下载同一个文件，偶尔下载不成功，刷新后又好了

vincent0202

之前一直没问题的
这几天突然有这个问题
下载同一个文件，偶尔会下载不成功，刷新后又好了

测试发现只是有一个节点有这个问题

所以应该不是tracker的问题




storage并没有明显的错误日志


max_connections开始是默认的256也有问题，改成512还是有问题

storage配置文件
# is this config file disabled
# false for enabled
# true for disabled
disabled=false

# the name of the group this storage server belongs to
group_name=photos2

# bind an address of this host
# empty for bind all addresses of this host
#bind_addr=192.168.10.67
bind_addr=

# if bind an address of this host when connect to other servers
# (this storage server as a client)
# true for binding the address configed by above parameter: "bind_addr"
# false for binding any address of this host
client_bind=true

# the storage server port
port=23000

# connect timeout in seconds
# default value is 30s
connect_timeout=30

# network timeout in seconds
# default value is 30s
network_timeout=60

# heart beat interval in seconds
heart_beat_interval=30

# disk usage report interval in seconds
stat_report_interval=60

# the base path to store data and log files
#base_path=/home/yuqing/fastdfs
base_path=/var/fastdfs/data

# max concurrent connections the server supported
# default value is 256
# more max_connections means more memory will be used
max_connections=512

# the buff size to recv / send data
# this parameter must more than 8KB
# default value is 64KB
# since V2.00
buff_size = 256KB

# work thread count, should <= max_connections
# work thread deal network io
# default value is 4
# since V2.00
work_threads=4

# if disk read / write separated
##  false for mixed read and write
##  true for separated read and write
# default value is true
# since V2.00
disk_rw_separated = true

# disk reader thread count per store base path
# for mixed read / write, this parameter can be 0
# default value is 1
# since V2.00
disk_reader_threads = 1

# disk writer thread count per store base path
# for mixed read / write, this parameter can be 0
# default value is 1
# since V2.00
disk_writer_threads = 1

# when no entry to sync, try read binlog again after X milliseconds
# must > 0, default value is 200ms
sync_wait_msec=50

# after sync a file, usleep milliseconds
# 0 for sync successively (never call usleep)
sync_interval=0

# storage sync start time of a day, time format: Hour:Minute
# Hour from 0 to 23, Minute from 0 to 59
sync_start_time=00:00

# storage sync end time of a day, time format: Hour:Minute
# Hour from 0 to 23, Minute from 0 to 59
sync_end_time=23:59

# write to the mark file after sync N files
# default value is 500
write_mark_file_freq=500

# path(disk or mount point) count, default value is 1
store_path_count=1

# store_path#, based 0, if store_path0 not exists, it's value is base_path
# the paths must be exist
#store_path0=/home/yuqing/fastdfs
#store_path1=/home/yuqing/fastdfs2

# subdir_count  * subdir_count directories will be auto created under each
# store_path (disk), value can be 1 to 256, default value is 256
subdir_count_per_path=256

# tracker_server can ocur more than once, and tracker_server format is
#  "host:port", host can be hostname or ip address
#tracker_server=192.168.209.67:22122
tracker_server=192.168.10.112:22122

#standard log level as syslog, case insensitive, value list:
### emerg for emergency
### alert
### crit for critical
### error
### warn for warning
### notice
### info
### debug
log_level=info

#unix group name to run this program,
#not set (empty) means run by the group of current user
run_by_group=

#unix username to run this program,
#not set (empty) means run by current user
run_by_user=

# allow_hosts can ocur more than once, host can be hostname or ip address,
# "*" means match all ip addresses, can use range like this: 10.0.1.[1-15,20] or
# host[01-08,20-25].domain.com, for example:
# allow_hosts=10.0.1.[1-15,20]
# allow_hosts=host[01-08,20-25].domain.com
allow_hosts=*

# the mode of the files distributed to the data path
# 0: round robin(default)
# 1: random, distributted by hash code
file_distribute_path_mode=0

# valid when file_distribute_to_path is set to 0 (round robin),
# when the written file count reaches this number, then rotate to next path
# default value is 100
file_distribute_rotate_count=100

# call fsync to disk when write big file
# 0: never call fsync
# other: call fsync when written bytes >= this bytes
# default value is 0 (never call fsync)
fsync_after_written_bytes=0

# sync log buff to disk every interval seconds
# must > 0, default value is 10 seconds
sync_log_buff_interval=10

# sync binlog buff / cache to disk every interval seconds
# default value is 60 seconds
sync_binlog_buff_interval=10

# sync storage stat info to disk every interval seconds
# default value is 300 seconds
sync_stat_file_interval=300

# thread stack size, should >= 512KB
# default value is 512KB
thread_stack_size=512KB

# the priority as a source server for uploading file.
# the lower this value, the higher its uploading priority.
# default value is 10
upload_priority=10

# the NIC alias prefix, such as eth in Linux, you can see it by ifconfig -a
# multi aliases split by comma. empty value means auto set by OS type
# default values is empty
if_alias_prefix=

# if check file duplicate, when set to true, use FastDHT to store file indexes
# 1 or yes: need check
# 0 or no: do not check
# default value is 0
check_file_duplicate=0

# file signature method for check file duplicate
## hash: four 32 bits hash code
## md5: MD5 signature
# default value is hash
# since V4.01
file_signature_method=hash

# namespace for storing file indexes (key-value pairs)
# this item must be set when check_file_duplicate is true / on
key_namespace=FastDFS

# set keep_alive to 1 to enable persistent connection with FastDHT servers
# default value is 0 (short connection)
keep_alive=0

# you can use "#include filename" (not include double quotes) directive to
# load FastDHT server list, when the filename is a relative path such as
# pure filename, the base path is the base path of current/this config file.
# must set FastDHT server list when check_file_duplicate is true / on
# please see INSTALL of FastDHT for detail
##include /home/yuqing/fastdht/conf/fdht_servers.conf

# if log to access log
# default value is false
# since V4.00
use_access_log = false

# if rotate the access log every day
# default value is false
# since V4.00
rotate_access_log = false

# rotate access log time base, time format: Hour:Minute
# Hour from 0 to 23, Minute from 0 to 59
# default value is 00:00
# since V4.00
access_log_rotate_time=00:00

# if rotate the error log every day
# default value is false
# since V4.02
rotate_error_log = false

# rotate error log time base, time format: Hour:Minute
# Hour from 0 to 23, Minute from 0 to 59
# default value is 00:00
# since V4.02
error_log_rotate_time=00:00

# rotate access log when the log file exceeds this size
# 0 means never rotates log file by log file size
# default value is 0
# since V4.02
rotate_access_log_size = 0

# rotate error log when the log file exceeds this size
# 0 means never rotates log file by log file size
# default value is 0
# since V4.02
rotate_error_log_size = 0

# if skip the invalid record when sync file
# default value is false
# since V4.02
file_sync_skip_invalid_record=false

# if use connection pool
# default value is false
# since V4.05
use_connection_pool = false

# connections whose the idle time exceeds this time will be closed
# unit: second
# default value is 3600
# since V4.05
connection_pool_max_idle_time = 3600

# use the ip address of this storage server if domain_name is empty,
# else this domain name will ocur in the url redirected by the tracker server
http.domain_name=

# the port of the web server on this storage server
http.server_port=8888





不断刷新，有时能显示图片，有时候不行


问题出在这个函数，取不到fastdfs storage文件
function getFile($group,$filename){
               
                $file = fastdfs_storage_download_file_to_buff($group,$filename);
               
                fastdfs_tracker_close_all_connections(); // 关闭连接
               
                ob_clean();
                if($file){
                        $mime = _mime_content_type($filename);
                        header("Content-type: ".$mime);
                        header("Content-Length: ".strlen($file));
                        header("filesize: ".strlen($file));
                        die($file);
                }else{
                        header("HTTP/1.1 404 Not Found");
                        die('faild');
                }
        }

vincent0202

libevent 版本

http://cloud.github.com/download ... .0.14-stable.tar.gz

vincent0202

问题就出在这里

fastdfs_get_file_info()
和
fastdfs_storage_download_file_to_buff()

这2个函数有时候失败，有时候成功


$file = fastdfs_storage_download_file_to_buff($group,$filename);
               
                fastdfs_tracker_close_all_connections(); // 关闭连接
               
                ob_clean();
                if($file){
                        $mime = _mime_content_type($filename);
                        header("Content-type: ".$mime);
                        header("Content-Length: ".strlen($file));
                        header("filesize: ".strlen($file));
                        echo $file;
                }else{
                        echo fastdfs_get_last_error_no();
                        echo '<br />';
                        echo fastdfs_get_last_error_info();
                        echo '<br />';
                        var_dump($file);
                        echo '<br />';
                       
                }


失败的时候打印的错误

0
Success
bool(false)

vincent0202

问题了解决了，是67的网卡有问题，重启67网卡后就好了