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トップコマンドに関する質問シェルスクリプトのトラブルシューティングについて質問です。

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2

追記: strace

2017/06/27 06:13

投稿

TaichiYanagiya
TaichiYanagiya

スコア12146

test CHANGED
@@ -36,4 +36,136 @@
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  ```
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+ ---
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+ **(2017/06/27 15:12) 追記**
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+
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+ 同じ環境ですが、問題なく実行できました。
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+ こちらでは再現できないので、何とも言えませんが、strace でトレースすると何か違いがあるかもしれません。
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+
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+
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+
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+ ```
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+
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+ [root]# strace -f -e open,execve -o /tmp/strace.log /usr/sbin/keepalived -D
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+
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+
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+
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+ (/bin/sh 実行箇所を抜粋)
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+
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+
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+
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+ 1522 open("/bin/sh", O_RDONLY) = 15
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+
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+ 1521 open("/etc/keepalived/keepalived.conf", O_RDONLY) = 10
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+
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+ 1521 open("/etc/resolv.conf", O_RDONLY|O_CLOEXEC) = 10
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+
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+ 1521 open("/etc/nsswitch.conf", O_RDONLY|O_CLOEXEC) = 10
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+
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+ 1521 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 10
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+
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+ 1521 open("/lib64/libnss_files.so.2", O_RDONLY|O_CLOEXEC) = 10
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+
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+ 1521 open("/etc/host.conf", O_RDONLY|O_CLOEXEC) = 10
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+
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+ 1521 open("/etc/hosts", O_RDONLY|O_CLOEXEC) = 10
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+
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+ 1523 open("/dev/null", O_RDWR) = 15
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+
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+ 1521 open("/dev/urandom", O_RDONLY|O_NOCTTY|O_NONBLOCK) = 10
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+
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+ 1524 execve("/bin/sh", ["sh", "-c", "/bin/sh -x /etc/keepalived/backu"...], [/* 24 vars */]) = 0
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+
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+ 1524 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1524 open("/lib64/libtinfo.so.5", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1524 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1524 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1524 open("/dev/tty", O_RDWR|O_NONBLOCK) = -1 ENXIO (No such device or address)
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+
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+ 1524 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1524 open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1524 open("/usr/lib64/gconv/gconv-modules.cache", O_RDONLY) = 3
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+ 1525 open("/tmp/backup.log", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 3
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+ 1525 execve("/bin/sh", ["/bin/sh", "-x", "/etc/keepalived/backup.sh"], [/* 23 vars */]) = 0
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+
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+ 1525 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1525 open("/lib64/libtinfo.so.5", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1525 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1525 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
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+ 1525 open("/dev/tty", O_RDWR|O_NONBLOCK) = -1 ENXIO (No such device or address)
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+
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+ 1525 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1525 open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1525 open("/usr/lib64/gconv/gconv-modules.cache", O_RDONLY) = 3
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+
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+ 1525 open("/etc/keepalived/backup.sh", O_RDONLY) = 3
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+
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+ 1526 execve("/usr/bin/systemctl", ["systemctl", "stop", "httpd.service"], [/* 23 vars */]) = 0
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+
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+ (中略)
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+
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+ 1522 open("/bin/sh", O_RDONLY) = 14
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+
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+ 1531 open("/dev/null", O_RDWR) = 14
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+
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+ 1532 execve("/bin/sh", ["sh", "-c", "/bin/sh -x /etc/keepalived/maste"...], [/* 24 vars */]) = 0
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+
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+ 1532 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1532 open("/lib64/libtinfo.so.5", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1532 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1532 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1532 open("/dev/tty", O_RDWR|O_NONBLOCK) = -1 ENXIO (No such device or address)
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+
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+ 1532 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1532 open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1532 open("/usr/lib64/gconv/gconv-modules.cache", O_RDONLY) = 3
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+
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+ 1533 open("/tmp/master.log", O_WRONLY|O_CREAT|O_TRUNC, 0666) = 3
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+
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+ 1533 execve("/bin/sh", ["/bin/sh", "-x", "/etc/keepalived/master.sh"], [/* 23 vars */]) = 0
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+
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+ 1533 open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1533 open("/lib64/libtinfo.so.5", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1533 open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1533 open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1533 open("/dev/tty", O_RDWR|O_NONBLOCK) = -1 ENXIO (No such device or address)
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+
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+ 1533 open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1533 open("/proc/meminfo", O_RDONLY|O_CLOEXEC) = 3
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+
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+ 1533 open("/usr/lib64/gconv/gconv-modules.cache", O_RDONLY) = 3
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+
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+ 1533 open("/etc/keepalived/master.sh", O_RDONLY) = 3
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+
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+ 1534 execve("/usr/bin/systemctl", ["systemctl", "start", "httpd.service"], [/* 23 vars */]) = 0
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+ ```
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+
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+

1

追記：実行権限

2017/06/27 06:12

投稿

TaichiYanagiya
TaichiYanagiya

スコア12146

test CHANGED
@@ -11,3 +11,29 @@
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  notify_backup "/bin/sh /etc/keepalived/backup.sh"
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  ```
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+
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+
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+
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+ ---
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+
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+ **(2017/06/27 14:16) 追記**
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+ 実行権限(x)が必要です。
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+ `chmod +x master.sh` または `chmod u+x master.sh`
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+
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+
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+ 実行権限の問題であれば、/bin/sh で実行できると思うのですが、ログを出してみるとどうでしょう。
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+
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+
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+ ```
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+ notify_master "/bin/sh -x /etc/keepalived/master.sh >/tmp/master.log 2>&1"
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+ notify_backup "/bin/sh -x /etc/keepalived/backup.sh >/tmp/backup.log 2>&1"
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+ ```
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+