Rsync 故障排查整理
?Rsync服务常见问题汇总讲解：============================================================================================== 1 客户端的错误现象：No route to host?rsync服务端开启的iptables防火墙 ?? [[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup ?? rsync: failed to connect to 172.16.1.41: No route to host (113) ?? rsync error: error in socket IO (code 10) at clientserver.c(124) [sender=3.0.6] ?? 异常问题解决： ?? 关闭rsync服务端的防火墙服务（iptables） ?? [[email?protected] mnt]# /etc/init.d/iptables stop ?? iptables: Setting chains to policy ACCEPT: filter????????? [? OK? ] ?? iptables: Flushing firewall rules:???????????????????????? [? OK? ] ?? iptables: Unloading modules:??????????????????????? ???????[? OK? ] ?? [[email?protected] mnt]# /etc/init.d/iptables status ?? iptables: Firewall is not running. ?============================================================================================== 2 ERROR: The remote path must start with a module name not a /?rsync客户端执行rsync命令错误： ?? 客户端的错误现象：?? ?? [[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::/backup ?? ERROR: The remote path must start with a module name not a / ?? rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6] ?? 异常问题解决： ?? rsync命令语法理解错误，::/backup是错误的语法，应该为::backup(rsync模块) ============================================================================================== 3 @ERROR: auth failed on module backup3. @ERROR: auth failed on module oldboy ?? 客户端的错误现象： ?? [[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup Password: @ERROR: auth failed on module backup rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6] ?? 异常问题解决： ?? 1.?密码输入错误，用户名错误? ? ? ?#这里的密码是你设置的rsync的密码，千万别输错了！！ ?? 2. secrets file = /etc/rsync.password指定的密码文件和实际密码文件名称不一致 ?? 3. /etc/rsync.password文件权限不是600 ?? 4. rsync_backup:123456密码配置文件后面注意不要有空格 ?? 5. rsync客户端密码文件中只输入密码信息即可，不要输入虚拟认证用户名称 ============================================================================================== 4 @ERROR: Unknown module ‘backup‘4. Unknown module ‘backup‘?? [[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup @ERROR: Unknown module ‘backup‘ rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6] ?? 异常问题解决： ?? 1、 /etc/rsyncd.conf配置文件模块名称书写错误 ? ?2、配置文件中网段限制不对 ============================================================================================== 5 ?Permission denied[[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup Password: sending incremental file list hosts rsync: mkstemp ".hosts.5z3AOA" (in backup) failed: Permission denied (13) ? sent 196 bytes? received 27 bytes? 63.71 bytes/sec total size is 349? speedup is 1.57 rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6]?? ?? 异常问题解决： ?? 1. 共享目录的属主和属组不正确，不是rsync ?? 2. 共享目录的权限不正确，不是755 ============================================================================================== 6 chdir failed???[[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup Password: @ERROR: chdir failed rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6] ??? 异常问题解决： ??? 1. 备份存储目录没有建立 ??? 2. 建立的备份存储目录和配置文件定义不一致 ??? [[email?protected] backup]# /etc/init.d/xinetd restart shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory Stopping xinetd:???????? ??????????????????????????????????[? OK? ] Starting xinetd: shell-init: error retrieving current directory: getcwd: cannot access parent directories: No such file or directory ?????????????????????????????????????????????????????????? [? OK? ] ??? 说明：如果没有备份存储目录，xinetd服务都不能正确启动 ============================================================================================== 7 ?invalid uid rsync[[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup Password: @ERROR: invalid uid rsync rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6] ??? 异常问题解决： ??? rsync服务对应rsync虚拟用户不存在了 ============================================================================================== 8 客户端已经配置了密码文件，但免秘钥登录方式，依旧需要输入密码?? password file must not be other-accessible [[email?protected] tmp]# rsync -avz /etc/hosts [email?protected]::backup --password-file=/etc/rsync.password password file must not be other-accessible continuing without password file Password: sending incremental file list sent 26 bytes? received 8 bytes? 5.23 bytes/sec total size is 349? speedup is 10.26 ??? 异常问题解决： ??? rsync客户端的秘钥文件也必须是600权限 ============================================================================================== 9 ?rsync客户端连接慢问题错误日志输出 2017/03/08 20:14:43 [3422] params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors 2017/03/08 20:14:43 [3422] name lookup failed for 172.16.1.31: Name or service not known 2017/03/08 20:14:43 [3422] connect from UNKNOWN (172.16.1.31) 2017/03/08 20:14:43 [3422] rsync to backup/ from [email?protected] (172.16.1.31) 2017/03/08 20:14:43 [3422] receiving file list 2017/03/08 20:14:43 [3422] sent 76 bytes? received 83 bytes? total size 349 正确日志输出 2017/03/08 20:16:45 [3443] params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors 2017/03/08 20:16:45 [3443] connect from nfs02 (172.16.1.31) 2017/03/08 20:16:45 [3443] rsync to backup/ from [email?protected] (172.16.1.31) 2017/03/08 20:16:45 [3443] receiving file list 2017/03/08 20:16:45 [3443] sent 76 bytes? received 83 bytes? total size 349 ??? 异常问题解决： ??? 查看日志进行分析 ============================================================================================== 10 rsync服务没有正确启动Connection refused (111)?[[email?protected] ~]#? rsync -avz /etc/hosts [email?protected]::backup rsync: failed to connect to 172.16.1.41: Connection refused (111) rsync error: error in socket IO (code 10) at clientserver.c(124) [sender=3.0.6] 解决 rsync服务没开启 [[email?protected] ~]# rsync --daemon [[email?protected] ~]# ss -lntup |grep rsync tcp??? LISTEN???? 0????? 5???????????????????? :::873????????????????? :::*??? ??users:(("rsync",1434,5)) tcp??? LISTEN???? 0????? 5????????????????????? *:873?????????????????? *:*????? users:(("rsync",4)) [[email?protected] ~]# rsync -avz /etc/hosts [email?protected]::backup Password: sending incremental file list hosts ?sent 196 bytes? received 27 bytes? 49.56 bytes/sec total size is 349? speedup is 1.57 ?============================================================================================== 11 port 22: Connection refused环境：本地服务器集群内部传输利用远程ssh 报错 利用（telnet 172.16.1.31 22） 排查服务监听状态后采取的解决方法 [[email?protected] ~]# rsync /etc/hosts 172.16.1.31:/tmp ssh: connect to host 172.16.1.31 port 22: Connection refused rsync: connection unexpectedly closed (0 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(600) [sender=3.0.6] 排错思路： [[email?protected] ~]# ping 172.16.1.31 PING 172.16.1.31 (172.16.1.31) 56(84) bytes of data. 64 bytes from 172.16.1.31: icmp_seq=1 ttl=64 time=0.628 ms 64 bytes from 172.16.1.31: icmp_seq=2 ttl=64 time=0.393 ms 64 bytes from 172.16.1.31: icmp_seq=3 ttl=64 time=1.06 ms 64 bytes from 172.16.1.31: icmp_seq=4 ttl=64 time=0.745 ms ? [[email?protected] ~]# traceroute 172.16.1.31 traceroute to 172.16.1.31 (172.16.1.31),30 hops max,60 byte packets ?1? nfs01 (172.16.1.31)? 0.597 ms? 0.189 ms? 0.965 ms /etc/init.d/iptables status iptables: Firewall is not running. [[email?protected] ~]# [[email?protected] ~]# netstat -lntup|grep 22 ? p??????? 0????? 0 10.0.0.31:22??????????????? 0.0.0.0:*?????????????????? LISTEN????? 1187/sshd?????????? 故障原因：无法连接 telnet 172.16.1.31 22 解决方法： [[email?protected]]# vim /etc/ssh/sshd_config #Port 22 #AddressFamily any #ListenAddress 10.0.0.31 改为 0.0.0.0 #ListenAddress :: 总结：内网传输通过SSH pro 22 表明22端口链接不上 ============================================================================================== 12 --passwd-file=/etc/rsync.passwd: unknown option 没有正确输入password文件名报错：--passwd-file=/etc/rsync.passwd: unknown option 错误案例 ?本地rsync.password 文件要保持一致缺少字母都会报错 echo "123456">>/etc/rsync.passwd [[email?protected] ~]# chmod 600 /etc/rsync.passwd [[email?protected] ~]# ll /etc/rsync.passwd -rw------- 1 root root 7 Mar? 9 13:47 /etc/rsync.passwd [[email?protected] ~]# rsync? -az -P /root/ [email?protected]::backup --passwd-file=/etc/rsync.passwd rsync: --passwd-file=/etc/rsync.passwd: unknown option rsync error: syntax or usage error (code 1) at main.c(1422) [client=3.0.6] ?正确做法： [[email?protected] ~]# echo "123456">>/etc/rsync.password [[email?protected] ~]# chmod 600 /etc/rsync.password [[email?protected] ~]# ll /etc/rsync.password -rw------- 1 root root 7 Mar? 9 13:49 /etc/rsync.password rsync? -az -P /server/files/secure-20161219? [email?protected]::backup --password-file=/etc/rsync.password sending incremental file list secure-20161219 ??? 51053780 100%?? 14.31MB/s??? 0:00:03 (xfer#1,to-check=0/1) rsync: mkstemp ".secure-20161219.lcnuWA" (in backup) failed: Permission denied (13) ? sent 2210982 bytes? received 27 bytes? 491335.33 bytes/sec total size is 51053780? speedup is 23.09 rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1039) [sender=3.0.6] ? [[email?protected] ~]# ls /backup/ 100.log????????? cc.txt?????? optimize-init_sys.sh anaconda-ks.cfg ????? 1）可能是服务没有开启 ????? 2）iptables SELinux ????? 3）本次遇见sshd传输受限 限制了传输的ip（安全） ============================================================================================== Rsync服务端排错思路m? 查看rsync服务配置文件路径是否正确 /etc/rsyncd.conf m? 查看配置文件例的host allow，host deny，允许的ip网段是否是允许客户端访问的ip网段 m? 查看配置文件中path参数里的路径是否存在，权限是否正确（正常应为配置文件中的UUID参数对应的属主和组） m? 查看rsync服务是否启动，端口是否存在 ps -ef? netstat -lntup m? 查看iptables防火墙和SELinux是否开启允许rsync服务通过，也可以关闭 m? 查看服务端rsync配置文件里的密码权限是否为600 密码文件格式是否正确，正确格式（用户名：密码）文件路径和配置文件里的secrect files 参数对应 m? 如果是推送数据，要查看，配置rsyncd.conf 文件中用户是否对模块下目录有可读的权限 ============================================================================================== 客户端排错思路m? 查看客户端rsync配置的密码文件是否为600的权限，密码文件格式是否正确，注意：仅需要有密码，并且和服务端的密码一致 m? 用telnet链接rsync服务器ip地址873端口，查看服务是否启动（可测试服务端防火墙是否阻挡telnet10.0.0.100 873） m? 客户端执行命令是 rsync -avzP [email?protected]::backup/test/test/ --password-file=/etc/rsync.password m? 此命令要记清楚尤其10.0.0.100::backup/test/处的双引号及随后的backup为模块名称 ============================================================================================== （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |