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20+ custom mackerel plugins in 20 minutes
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kazeburo
May 12, 2016
Technology
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3.5k
20+ custom mackerel plugins in 20 minutes
mackerel meetup #7 Tokyo
mercariでmackerelを導入したときに作ったpluginの紹介です #mackerelio
kazeburo
May 12, 2016
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Transcript
20+ Custom mackerel Plugins in 20 minutes mackerel Meetup#7 Masahiro
Nagano @kazeburo
Me • Masahiro Nagano • @kazeburo • Mercari, Inc. Principal
Engineer Site Reliability Engineering (SRE) Team • BASE, Inc. Technical Advisor
We’re Hiring!! ΑΖ͓͘͠ئ͍͠·͢ʂ
Mercari Your Friendly Mobile MarketPlace JP US
Infrastructure ͘͞ΒΠϯλʔωοτ ੴङDC ઐ༻αʔόͱΫϥυ Amazon Web Service US West (Oregon)
Region JP US
Monitoring (past) ͘͞ΒΠϯλʔωοτ ੴङDC ઐ༻αʔόͱΫϥυ Amazon Web Service US West
(Oregon) Region JP US Z ZABBIX ҟͳΔzabbixͷόʔδϣϯ.. WebUIΆͪΆͪർΕ.. ࢹՃ·Ͱͷεςοϓͷଟ͞.. ࢹ࿙ΕɺҟͳΔࢹ༰.. Z ZABBIX
Monitoring (now) ͘͞ΒΠϯλʔωοτ ੴङDC ઐ༻αʔόͱΫϥυ Amazon Web Service US West
(Oregon) Region JP US JP/USͷҰׅࢹ Service & RoleʹΑΔཧ Nagios & Sensu ϕʔεͷPlugin
Migration Items, Graphs Screens, Triggers Auto Discovery, UserParameters Official mackerel
plugins Official check plugins Nagios plugins Custom mackerel Plugins Custom check Pluginss + Simple Monitoring Rules Z ZABBIX ࣜʹΑΔ ࢹ จࣈྻɺɺ ࠩɺܭࢉ݁ՌͳͲͷ σʔλܗࣜ ΧελϜσʔλͷ औಘ
Custom Plugins my-ec2-tag[go], jmx-get[go], diff-detector[go], delay-checker, interval-checker, periodic-checker, check-mysql-uptime[go], check-memcached-uptime[go],
check-conntrack-free, check-crt-expiration, check-dns-rr, check-hydra-pos, check-inode, check-iptables, check-myip, check-solr-replication, check-solr-update, check-uptime, check-mysql-msr[go], mackerel-plugin-accelmail-counter, mackerel-plugin-gaurun-usage, mackerel-plugin-linux-lite, mackerel-plugin-msr[go] mackerel-plugin-ntpq, mackerel-plugin-search, mackerel-plugin-postfix mackerel-plugin-php-and-accesslog, mackerel-plugin-php-version and MORE! and utilitiy commands
my-ec2-tags $ my-ec2-tag --tag Role production EC2ΠϯελϯεͷλάΛऔಘ awsίϚϯυ͍ͷͰGoͰ࡞ ޙड़ͷdiff-detectorͱΈ߹Θͤͯ͏ Utility
delay-checker $ delay-checker -c 3 -- check-tcp -p 80 ࢦఆͨ͠ճΤϥʔ͕࿈ଓ͢ΔͱNG
max_check_attempts Φϓγϣϯ͕Ͱ͖ͨ check ࢹ Utility ▶ https://github.com/kazeburo/custom-mackerel-plugins
interval-checker $ interval-checker --interval 300 -- \ my-ec2-tag --tag Role
ࢦఆִͨؒ͠ͰࢹίϚϯυ࣮ߦ ࢦఆͨ࣌ؒ͠·ͰલճͷίϚϯυ࣮ߦ݁ՌΛฦ͢ check ࢹ Utility ▶ https://github.com/kazeburo/custom-mackerel-plugins
periodic-checker $ periodic-checker --range 00:00-06:00,06:30-24:00 \ -- check-tcp -p 80
ࢦఆͨ͠ൣғͷ͚࣌ؒͩࢹ ͦΕҎ֎OKΛฦ͢ Daily ϝϯςφϯεʗॏ͍batch͕͋Δͱ͖ʹ check ࢹ Utility ▶ https://github.com/kazeburo/custom-mackerel-plugins
diff-detector $ diff-detector -- date NG: detect difference: ```@@ -1
+1 @@ -Tue May 10 08:11:42 UTC 2016 +Tue May 10 08:11:43 UTC 2016``` ίϚϯυ࣮ߦ݁Ռͷ͕ࠩ͋ΔͱΤϥʔ ec2 tagɺ/etc/passwdϑΝΠϧͷࢹ ▶ https://github.com/kazeburo/diff-detector check ࢹ
check-conntrack-free $ check-conntrack-free -w 10000 -c 2000 OK: free:596376 max:655360
count:58984 `nf_conntrack_max - nf_conntrack_count` ͷ ݁Ռͷࢹɻiptables͕༗ޮͳ࣌ʹ check ࢹ ▶ https://github.com/kazeburo/custom-mackerel-plugins
check-crt-expiration $ check-crt-expiration -w 7 -c 5 -f /path/cert.pem OK:
Expiration date: 'Jun 1 10:38:57 2016 GMT'. 20 days left ূ໌ॻͷ༗ޮظݶͷ֬ೝ check-cert-file͕ެࣜʹՃ͞Εͨ check ࢹ ▶ https://github.com/kazeburo/custom-mackerel-plugins
check-dns-rr $ check-dns-rr -w 3 -c 2 \ --host prod.example.service.consul
OK: 3 dns-rr hosts found DNS-RRͷ݁Ռʹؚ·ΕΔIPͷࢹ Consul/DNSͰࢄ͍ͯ͠Δ࣌ʹ check ࢹ ▶ https://github.com/kazeburo/custom-mackerel-plugins
check-inode $ check-inode -w 10 -c 5 OK: /:1%, /dev:1%,
/dev/shm:1%, /run:1%, /sys/fs/cgroup:1%, /boot: 1%, /run/user/1037:1% ͯ͢ͷfilesystemͷinodeΛࢹ Ұ൪গͳ͍ͷ͕ᮢΛԼճΔͱNG mackerel-plugin-inode `inode.percentage.*.used` ʹରͯ͠ࢹ͕Ͱ͖ͳ͍ͷͰ͍ʹ͍͘ check ࢹ ▶ https://github.com/kazeburo/custom-mackerel-plugins
check-memcached-uptime check ࢹ $ check-memcached-uptime \ -p 11211 -w 110
-c 110 memcached Uptime OK: up 240 days, 03:08:01 ▶ https://github.com/kazeburo/go-check-memcached-uptime memcachedͷಥવࢮ => ࠶ىಈΛݕ͢Δ check-memcached keyͷऔಘΛߦ͏
check-mysql-uptime check ࢹ $ check-mysql-uptime --host=127.0.0.1 \ -w 110 -c
110 MySQL Uptime OK: up 71 days, 17:47:39 pingͰλΠϛϯάʹΑΓҾ͔͔ͬΒͳ͍࠶ىಈΛݕ MySQL 4.0.xͳͲʹ༗ޮ `check-mysql uptime` ͰՄೳ ▶ https://github.com/kazeburo/go-check-mysql-uptime
check-mysql-msr $ check-mysql-msr --host localhost -w 5 -c 10 MySQL
Multi Source Replication OK: [O]foo-db=io:Yes,sql:Yes,behind:0 bar-db=io:Yes,sql:Yes,behind:0 main-db=io:Yes,sql:Yes,behind:0 baz- db=io:Yes,sql:Yes,behind:0 MySQL 5.7ͷMulti Source Replicationͷ༻ ͲΕ͔ҰͭͰReplicationͷఀࢭ͋Δ͍ɺԆ͕ᮢΛ্ճΔͱNG mackerel-plugin-msr ผʹ࡞ͬͨ inodeಉ༷ `mysql-msr.*.beind` ʹରͯ͠ࢹ͕Ͱ͖ͳ͍ͷͰ͍ʹ͍͘ check ࢹ ▶ https://github.com/kazeburo/go-check-mysql-msr
mackerel-plugin-linux-lite Free Memory, 100%্͕ݶͷCPU Usage CPUίΞ͋ͨΓͷϩʔυΞϕϨʔδ, ϓϩηε Ұ؏ͨ͠ϝτϦΫεͷஅɺࢹͷᮢͷઃఆ͕Ͱ͖Δ Agent Plugin
▶ https://github.com/kazeburo/custom-mackerel-plugins
mackerel-plugin-ntpq ࣌ؒͷͣΕ(ઈର)ɺϦϞʔτͱͷSyncͷ༗ແ check-ntpoffset ͋Δ Agent Plugin ▶ https://github.com/kazeburo/custom-mackerel-plugins
mackerel-plugin-postfix Postfixͷqueue mackerel-plugin-mailq ͋Δ Agent Plugin ▶ https://github.com/kazeburo/custom-mackerel-plugins
mackerel-plugin-mysql-lite ίωΫγϣϯ/max_connectionͷׂ߹ɺϨϓϦέʔγϣϯԆ Slave SQL Thread/IO Threadͷಈ࡞༗ແɺ εϨου KuradoͰϝτϦΫεΛݟ͍ͯΔͷͰɺࢹʹඞཁͳάϥϑʹߜΔ ▶ https://github.com/kazeburo/go-mackerel-plugin-mysql-lite
Agent Plugin
mackerel-plugin-php-version ݹ͍PHPΛݕ^^ Agent Plugin
Plugins & Language • ͍͔ͭ͘ͷίϚϯυͷݺͼग़͠ͷΈ = > Shell Script •
ίϚϯυͷݺͼग़͠ͱ݁Ռͷॲཧ => LL (Perl) • HTTPϦΫΤετͱJSONॲཧ => LL (Perl) • AWS APIɺMySQLͷଓ =>Golang ͜ΕΒΛ͍׳Ε͍ͯΔ͜ͱ͕ॏཁ
ίʔυΛॻ͍ͯΛղܾ͢Δͷָ͍͠!! mackerel͍͕͍ͷ͋Δπʔϧ