开机后，发现节点1的CPU使用率很高：
[root@lunar1 ~]# sar -u 1 10Linux 3.10.0-327.el7.x86_64 (lunar1.oracle.com) 03/22/2016 _x86_64_ (2 CPU)06:16:57 PM CPU %user %nice %system %iowait %steal %idle06:16:58 PM all 0.55 0.00 78.14 0.00 0.00 21.3106:16:59 PM all 0.00 0.00 73.91 0.00 0.00 26.0906:17:00 PM all 0.52 0.00 81.68 0.00 0.00 17.8006:17:01 PM all 0.00 0.00 82.81 0.00 0.00 17.1906:17:02 PM all 0.00 0.00 84.13 0.00 0.00 15.8706:17:03 PM all 0.55 0.00 70.72 0.00 0.00 28.73^C06:17:03 PM all 0.00 0.00 57.14 0.00 0.00 42.86Average: all 0.26 0.00 77.88 0.00 0.00 21.86[root@lunar1 ~]# |
节点2的也比较高：
[root@lunar2 ~]# sar -u 1 10Linux 3.10.0-327.el7.x86_64 (lunar2.oracle.com) 03/22/2016 _x86_64_ (2 CPU)06:17:20 PM CPU %user %nice %system %iowait %steal %idle06:17:21 PM all 0.50 0.00 0.50 0.00 0.00 99.0006:17:22 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:17:23 PM all 55.44 0.00 6.74 0.00 0.00 37.8206:17:24 PM all 59.79 0.00 11.34 0.00 0.00 28.8706:17:25 PM all 38.38 0.00 28.11 0.54 0.00 32.9706:17:26 PM all 8.67 0.00 8.67 0.00 0.00 82.6506:17:27 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:17:28 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:17:29 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:17:30 PM all 0.50 0.00 1.00 0.00 0.00 98.51Average: all 15.90 0.00 5.43 0.05 0.00 78.62[root@lunar2 ~]# |
在节点1检查哪些进程使用CPU资源较多：
Tasks: 287 total, 4 running, 283 sleeping, 0 stopped, 0 zombie%Cpu(s): 0.4 us, 80.8 sy, 0.0 ni, 18.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 stKiB Mem : 3145636 total, 1630448 free, 1073504 used, 441684 buff/cacheKiB Swap: 4190204 total, 4190204 free, 0 used. 2000056 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3205 oracle 20 0 214120 1828 1328 R 79.1 0.1 3:40.27 /usr/bin/VBoxClient--clipboard 3208 root 20 0 222392 1844 1312 R 78.7 0.1 3:40.10 /usr/bin/VBoxClient--clipboard 3279 oracle 20 0 147044 1292 884 S 0.3 0.0 0:00.26 /usr/bin/VBoxClient--draganddrop 3850 grid 20 0 322112 6092 4604 S 0.3 0.2 0:00.04 /usr/libexec/goa-identity-service 7179 root 20 0 146308 2336 1520 R 0.3 0.1 0:00.02 top-c 1 root 20 0 189244 4316 2380 S 0.0 0.1 0:01.54 /usr/lib/systemd/systemd--switched-root --system --deserialize 22 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [kthreadd] 3 root 20 0 0 0 0 S 0.0 0.0 0:00.15 [ksoftirqd/0] 5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 [kworker/0:0H] 7 root rt 0 0 0 0 S 0.0 0.0 0:00.38 [migration/0] 8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [rcu_bh] |
检查果然vnc都自动开启：
[root@lunar1 ~]# systemctl status vncserver@:1.service● vncserver@:1.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:1.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2016-03-22 18:12:24 CST; 6min ago Process: 1420 ExecStartPre=/bin/sh-c /usr/bin/vncserver-kill:1 > /dev/null2>&1 || : (code=exited, status=0/SUCCESS) Main PID: 1832 (Xvnc) CGroup: /system.slice/system-vncserver.slice/vncserver@:1.service ‣ 1832 /usr/bin/Xvnc:1 -desktop lunar1.oracle.com:1 (root) -auth /root/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /root/.vnc/passwd-rfbport 5901 -fp catalogue:/etc/...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Started Remote desktop service (VNC).[root@lunar1 ~]# [root@lunar1 ~]# systemctl status vncserver@:2.service● vncserver@:2.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:2.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2016-03-22 18:12:24 CST; 6min ago Process: 1425 ExecStartPre=/bin/sh-c /usr/bin/vncserver-kill:2 > /dev/null2>&1 || : (code=exited, status=0/SUCCESS) Main PID: 1833 (Xvnc) CGroup: /system.slice/system-vncserver.slice/vncserver@:2.service ‣ 1833 /usr/bin/Xvnc:2 -desktop lunar1.oracle.com:2 (grid) -auth /home/grid/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /home/grid/.vnc/passwd-rfbport 5902 -fp catal...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Started Remote desktop service (VNC).[root@lunar1 ~]# [root@lunar1 ~]# systemctl status vncserver@:3.service● vncserver@:3.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:3.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2016-03-22 18:12:24 CST; 6min ago Process: 1423 ExecStartPre=/bin/sh-c /usr/bin/vncserver-kill:3 > /dev/null2>&1 || : (code=exited, status=0/SUCCESS) Main PID: 1828 (Xvnc) CGroup: /system.slice/system-vncserver.slice/vncserver@:3.service ‣ 1828 /usr/bin/Xvnc:3 -desktop lunar1.oracle.com:3 (oracle) -auth /home/oracle/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /home/oracle/.vnc/passwd-rfbport 5903 -fp...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Started Remote desktop service (VNC).[root@lunar1 ~]# |
停止vnc并设置开机不启动：
[root@lunar1 ~]# systemctl stop vncserver@:1.service[root@lunar1 ~]# systemctl stop vncserver@:2.service[root@lunar1 ~]# systemctl stop vncserver@:3.service[root@lunar1 ~]# systemctl disable vncserver@:1.serviceRemoved symlink/etc/systemd/system/multi-user.target.wants/vncserver@:1.service.[root@lunar1 ~]# systemctl disable vncserver@:2.serviceRemoved symlink/etc/systemd/system/multi-user.target.wants/vncserver@:2.service.[root@lunar1 ~]# systemctl disable vncserver@:3.serviceRemoved symlink/etc/systemd/system/multi-user.target.wants/vncserver@:3.service.[root@lunar1 ~]# systemctl status vncserver@:1.service● vncserver@:1.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:1.service; disabled; vendor preset: disabled) Active: inactive (dead)Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Started Remote desktop service (VNC).Mar 22 18:20:48 lunar1.oracle.com systemd[1]: Stopping Remote desktop service (VNC)...Mar 22 18:20:49 lunar1.oracle.com systemd[1]: Stopped Remote desktop service (VNC).[root@lunar1 ~]# systemctl status vncserver@:2.service● vncserver@:2.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:2.service; disabled; vendor preset: disabled) Active: inactive (dead)Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Started Remote desktop service (VNC).Mar 22 18:20:53 lunar1.oracle.com systemd[1]: Stopping Remote desktop service (VNC)...Mar 22 18:20:53 lunar1.oracle.com systemd[1]: Stopped Remote desktop service (VNC).[root@lunar1 ~]# systemctl status vncserver@:3.service● vncserver@:3.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:3.service; disabled; vendor preset: disabled) Active: inactive (dead)Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:24 lunar1.oracle.com systemd[1]: Started Remote desktop service (VNC).Mar 22 18:20:57 lunar1.oracle.com systemd[1]: Stopping Remote desktop service (VNC)...Mar 22 18:20:57 lunar1.oracle.com systemd[1]: Stopped Remote desktop service (VNC).[root@lunar1 ~]# |
优化效果非常明显，可以看到CPU基本空闲了，符合现在的情况（Oracle的CRS还没启动呢）：
[root@lunar1 ~]# sar -u 1 10Linux 3.10.0-327.el7.x86_64 (lunar1.oracle.com) 03/22/2016 _x86_64_ (2 CPU)06:21:47 PM CPU %user %nice %system %iowait %steal %idle06:21:48 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:21:49 PM all 0.00 0.00 0.50 0.00 0.00 99.5006:21:50 PM all 1.01 0.00 1.52 0.00 0.00 97.4706:21:51 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:21:53 PM all 0.50 0.00 0.50 0.00 0.00 99.0006:21:54 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:21:55 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:21:56 PM all 1.51 0.00 3.52 0.00 0.00 94.9706:21:57 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:21:58 PM all 0.00 0.00 0.00 0.00 0.00 100.00Average: all 0.30 0.00 0.60 0.00 0.00 99.10[root@lunar1 ~]# |
再来看看节点2：
Tasks: 284 total, 2 running, 282 sleeping, 0 stopped, 0 zombie%Cpu(s): 4.3 us, 0.7 sy, 0.0 ni, 95.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 stKiB Mem : 3145636 total, 1645972 free, 1070152 used, 429512 buff/cacheKiB Swap: 4190204 total, 4190204 free, 0 used. 2003876 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 3643 grid 20 0 1442740 154600 44292 S 3.3 4.9 0:06.48 /usr/bin/gnome-shell 3651 oracle 20 0 1593832 154216 44296 S 3.0 4.9 0:06.94 /usr/bin/gnome-shell 3520 root 20 0 1580060 154488 43804 S 2.7 4.9 0:06.18 /usr/bin/gnome-shell 12 root 20 0 0 0 0 S 0.3 0.0 0:00.30 [rcuos/0] 1023 root 20 0 1721880 153028 9952 S 0.3 4.9 0:09.38 /u01/app/12.1.0.2/grid/jdk/jre/bin/java-Xms128m -Xmx512m -classpath /u01/app/12.1.0.2/grid/tfa/lunar2/tfa_home/jlib/RATFA+ 1873 oracle 20 0 222688 24820 8192 S 0.3 0.8 0:00.22 /usr/bin/Xvnc:3 -desktop lunar2.oracle.com:3 (oracle) -auth /home/oracle/.Xauthority -geometry 1024x768 -rfbwait 30000 -r+ 3299 root 20 0 220832 1340 892 S 0.3 0.0 0:00.31 /usr/bin/VBoxClient--draganddrop 7208 root 20 0 146308 2316 1512 R 0.3 0.1 0:00.11 top-c 1 root 20 0 189236 4292 2380 S 0.0 0.1 0:01.56 /usr/lib/systemd/systemd--switched-root --system --deserialize 21 2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [kthreadd] 3 root 20 0 0 0 0 S 0.0 0.0 0:00.02 [ksoftirqd/0] 5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 [kworker/0:0H] 7 root rt 0 0 0 0 S 0.0 0.0 0:00.67 [migration/0] 8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [rcu_bh] 9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [rcuob/0] 10 root 20 0 0 0 0 S 0.0 0.0 0:00.00 [rcuob/1] 11 root 20 0 0 0 0 R 0.0 0.0 0:00.47 [rcu_sched] |
同样的方法，也停止vnc服务和vnc的开机自动启动：
[root@lunar2 ~]# systemctl status vncserver@:1.service● vncserver@:1.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:1.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2016-03-22 18:12:23 CST; 10min ago Process: 1470 ExecStartPre=/bin/sh-c /usr/bin/vncserver-kill:1 > /dev/null2>&1 || : (code=exited, status=0/SUCCESS) Main PID: 1872 (Xvnc) CGroup: /system.slice/system-vncserver.slice/vncserver@:1.service ‣ 1872 /usr/bin/Xvnc:1 -desktop lunar2.oracle.com:1 (root) -auth /root/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /root/.vnc/passwd-rfbport 5901 -fp catalogue:/etc/...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Started Remote desktop service (VNC).[root@lunar2 ~]# systemctl status vncserver@:2.service● vncserver@:2.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:2.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2016-03-22 18:12:23 CST; 10min ago Process: 1469 ExecStartPre=/bin/sh-c /usr/bin/vncserver-kill:2 > /dev/null2>&1 || : (code=exited, status=0/SUCCESS) Main PID: 1869 (Xvnc) CGroup: /system.slice/system-vncserver.slice/vncserver@:2.service ‣ 1869 /usr/bin/Xvnc:2 -desktop lunar2.oracle.com:2 (grid) -auth /home/grid/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /home/grid/.vnc/passwd-rfbport 5902 -fp catal...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Started Remote desktop service (VNC).[root@lunar2 ~]# systemctl status vncserver@:3.service● vncserver@:3.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:3.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2016-03-22 18:12:23 CST; 10min ago Process: 1474 ExecStartPre=/bin/sh-c /usr/bin/vncserver-kill:3 > /dev/null2>&1 || : (code=exited, status=0/SUCCESS) Main PID: 1873 (Xvnc) CGroup: /system.slice/system-vncserver.slice/vncserver@:3.service ‣ 1873 /usr/bin/Xvnc:3 -desktop lunar2.oracle.com:3 (oracle) -auth /home/oracle/.Xauthority -geometry 1024x768 -rfbwait 30000 -rfbauth /home/oracle/.vnc/passwd-rfbport 5903 -fp...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Started Remote desktop service (VNC).[root@lunar2 ~]# |
停止vnc服务和进制vnc开机自动启动：
[root@lunar2 ~]# systemctl disable vncserver@:1.servicesystemctl stop vncserver@:1.servicesystemctl status vncserver@:1.serviceRemoved symlink/etc/systemd/system/multi-user.target.wants/vncserver@:1.service.[root@lunar2 ~]# systemctl stop vncserver@:1.service[root@lunar2 ~]# systemctl status vncserver@:1.service● vncserver@:1.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:1.service; disabled; vendor preset: disabled) Active: inactive (dead)Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Started Remote desktop service (VNC).Mar 22 18:23:23 lunar2.oracle.com systemd[1]: Stopping Remote desktop service (VNC)...Mar 22 18:23:23 lunar2.oracle.com systemd[1]: Stopped Remote desktop service (VNC).[root@lunar2 ~]# systemctl disable vncserver@:2.servicesystemctl stop vncserver@:2.servicesystemctl status vncserver@:2.serviceRemoved symlink/etc/systemd/system/multi-user.target.wants/vncserver@:2.service.[root@lunar2 ~]# systemctl stop vncserver@:2.service[root@lunar2 ~]# systemctl status vncserver@:2.service● vncserver@:2.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:2.service; disabled; vendor preset: disabled) Active: inactive (dead)Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Started Remote desktop service (VNC).Mar 22 18:23:28 lunar2.oracle.com systemd[1]: Stopping Remote desktop service (VNC)...Mar 22 18:23:28 lunar2.oracle.com systemd[1]: Stopped Remote desktop service (VNC).[root@lunar2 ~]# [root@lunar2 ~]# systemctl disable vncserver@:3.servicesystemctl stop vncserver@:3.servicesystemctl status vncserver@:3.serviceRemoved symlink/etc/systemd/system/multi-user.target.wants/vncserver@:3.service.[root@lunar2 ~]# systemctl stop vncserver@:3.service[root@lunar2 ~]# systemctl status vncserver@:3.service● vncserver@:3.service - Remote desktop service (VNC) Loaded: loaded (/usr/lib/systemd/system/vncserver@:3.service; disabled; vendor preset: disabled) Active: inactive (dead)Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Starting Remote desktop service (VNC)...Mar 22 18:12:23 lunar2.oracle.com systemd[1]: Started Remote desktop service (VNC).Mar 22 18:23:32 lunar2.oracle.com systemd[1]: Stopping Remote desktop service (VNC)...Mar 22 18:23:32 lunar2.oracle.com systemd[1]: Stopped Remote desktop service (VNC).[root@lunar2 ~]# [root@lunar2 ~]# |
看一下节点2的优化效果：
[root@lunar2 ~]# sar -u 1 10Linux 3.10.0-327.el7.x86_64 (lunar2.oracle.com) 03/22/2016 _x86_64_ (2 CPU)06:24:01 PM CPU %user %nice %system %iowait %steal %idle06:24:02 PM all 0.51 0.00 0.51 0.00 0.00 98.9906:24:03 PM all 0.50 0.00 1.01 0.00 0.00 98.4906:24:04 PM all 0.00 0.00 0.50 0.00 0.00 99.5006:24:05 PM all 0.44 0.00 0.00 0.00 0.00 99.5606:24:06 PM all 0.00 0.00 0.50 0.00 0.00 99.5006:24:07 PM all 0.50 0.00 1.51 0.00 0.00 97.9906:24:08 PM all 0.50 0.00 0.50 0.00 0.00 99.0006:24:09 PM all 0.00 0.00 0.50 0.00 0.00 99.5006:24:10 PM all 0.00 0.00 0.00 0.00 0.00 100.0006:24:11 PM all 0.00 0.00 0.00 0.00 0.00 100.00Average: all 0.25 0.00 0.50 0.00 0.00 99.26[root@lunar2 ~]# |
