• 分布式文件存储FastDFS(七)FastDFS配置文件具体解释


    配置FastDFS时。改动配置文件是非常重要的一个步骤,理解配置文件里每一项的意义更加重要,所以我參考了大神的帖子,整理了配置文件的解释。原帖例如以下:http://bbs.chinaunix.net/thread-1941456-1-1.html,由于原帖中的版本号比較早。所以我针对现有的版本号进行了改动。原帖中没有client.conf的介绍。这里我给加上了。

    下文中带有凝视的配置文件下载:http://download.csdn.net/detail/xingjiarong/9445515

    一、tracker.conf

    # 这个配置文件是否无效,false表示有效
    # is this config file disabled
    # false for enabled
    # true for disabled
    disabled=false
    
    # 是否绑定IP
    # bind_addr= 后面为绑定的IP地址 (经常使用于服务器有多个IP但仅仅希望一个IP提供服务)。假设不填则表示全部的(一般不填就OK)
    # bind an address of this host
    # empty for bind all addresses of this host
    bind_addr=
    
    # 提供服务的端口
    # the tracker server port
    port=22122
    
    # 连接超时时间,针对socket套接字函数connect
    # connect timeout in seconds
    # default value is 30s
    connect_timeout=30
    
    # tracker server的网络超时,单位为秒。

    发送或接收数据时。假设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 # network timeout in seconds # default value is 30s network_timeout=60 # the base path to store data and log files base_path=/home/yuqing/fastdfs # base_path 文件夹地址(根文件夹必须存在,子文件夹会自己主动创建) # 附文件夹说明: # tracker server文件夹及文件结构: # ${base_path} # |__data # | |__storage_groups.dat:存储分组信息 # | |__storage_servers.dat:存储服务器列表 # |__logs # |__trackerd.log:tracker server日志文件 #数据文件storage_groups.dat和storage_servers.dat中的记录之间以换行符( )分隔,字段之间以西文逗号(,)分隔。 #storage_groups.dat中的字段依次为: # 1. group_name:组名 # 2. storage_port:storage server端口号 #storage_servers.dat中记录storage server相关信息,字段依次为: # 1. group_name:所属组名 # 2. ip_addr:ip地址 # 3. status:状态 # 4. sync_src_ip_addr:向该storage server同步已有数据文件的源服务器 # 5. sync_until_timestamp:同步已有数据文件的截至时间(UNIX时间戳) # 6. stat.total_upload_count:上传文件次数 # 7. stat.success_upload_count:成功上传文件次数 # 8. stat.total_set_meta_count:更改meta data次数 # 9. stat.success_set_meta_count:成功更改meta data次数 # 10. stat.total_delete_count:删除文件次数 # 11. stat.success_delete_count:成功删除文件次数 # 12. stat.total_download_count:下载文件次数 # 13. stat.success_download_count:成功下载文件次数 # 14. stat.total_get_meta_count:获取meta data次数 # 15. stat.success_get_meta_count:成功获取meta data次数 # 16. stat.last_source_update:近期一次源头更新时间(更新操作来自客户端) # 17. stat.last_sync_update:近期一次同步更新时间(更新操作来自其它storage server的同步) # 系统提供服务时的最大连接数。

    对于V1.x,因一个连接由一个线程服务,也就是工作线程数。 # 对于V2.x。最大连接数和工作线程数没有不论什么关系 # max concurrent connections this server supported max_connections=256 # work thread count, should <= max_connections # default value is 4 # since V2.00 # V2.0引入的这个參数,工作线程数,通常设置为CPU数 work_threads=4 # 上传组(卷) 的方式 0:轮询方式 1: 指定组 2: 平衡负载(选择最大剩余空间的组(卷)上传) # 这里假设在应用层指定了上传到一个固定组,那么这个參数被绕过 # the method of selecting group to upload files # 0: round robin # 1: specify group # 2: load balance, select the max free space group to upload file store_lookup=2 # 当上一个參数设定为1 时 (store_lookup=1,即指定组名时),必须设置本參数为系统中存在的一个组名。假设选择其它的上传方式。这个參数就没有效了 # which group to upload file # when store_lookup set to 1, must set store_group to the group name store_group=group2 # 选择哪个storage server 进行上传操作(一个文件被上传后,这个storage server就相当于这个文件的storage server源,会对同组的storage server推送这个文件达到同步效果) # 0: 轮询方式 # 1: 依据ip 地址进行排序选择第一个服务器(IP地址最小者) # 2: 依据优先级进行排序(上传优先级由storage server来设置,參数名为upload_priority) # which storage server to upload file # 0: round robin (default) # 1: the first server order by ip address # 2: the first server order by priority (the minimal) store_server=0 # 选择storage server 中的哪个文件夹进行上传。

    storage server能够有多个存放文件的base path(能够理解为多个磁盘)。

    # 0: 轮流方式。多个文件夹依次存放文件 # 2: 选择剩余空间最大的文件夹存放文件(注意:剩余磁盘空间是动态的。因此存储到的文件夹或磁盘可能也是变化的) # which path(means disk or mount point) of the storage server to upload file # 0: round robin # 2: load balance, select the max free space path to upload file store_path=0 # 选择哪个 storage server 作为下载服务器 # 0: 轮询方式,能够下载当前文件的任一storage server # 1: 哪个为源storage server 就用哪一个 (前面说过了这个storage server源 是怎样产生的) 就是之前上传到哪个storage server服务器就是哪个了 # which storage server to download file # 0: round robin (default) # 1: the source storage server which the current file uploaded to download_server=0 # storage server 上保留的空间,保证系统或其它应用需求空间。能够用绝对值或者百分比(V4開始支持百分比方式)。 #(指出 假设同组的服务器的硬盘大小一样,以最小的为准,也就是仅仅要同组中有一台服务器达到这个标准了,这个标准就生效,原因就是由于他们进行备份) # reserved storage space for system or other applications. # if the free(available) space of any stoarge server in # a group <= reserved_storage_space, # no file can be uploaded to this group. # bytes unit can be one of follows: ### G or g for gigabyte(GB) ### M or m for megabyte(MB) ### K or k for kilobyte(KB) ### no unit for byte(B) ### XX.XX% as ratio such as reserved_storage_space = 10% reserved_storage_space = 10% # 选择日志级别 #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 # 操作系统执行FastDFS的用户组 (不填 就是当前用户组,哪个启动进程就是哪个) #unix group name to run this program, #not set (empty) means run by the group of current user run_by_group= # 操作系统执行FastDFS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= # 能够连接到此 tracker server 的ip范围(对全部类型的连接都有影响,包含客户端,storage server) # 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=* # 同步或刷新日志信息到硬盘的时间间隔,单位为秒 # 注意:tracker server 的日志不是时时写硬盘的,而是先写内存 # sync log buff to disk every interval seconds # default value is 10 seconds sync_log_buff_interval = 10 # 检測 storage server 存活的时间隔,单位为秒。 # storage server定期向tracker server 发心跳。假设tracker server在一个check_active_interval内还没有收到storage server的一次心跳,那边将觉得该storage server已经下线。所以本參数值必须大于storage server配置的心跳时间间隔。通常配置为storage server心跳时间间隔的2倍或3倍 # check storage server alive interval seconds check_active_interval = 120 # 线程栈的大小。

    FastDFS server端採用了线程方式。

    tracker server线程栈不应小于64KB # 线程栈越大,一个线程占用的系统资源就越多。

    假设要启动很多其它的线程(V1.x相应的參数为max_connections, V2.0为work_threads)。能够适当减少本參数值 # thread stack size, should >= 64KB # default value is 64KB thread_stack_size = 64KB # 这个參数控制当storage server IP地址改变时,集群是否自己主动调整。

    注:仅仅有在storage server进程重新启动时才完毕自己主动调整 # auto adjust when the ip address of the storage server changed # default value is true storage_ip_changed_auto_adjust = true # V2.0引入的參数。存储服务器之间同步文件的最大延迟时间。缺省为1天。

    依据实际情况进行调整 # 注:本參数并不影响文件同步过程。本參数仅在下载文件时,推断文件是否已经被同步完毕的一个阀值(经验值) # storage sync file max delay seconds # default value is 86400 seconds (one day) # since V2.00 storage_sync_file_max_delay = 86400 # V2.0引入的參数。存储服务器同步一个文件须要消耗的最大时间。缺省为300s。即5分钟。

    # 注:本參数并不影响文件同步过程。本參数仅在下载文件时,作为推断当前文件是否被同步完毕的一个阀值(经验值) # the max time of storage sync a file # default value is 300 seconds # since V2.00 storage_sync_file_max_time = 300 # V3.0引入的參数。

    是否使用小文件合并存储特性,缺省是关闭的 # if use a trunk file to store several small files # default value is false # since V3.00 use_trunk_file = false # V3.0引入的參数。

    # trunk file分配的最小字节数。比方文件仅仅有16个字节。系统也会分配slot_min_size个字节 # the min slot size, should <= 4KB # default value is 256 bytes # since V3.00 slot_min_size = 256 # V3.0引入的參数。 # 仅仅有文件大小<=这个參数值的文件。才会合并存储。

    假设一个文件的大小大于这个參数值。将直接保存到一个文件里(即不採用合并存储方式)。 # the max slot size, should > slot_min_size # store the upload file to trunk file when it's size <= this value # default value is 16MB # since V3.00 slot_max_size = 16MB # V3.0引入的參数。 # 合并存储的trunk file大小,至少4MB,缺省值是64MB。

    不建议设置得过大 # the trunk file size, should >= 4MB # default value is 64MB # since V3.00 trunk_file_size = 64MB # 是否提前创建trunk file。仅仅有当这个參数为true,以下3个以trunk_create_file_打头的參数才有效 # if create trunk file advancely # default value is false # since V3.06 trunk_create_file_advance = false # 提前创建trunk file的起始时间点(基准时间)。02:00表示第一次创建的时间点是凌晨2点 # the time base to create trunk file # the time format: HH:MM # default value is 02:00 # since V3.06 trunk_create_file_time_base = 02:00 # 创建trunk file的时间间隔,单位为秒。假设每天仅仅提前创建一次,则设置为86400 # the interval of create trunk file, unit: second # default value is 38400 (one day) # since V3.06 trunk_create_file_interval = 86400 # 提前创建trunk file时,须要达到的空暇trunk大小 # 比方本參数为20G。而当前空暇trunk为4GB,那么仅仅须要创建16GB的trunk file就可以 # the threshold to create trunk file # when the free trunk file size less than the threshold, will create # the trunk files # default value is 0 # since V3.06 trunk_create_file_space_threshold = 20G # trunk初始化时,是否检查可用空间是否被占用 # if check trunk space occupying when loading trunk free spaces # the occupied spaces will be ignored # default value is false # since V3.09 # NOTICE: set this parameter to true will slow the loading of trunk spaces # when startup. you should set this parameter to true when neccessary. trunk_init_check_occupying = false # 是否无条件从trunk binlog中载入trunk可用空间信息 # FastDFS缺省是从快照文件storage_trunk.dat中载入trunk可用空间。 # 该文件的第一行记录的是trunk binlog的offset,然后从binlog的offset開始载入 # if ignore storage_trunk.dat, reload from trunk binlog # default value is false # since V3.10 # set to true once for version upgrade when your version less than V3.10 trunk_init_reload_from_binlog = false # 是否使用server ID作为storage server标识 # if use storage ID instead of IP address # default value is false # since V4.00 use_storage_id = false # use_storage_id 设置为true,才须要设置本參数 # 在文件里设置组名、server ID和相应的IP地址。參见源代码文件夹下的配置演示样例:conf/storage_ids.conf # specify storage ids filename, can use relative or absolute path # since V4.00 storage_ids_filename = storage_ids.conf #文件名称中的id类型,有ip和id两种,仅仅有当use_storage_id设置为true时该參数才有效 # id type of the storage server in the filename, values are: ## ip: the ip address of the storage server ## id: the server id of the storage server # this paramter is valid only when use_storage_id set to true # default value is ip # since V4.03 id_type_in_filename = ip # 存储从文件是否採用symbol link(符号链接)方式 # 假设设置为true。一个从文件将占用两个文件:原始文件及指向它的符号链接 # if store slave file use symbol link # default value is false # since V4.01 store_slave_file_use_link = false # 是否定期轮转error log。眼下仅支持一天轮转一次 # if rotate the error log every day # default value is false # since V4.02 rotate_error_log = false # error log定期轮转的时间点,仅仅有当rotate_error_log设置为true时有效 # 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按大小轮转 # 设置为0表示不按文件大小轮转。否则当error log达到该大小。就会轮转到新文件里 # 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 # 是否使用连接池 # if use connection pool # default value is false # since V4.05 use_connection_pool = false # 假设一个连接的空暇时间超过这个值将会被自己主动关闭 # 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 # 用于提供http服务的端口 # HTTP port on this tracker server http.server_port=8080 # 检查http server是否还在工作的时间间隔。假设该值小于0则永远不检查 # check storage HTTP server alive interval seconds # <= 0 for never check # default value is 30 http.check_alive_interval=30 # 检查http server是否存活的类型,有tcp和http两种 # tcp方式仅仅有http端口被连接 # http方式检查必须返回状态值200 # check storage HTTP server alive type, values are: # tcp : connect to the storge server with HTTP port only, # do not request and get response # http: storage check alive url must return http status 200 # default value is tcp http.check_alive_type=tcp # check storage HTTP server alive uri/url # NOTE: storage embed HTTP server support uri: /status.html http.check_alive_uri=/status.html

    二、storage.conf

    # 这个配置文件是否无效,false表示有效
    # is this config file disabled
    # false for enabled
    # true for disabled
    disabled=false
    
    # 指定 此 storage server 所在组(卷)
    # the name of the group this storage server belongs to
    group_name=group1
    
    # 是否绑定IP
    # bind_addr= 后面为绑定的IP地址 (经常使用于服务器有多个IP但仅仅希望一个IP提供服务)。

    假设不填则表示全部的(一般不填就OK) # bind an address of this host # empty for bind all addresses of this host bind_addr= # bind_addr一般是针对server的。

    当指定bind_addr时。本參数才有效。

    # 本storage server作为client连接其它服务器(如tracker server、其它storage server)。是否绑定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 # storage server服务端口 # the storage server port port=23000 # 连接超时时间,针对socket套接字函数connect # connect timeout in seconds # default value is 30s connect_timeout=30 # storage server 网络超时时间,单位为秒。发送或接收数据时,假设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。

    # network timeout in seconds # default value is 30s network_timeout=60 # 心跳间隔时间。单位为秒 (这里是指主动向tracker server 发送心跳) # heart beat interval in seconds heart_beat_interval=30 # storage server向tracker server报告磁盘剩余空间的时间间隔,单位为秒 # disk usage report interval in seconds stat_report_interval=60 # base_path 文件夹地址,根文件夹必须存在 子文件夹会自己主动生成 (注 :这里不是上传的文件存放的地址,之前是的,在某个版本号后更改了) # the base path to store data and log files base_path=/home/yuqing/fastdfs # 系统提供服务时的最大连接数 # max concurrent connections the server supported # default value is 256 # more max_connections means more memory will be used max_connections=256 # V2.0引入本參数。

    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,系统总体性能会有所提升。 # 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 # the buff size to recv / send data # this parameter must more than 8KB # default value is 64KB # since V2.00 buff_size = 256KB # 工作线程的数量。工作线程用于处理网络IO,应当小于max_connections的值 # work thread count, should <= max_connections # work thread deal network io # default value is 4 # since V2.00 work_threads=4 # V2.0引入本參数。

    磁盘IO读写是否分离。缺省是分离的 # 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 # V2.0引入本參数。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 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 # V2.0引入本參数。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 # 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 # 同步文件时,假设从binlog中没有读到要同步的文件。休眠N毫秒后又一次读取。0表示不休眠,马上再次尝试读取。 # 出于CPU消耗考虑,不建议设置为0。怎样希望同步尽可能快一些,能够将本參数设置得小一些,比方设置为10ms # when no entry to sync, try read binlog again after X milliseconds # must > 0, default value is 200ms sync_wait_msec=50 # 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。

    # after sync a file, usleep milliseconds # 0 for sync successively (never call usleep) sync_interval=0 # 以下二个一起解释。同意系统同步的时间段 (默认是全天) 。一般用于避免高峰同步产生一些问题而设定,相信sa都会明确 # 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 # 同步完N个文件后,把storage的mark文件同步到磁盘 # 注:假设mark文件内容没有变化,则不会同步 # write to the mark file after sync N files # default value is 500 write_mark_file_freq=500 # 存放文件时storage server支持多个路径(比如磁盘)。这里配置存放文件的基路径数目。通常仅仅配一个文件夹。 # path(disk or mount point) count, default value is 1 store_path_count=1 # 逐一配置store_path个路径,索引號基于0。注意配置方法后面有0,1,2 ......,须要配置0到store_path - 1。

    # 假设不配置base_path0,那边它就和base_path相应的路径一样。

    # 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 # FastDFS存储文件时,採用了两级文件夹。

    这里配置存放文件的文件夹个数 (系统的存储机制,大家看看文件存储的文件夹就知道了) # 假设本參数仅仅为N(如:256),那么storage server在初次执行时。会自己主动创建 N * N 个存放文件的子文件夹。 # 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 的列表 要写端口的哦 (再次提醒是主动连接tracker_server ) # 有多个tracker server时,每一个tracker server写一行 # 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 # 日志级别 #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 # 操作系统执行FastDFS的用户组 (不填 就是当前用户组,哪个启动进程就是哪个) #unix group name to run this program, #not set (empty) means run by the group of current user run_by_group= # 操作系统执行FastDFS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= # 同意连接本storage server的IP地址列表 (不包含自带HTTP服务的全部连接) # 能够配置多行,每行都会起作用 # 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=* # 文件在data文件夹下分散存储策略。 # 0: 轮流存放。在一个文件夹下存储设置的文件数后(參数file_distribute_rotate_count中设置文件数),使用下一个文件夹进行存储。 # 1: 随机存储,依据文件名称相应的hash code来分散存储。

    # 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 # 当上面的參数file_distribute_path_mode配置为0(轮流存放方式)时,本參数有效。 # 当一个文件夹下的文件存放的文件数达到本參数值时,兴许上传的文件存储到下一个文件夹中。 # 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 # 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 # 同步或刷新日志信息到硬盘的时间间隔,单位为秒 # 注意:storage server 的日志信息不是时时写硬盘的。而是先写内存。 # sync log buff to disk every interval seconds # must > 0, default value is 10 seconds sync_log_buff_interval=10 # 同步binglog(更新操作日志)到硬盘的时间间隔。单位为秒 # 本參数会影响新上传文件同步延迟时间 # sync binlog buff / cache to disk every interval seconds # default value is 60 seconds sync_binlog_buff_interval=10 # 把storage的stat文件同步到磁盘的时间间隔,单位为秒。

    # 注:假设stat文件内容没有变化,不会进行同步 # sync storage stat info to disk every interval seconds # default value is 300 seconds sync_stat_file_interval=300 # 线程栈的大小。

    FastDFS server端採用了线程方式。

    # 对于V1.x,storage server线程栈不应小于512KB;对于V2.0。线程栈大于等于128KB就可以。

    # 线程栈越大,一个线程占用的系统资源就越多。

    # 对于V1.x,假设要启动很多其它的线程(max_connections),能够适当减少本參数值。 # thread stack size, should >= 512KB # default value is 512KB thread_stack_size=512KB # 本storage server作为源服务器,上传文件的优先级,能够为负数。值越小。优先级越高。这里就和 tracker.conf 中store_server= 2时的配置相相应了 # 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 # 网卡别名前缀,就像Linux中的eth,能够使用ifconfig -a命令来查看 # 多个别名之间使用逗号分隔。假设不设置这个值表示自己主动的被系统类型设置 # 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= # 是否检測上传文件已经存在。假设已经存在,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 是检測,0或no 是不检測 # 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 # 文件去重时,文件内容的签名方式: # hash: 4个hash code # md5:MD5 # 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 # 当上个參数设定为1 或 yes时 (true/on也是能够的) 。 在FastDHT中的命名空间 # namespace for storing file indexes (key-value pairs) # this item must be set when check_file_duplicate is true / on key_namespace=FastDFS # 与FastDHT servers 的连接方式 (是否为持久连接) 。默认是0(短连接方式)。能够考虑使用长连接,这要看FastDHT server的连接数是否够用。 # set keep_alive to 1 to enable persistent connection with FastDHT servers # default value is 0 (short connection) keep_alive=0 # 以下是关于FastDHT servers 的设定 须要对FastDHT servers 有所了解,这里仅仅说字面意思了 # 能够通过 #include filename 方式来载入 FastDHT servers 的配置。装上FastDHT就知道该怎样配置啦。 # 相同要求 check_file_duplicate=1 时才实用。不然系统会忽略 # fdht_servers.conf 记载的是 FastDHT servers 列表 # 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 # 是否将文件操作记录到access log # if log to access log # default value is false # since V4.00 use_access_log = false # 是否定期轮转access log。眼下仅支持一天轮转一次 # if rotate the access log every day # default value is false # since V4.00 rotate_access_log = false # access log定期轮转的时间点,仅仅有当rotate_access_log设置为true时有效 # 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 # 是否定期轮转error log。眼下仅支持一天轮转一次 # if rotate the error log every day # default value is false # since V4.02 rotate_error_log = false # error log定期轮转的时间点。仅仅有当rotate_error_log设置为true时有效 # 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 # 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。就会轮转到新文件里 # 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 # 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,就会轮转到新文件里 # 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 # 文件同步的时候,是否忽略无效的binlog记录 # if skip the invalid record when sync file # default value is false # since V4.02 file_sync_skip_invalid_record=false # 是否使用连接池 # if use connection pool # default value is false # since V4.05 use_connection_pool = false # 假设一个连接的空暇时间超过这个值将会被自己主动关闭 # 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 # storage server上web server域名。通常仅针对单独部署的web server。

    这样URL中就能够通过域名方式来訪问storage server上的文件了, # 这个參数为空就是IP地址的方式。 # 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= # web server的端口 # the port of the web server on this storage server http.server_port=8888

    三、client.conf

    # 连接超时时间,针对socket套接字函数connect
    # connect timeout in seconds
    # default value is 30s
    connect_timeout=30
    
    # client的网络超时,单位为秒。

    发送或接收数据时。假设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 # network timeout in seconds # default value is 30s network_timeout=60 # 存储日志的根文件夹 # the base path to store log files base_path=/home/yuqing/fastdfs # tracker_server 的列表 要写端口 # tracker_server can ocur more than once, and tracker_server format is # "host:port", host can be hostname or ip address tracker_server=192.168.0.197:22122 # 日志的级别 #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 # 是否使用连接池 # if use connection pool # default value is false # since V4.05 use_connection_pool = false # 假设一个连接的空暇时间超过这个值将会被自己主动关闭 # 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 # 是否从FastDFS的tracker server载入參数 # if load FastDFS parameters from tracker server # since V4.05 # default value is false load_fdfs_parameters_from_tracker=false 是否使用storage ID 取代IP,仅仅有当load_fdfs_parameters_from_tracker为false时才有效 # if use storage ID instead of IP address # same as tracker.conf # valid only when load_fdfs_parameters_from_tracker is false # default value is false # since V4.05 use_storage_id = false # 指定storage_ids的路径,能够使用绝对路径和相对路径,仅仅有当load_fdfs_parameters_from_tracker为false时才有效 # specify storage ids filename, can use relative or absolute path # same as tracker.conf # valid only when load_fdfs_parameters_from_tracker is false # since V4.05 storage_ids_filename = storage_ids.conf #tracker server的http端口 #HTTP settings http.tracker_server_port=8080 #use "#include" directive to include HTTP other settiongs ##include http.conf

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  • 原文地址:https://www.cnblogs.com/cxchanpin/p/7353059.html
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