yano3

diff --git a/build_config.rb b/build_config.rb
index 13751f2..9faddba 100644
--- a/build_config.rb
+++ b/build_config.rb
@@ -8,6 +8,10 @@ MRuby::Build.new('host') do |conf|
     cc.flags << ENV['NGX_MRUBY_CFLAGS'] if ENV['NGX_MRUBY_CFLAGS'] 
   end
 
+  conf.linker do |linker|
+    linker.option_library << ' -lstdc++'

yano3

diff --git src/http/ngx_http_mruby_filter.c src/http/ngx_http_mruby_filter.c
index 91e8e00..e90642d 100644
--- src/http/ngx_http_mruby_filter.c
+++ src/http/ngx_http_mruby_filter.c
@@ -34,7 +34,7 @@ static mrb_value ngx_mrb_set_filter_body(mrb_state *mrb, mrb_value self)
     body = mrb_funcall(mrb, body, "to_s", 0, NULL);
   }

-  ctx->body = (u_char *)mrb_str_to_cstr(mrb, body);
+  ctx->body = (u_char *)RSTRING_PTR(body);

yano3

2016/12/16 01:01:37 [error] 3153#3153: *1 mrb_run failed: return 500 HTTP status code to client: error: /etc/nginx/conf.d/filter.rb:3: string contains null byte (ArgumentError), client: 10.0.2.2, server: _, request: "GET /filter HTTP/1.1", host: "localhost:20080"
2016/12/15 11:40:34 [error] 4579#4579: *1 mrb_run failed: return 500 HTTP status code to client: error: /etc/nginx/conf.d/nigari.rb:12: string contains null byte (ArgumentError) while sending to client, client: 10.0.2.2, server: _, request: "GET /nigari?4 HTTP/1.1", upstream: "http://127.0.0.1:80/orig?4", host: "localhost:20080"

yano3

{
  nginx_version: Server::server_version,
  mruby_version: MRUBY_VERSION,
  ngx_mruby_version: Server::module_version,
}

yano3

moved to https://github.com/yano3/kankara/blob/master/elasticsearch/monitoring.md

Monitoring Elasticsearch

APIs

• Elasticsearch の様子を知るのに便利な様々な API がある。
• これらを参照する Elasticsearch プラグインや各種モニタリングツール (mackerel, munin, etc.) のプラグインが開発されている。
• API 間で重複する内容があったり、似ているようで異なるものがあったりするので使い分けに注意。

yano3

moved to https://github.com/yano3/kankara/blob/master/elasticsearch/cluster.md

Elasticsearch クラスタ概説

Node and Cluster

• ノード
  • 起動した Elasticsearch のインスタンス
  • 普通は1台のサーバに1インスタンス起動するので、 Elasticsearch の起動しているサーバのイメージ
• クラスタ

yano3

$ brew install elasticsearch                                                                                                                                                                                  (git)-[master]
==> Downloading https://download.elasticsearch.org/elasticsearch/release/org/elasticsearch/distribution/tar/elasticsearch/2.1.0/elasticsearch-2.1.0.tar.gz
######################################################################## 100.0%
==> Caveats
Data:    /usr/local/var/elasticsearch/elasticsearch_xxxxxxxxxx/
Logs:    /usr/local/var/log/elasticsearch/elasticsearch_xxxxxxxxxx.log
Plugins: /usr/local/Cellar/elasticsearch/2.1.0_1/libexec/plugins/
Config:  /usr/local/etc/elasticsearch/

yano3

$ brew install tuntap
==> Downloading https://homebrew.bintray.com/bottles/tuntap-20111101.mavericks.bottle.tar.gz
######################################################################## 100.0%
==> Pouring tuntap-20111101.mavericks.bottle.tar.gz
==> Caveats
In order for TUN/TAP network devices to work, the tun/tap kernel extensions
must be installed by the root user:

  sudo cp -pR /usr/local/Cellar/tuntap/20111101/Library/Extensions/tap.kext /Library/Extensions/
  sudo cp -pR /usr/local/Cellar/tuntap/20111101/Library/Extensions/tun.kext /Library/Extensions/

yano3

bundle config build.nokogiri --use-system-libraries

yano3

$ brew install redis
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/redis-2.8.11.mavericks.bottle.tar.gz
######################################################################## 100.0%
==> Pouring redis-2.8.11.mavericks.bottle.tar.gz
==> Caveats
To have launchd start redis at login:
    ln -sfv /usr/local/opt/redis/*.plist ~/Library/LaunchAgents
Then to load redis now:
    launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist
Or, if you don't want/need launchctl, you can just run: