--90e6ba3fd5fbb4dffe05148bbe0e Content-Type: text/plain; charset=UTF-8 Hello Howard, Please accept my apologies, the issue was not related to LMDB. There have been a data race in my code that was only triggered by fast writes. Sorry for late answer, - your e-mail landed into the spam-folder, and I just found it.
With best regards, Pavel. 2015-04-16 8:04 GMT+06:00 Howard Chu <[email protected]>: > [email protected] wrote: > >> Full_Name: Pavel Kraynyukhov >> Version: only LMDB from git and lmdb-0.9.14 >> OS: Gentoo Linux >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (37.99.47.171) >> >> >> Hello there, I have ran into an issue with LMDB, which I can reproduce at >> will, >> but it seems a specific one. The git commit is >> 3368d1f5e243225cba4d730fba19ff600798ebe3 >> And this commit and my issue seems to be related. >> >> 1. I use MDB_NOTLS flag on environment open. >> 2. if I use MDB_NOSYNC flag for LMDB environment, the writer thread is >> stuck >> after several transactions (writer thread backtrace): >> > > P.S. tested against system provided lmdb version 0.9.14 and result is the >> same. >> So this maybe not related to latest commit in git. >> > > If you're having this problem in 0.9.14 then it is certainly not related > to 3368d1f5e243225cba4d730fba19ff600798ebe3. > > You confirm that the issue does not occur in 0.9.13? Can you upload a test > case demonstrating the problem? > > -- > -- Howard Chu > CTO, Symas Corp. http://www.symas.com > Director, Highland Sun http://highlandsun.com/hyc/ > Chief Architect, OpenLDAP http://www.openldap.org/project/ > --90e6ba3fd5fbb4dffe05148bbe0e Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable <div dir=3D"ltr"><div><div><div><div>Hello Howard,<br></div>Please accept m= y apologies, the issue was not related to LMDB. There have been a data race= in my code that was only triggered by fast writes.<br></div>Sorry for late= answer, - your e-mail landed into the spam-folder, and I just found it.<br= ><br></div>With best regards,<br></div>Pavel.<br><div><div><div><div><div c= lass=3D"gmail_extra"><br><div class=3D"gmail_quote">2015-04-16 8:04 GMT+06:= 00 Howard Chu <span dir=3D"ltr"><<a href=3D"mailto:[email protected]"; target= =3D"_blank">[email protected]</a>></span>:<br><blockquote class=3D"gmail_quo= te" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"= ><a href=3D"mailto:[email protected]"; target=3D"_blank">[email protected]</a> wrote:<br= > <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"> Full_Name: Pavel Kraynyukhov<br> Version: only LMDB from git and lmdb-0.9.14<br> OS: Gentoo Linux<br> URL: <a href=3D"ftp://ftp.openldap.org/incoming/"; target=3D"_blank">ftp://f= tp.openldap.org/incoming/</a><br> Submission from: (NULL) (37.99.47.171)<br> <br> <br> Hello there, I have ran into an issue with LMDB, which I can reproduce at w= ill,<br> but it seems a specific one. The git commit is<br> 3368d1f5e243225cba4d730fba19ff600798ebe3<br> And this commit and my issue seems to be related.<br> <br> 1. I use MDB_NOTLS flag on environment open.<br> 2. if=C2=A0 I use MDB_NOSYNC flag for LMDB environment, the writer thread i= s stuck<br> after several transactions (writer thread backtrace):<br> </blockquote> <br> <blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p= x #ccc solid;padding-left:1ex"> P.S. tested against system provided lmdb version 0.9.14 and result is the s= ame.<br> So this maybe not related to latest commit in git.<br> </blockquote> <br> If you're having this problem in 0.9.14 then it is certainly not relate= d to 3368d1f5e243225cba4d730fba19ff600798ebe3.<br> <br> You confirm that the issue does not occur in 0.9.13? Can you upload a test = case demonstrating the problem?<span class=3D"HOEnZb"><font color=3D"#88888= 8"><br> <br> -- <br> =C2=A0 -- Howard Chu<br> =C2=A0 CTO, Symas Corp.=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0<a href=3D"= http://www.symas.com"; target=3D"_blank">http://www.symas.com</a><br> =C2=A0 Director, Highland Sun=C2=A0 =C2=A0 =C2=A0<a href=3D"http://highland= sun.com/hyc/" target=3D"_blank">http://highlandsun.com/hyc/</a><br> =C2=A0 Chief Architect, OpenLDAP=C2=A0 <a href=3D"http://www.openldap.org/p= roject/" target=3D"_blank">http://www.openldap.org/project/</a><br> </font></span></blockquote></div><br><br></div></div></div></div></div></di= v> --90e6ba3fd5fbb4dffe05148bbe0e--
