install es on Mac

[happypeter]

brew update && brew install elasticsearch

then I see

billie@bogon:~/apps/happycasts% brew install elasticsearch
==> Downloading https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-1.2.1.tar.gz
######################################################################## 100.0%
==> Caveats
Data:    /usr/local/var/elasticsearch/elasticsearch_billie/
Logs:    /usr/local/var/log/elasticsearch/elasticsearch_billie.log
Plugins: /usr/local/var/lib/elasticsearch/plugins/

ElasticSearch requires Java 7; you will need to install an appropriate JDK.

To have launchd start elasticsearch at login:
    ln -sfv /usr/local/opt/elasticsearch/*.plist ~/Library/LaunchAgents
Then to load elasticsearch now:
    launchctl load ~/Library/LaunchAgents/homebrew.mxcl.elasticsearch.plist
Or, if you don't want/need launchctl, you can just run:
    elasticsearch --config=/usr/local/opt/elasticsearch/config/elasticsearch.yml
==> Summary
🍺  /usr/local/Cellar/elasticsearch/1.2.1: 31 files, 21M, built in 43 seconds

[happypeter]

在 Mac 上装了 Java7 之后， chrome 就不能运行 Java 了，可能导致一些 applet 不能用（可能一些银行网站会受影响？）

Java 7 and Chrome on Mac OS X and Linux
Chrome does not support Java 7 on the Mac or Linux platforms.
A 64-bit browser (Safari or Firefox, for example) is required to run Java 7 on Mac OS X. 32-bit browsers such as Chrome do not support Java 7 on the Mac platform. Firefox is the recommended browser for Java on Linux.

不管他，实在不行用 safari，这些狗屎的落后技术。

[happypeter]

显然我需要安装 java7:

• 到 https://www.java.com/en/download/mac_download.jsp?locale=en 下载 jre-7u60-macosx-x64.dmg
• 一路 Next 就装好了，糊里糊涂的

打开 terminal，看起来不太对劲

billie@bogon:~% java -version
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)

重启了一下，还是一样，而且试了一下 chrome 用 boc.cn 也还可以用

但是用 safari 打开：https://www.java.com/en/download/help/mac_install.xml
点击上面的 test_applet 可以看到 “Java 7 installed" 的字样。

[happypeter]

运行

ln -sfv /usr/local/opt/elasticsearch/*.plist ~/Library/LaunchAgents
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.elasticsearch.plist

[happypeter]

启动应用，试图去使用搜素功能，报错：

(Connection refused - connect(2)):

terminal 里去运行 es 报错：

billie@bogon:~% elasticsearch
Exception in thread "main" java.lang.UnsupportedClassVersionError: org/elasticsearch/bootstrap/Elasticsearch : Unsupported major.minor version 51.0
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:637)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)

看来目前依然是 java6 (1.6 就是 6? YES)

billie@bogon:~% java -version
java version "1.6.0_65"

n% java -version
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
billie@bogon:/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin% ./java -version
java version "1.7.0_60"
Java(TM) SE Runtime Environment (build 1.7.0_60-b19)
Java HotSpot(TM) 64-Bit Server VM (build 24.60-b09, mixed mode)
billie@bogon:/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin%

终于在 system preference 下找到 java7 的安装位置了：http://java.com/en/download/faq/java_mac.xml#version，原来在 /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin

但是直接把这个 path 导出成 JAVA_HOME 依然是不灵的：

billie@bogon:~% export JAVA_HOME='/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin'
billie@bogon:~% cd $JAVA_HOME
billie@bogon:~JAVA_HOME% ./java -version
java version "1.7.0_60"
Java(TM) SE Runtime Environment (build 1.7.0_60-b19)
Java HotSpot(TM) 64-Bit Server VM (build 24.60-b09, mixed mode)
billie@bogon:~JAVA_HOME% java -version
Unable to locate an executable at "/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/bin/java" (-1)

[happypeter]

但是直接把这个 path 导出成 JAVA_HOME 依然是不灵的：

其实是可以的，上面 export 时，最后多了 bin/ 去掉就好了：

export JAVA_HOME='/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home'

➜  ~JAVA_HOME  java -version
java version "1.7.0_60"
Java(TM) SE Runtime Environment (build 1.7.0_60-b19)

这时命令行执行 $ elasticsearch 也跑起来了。

[happypeter]

现在再去执行搜索，报错

Elasticsearch::Transport::Transport::Errors::NotFound in Users#search
Showing /Users/Billie/apps/ppweb/app/views/users/search.html.erb where line #3 raised:

[404] {"error":"IndexMissingException[[users] missing]","status":404}

解决方法：要”索引数据“，参考：http://happycasts.github.io/ep/elasticsearch-setup/

[happypeter]

好，现在 es 可以工作了。

[happypeter]

重启机器， es 没有起来。es 本身的 plist 已经加载了，所以看来是 java7 没有加载。

export JAVA_HOME='/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home'

ADD TO ~/.zshrc. 也还是不行。 需要一种开机就加载 java 的方式。先不折腾了，启动机器后，打开终端，自己起一下 es 就能用了。

$ elasticsearch

[chiehwen]

thanks for sharing

[happypeter]

@chiehwen You're welcome