Your SlideShare is downloading. ×
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Mongo db admin_20110316
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Mongo db admin_20110316

1,357

Published on

MongoDB Administration Slides - Keynote version

MongoDB Administration Slides - Keynote version

Published in: Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
1,357
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
4
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • \n
  • Transcript

    • 1. Administration Michael DelNegro Principal Database Administrator AOL
    • 2. About Me• DBA at AOL (Dulles) for six years• Background in Sybase• Now MySQL, PostgreSQL and NoSQL• I heart Big Data• Operations
    • 3. MongoDB at AOL• In use since Summer 2010• I currently administer two applications for MapQuest and Patch• There are other MongoDB applications in use throughout the company and more on the way
    • 4. MapQuest App• Tracks User Profile Information• V. 16.5.latest (just upgraded from 1.6.3)• 26 Total Hosts, CentOS 5, 16GB RAM• 300 million users, 130 million saved maps• Replica Sets• 3 Sharded Collections • lookup, east coast, west coast
    • 5. Patch App• Tracks User Activity• Master, 2 Slaves• V. 1.6.3• About 100GB of data• Throwaway data (for now)
    • 6. About Patch• “HyperLocal” news sites across the country• Fills gap in coverage left by local newspapers• Currently 800 sites are live• 1000+ by end of 2011
    • 7. Nearby Patch Sites• Vienna (ex. vienna.patch.com)• Ashburn• Reston• McLean• CollegePark• GreaterAnnapolis• 50+ in DC Area
    • 8. Upcoming Ops Plans• Upgrade to 1.8• Migrate Patch to Replica Sets• Move MapQuest to bigger hardware (16GB -> 64GB memory)• Add additional slaves
    • 9. Admin Tips• Slaves are a MUST pre1.8• Use 64 bit version • 32 bit version has 2.5 GB storage limit• Use xfs or ext4• Keep eye on oplog size• Turn off atime & dtime• Consider using getLastError()
    • 10. More Admin Tips• Increase File Descriptor Limits• Do not use kill -9 (pre-1.8)• Consider having a slave on replication delay • -- slavedelay <seconds>• db.runCommand(“logRotate”)• Keep db.<collection>.totalIndexSize() less than RAM
    • 11. Even More Admin Tips• Omit parenthesis to see command details• 5 Primitives of Mongo • insert, remove, update, find, getMore• Replication is slave polling master process• Master and slaves each have their own oplog• Choose shard key carefully (ex. timestamp)
    • 12. Admin Tools• mongodump-mongorestore • use fsync and lock database to ensure consistent backup• fsync and lock are a must for file system backups (ex LVM)• http://localhost:28017 (server port + 1000)• db.currentOp()
    • 13. More Admin Tools• mongostat• db.printReplicationInfo()• db.serverStatus()• db.<collection>.stats()• Database Profiler• Explain
    • 14. Admin Resources• mongodb.org • Events • Forums• Wordnik Mongo Admin Tools (Github)• Mongo Snippets (Github)• IRC (freenode #mongodb)
    • 15. More Admin Resources• slideshare (use time-based search)• GUI Admin Tools • MongoVUE • Others• Kristina Chodorows Blog• Boxed Ice
    • 16. Even More Resources• Follow @MongoQuestion (StackOverflow)• MongoDB on Quora (@q_mongodb)• 10gen Deployment Strategies Slides• Books• Training• 10gen Support
    • 17. New MongoDB Release• 1.8 (Out Today! - March 16) • Single server durability (journaling) • Enhancements to sharding & replica sets • Covered indexes • Tab Completion • Rename fields without pulling down object
    • 18. Future Releases• 2.0 (May/June?) • Better map-reduce and aggregation • Improved concurrency • Online compaction • TTL time-out collections• Beyond • full-text search?
    • 19. Thank You!• www.slideshare.net/radiocats• @radiocats on Twitter• www.linkedin.com/in/mdelnegro

    ×