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From: Pieter Wuille <pieter.wuille@gmail.com>
To: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>,
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Subject: [Bitcoin-development] Warning: many 0.7 nodes break on large number
of tx/block; fork risk
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--14dae9340f2d789ce004d7af39b7
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Hello everyone,
=CD've just seen many reports of 0.7 nodes getting stuck around block 22543=
0,
due to running out of lock entries in the BDB database. 0.8 nodes do not
seem to have a problem.
In any case, if you do not have this block:
2013-03-12 00:00:10 SetBestChain: new
best=3D000000000000015aab28064a4c521d6a5325ff6e251e8ca2edfdfe6cb5bf832c
height=3D225439 work=3D853779625563004076992 tx=3D14269257 date=3D2013-=
03-11
23:49:08
you're likely stuck. Check debug.log and db.log (look for 'Lock table is
out of available lock entries').
If this is a widespread problem, it is an emergency. We risk having
(several) forked chains with smaller blocks, which are accepted by 0.7
nodes. Can people contact pool operators to see which fork they are on?
Blockexplorer and blockchain.info seem to be stuck as well.
Immediate solution is upgrading to 0.8, or manually setting the number of
lock objects higher in your database. I'll follow up with more concrete
instructions.
If you're unsure, please stop processing transactions.
--=20
Pieter
--14dae9340f2d789ce004d7af39b7
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr">Hello everyone,<div><br></div><div style>=CD've just s=
een many reports of 0.7 nodes getting stuck around block 225430, due to run=
ning out of lock entries in the BDB database. 0.8 nodes do not seem to have=
a problem.</div>
<div style><br></div><div style>In any case, if you do not have this block:=
</div><div style><br></div><div style><div>=A0 2013-03-12 00:00:10 SetBestC=
hain: new best=3D000000000000015aab28064a4c521d6a5325ff6e251e8ca2edfdfe6cb5=
bf832c =A0height=3D225439 =A0work=3D853779625563004076992 =A0tx=3D14269257 =
=A0date=3D2013-03-11 23:49:08</div>
<div style><br></div><div style>you're likely stuck. Check debug.log an=
d db.log (look for 'Lock table is out of available lock entries').<=
/div><div style><br></div><div style>If this is a widespread problem, it is=
an emergency. We risk having (several) forked chains with smaller blocks, =
which are accepted by 0.7 nodes. Can people contact pool operators to see w=
hich fork they are on? Blockexplorer and <a href=3D"http://blockchain.info"=
>blockchain.info</a> seem to be stuck as well.</div>
<div style><br></div><div style>Immediate solution is upgrading to 0.8, or =
manually setting the number of lock objects higher in your database. I'=
ll follow up with more concrete instructions.</div><div style><br></div>
<div style>If you're unsure, please stop processing transactions.</div>=
<div style><br></div><div style>--=A0</div><div style>Pieter</div></div></d=
iv>
--14dae9340f2d789ce004d7af39b7--
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