常見問題
3.1.1 rsync服務端排錯思路
查看rsync服務配置文件路徑是否正確，正確的默認路徑爲：/etc/rsyncd.conf
查看配置文件裏host allow，host deny，允許的IP網段是否是允許客戶端訪問的IP網段。
查看配置文件中path參數裏的路徑是否存在，權限是否正確（正常應爲配置文件中的UID參數對應的屬主和組）
查看rsync服務是否啓動。查看命令爲：ps -ef | grep rsync。端口是否存在netstat -plunt| grep 873
查看iptables防火牆和selinux是否開啓允許rsync服務通過，也可考慮關閉。
查看服務端rsync配置的密碼文件是否爲600的權限，密碼文件格式是否正確，正確格式用戶名:密碼，文件路徑和配置文件裏的secrect files參數對應。
如果是推送數據，要查看下，配置rsyncd.conf文件中用戶是否對模塊下目錄有可讀寫的權限。
3.1.2 rsync客戶端排錯思路
查看客戶端rsync配置的密碼文件是否爲600的權限，密碼文件格式shfou 正確，注意：僅需要有密碼，並且和服務端的mima 一直
用telnet鏈接rsync服務器IP地址873查看服務是否啓動（可測試服務端防火牆是否阻擋）
客戶端執行命令是rsync -avz /etc/hosts [email protected]::backup
此命令的細節要記清楚，尤其是雙冒號
3.2 No route to host問題
[root@nfs01 ~]# 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]
解決方案
服務端關閉防火牆
3.3 執行命令錯誤導致的報錯
[root@nfs01 ~]# 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]
解決：
rsync命令語法理解錯誤：/backup 必須是模塊，也就是不能“/”
3.4 @ERROR: auth failed on module backup
[root@nfs01 ~]# 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] [root@nfs01 ~]#
解決：
1.賬號rsync_backup或者密碼123456錯誤了。
2.指定的密碼文件和實際的名稱不一致。
secrets file = /etc/rsync.password
3.密碼文件的權限忘記改爲600
4.密碼文件多了一個空格。 vi時候用set list或者用cat -A
3.5 @ERROR: Unknown module 'backupa'
[root@nfs01 ~]# rsync -avz /etc/hosts [email protected]::backupa @ERROR: Unknown module 'backupa' rsync error: error starting client-server protocol (code 5) at main.c(1503) [sender=3.0.6] [root@nfs01 ~]#
解決：
文件的模塊和命令的模塊不匹配
3.6 權限問題
[root@nfs01 ~]# rsync -avz /etc/hosts [email protected]::backup Password: sending incremental file list rsync: ERROR: cannot stat destination "." (in backup): Permission denied (13) rsync error: errors selecting input/output files, dirs (code 3) at main.c(554) [receiver=3.0.6] rsync: connection unexpectedly closed (5 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(600) [sender=3.0.6]
解決：
共享目錄的屬主和屬組不正確，不是rsync
共享目錄的權限不正確。不是755
3.7 沒有創建對應的目錄
[root@nfs01 ~]# 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]
解決：
看配置文件的目錄和創建的目錄是否對應（相同）
或者目錄沒有創建
3.8 ID或者用戶組和用戶組不存在
[root@nfs01 ~]# 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]
解決：
創建rsync目錄
3.9 客戶端已經配置了密碼文件，但免密鑰登錄方式，依舊需要輸入密碼
[root@nfs01 ~]# 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 hosts rsync: mkstemp ".hosts.xWBidH" (in backup) failed: Permission denied (13) sent 196 bytes received 27 bytes 89.20 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]
解決：
客戶端的密碼文件權限不是600
chmod 600 /etc/rsync.password
3.10 傳輸慢
看日誌文件
2017/03/08 20:15:49 [25053] params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors 2017/03/08 20:15:49 [25053] name lookup failed for 172.16.1.31: Name or service not known 2017/03/08 20:15:49 [25053] connect from UNKNOWN (172.16.1.31) 2017/03/08 20:15:49 [25053] rsync to backup/ from rsync_backup@unknown (172.16.1.31) 2017/03/08 20:15:49 [25053] receiving file list 2017/03/08 20:15:49 [25053] rsync: mkstemp ".hosts.q63Fzr" (in backup) failed: Permission denied (13) 2017/03/08 20:15:49 [25053] sent 173 bytes received 253 bytes total size 349
解決：
配置本地域名解析/etc/hosts
172.16.1.31 nfs01
修改後
2017/03/08 20:17:46 [25056] params.c:Parameter() - Ignoring badly formed line in configuration file: ignore errors 2017/03/08 20:17:46 [25056] connect from nfs01 (172.16.1.31) 2017/03/08 20:17:46 [25056] rsync to backup/ from rsync_backup@nfs01 (172.16.1.31) 2017/03/08 20:17:46 [25056] receiving file list 2017/03/08 20:17:46 [25056] rsync: mkstemp ".hosts.CmOBRm" (in backup) failed: Permission denied (13) 2017/03/08 20:17:46 [25056] sent 173 bytes received 253 bytes total size 349
3.11 客戶端目錄權限644+rsync使用了avz參數
推送之後會給服務端的/backup目錄修改權限。使服務端權限變成644導致傳輸失敗。
sh [root@nfs01 ~]# echo 123456>/etc/rsync.password ash: 123456: Bad file descriptor
3.12
問題，服務沒啓動
[root@backup scripts]# rsync -avz /etc/hosts [email protected]::allbackup 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]
解決：
rsync --daemon
未知錯誤
[root@nfs01 scripts]# rsync -az -delete /data/ [email protected]::nfsbackup --password-file=/etc/rsync.password rsync: Failed to exec lete: No such file or directory (2) rsync error: error in IPC code (code 14) at pipe.c(84) [sender=3.0.6] 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]
解決：重新寫一下命令，就OK？