[Xapian-discuss] empty FD after reopen since version 1.2.16
matthias.lay at securepoint.de
Tue Apr 28 12:16:52 BST 2015
On 04/28/2015 07:40 AM, Olly Betts wrote:
> On Mon, Apr 27, 2015 at 02:23:25PM +0200, matthias lay wrote:
>> after upgrading xapian I encountered the same problem as
>> described in ticket #645 Read block errors after reopen()
>> in our setup its 100% reproducible after each reopen(). I
>> downgraded again and it seems the problem occurs in Version
>> 1.2.16 and above. in <=1.2.15 everything works fine without
>> seeing this error once.
> I suspect this commit fixes your issue - you can probably just
> apply the chert parts to 1.2.x easily, though I've not tried to
> backport it yet:
> Thanks for narrowing down the release which introduced this - the
> relevant change in 1.2.16 is presumably this one:
> | * Reuse a cursor for reading values from valuestreams rather than
> creating | a new one each time. This can dramatically reduce the
> number of blocks | redundantly reread when sorting by value. The
> rereads will generally get | served from VM cache, but there's
> still an overhead to that.
> Before that we just created a cursor each time, so the underlying
> cursor bug wouldn't be triggered in this case.
> Cheers, Olly
just tested your patch with 1.2.20 and the exception hasnt occured so
far. so seems to fix the problem.
thx for the fast fix
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