fastdfs 挂载数据盘扩容的坑。。。

谁践踏了优雅 2022-06-04 10:19 210阅读 0赞

背景：文件服务器已经上线三个月，使用fastdfs做文件服务器的中间件，一台tracker服务器，两台storage互相备份（小公司你懂得，白手起家，资源有限，想怎么搞怎么搞），

从阿里云40G的存储快用的差不多了，是时候挂载一个数据盘进行扩容了。内心OS：扩容还不简单，挂载个硬盘，修改个storage配置文件不就行了，然而我就这样入坑了。

首先修改storage配置文件，vim  /etc/fdfs/storage.conf

修改如下两点

# path(disk or mount point) count, default value is 1 
    store_path_count=2   
    
    
    # store_path#, based 0, if store_path0 not exists, it's value is base_path
    # the paths must be exist
    store_path0=/home/ubuntu/fastdfs/storage/storage0
    store_path1=/mnt/data1

(1)store\_path\_count  文件路径数数：存储文件的硬盘数或挂载点数

(2)文件路径分别是什么

OK，重启storage

/usr/bin/fdfs_storaged /etc/fdfs/storage.conf restart

这个时候查看fdfs的运行情况

/usr/bin/fdfs_monitor /etc/fdfs/clint.conf

问题来了，

重启的这台storage，处于offline状态，另外一台正常active。。。

奔溃，分析日志找原因，

vim /home/ubuntu/fastdfs/tracker/logs/trackerd.log

![Image 1][]\[2017-12-11 15:20:15\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:16\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:17\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:18\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:19\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:20\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:21\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:22\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:23\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:24\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:25\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:26\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:27\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:28\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:29\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16  
\[2017-12-11 15:20:30\] ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16

报了一堆错：ERROR - file: tracker\_service.c, line: 3550, cmd=84, client ip: 106.15.137.142, package size 32 is not correct, expect length: 16

tracker报错了。。。

网上各种搜索，看源码，意思大概是数据包大小超了，但是如何解决，没有下文

各种尝试，最终试出来来了

两台storage的store\_path\_count 必须一致，吐血，想想也应该这样呀，不然存在M01的数据同步不到另外一台storage上

所以两台一起修改配置文件重启后，就OK了，

监控运行结果，两台storage均为active状态了

配合nginx使用需要修改mod\_fastdfs.conf,修改和storage.conf一致，即可，OK，大功告成！

**关注微信公众号每天学习一点程序员的职业经**

> > > > > > ![SouthEast][]

[Image 1]: 
[SouthEast]: /images/20220604/7fe125ea6f3743169edb420046441ff2.png