（二）Configuration

素颜马尾好姑娘i 2022-01-31 16:13 331阅读 0赞

# Table of Contents #

*  tracker
    
     *  disabled
     *  bind\_addr
     *  port
     *  connect\_timeout
     *  network\_timeout
     *  base\_path
     *  max\_connections
     *  accept\_threads
     *  work\_threads
     *  store\_lookup
     *  store\_group
     *  store\_server
     *  store\_path
     *  download\_server
     *  reserved\_storage\_space
     *  log\_level
     *  run\_by\_group
     *  run\_by\_user
     *  allow\_hosts
     *  sync\_log\_buff\_interval
     *  check\_active\_interval
     *  thread\_stack\_size
     *  storage\_ip\_changed\_auto\_adjust
     *  storage\_sync\_file\_max\_delay
     *  storage\_sync\_file\_max\_time
     *  use\_trunk\_file
     *  slot\_min\_size
     *  slot\_max\_size
     *  trunk\_file\_size
     *  trunk\_create\_file\_advance
     *  trunk\_create\_file\_time\_base
     *  trunk\_create\_file\_interval
     *  trunk\_create\_file\_space\_threshold
     *  trunk\_init\_check\_occupying
     *  trunk\_init\_reload\_from\_binlog
     *  trunk\_compress\_binlog\_min\_interval
     *  use\_storage\_id
     *  storage\_ids\_filename
     *  id\_type\_in\_filename
     *  store\_slave\_file\_use\_link
     *  rotate\_error\_log
     *  error\_log\_rotate\_time
     *  rotate\_error\_log\_size
     *  log\_file\_keep\_days
     *  use\_connection\_pool
     *  connection\_pool\_max\_idle\_time
     *  http.server\_port
     *  http.check\_alive\_interval
     *  http.check\_alive\_type
     *  http.check\_alive\_uri
 *  storage
    
     *  disabled
     *  group\_name
     *  bind\_addr
     *  client\_bind
     *  port
     *  connect\_timeout
     *  network\_timeout
     *  heart\_beat\_interval
     *  stat\_report\_interval
     *  base\_path
     *  max\_connections
     *  buff\_size
     *  accept\_threads
     *  work\_threads
     *  disk\_rw\_separated
     *  disk\_reader\_threads
     *  disk\_writer\_threads
     *  sync\_wait\_msec
     *  sync\_interval
     *  sync\_start\_time
     *  sync\_end\_time
     *  write\_mark\_file\_freq
     *  store\_path\_count
     *  store\_path0
     *  subdir\_count\_per\_path
     *  tracker\_server
     *  log\_level
     *  run\_by\_group
     *  run\_by\_user
     *  allow\_hosts
     *  file\_distribute\_path\_mode
     *  file\_distribute\_rotate\_count
     *  fsync\_after\_written\_bytes
     *  sync\_log\_buff\_interval
     *  sync\_binlog\_buff\_interval
     *  sync\_stat\_file\_interval
     *  thread\_stack\_size
     *  upload\_priority
     *  if\_alias\_prefix
     *  check\_file\_duplicate
     *  file\_signature\_method
     *  key\_namespace
     *  keep\_alive
     *  use\_access\_log
     *  rotate\_access\_log
     *  access\_log\_rotate\_time
     *  rotate\_error\_log 
     *  error\_log\_rotate\_time
     *  rotate\_access\_log\_size
     *  rotate\_error\_log\_size
     *  log\_file\_keep\_days
     *  file\_sync\_skip\_invalid\_record
     *  use\_connection\_pool
     *  connection\_pool\_max\_idle\_time
     *  http.domain\_name
     *  http.server\_port
 *  client

## tracker ##

#### disabled ####

default: false

Is this config file disabled? false for enabled, true for disabled.

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#### bind\_addr ####

default: INADDR\_ANY

Bind an address of this host. Empty for bind all addresses of this host.

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#### port ####

default: 22000

The tracker server port.

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#### connect\_timeout ####

default: 30s

Connect timeout in seconds.

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#### network\_timeout ####

default: 30s

Network timeout in seconds.

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#### base\_path ####

default: –

The base path to store data and log files. (must have)

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#### max\_connections ####

default: 256

Max concurrent connections this server supported.

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#### accept\_threads ####

default: 1

Accept thread count.

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#### work\_threads ####

default: 4

Work thread count, should <= max\_connections.

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#### store\_lookup ####

default: 0

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

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#### store\_group ####

default: –

Which group to upload file. When store\_lookup set to 1, must set store\_group to the group name.

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#### store\_server ####

default: 0

Which storage server to upload file.

*  0: round robin
 *  1: the first server order by ip address
 *  2: the first server order by priority (the minimal)

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#### store\_path ####

default: 0

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

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#### download\_server ####

default: 0

Which storage server to download file.

*  0: round robin
 *  1: the source storage server which the current file uploaded to

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#### reserved\_storage\_space ####

default:

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%

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#### log\_level ####

default: info

Standard log level as syslog, case insensitive, value list:

*  emerg for emergency
 *  alert
 *  crit for critical
 *  error
 *  warn for warning
 *  notice
 *  info
 *  debug

Back to TOC

#### run\_by\_group ####

default: –

Unix group name to run this program, not set (empty) means run by the group of current user.

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#### run\_by\_user ####

default: –

Unix user name to run this program, not set (empty) means run by current user.

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#### allow\_hosts ####

default: \* (any addresses)

“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

Back to TOC

#### sync\_log\_buff\_interval ####

default: 10s

Sync log buff to disk every interval seconds.

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#### check\_active\_interval ####

default: 100s

Check storage server alive interval seconds.

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#### thread\_stack\_size ####

default: 64KB

Thread stack size, should >= 64KB.

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#### storage\_ip\_changed\_auto\_adjust ####

default: true

Auto adjust when the ip address of the storage server changed.

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#### storage\_sync\_file\_max\_delay ####

default: 86400s

Storage sync file max delay seconds.

since V2.00

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#### storage\_sync\_file\_max\_time ####

default: 300s

The max time of storage sync a file.

since V2.00

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#### use\_trunk\_file ####

default: false

If use a trunk file to store several small files.

since V3.00

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#### slot\_min\_size ####

default: 256 bytes

The min slot size, should <= 4KB.

since V3.00

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#### slot\_max\_size ####

default: 16MB

The max slot size, should > slot\_min\_size. Store the upload file to trunk file when it’s size <= this value.

since V3.00

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#### trunk\_file\_size ####

default: 64 MB

The trunk file size, should >= 4MB.

since V3.00

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#### trunk\_create\_file\_advance ####

default: false

If create trunk file advancely.

since V3.06

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#### trunk\_create\_file\_time\_base ####

default: 02:00

The time base to create trunk file. The time format: HH:MM.

since V3.06

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#### trunk\_create\_file\_interval ####

default: 38400s

The interval of create trunk file, unit: second.

since V3.06

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#### trunk\_create\_file\_space\_threshold ####

default: 0

The threshold to create trunk file when the free trunk file size less than the threshold, will create the trunk files.

since V3.06

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#### trunk\_init\_check\_occupying ####

default: false

If check trunk space occupying when loading trunk free spaces. The occupied spaces will be ignored.

NOTICE: set this parameter to true will slow the loading of trunk spaces when startup. you should set this parameter to true when neccessary.

since V3.09

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#### trunk\_init\_reload\_from\_binlog ####

default: false

If ignore storage\_trunk.dat, reload from trunk binlog. Set to true once for version upgrade when your version less than V3.10.

since V3.10

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#### trunk\_compress\_binlog\_min\_interval ####

default: 0

The min interval for compressing the trunk binlog file. FastDFS compress the trunk binlog when trunk init and trunk destroy recommand to set this parameter to 86400 (one day).

0: never compress

since V5.01

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#### use\_storage\_id ####

default: false

If use storage ID instead of IP address.

since V4.00

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#### storage\_ids\_filename ####

default: –

Specify storage ids filename, can use relative or absolute path.

since V4.00

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#### id\_type\_in\_filename ####

default: ip

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.

since V4.03

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#### store\_slave\_file\_use\_link ####

default: false

If store slave file use symbol link.

since V4.01

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#### rotate\_error\_log ####

default: false

If rotate the error log every day.

since V4.02

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#### error\_log\_rotate\_time ####

default: 00:00

Rotate error log time base, time format: HH:MM. Hour from 0 to 23, Minute from 0 to 59.

since V4.02

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#### rotate\_error\_log\_size ####

default: 0

Rotate error log when the log file exceeds this size. 0 means never rotates log file by log file size

since V4.02

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#### log\_file\_keep\_days ####

default: 0

Keep days of the log files. 0 means do not delete old log files

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#### use\_connection\_pool ####

default: false

If use connection pool

since V4.05

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#### connection\_pool\_max\_idle\_time ####

default: 3600s

Connections whose the idle time exceeds this time will be closed. (unit: second)

since V4.05

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#### http.server\_port ####

default: 8080

HTTP port on this tracker server.

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#### http.check\_alive\_interval ####

default: 30s

Check storage HTTP server alive interval seconds. <= 0 for never check.

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#### http.check\_alive\_type ####

default: tcp

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

Back to TOC

#### http.check\_alive\_uri ####

default: /

Check storage HTTP server alive uri/url.

NOTE: storage embed HTTP server support uri: /status.html

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## storage ##

#### disabled ####

default: false

Is this config file disabled? false for enabled, true for disabled.

Back to TOC

#### group\_name ####

default: –

The name of the group this storage server belongs to. (must have)

Back to TOC

#### bind\_addr ####

default: all addresses of this host

Bind an address of this host. Empty for bind all addresses of this host.

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#### client\_bind ####

default: true

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

Back to TOC

#### port ####

default: 23000

The storage server port.

Back to TOC

#### connect\_timeout ####

default: 30s

Connect timeout in seconds.

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#### network\_timeout ####

default: 30s

Network timeout in seconds.

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#### heart\_beat\_interval ####

default: 30s

Heart beat interval in seconds.

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#### stat\_report\_interval ####

default: 300s

Disk usage report interval in seconds.

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#### base\_path ####

default:

The base path to store data and log files. (must have)

Back to TOC

#### max\_connections ####

default: 256

Max concurrent connections the server supported. More max\_connections means more memory will be used.

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#### buff\_size ####

default: 64KB

The buff size to recv / send data, this parameter must more than 8KB.

since V2.00

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#### accept\_threads ####

default: 1

Accept thread count.

since V4.07

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#### work\_threads ####

default: 4

Work thread count (should <= max\_connections), work thread deal network io.

since V2.00

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#### disk\_rw\_separated ####

default: true

If disk read / write separated, false for mixed read and write, true for separated read and write.

since V2.00

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#### disk\_reader\_threads ####

default: 1

Disk reader thread count per store base path. For mixed read / write, this parameter can be 0.

since V2.00

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#### disk\_writer\_threads ####

default:

Disk writer thread count per store base path. For mixed read / write, this parameter can be 0.

since V2.00

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#### sync\_wait\_msec ####

default: 200ms

When no entry to sync, try read binlog again after X milliseconds. (must > 0)

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#### sync\_interval ####

default: 0

After sync a file, usleep milliseconds, 0 for sync successively (never call usleep).

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#### sync\_start\_time ####

default: 00:00

Storage sync start time of a day, time format: HH:MM (Hour from 0 to 23, Minute from 0 to 59).

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#### sync\_end\_time ####

default: 23:59

Storage sync end time of a day, time format: HH:MM (Hour from 0 to 23, Minute from 0 to 59).

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#### write\_mark\_file\_freq ####

default: 500

Write to the mark file after sync N files.

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#### store\_path\_count ####

default: 1

Path(disk or mount point) count

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#### store\_path0 ####

default:

store\_path\# (based 0), if store\_path0 not exists, it’s value is base\_path. (The paths must be exist)

Back to TOC

#### subdir\_count\_per\_path ####

default: 256

Subdir\_count \* subdir\_count directories will be auto created under each store\_path (disk), value can be 1 to 256, default value is 256.

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#### tracker\_server ####

default:

Tracker\_server can ocur more than once, and tracker\_server format is “host:port”, host can be hostname or ip address.

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#### log\_level ####

default:

Standard log level as syslog, case insensitive, value list:

*  emerg for emergency
 *  alert
 *  crit for critical
 *  error
 *  warn for warning
 *  notice
 *  info
 *  debug

Back to TOC

#### run\_by\_group ####

default:

Unix group name to run this program, not set (empty) means run by the group of current user.

Back to TOC

#### run\_by\_user ####

default:

Unix username to run this program, not set (empty) means run by current user.

Back to TOC

#### allow\_hosts ####

default: \*

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

Back to TOC

#### file\_distribute\_path\_mode ####

default: 0

The mode of the files distributed to the data path.

*  0: round robin (default)
 *  1: random, distributted by hash code

Back to TOC

#### file\_distribute\_rotate\_count ####

default: 100

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.

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#### fsync\_after\_written\_bytes ####

default: 0

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)

Back to TOC

#### sync\_log\_buff\_interval ####

default: 10s

Sync log buff to disk every interval seconds. (must > 0)

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#### sync\_binlog\_buff\_interval ####

default: 60s

Sync binlog buff / cache to disk every interval seconds.

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#### sync\_stat\_file\_interval ####

default: 300s

Sync storage stat info to disk every interval seconds.

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#### thread\_stack\_size ####

default: 512KB

Thread stack size, should >= 512KB.

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#### upload\_priority ####

default: 10

The priority as a source server for uploading file. The lower this value, the higher its uploading priority.

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#### if\_alias\_prefix ####

default:

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.

Back to TOC

#### check\_file\_duplicate ####

default: 0

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

Back to TOC

#### file\_signature\_method ####

default: hash

File signature method for check file duplicate,

*  hash: four 32 bits hash code
 *  md5: MD5 signature

since V4.01

Back to TOC

#### key\_namespace ####

default:

Namespace for storing file indexes (key-value pairs), this item must be set when check\_file\_duplicate is true / on.

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#### keep\_alive ####

default: 0

Set keep\_alive to 1 to enable persistent connection with FastDHT servers.

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#### use\_access\_log ####

default: false

If log to access log.

since V4.00

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#### rotate\_access\_log ####

default: false

If rotate the access log every day.

since V4.00

Back to TOC

#### access\_log\_rotate\_time ####

default: 00:00

Rotate access log time base, time format: HH:MM, Hour from 0 to 23, Minute from 0 to 59.

since V4.00

Back to TOC

#### rotate\_error\_log ####

default: false

If rotate the error log every day.

since V4.02

Back to TOC

#### error\_log\_rotate\_time ####

default: 00:00

Rotate error log time base, time format: HH:MM, Hour from 0 to 23, Minute from 0 to 59.

since V4.02

Back to TOC

#### rotate\_access\_log\_size ####

default: 0

Rotate access log when the log file exceeds this size, 0 means never rotates log file by log file size.

since V4.02

Back to TOC

#### rotate\_error\_log\_size ####

default: 0

Rotate error log when the log file exceeds this size, 0 means never rotates log file by log file size.

since V4.02

Back to TOC

#### log\_file\_keep\_days ####

default: 0

Keep days of the log files, 0 means do not delete old log files.

Back to TOC

#### file\_sync\_skip\_invalid\_record ####

default: false

If skip the invalid record when sync file.

since V4.02

Back to TOC

#### use\_connection\_pool ####

default: false

If use connection pool.

since V4.05

Back to TOC

#### connection\_pool\_max\_idle\_time ####

default: 3600s

Connections whose the idle time exceeds this time will be closed. (unit: second)

since V4.05

Back to TOC

#### http.domain\_name ####

default:

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.

Back to TOC

#### http.server\_port ####

default: 8888

The port of the web server on this storage server.

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## client ##

To be continue.

（二）Configuration

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