在moosefs中，mfscgi是一个python写的server程序，其中的数据是调用同样的python工具mfscli实现的。
每当用浏览器打开mfscgi的时候，它要把所有的表数据请求一遍，非常耗时，响应很慢。(就目前我所在的环境看，文件数和连接数小的情况下，mfscgi的响应速度主要和磁盘的大小相关)
为了及时得到信息，我们可以使用mfscli进行查询。输入：mfscli -h可以查看到帮助：
mfscli -h usage: /usr/bin/mfscli [-hpn28] [-H master_host] [-P master_port] [-f 0..3] -S(IN|IM|LI|IG|MU|IC|IL|MF|CS|MB|HD|EX|MS|SC|OF|AL|MO|QU|MC|CC) [-s separator] [-o order_id [-r]] [-m mode_id] [i id] [-a count] [-b chart_data_columns] [-c count] [-d chart_data_columns] /usr/bin/mfscli [-hpn28] [-H master_host] [-P master_port] [-f 0..3] -C(RC/ip/port|BW/ip/port|M[01]/ip/port|RS/sessionid) /usr/bin/mfscli -v common: -h : print this message and exit -v : print version number and exit -p : force plain text format on tty devices -s separator : field separator to use in plain text format on tty devices (forces -p) -2 : force 256-color terminal color codes -8 : force 8-color terminal color codes -H master_host : master address (default: mfsmaster) -P master_port : master client port (default: 9421) -n : do not resolve ip addresses (default when output device is not tty) -f frame charset number : set frame charset to be displayed as table frames in ttymode -f0 : use simple ascii frames '+','-','|' (default for non utf-8 encodings) -f1 : use utf-8 frames: ┏┳┓┣╋┫┗┻┛━┃╸╹╺╻ -f2 : use utf-8 frames: ┌┬┐├┼┤└┴┘─│╴╵╶╷ -f3 : use utf-8 frames: ╔╦╗╠╬╣╚╩╝═║ (default for utf-8 encodings) monitoring: -S data set : defines data set to be displayed -SIN : show full master info -SIM : show only masters states -SLI : show only licence info -SIG : show only general master (leader) info -SMU : show only master memory usage -SIC : show only chunks info (goal/copies matrices) -SIL : show only loop info (with messages) -SMF : show only missing chunks/files -SCS : show connected chunk servers -SMB : show connected metadata backup servers -SHD : show hdd data -SEX : show exports -SMS : show active mounts -SRS : show resources (storage classes,open files,acquired locks) -SSC : show storage classes -SOF : show only open files -SAL : show only acquired locks -SMO : show operation counters -SQU : show quota info -SMC : show master charts data -SCC : show chunkserver charts data -o order_id : sort data by column specified by 'order id' (depends on data set) -r : reverse order -m mode_id : show data specified by 'mode id' (depends on data set) -i id : sessionid for -SOF or inode for -SAL -a count : how many master chart entries should be shown -b chart_data_columns : define master chart columns -c count : how many chunkserver chart entries should be shown -d chart_data_columns : define chunkserver chart columns (prefix with '+' for raw data, prefix with 'ip:[port:]' for server choice) master charts columns: ucpu - User cpu usage scpu - System cpu usage delete,del - Number of chunk deletions replicate,rep,repl - Number of chunk replications statfs - Number of statfs operations getattr - Number of getattr operations setattr - Number of setattr operations lookup - Number of lookup operations mkdir - Number of mkdir operations rmdir - Number of rmdir operations symlink - Number of symlink operations readlink - Number of readlink operations mknod - Number of mknod operations unlink - Number of unlink operations rename - Number of rename operations link - Number of link operations readdir - Number of readdir operations open - Number of open operations read - Number of read operations write - Number of write operations memoryrss,memrss,rmem,mem - Resident memory usage prcvd - Received packets psent - Sent packets brcvd - Received bytes bsent - Sent bytes memoryvirt,memvirt,vmem - Virtual memory usage usedspace - RAW disk space usage totalspace - RAW disk space connected cpu - Cpu usage (total sys+user) chunkserver chart columns: ucpu - User cpu usage scpu - System cpu usage masterin - Data received from master masterout - Data sent to master csrepin - Data received by replicator csrepout - Data sent by replicator csservin - Data received by csserv csservout - Data sent by csserv hdrbytesr - Bytes read (headers) hdrbytesw - Bytes written (headers) hdrllopr - Low level reads (headers) hdrllopw - Low level writes (headers) databytesr - Bytes read (data) databytesw - Bytes written (data) datallopr - Low level reads (data) datallopw - Low level writes (data) hlopr - High level reads hlopw - High level writes rtime - Read time wtime - Write time repl - Replicate chunk ops create - Create chunk ops delete - Delete chunk ops version - Set version ops duplicate - Duplicate ops truncate - Truncate ops duptrunc - Duptrunc (duplicate+truncate) ops test - Test chunk ops load - Server load memoryrss,memrss,rmem,mem - Resident memory usage memoryvirt,memvirt,vmem - Virtual memory usage cpu - Cpu usage (total sys+user) commands: -C command : perform particular command -CRC/ip/port : remove given chunkserver from list of active chunkservers -CBW/ip/port : send given chunkserver back to work (from grace state) -CM1/ip/port : switch given chunkserver to maintenance mode -CM0/ip/port : switch given chunkserver to standard mode (from maintenance mode) -CRS/sessionid : remove given session
命令描述很清晰，我举几个例子：
1.查询mfsmaster信息
[root@mfsmaster ~]# mfscli -pn -SIM metadata servers: 192.168.0.1 3.0.91 - 1 318 002 578 625160192 all:0.5585463% sys:0.2398903% user:0.3186560% - - E23EDF286166DAED
2.查询mfsmaster最近的收发情况
[root@mfsmaster ~]# mfscli -SMC -b psent -b prcvd -b bsent -b brcvd -a 5 +----------------------------------------------------------------------------------+ | Master chart data | +------------------+--------------+------------------+------------+----------------+ | host/port -> | leader | leader | leader | leader | +------------------+--------------+------------------+------------+----------------+ | Time | Sent packets | Received packets | Sent bytes | Received bytes | +------------------+--------------+------------------+------------+----------------+ | 2017-07-06 09:56 | 1.000/s | 0.367/s | 12.133/s | 4.333/s | | 2017-07-06 09:55 | 1.133/s | 0.500/s | 40.667/s | 5.433/s | | 2017-07-06 09:54 | 1.000/s | 0.367/s | 12.133/s | 4.333/s | | 2017-07-06 09:53 | 1.000/s | 0.367/s | 12.133/s | 4.333/s | | 2017-07-06 09:52 | 1.000/s | 0.367/s | 12.133/s | 4.333/s | +------------------+--------------+------------------+------------+----------------+
3.查询chunkserver与mfsmaster之间交互数据的情况
mfscli -SCC -d 192.168.0.1:9432:masterin -d 192.168.0.1:9432:masterout -c 5 +--------------------------------------------------------------------+ | Chunkserver chart data | +------------------+---------------------------+---------------------+ | host/port -> | 192.168.0.1:9432 | 192.168.0.1:9432 | +------------------+---------------------------+---------------------+ | Time | Data received from master | Data sent to master | +------------------+---------------------------+---------------------+ | 2017-07-06 10:03 | 2.400/s | 3.283/s | | 2017-07-06 10:02 | 2.400/s | 3.283/s | | 2017-07-06 10:01 | 2.400/s | 3.283/s | | 2017-07-06 10:00 | 2.400/s | 3.283/s | | 2017-07-06 09:59 | 2.400/s | 3.283/s | +------------------+---------------------------+---------------------+
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