change comment/information in config files and codes

conf/storage.conf

@@ -24,31 +24,37 @@ client_bind=true
 port=23000
 
 # connect timeout in seconds
-# default value is 30s
+# default value is 30
 # Note: in the intranet network (LAN), 2 seconds is enough.
 connect_timeout=10
 
 # network timeout in seconds for send and recv
-# default value is 30s
+# default value is 30
 network_timeout=60
 
-# heart beat interval in seconds
+# the heart beat interval in seconds
+# the storage server send heartbeat to tracker server periodically
+# default value is 30
 heart_beat_interval=30
 
 # disk usage report interval in seconds
+# the storage server send disk usage report to tracker server periodically
+# default value is 300
 stat_report_interval=60
 
 # the base path to store data and log files
+# NOTE: the binlog files maybe are large, make sure
+#       the base path has enough disk space
 base_path=/home/yuqing/fastdfs
 
 # max concurrent connections the server supported
-# default value is 256
-# more max_connections means more memory will be used
 # you should set this parameter larger, eg. 10240
+# default value is 256
 max_connections=1024
 
 # the buff size to recv / send data from/to network
 # this parameter must more than 8KB
+# 256KB or 512KB is recommended
 # default value is 64KB
 # since V2.00
 buff_size = 256KB
@@ -295,7 +301,7 @@ connection_pool_max_idle_time = 3600
 # if compress the binlog files by gzip
 # default value is false
 # since V6.01
-compress_binlog = false
+compress_binlog = true
 
 # try to compress binlog time, time format: Hour:Minute
 # Hour from 0 to 23, Minute from 0 to 59

conf/tracker.conf

@@ -11,19 +11,20 @@ bind_addr=
 port=22122
 
 # connect timeout in seconds
-# default value is 30s
+# default value is 30
 # Note: in the intranet network (LAN), 2 seconds is enough.
 connect_timeout=10
 
 # network timeout in seconds for send and recv
-# default value is 30s
+# default value is 30
 network_timeout=60
 
 # the base path to store data and log files
 base_path=/home/yuqing/fastdfs
 
-# max concurrent connections this server supported
-# you should set this parameter larger, eg. 102400
+# max concurrent connections this server support
+# you should set this parameter larger, eg. 10240
+# default value is 256
 max_connections=1024
 
 # accept thread count

storage/storage_service.c

@@ -1834,9 +1834,11 @@ static void *accept_thread_entrance(void* arg)
 		pTask = free_queue_pop();
 		if (pTask == NULL)
 		{
-			logError("file: "__FILE__", line: %d, " \
-				"malloc task buff failed", \
-				__LINE__);
+			logError("file: "__FILE__", line: %d, "
+				"malloc task buff fail, you should "
+				"increase the parameter \"max_connections\" "
+                "in storage.conf, or check your applications "
+                "for connection leaks", __LINE__);
 			close(incomesock);
 			continue;
 		}

tracker/tracker_nio.c

@@ -134,10 +134,11 @@ void recv_notify_read(int sock, short event, void *arg)
 		pTask = free_queue_pop();
 		if (pTask == NULL)
 		{
-			logError("file: "__FILE__", line: %d, " \
-				"malloc task buff failed, you should " \
-				"increase the parameter: max_connections", \
-				__LINE__);
+			logError("file: "__FILE__", line: %d, "
+				"malloc task buff fail, you should "
+				"increase the parameter \"max_connections\" "
+                "in tracker.conf, or check your applications "
+                "for connection leaks", __LINE__);
 			close(incomesock);
 			continue;
 		}

tracker/tracker_service.c

@@ -588,14 +588,14 @@ static int tracker_deal_changelog_req(struct fast_task_info *pTask)
 			break;
 		}
 
-		memcpy(group_name, pTask->data + sizeof(TrackerHeader), \
+		memcpy(group_name, pTask->data + sizeof(TrackerHeader),
 			FDFS_GROUP_NAME_MAX_LEN);
 		*(group_name + FDFS_GROUP_NAME_MAX_LEN) = '\0';
 		pGroup = tracker_mem_get_group(group_name);
 		if (pGroup == NULL)
 		{
-			logError("file: "__FILE__", line: %d, " \
-				"client ip: %s, invalid group_name: %s", \
+			logError("file: "__FILE__", line: %d, "
+				"client ip: %s, group_name: %s not exist",
 				__LINE__, pTask->client_ip, group_name);
 			result = ENOENT;
 			break;