FastDFS配置说明(中英文)(2)

# is this config file disabled

# false for enabled

# true for disabled

disabled=false

#用于说明这个配置文件是否可用,false为可用。

# the name of the group this storage server belongs to

group_name=group1

#指定此storage server所在的组。

# bind an address of this host

# empty for bind all addresses of this host

bind_addr=

#是否绑定ip

#bind_addr=后面即为绑定的ip地址,常用于一台服务器有多个ip地址,希望其中的一个ip地址提供服务。不设置时,绑定所有的地址。一般情况下保持默认的不设置即可。

# 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

# bind_addr通常是针对server的。当指定bind_addr时,本参数才有效。

# 本storage server作为client连接其他服务器(如tracker server、其他storage server),是否绑定bind_addr。

# the storage server port

port=23000

#storage server服务端口号

# connect timeout in seconds

# default value is 30s

connect_timeout=30

#网络连接超时时间,以秒为单位。针对socket套接字函数connect

# network timeout in seconds

# default value is 30s

network_timeout=60

#storage server 网络超时时间,以秒为单位。发送或接收数据时,如果在超时时间后还不能发送或接收数据,则本次网络通信失败。

# heart beat interval in seconds

heart_beat_interval=30

# 心跳间隔时间,单位为秒 (这里是指主动向tracker server 发送心跳)。

# disk usage report interval in seconds

stat_report_interval=60

# storage server向tracker server报告磁盘剩余空间的时间间隔,单位为秒。

# the base path to store data and log files

base_path=/home/chenfeic/fdfs

# base_path 目录地址,根目录必须存在,子目录会自动生成 

# max concurrent connections the server supported

# default value is 256

# more max_connections means more memory will be used

max_connections=256

#系统提供服务时的最大连接数

# the buff size to recv / send data

# this parameter must more than 8KB

# default value is 64KB

# since V2.00

buff_size = 256KB

#设置队列结点的buffer大小。工作队列消耗的内存大小 = buff_size * max_connections

# 设置得大一些,系统整体性能会有所提升。

# 消耗的内存请不要超过系统物理内存大小。另外,对于32位系统,请注意使用到的内存不要超过3GB。

# work thread count, should <= max_connections

# work thread deal network io

# default value is 4

# since V2.00

work_threads=4

#工作线程数,通常设置为CPU数。此值不能超过max_connections,默认是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

#磁盘IO读写是否分离,缺省是分离的。

# 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

# 针对单个存储路径的读线程数,缺省值为1。

# 读写分离时,系统中的读线程数 = disk_reader_threads * store_path_count

# 读写混合时,系统中的读写线程数 = (disk_reader_threads + disk_writer_threads) * store_path_count

# 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

# 针对单个存储路径的写线程数,缺省值为1。

# 读写分离时,系统中的写线程数 = disk_writer_threads * store_path_count

# 读写混合时,系统中的读写线程数 = (disk_reader_threads + disk_writer_threads) * store_path_count

# when no entry to sync, try read binlog again after X milliseconds

# must > 0, default value is 200ms

sync_wait_msec=50

# 同步文件时,如果从binlog中没有读到要同步的文件,休眠N毫秒后重新读取。0表示不休眠,立即再次尝试读取。

# 出于CPU消耗考虑,不建议设置为0。如何希望同步尽可能快一些,可以将本参数设置得小一些,比如设置为10ms

# after sync a file, usleep milliseconds

# 0 for sync successively (never call usleep)

sync_interval=0

# 同步上一个文件后,再同步下一个文件的时间间隔,单位为毫秒,0表示不休眠,直接同步下一个文件。 

# 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

# 同步开始时间

# 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

#同步结束时间

# 上面二个一起解释。允许系统同步的时间段 (默认是全天) 。

# write to the mark file after sync N files

# default value is 500

write_mark_file_freq=500

# 同步完N个文件后,把storage的mark文件同步到磁盘

# 注:如果mark文件内容没有变化,则不会同步

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

store_path_count=1

# 存放文件时storage server支持多个路径(例如磁盘)。这里配置存放文件的基路径数目,通常只配一个目录。

# store_path#, based 0, if store_path0 not exists, it's value is base_path

# the paths must be exist

store_path0=/home/chenfeic/fdfs

#store_path1=/home/chenfeic/fdfs1

# 逐一配置store_path_count个路径,索引号基于0。注意配置方法后面有0,1,2 .....,需要配置0到store_path_count - 1。

# 如果不配置base_path0,那边它就和base_path对应的路径一样。

# 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

#FDFS存储文件时,采用了两级目录。这里配置存放文件的目录个数  

# 如果本参数只为N(如:256),那么storage server在初次运行时,会自动创建 N * N 个存放文件的子目录。

# tracker_server can ocur more than once, and tracker_server format is

#  "host:port", host can be hostname or ip address

tracker_server=192.168.209.121:22122

# tracker_server 的列表(注意要写上端口号)

# 有多个tracker server时,每个tracker server写一行

#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

#日志级别

#unix group name to run this program,

#not set (empty) means run by the group of current user

run_by_group=

# 操作系统运行FDFS的用户 (不填 就是当前用户,哪个启动进程就是哪个)

#unix username to run this program,

#not set (empty) means run by current user

run_by_user=

# 操作系统运行FDFS的用户组 (不填 就是当前用户组,哪个启动进程就是哪个)

# 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=*

# 允许连接本storage server的IP地址列表

# 可以配置多行,每行都会起作用

# 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

#  文件在data目录下分散存储策略。

# 0: 轮流存放,在一个目录下存储设置的文件数后(参数file_distribute_rotate_count中设置文件数),使用下一个目录进行存储。

# 1: 随机存储,根据文件名对应的hash code来分散存储。

# 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

# 当上面的参数file_distribute_path_mode配置为0(轮流存放方式)时,本参数有效。

# 当一个目录下的文件存放的文件数达到本参数值时,后续上传的文件存储到下一个目录中。

# 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

# 当写入大文件时,每写入N个字节,调用一次系统函数fsync将内容强行同步到硬盘。0表示从不调用fsync 

# sync log buff to disk every interval seconds

# must > 0, default value is 10 seconds

sync_log_buff_interval=10

# 同步或刷新日志信息到硬盘的时间间隔,以秒为单位

# 注意:storage server 的日志信息不是时时写硬盘的,而是先写内存。

# sync binlog buff / cache to disk every interval seconds

# default value is 60 seconds

sync_binlog_buff_interval=10

# 同步binglog(更新操作日志)到硬盘的时间间隔,单位为秒

# 本参数会影响新上传文件同步延迟时间

# sync storage stat info to disk every interval seconds

# default value is 300 seconds

sync_stat_file_interval=300

# 把storage的stat文件同步到磁盘的时间间隔,以秒为单位。

# 注:如果stat文件内容没有变化,不会进行同步

# thread stack size, should >= 512KB

# default value is 512KB

thread_stack_size=512KB

# 线程栈的大小。FDFS server端采用了线程方式。

# 线程栈越大,一个线程占用的系统资源就越多。

# 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

#  本storage server作为源服务器,上传文件的优先级,可以为负数。值越小,优先级越高。这里就和 tracker.conf 中store_server= 2时的配置相对应了 

# 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=

#设置网卡别名

# 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

# 是否检测上传文件已经存在。如果已经存在,则不存在文件内容,建立一个符号链接以节省磁盘空间。 

# 这个应用要配合FastDHT 使用,所以打开前要先安装FastDHT 

# 1或yes 是检测,0或no 是不检测

# 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

# 检查文件是否存在时,文件内容的签名方式:

## hash: 4个hash code

## md5:MD5

# namespace for storing file indexes (key-value pairs)

# this item must be set when check_file_duplicate is true / on

key_namespace=FastDFS

# 当check_file_duplicate设定为1 或 yes时 (true/on也是可以的) , 在FastDHT中的命名空间。

# set keep_alive to 1 to enable persistent connection with FastDHT servers

# default value is 0 (short connection)

keep_alive=0

# 与FastDHT servers 的连接方式 (是否为持久连接) ,默认是0(短连接方式)。可以考虑使用长连接,这要看FastDHT server的连接数是否够用。

# 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

# 可以通过 #include filename 方式来加载 FastDHT servers  的配置,装上FastDHT就知道该如何配置啦。

# 同样要求 check_file_duplicate=1 时才有用,不然系统会忽略

# fdht_servers.conf 记载的是 FastDHT servers 列表 

# if log to access log

# default value is false

# since V4.00

use_access_log = false

# 是否将文件操作记录到access log

# if rotate the access log every day

# default value is false

# since V4.00

rotate_access_log = false

# 是否定期轮转access log,目前仅支持一天轮转一次

# 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

# access log定期轮转的时间点,只有当rotate_access_log设置为true时有效

# if rotate the error log every day

# default value is false

# since V4.02

rotate_error_log = false

# 是否定期轮转error log,目前仅支持一天轮转一次 (建议设置为true,否则会导致日志文件只有一个,时间长了就会很大,不方便查看)

# 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

# error log定期轮转的时间点,只有当rotate_error_log设置为true时有效

# 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

#  access log按文件大小轮转

# 设置为0表示不按文件大小轮转,否则当access log达到该大小,就会轮转到新文件中

# 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

# error log按文件大小轮转

# 设置为0表示不按文件大小轮转,否则当error log达到该大小,就会轮转到新文件中。

# if skip the invalid record when sync file

# default value is false

# since V4.02

file_sync_skip_invalid_record=false

# 文件同步的时候,是否忽略无效的binlog记录。

# if use connection pool

# default value is false

# since V4.05

use_connection_pool = false

#是否使用连接池

# 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

#连接最大等待时间,以秒为单位。

# 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=

# storage server上web server域名,通常仅针对单独部署的web server。这样URL中就可以通过域名方式来访问storage server上的文件了,

# 这个参数为空就是IP地址的方式。

# the port of the web server on this storage server

http.server_port=8888

#storage server上web server端口号

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