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CISCO WAE: wae-db dead but pid file exists

Introduction

If you found similar alarms, you can follow the guide and try to workaround the issue.

Problem

My customer found WAE REST API not workable, after checked, found wae-db have issue and report alarm, as follow.
And try to restart the WAE service and reload VM, not any useful.

[root@wae-auto wae-db]# service --status-all | grep wae
JAVA_EXECUTABLE or HSQLDB_JAR_PATH in '/etc/sysconfig/hsqldb' is set to a non-file.
wae-appenginecore is running OK, with PID=18606
wae-core is running OK, with PID=18163
wae-db dead but pid file exists  <<<<<<
wae-designapiserver is running OK, with PID=18847
wae-messaging is running OK, with PID=17874
wae-ni is running OK, with PID=17525
wae-osc is running OK, with PID=18369
wae-svcs-dashui is running OK, with PID=16652
wae-svcs-db is running OK, with PID=16277
wae-svcs-localrepo is not running
wae-svcs-log is running OK, with PID=16497
wae-svcs-logagent is running OK, with PID=16570
wae-svcs-metricsbkr is running OK, with PID=16716
wae-svcs-metricsd is running OK, with PID=16806
wae-svcs-mon is running OK, with PID=16138
wae-svcs-ui is running OK, with PID=16917
wae-system-server is running OK, with PID=16186
wae-web-server is running OK, with PID=17761

完整阅读

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How to resize LVM on Centos7/Ubuntu14.04 ?

After install Centos7, found disk size less, so I need resize the disk, you can use some tools to achieve the function, e.g: GParted or disk-genius. But if your Server disk format is LVM, you can easy to manual adjust that. I don’t know how to resize LVM by Gparted or disk-genius. For this article, will discuss how to adjust Centos7/Ubuntu14.04 by LVM. That should same action/command in Centos and Ubuntu.

If you want to check steps in Ubuntu, can check this attachment: lvm-resize-ubuntu14.04

1. Follow disk info

Check system contents by “sudo df -H”, check all disk status by “sudo fdisk -l”.

[root@frank ~]# df -H
Filesystem             Size  Used Avail Use% Mounted on
/dev/mapper/myvg-root  7.4G  7.4G  4.0M 100% /
devtmpfs               2.1G     0  2.1G   0% /dev
tmpfs                  2.1G  250k  2.1G   1% /dev/shm
tmpfs                  2.1G  9.5M  2.1G   1% /run
tmpfs                  2.1G     0  2.1G   0% /sys/fs/cgroup
/dev/mapper/myvg-home  731M  140M  591M  20% /home
/dev/sda1              521M  126M  396M  25% /boot
/dev/sr0               4.2G  4.2G     0 100% /run/media/root/CentOS 7 x86_64

2. Relationship for VG, PV and LV

完整阅读

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Blog顺利完成搬家之Bandwagonhost VPS

搬家之前的一些感受

在Hostgator上顺利用了6年了,我是3年一续费,每次续费都贵一大截,这是欺负老客户么?!太蛋疼了,而且动态ip,什么功能都没有,真是心灰意冷:
痛定思痛,弃用Hostgator!经同事推荐,Bandwagonhost 速度不错,便宜,稳定,而且还是VPS,自由度很大,最好的是每年续费不涨钱:-) 所以我买了他们比较便宜的那款,年费在29美金/year(CN2),比 Hostgator便宜,速度还快!
完整阅读

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Linux操作系统虚拟机(ESXi、VMware Workstation等)MAC地址变化后网卡无法启动-转

原始文章:
http://iknow.lenovo.com/detail/dc_148601.html

虚拟机MAC改变后,无法启动,并报错:“Device eth0 does not seem to be present”
出现该问题,是由于MAC地址变更后,操作系统仍然保留原来MAC地址作为eth0,并且将新的MAC地址识别为新的网卡导致的,可以删除文件“/etc/udev/rules.d/70-persistent-net.rule”中老MAC的信息,并把新MAC中的eth1改成eth0,通过start_udev重新加载udev,然后重启网卡恢复:“service network restart”

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Deploy Samba on OpenWRT

买了linksys wrt1200ac很久了,之前只是装了一个openwrt+默认配置,也没启用什么特别功能,感觉还算稳定。不过现在想听一些下载下来的广播,但又不想总是开着PC,所以突然想把这些音频挪到没用的u盘里,并挂在openwrt中,这样任何设备都可以访问了,还剩资源:)

定制OpenWRT

1. 安装中文包

root@OpenWrt:~# opkg update <<< 每次重启后需要缓存安装包列表,这样才能search到所有可用的包
root@OpenWrt:~# opkg list |grep zh-cn <<< 学会如何查找相应的包
root@OpenWrt:~# opkg install luci-i18n-base-zh-cn <<< 安装中文包

2.安装luci的主题

默认只有一种,在默认更新源里,加上默认的一共有4个,最后我还是选择了默认的 -_-

root@OpenWrt:~# opkg list |grep -i theme
luci - git-16.018.33482-3201903-1 - Standard OpenWrt set including full admin with ppp support and the default Bootstrap theme
luci-theme-bootstrap - git-16.018.33482-3201903-1 - Bootstrap Theme (default)
luci-theme-freifunk-bno - git-16.018.33482-3201903-1 - Freifunk Berlin Nordost Theme
luci-theme-freifunk-generic - git-16.018.33482-3201903-1 - Freifunk Generic Theme
luci-theme-openwrt - git-16.018.33482-3201903-1 - LuCI OpenWrt.org theme
 完整阅读
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