Did you run a Sweep before backup?

On 05/05/2015 08:02, Nick Upson [email protected] [firebird-support] wrote:
yes, large transaction gap was the first thing I checked

Nick Upson, Telensa Ltd, Senior Operations Network Engineer
direct +44 (0) 1799 533252, support hotline +44 (0) 1799 399200

On 5 May 2015 at 12:01, Mark Rotteveel [email protected] <mailto:[email protected]> [firebird-support] <[email protected] <mailto:[email protected]>> wrote:

    On 5-5-2015 12:15, Nick Upson [email protected]
    <mailto:[email protected]> [firebird-support] wrote:
    > I have a system that is slowing down the longer it stays running
    and I'd
    > like to know why.
    >
    > The system is running firebird 2.1.5 on centos 5 with an average
    of 27
    > transactions per second and has now been running for 112 days.
    The data
    > throughput is unchanged, data is removed from the db as fast as its
    > added so the database remains roughly the same size at 130Gb.
    >
    > for example: on 1st Feb the backup took 4 hr 35 min, last night took
    > 9hrs 30 min
    >
    > Is this a known 2.1 issue (move to 2.5 is in the planning stages)?
    >
    > Is there anything I can do to prevent or improve this situation?
    >
    > Is there any evidence I can gather before I reboot the system
    which I
    > expect (from past experience) will return the system to the better
    > performance

    Have you checked for the existence of long running transactions (a
    high
    transaction gap)?

    Mark
-- Mark Rotteveel




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