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Five cool innovations in Zarafa

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Presentation of Steve Hardy about new cool innovations in Zarafa at Zarafa SummerCamp 2011

Presentation of Steve Hardy about new cool innovations in Zarafa at Zarafa SummerCamp 2011

Published in: Technology

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Transcript

  • 1. N cool innovations
    Steve Hardy, Zarafa
  • 2. Zarafa MSR
    Mail store relocator
    Used to move store from one system to another
    Also does real-time sync after the initial copy
    Sync is bi-directional
    Server1
    Server2
  • 3. MSR copy only possible between two separate Zarafa instances
    Can be in the same cluster, but not required
    Destination user should not have a store
    You can remove it with zarafa-admin –unhook-store
    Zarafa MSR: how to use
  • 4. [Connection]
    # Local server
    serverpath: file:///var/run/zarafa
    # Path to the ssl certificate to get admin access on remote server
    sslkey_file: ssl.cert
    sslkey_pass: pass
    [Servers]
    server_alias1: https://server1:237/zarafa
    [Mapping]
    user1: https://server2:237/zarafa
    user2: %(server_alias1)s
    Zarafa MSR: configuration file
  • 5. MSR will keep stores in sync after the initial copy
    Allows user to keep working
    Administrator can switch user to other node
    At next login, the user will have been migrated
    No profile re-creating needed
    Zarafa MSR: sync after copy
  • 6. MSR also does bidirectional sync
    This allows general replication of two stores
    Can be used within a cluster or outside a cluster
    Uses
    Create a shared, replicated store across different zarafa instances
    Replicate the public store to other Zarafa nodes
    Create replicated stores for geographic separation
    Zarafa MSR: a totally different use
  • 7. Separate package for windows
    Fixes opening other calendars
    Fixes private items
    Still to come
    Addressbook fixes
    Conversation view
    Outlook 2010
  • 8. Zarafa python tools
    Zarafa-rrd
    Creates and updates statistics
    Uses standard ‘rrdtools’ package
    Makes nice graphs
  • 9. Zarafa python tools
    Zarafa-cachestat
    Shows cache statistics
    No longer available from SIGUSR1
    (by the way SIGUSR2 was already removed in Zarafa 7.0, please use zarafa-admin –clear-cache)
    uquota ( 0/ 0) (N/A)
    index1 ( 3/ 3) (100%)
    obj ( 8/ 27) (29%)
    abinfo ( 0/ 0) (N/A)
    userid ( 0/ 0) (N/A)
    quota ( 0/ 0) (N/A)
    server ( 0/ 0) (N/A)
    cell ( 0/ 0) (N/A)
    index2 ( 2/ 6) (33%)
    extern ( 0/ 0) (N/A)
    acl ( 0/ 0) (N/A)
    store ( 9/ 22) (40%)
  • 10. Zarafa-vmstat
    Shows ‘realtime’ information on your server
    Will be shipped for 7.0.1
    Zarafa python tools
  • 11. Main problem:
    N concurrent users
    Each user has one ‘push’ connection
    The push connection is an always-on TCP connection
    The connection is handled by Apache (PHP)
    Apache runs a process for each connection
    N = 1 million
    1 million Apache processes needed
    Z-Push: a large-scale implementation
  • 12. Solution: use Apache only for control data
    Apache handles normal z-push connections
    Specialized native c++ component handles push connections
    Tested with up to 300000 concurrent TCP connections on a single host
    HTTP request
    Proxy
    PHP/
    Apache
    C++
    Push
    App
  • 13. Some things to think about
    Only about 60000 available TCP ports
    If you want more, you need to have multiple IP’s
    Useful to do with load balancer
    HTTP request
    Proxy
    PHP/
    Apache
    C++
    Push
    App
  • 14. Project status
    Not currently released
    If you want to use it, please contact us