Can you try 32755 and 32756? I've seen maybe related behavior.
--
Mgr. Jiří Činčura
https://www.tabsoverspaces.com/
On Tue, Mar 27, 2018, at 19:08, Mark Rotteveel wrote:
> I increased the TcpRemoteBufferSize to 32767 (the documented maximum
> value) in my firebird.conf, and when I run the full test suite of
> Jaybird, the tests hang consistently on the same test. It is
> blocked on> reading from the socket during a fetch.
>
> If I run this test in isolation it works, if I run all tests in
> the same> class it works. It only happens when I run all tests. Given this
> test> (like most Jaybird tests) creates a new database, it likely isn't a
> problem with the test itself.
>
> If I disable wire encryption, it works. If I comment out
> TcpRemoteBufferSize and re-enable wire encryption, it works. If I set>
> TcpRemoteBufferSize to 16384 or 32760 it also works fine.
>
> This all suggests that maybe some data isn't flushed, or there
> might be> a buffer overflow or another type of boundary issue somewhere, or
> that> maybe somewhere an assumption of multiples of 8 bytes has crept in.
>
> I'm not sure how long this problem has been there (and maybe it
> already> exists in Firebird 3), I do recall having similar problems before,
> but> I'm not sure if I changed TcpRemoteBufferSize when that happened (I
> sometimes do and sometimes don't change this setting). I'll see
> if I can> find the time and energy later this week to run these tests on
> earlier> snapshots and Firebird 3 as well, and maybe try some different
> values.>
> I hope in the meantime, that maybe one of you has an idea what the
> problem might be.
>
> Mark
> --
> Mark Rotteveel
>
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