    ,(long)server.repl_transfer_left,
+                    , (long long)
+                        (server.repl_transfer_size - server.repl_transfer_read),
                     (int)(server.unixtime-server.repl_transfer_lastio)
                 );
             }
@@ -2535,11 +2525,18 @@ void loadDataFromDisk(void) {
     }
 }
 
+void redisOutOfMemoryHandler(size_t allocation_size) {
+    redisLog(REDIS_WARNING,"Out Of Memory allocating %zu bytes!",
+        allocation_size);
+    redisPanic("OOM");
+}
+
 int main(int argc, char **argv) {
     struct timeval tv;
 
     /* We need to initialize our libraries, and the server configuration. */
     zmalloc_enable_thread_safeness();
+    zmalloc_set_oom_handler(redisOutOfMemoryHandler);
     srand(time(NULL)^getpid());
     gettimeofday(&tv,NULL);
     dictSetHashFunctionSeed(tv.tv_sec^tv.tv_usec^getpid());