![http://opentsdb.example.com
/#start=2013/06/05-17:00:00
&end=2013/06/05-19:00:00
&m=sum:hadoop.hbase.regionserver.requests
{server_type=dwh-data}
&o=axis x1y1
&m=sum:proc.stat.cpu.percentage_iowait
{server_type=dwh-data,dc=lv7,host=data08}
&o=axis x1y2
&ylabel=HBase Requests
&y2label=&CPU IOWait
&yrange=[0:]
&wxh=1475x600](https://image.slidesharecdn.com/operations-session3-130708183842-phpapp01/85/HBaseCon-2013-OpenTSDB-at-Box-25-320.jpg)
![http://opentsdb.example.com
/q?start=2013/06/05-17:00:00
&end=2013/06/05-19:00:00
&m=sum:hadoop.hbase.regionserver.requests
{server_type=dwh-data}
&o=axis x1y1
&m=sum:proc.stat.cpu.percentage_iowait
{server_type=dwh-data,dc=lv7,host=data08}
&o=axis x1y2
&ylabel=HBase Requests
&y2label=&CPU IOWait
&yrange=[0:]
&wxh=1475x600
&ascii](https://image.slidesharecdn.com/operations-session3-130708183842-phpapp01/85/HBaseCon-2013-OpenTSDB-at-Box-26-320.jpg)
Uploaded byCloudera, Inc.
HBaseCon 2013: OpenTSDB at Box
This document discusses Box's use of OpenTSDB to store and query time series metrics data. It describes how OpenTSDB provides a scalable and easy way to collect, store, and query large amounts of metrics data compared to previous solutions. It includes examples of using OpenTSDB, such as a script to collect MySQL metrics and adding it as a cron job, and examples of querying the data through the OpenTSDB API and web interface. It also provides some statistics about Box's OpenTSDB deployment and next steps.
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More from Cloudera, Inc.
HBaseCon 2013: OpenTSDB at Box
- 1. OpenTSDB at Box #HBaseCon2013 JonathanCreasy Geoffrey Anderson @geodbz
- 2. Jonathan Creasy • SysAdmin@ Box, Inc. • Hadoop for Analytics
- 3. Geoffrey Anderson • DBA@ Box, Inc. • Tooling for MySQL and HBase • #DBHangOps
- 4.
- 8. •Storing •RRDs •Flat files •Pre-defined •Graphs •Data tocollect •Poll model These are problematic because...
- 10.
- 11. OpenTSDB is... • Distributed •Scalable • Time Series Database • Runs on HBase • Created By Benoit Sigoure HBase TSD for Querying mydb.example.com HAProxy fe1.example.com TSD for Storing Push Metrics Query via API
- 12. • FAST • EASYto Scale • EASY to Populate • EASY to collect data • EASY to Query Why OpenTSDB?
- 13.
- 14. #!/usr/bin/env bash timestamp=$(date +%s) mysql-ss -e "SHOW GLOBAL STATUS" | while read var val do echo "mysql.$var $timestamp $val host=$HOSTNAME" done ganderson@mydb.example.com:~$ _./mysql_collector.sh mysql.Aborted_connects 1366399993 0 host=mydb.example.com mysql.Binlog_cache_disk_use 1366399993 0 host=mydb.example.com mysql.Binlog_cache_use 1366399993 0 host=mydb.example.com mysql.Binlog_stmt_cache_disk_use 1366399993 0 host=mydb.example.com mysql.Binlog_stmt_cache_use 1366399993 0 host=mydb.example.com mysql.Bytes_received 1366399993 19453687 host=mydb.example.com mysql.Bytes_sent 1366399993 1238166682 host=mydb.example.com mysql.Com_admin_commands 1366399993 1 host=mydb.example.com mysql.Com_assign_to_keycache 1366399993 0 host=mydb.example.com ... Example: mysql_collector.sh
- 15. #!/usr/bin/env bash timestamp=$(date +%s) mysql-ss -e "SHOW GLOBAL STATUS" | while read var val do echo "mysql.$var $timestamp $val host=$HOSTNAME" done ganderson@mydb.example.com:~$ _./mysql_collector.sh mysql.Aborted_connects 1366399993 0 host=mydb.example.com mysql.Binlog_cache_disk_use 1366399993 0 host=mydb.example.com mysql.Binlog_cache_use 1366399993 0 host=mydb.example.com mysql.Binlog_stmt_cache_disk_use 1366399993 0 host=mydb.example.com mysql.Binlog_stmt_cache_use 1366399993 0 host=mydb.example.com mysql.Bytes_received 1366399993 19453687 host=mydb.example.com mysql.Bytes_sent 1366399993 1238166682 host=mydb.example.com mysql.Com_admin_commands 1366399993 1 host=mydb.example.com mysql.Com_assign_to_keycache 1366399993 0 host=mydb.example.com ... Example: mysql_collector.sh Metric name Timestamp Value “Tags” (key=val)
- 16. * * ** * mysql_collector.sh | nc opentsdb.example.com 4242 Example: adding a cron for OpenTSDB
- 18. ganderson@mydb.example.com:tcollector$ tree . |-- collectors ||-- 0 | | |-- ifstat.py | | |-- iostat.py | | |-- procnettcp.py | | |-- procstats.py | |-- 15 | | `-- dfstat.py | |-- 30 | | |-- mysql_collector.sh | |-- 300 | | `-- ptTcpModel.sh | `-- etc | |-- config.py |-- config |-- startstop `-- tcollector.py Run forever Run every 15 seconds Run every 5 minutes Run every 30 seconds
- 19.
- 25. http://opentsdb.example.com /#start=2013/06/05-17:00:00 &end=2013/06/05-19:00:00 &m=sum:hadoop.hbase.regionserver.requests {server_type=dwh-data} &o=axis x1y1 &m=sum:proc.stat.cpu.percentage_iowait {server_type=dwh-data,dc=lv7,host=data08} &o=axis x1y2 &ylabel=HBaseRequests &y2label=&CPU IOWait &yrange=[0:] &wxh=1475x600
- 26. http://opentsdb.example.com /q?start=2013/06/05-17:00:00 &end=2013/06/05-19:00:00 &m=sum:hadoop.hbase.regionserver.requests {server_type=dwh-data} &o=axis x1y1 &m=sum:proc.stat.cpu.percentage_iowait {server_type=dwh-data,dc=lv7,host=data08} &o=axis x1y2 &ylabel=HBaseRequests &y2label=&CPU IOWait &yrange=[0:] &wxh=1475x600 &ascii
- 27. How does thischange things?
- 29. In all seriousness,though... • Easily see aggregate graphs • Easily build graphs on-the-fly • Full granularity forever • API request for raw data • Cluster-wide nagios checks with check_tsd
- 30. Challenges Switching • Aggregatesare the default • Mouse-zooming (patched!) • Auto-suggest for metrics • “The graphs aren’t pretty” • Migrating from proof of concept • Plan for 5+ machines • Data pruning may be required
- 31. Some Quick Numbers OpenTSDB @ Box •24,448 metrics • 79 tag keys • 5,371,701 tag values • 150,000 data points per second
- 32. To store metricdata for anything that is measurable Collection Philosophy
- 33.
- 34.
- 35. Image credits • http://upload.wikimedia.org/wikipedia/commons/7/7b/Batelco_Network_Operations_Centre_(NOC).JPG •http://www.flickr.com/photos/hoyvinmayvin/5873697252/ • http://www.percona.com/doc/percona-monitoring-plugins • http://www.2cto.com/uploadfile/2012/0731/20120731112415744.jpg • http://media.tumblr.com/tumblr_lvfspoenWU1qi19a2.png • http://img.izismile.com/img/img4/20110527/640/you_can_be_a_superhero_640_01.jpg • http://openclipart.org/image/250px/svg_to_png/26427/Anonymous_notebook.png • http://images.alphacoders.com/768/2560-1600-76893.jpg • http://www.flickr.com/photos/in365/4861180503/ • http://openclipart.org/image/250px/svg_to_png/130915/Prohibido_3D.png • http://www.flickr.com/photos/61114149@N02/5566484951/ • http://opentsdb.net/img/tsd-sample.png • http://images2.wikia.nocookie.net/__cb20080911160202/bttf/images/5/57/WhatdidItellyou-HQ.jpg • http://www.flickr.com/photos/lisakayaks/3028350539/ • http://www.flickr.com/photos/25566302@N00/1472400115 • http://www.flickr.com/photos/grandmaitre/5846058698/ • http://www.flickr.com/photos/7518432@N06/2673347604/
Editor's Notes
- #2 Will be talking about OpenTSDBHow OpenTSDB changed monitoring at box
- #6 Running gangliaGet pushed metricsHave to define aggregatesRRD format
- #7 Cacti has an easy centralized interfaceLots of templates accessibleUses polling model
- #8 Graphite!Get pushedmetricsfromvarious servicesNeed to define the graphs youwantNeed to define aggregations
- #9 RRDs auto-downsampleFlat files can be hard to manage at scalePre-definedNeed to know what you want to monitorPainful to setup new collections/graphsPollDoesn’t scale horizontally wellFalls behind and data gets droppedOccasionally drop important metrics to make it catch uphttp://monami.sourceforge.net/gfx/ganglia.pnghttp://www.cacti.net/images/cacti_promo_main.pnghttp://graphite.wdfiles.com/local--files/screen-shots/graphite_cli_800.pnghttp://nagios.sourceforge.net/images/screens/new/service-detail.png
- #10 Suddenly finding problems and correlating issues is difficultMaybe you don’t have a NOC yetMaybe you do, and they need better graphs
- #12 IT’S BIGGER ON THE INSIDE – just kiddingFast!Easy to build graphs on the flyHella easy to scale – just add nodes (HBase or TSDs)Very easy to put data into it – NEXT SLIDES TALK ABOUT THIS YO
- #19 Running threads follows the CPU spikes PERFECTLYBox has a “long query” killer that gets more aggressive as more threads stack upShould get a look at queries on the server
- #20 Running threads follows the CPU spikes PERFECTLYBox has a “long query” killer that gets more aggressive as more threads stack upShould get a look at queries on the server
- #21 Running threads follows the CPU spikes PERFECTLYBox has a “long query” killer that gets more aggressive as more threads stack upShould get a look at queries on the server
- #23 If you prefer text, that’s also an option via APIYou can build cool tools using the APIWeek over Week graphsSimplifies anomaly detectionURL is pretty simpleEffectively just use “q?” and add “&ascii”
- #25 Aggregatesare thedefault–shift in thinking from lookingatspecificimportantservers.Zooming in on a timeslice was painfullymanual– I wroteup a patch to addmouse-zooming and upstreamed. Thiscementedopentsdb as a powerful monitoring tool for Box, overnightAuto-suggest for metricsisspotty– we wrote a quick cron job that dumps full metric list into JSON “Graphs aren’t pretty” – a few changes to the base GNUPlot options solved this. There’s also a “Smooth” option in the interface nowMigrating from POC – we had a single-node setup for the longest time until that fell over...a lotPlan for 3+ machines – it’s enough to run all the needed bits for a light-weight distributed HBase and TSD setupData pruning – ~4 bytes per metric before HDFS replication add up quicklymysql_tcollector - 370 metrics -- ~1.5k per server. X 30s interval = ~4.2MB/dayeither have a plan to prune old data or build out extra capacity and predict storage needs per server/metric added
- #33 New metrics available with every code push