今天一早DB就过来说，一直在工作的rsync服务没有将中转的数据文件定时上传至服务器上，叫我看下原因。
经检查，原来是做了crontab的rsync无法工作了，找出了故障，紧接着便是解决。
1. 先来确定是否是网络的原因，首先是telnet
[[email protected] ~]$ telnet 10.123.1.66 873
Trying 10.123.1.66...
Connected to 10.123.1.66.
Escape character is ‘^]‘.
Connection closed by foreign host.
telnet出现了闪退的问题
其实到了这里我就该想到服务被关掉了才对，唉。。。
2.检查rsync服务器的iptables以及selinux
[[email protected] ssh]# iptables -L
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT icmp -- anywhere anywhere icmp destination-unreachable
ACCEPT icmp -- anywhere anywhere icmp time-exceeded
ACCEPT icmp -- anywhere anywhere icmp echo-reply
ACCEPT icmp -- anywhere anywhere icmp echo-request
ACCEPT tcp -- 10.123.0.0/16 anywhere tcp dpt:ssh
ACCEPT tcp -- anywhere anywhere tcp dpt:webcache
ACCEPT tcp -- anywhere anywhere tcp dpt:rsync
ACCEPT tcp -- anywhere anywhere tcp dpt:pcsync-https
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
Chain FORWARD (policy DROP)
target prot opt source destination
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
[[email protected] ssh]# getenforce
Disabled
iptables以及selinux均正常
3. rsync检测
[[email protected] ~]$ rsync -avz /translog/elcotable/DBM-721_elcas_order_20170304.del [email protected]:/home/elpayment
ssh: connect to host 10.123.1.66 port 22: Connection timed out
rsync: connection unexpectedly closed (0 bytes received so far) [sender]
rsync error: unexplained error (code 255) at io.c(600) [sender=3.0.6]
仍出现错误
4.检查rsync相关的配置以及检查rsync的日志
[[email protected] ssh]# tail -100f /var/log/rsyncd.log
2017/03/03 18:00:00 [8942] connect from UNKNOWN (192.168.1.8)
2017/03/03 18:00:00 [8942] rsync to guiyangKF/ from [email protected] (192.168.1.8)
2017/03/03 18:00:00 [8942] receiving file list
2017/03/03 18:00:00 [8942] sent 76 bytes received 134 bytes total size 0
2017/03/03 18:35:30 [11286] rsync error: received SIGINT, SIGTERM, or SIGHUP (code 20) at rsync.c(542) [receiver=3.0.6]
2017/03/06 11:03:05 [18972] rsyncd version 3.0.6 starting, listening on port 873
2017/03/06 11:11:57 [19043] rsync: failed to create pid file /var/run/rsyncd.pid: File exists (17)
2017/03/06 11:11:57 [19043] rsync error: error in file IO (code 11) at clientserver.c(1015) [receiver=3.0.6]
2017/03/06 11:12:08 [19046] rsyncd version 3.0.6 starting, listening on port 873
[[email protected] ssh]# tail -100f /var/log/messages
Mar 6 11:09:45 epsapp1 rsyncd[19022]: rsync: unable to open configuration file "/etc/rsyncd.conf": No such file or directory (2)
Mar 6 11:09:45 epsapp1 rsyncd[19022]: rsync error: syntax or usage error (code 1) at clientserver.c(953) [receiver=3.0.6]
Mar 6 11:09:45 epsapp1 xinetd[2854]: EXIT: rsync status=1 pid=19022 duration=0(sec)
5.结论是：rsync没有正常启动
[[email protected] ssh]# ps -ef|grep rsync
root 19116 1 0 11:15 ? 00:00:00 rsync --daemon --config=/etc/rsyncd.conf
root 19224 18129 0 11:42 pts/1 00:00:00 grep rsync
启动后，rsync传输正常
[[email protected] ~]$ bash 1-66rsync.sh
sending incremental file list
DBM-721_elcas_order_20170306.del
sent 190816 bytes received 27 bytes 127228.67 bytes/sec
total size is 986828 speedup is 5.17
sending incremental file list
sent 71 bytes received 8 bytes 158.00 bytes/sec
total size is 30448786 speedup is 385427.67