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Running ElasticSearch on ZFS

Avatar for Troels Nørgaard Troels Nørgaard
May 10, 2016
Technology
1
1.7k

Running ElasticSearch on ZFS

A few hint learned from running ElasticSearch on the zettabyte filesytem (ZFS) on Linux / Ubuntu 14.04 at Tradeshift.

Avatar for Troels Nørgaard

Troels Nørgaard

May 10, 2016
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Transcript

  1. ElasticSearch on ZFS Troels Nørgaard @troelsnorgaard Date: 05/10/2016

  2. 2

  3. 3

  4. Case: An Ireland cluster 4

  5. 5

  6. So we had an incident... 6

  7. 7

  8. What is ZFS? 8

  9. • “True” enterprise file system from Solaris • Copy on

    Write (CoW) design • End to end checksum (SHA256) • Variable block size (recordsize) • Compression • Constant time Snapshots • Multi-level cache (ARC) • [...] ZFS Features 9

  10. How to configure ZFS for ES 10

  11. • Recordsize=8k • atime=off • compression=off (lz4: 1.05x) • echo

    1073741824 >> /sys/module/zfs/parameters/zfs_ar c_max • primarycache=metadata ZFS configuration for ElasticSearch on Linux 11

  12. 12

  13. 13

  14. Thank you! PS: We are hiring! 14