MFS排错

[root@Nginx_Master mfs]# /app/server/mfs/sbin/mfsmaster start
working directory: /app/server/mfs/var/mfs
lockfile created and locked
initializing mfsmaster modules ...
loading sessions ... ok
sessions file has been loaded
exports file has been loaded
mfstopology: incomplete definition in line: 7
mfstopology: incomplete definition in line: 7
mfstopology: incomplete definition in line: 22
mfstopology: incomplete definition in line: 22
mfstopology: incomplete definition in line: 28
mfstopology: incomplete definition in line: 28
topology file has been loaded
loading metadata ...
backup file is newer than current file - please check it manually - propably you should run metarestore
init: file system manager failed !!!
error occured during initialization - exiting

matser、metalogger、chunker、client端，服务器关机（init0）和重启（init6）时，程序都是正常关闭，无需修复。整个mfs体系中，直接断电只有master有可能无法启动 使用mfsmetarestore -a修复才能启动。

[root@Nginx_Master mfs]# /app/server/mfs/sbin/mfsmetarestore -a
loading objects (files,directories,etc.) ... ok
loading names ... ok
loading deletion timestamps ... ok
loading chunks data ... ok
checking filesystem consistency ... ok
connecting files and chunks ... ok
progress: current change: 0 (first:2514 - last:0 - 100% - ETA:finished)
store metadata into file: /app/server/mfs/var/mfs/metadata.mfs

[root@Nginx_Master mfs]# file metadata.mfs.empty
metadata.mfs.empty: ASCII text, with no line terminators
[root@Nginx_Master mfs]# file metadata.mfs
metadata.mfs: data

[root@Nginx_Master mfs]# /app/server/mfs/sbin/mfsmaster start
working directory: /app/server/mfs/var/mfs
lockfile created and locked
initializing mfsmaster modules ...
loading sessions ... ok
sessions file has been loaded
exports file has been loaded
mfstopology: incomplete definition in line: 7
mfstopology: incomplete definition in line: 7
mfstopology: incomplete definition in line: 22
mfstopology: incomplete definition in line: 22
mfstopology: incomplete definition in line: 28
mfstopology: incomplete definition in line: 28
topology file has been loaded
loading metadata ...
loading objects (files,directories,etc.) ... ok
loading names ... ok
loading deletion timestamps ... ok
loading chunks data ... ok
checking filesystem consistency ... ok
connecting files and chunks ... ok
all inodes: 8
directory inodes: 3
file inodes: 5
chunks: 11
metadata file has been loaded
stats file has been loaded
master <-> metaloggers module: listen on *:9419
master <-> chunkservers module: listen on *:9420
main master server module: listen on *:9421
mfsmaster daemon initialized properly

问题解决！！！

+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

[root@chunk37 mfs-1.6.27]# ./configure --prefix=/app/server/mfs --with-default-user=mfs --with-default-group=mfs
checking for FUSE... no
******************************** mfsmount disabled ********************************
* fuse library is too old or not installed - mfsmount needs version 2.6 or higher *
***********************************************************************************
checking for fuse_version in -lfuse... no
checking for zlibVersion in -lz... no
configure: error: zlib development library not found

[root@chunk37 mfs-1.6.27]# yum install fuse*  -y
[root@chunk37 mfs-1.6.27]#./configure --prefix=/app/server/mfs --with-default-user=mfs --with-default-group=mfs
checking for zlibVersion in -lz... no
configure: error: zlib development library not found
[root@chunk37 mfs-1.6.27]# yum search zlib-devel
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirrors.yun-idc.com
 * extras: mirrors.tuna.tsinghua.edu.cn
 * updates: mirrors.tuna.tsinghua.edu.cn
=========================== N/S Matched: zlib-devel ============================
zlib-devel.i686 : Header files and libraries for Zlib development
zlib-devel.x86_64 : Header files and libraries for Zlib development

  Name and summary matches only, use "search all" for everything.
[root@chunk37 mfs-1.6.27]# yum install zlib-devel -y
[root@chunk37 mfs-1.6.27]#./configure --prefix=/app/server/mfs --with-default-user=mfs --with-default-group=mfs
问题解决！

==========================================================================

root@web02 bin]# /app/server/mfs/bin/mfsmount /app/www -H 192.168.1.21
mfsmaster accepted connection with parameters: read-write,restricted_ip ; root mapped to root:root
fuse: device not found, try 'modprobe fuse' first
error in fuse_mount

#根据提示可以解决问题
[root@web02 bin]# modprobe fuse
[root@web02 bin]# /app/server/mfs/bin/mfsmount /app/www -H 192.168.1.21
mfsmaster accepted connection with parameters: read-write,restricted_ip ; root mapped to root:root