IDLE command and signalled to death by 14
My posting yesterday described a bug in Cyrus 2.0.9 that causes loss of messages in the source mailbox after the server aborts a copy command with message "signalled to death by 14". Here is some more information about the circumstances under which the copy command is aborted in the first place. I've discovered (on Solaris 7 at least) that if the client has previously used the IDLE command, then a copy command that does not complete within about 33 seconds is aborted with the "signalled to death by 14" message and the IMAP connection closed by the server. All is well if the client does not use the IDLE command. Perhaps any command not completing within about 30 seconds will meet a similar fate - I haven't checked. This might point to a problem in the IDLE code. -- John Holman Queen Mary. University of London, UK
IDLE problem
(Follow up to last message) In fact the IDLE problem is quite general. If the client has used the IDLE command, it seems that the imapd process will be killed and the connection closed with "signalled to death by 14" whenever more than about 50 seconds passes between commands sent by the client. Unless I misunderstand something, this shouldn't be happening. eg ... 4 IDLE + go ahead done 4 OK Completed wait 50 seconds server closes imap connection and reports "signalled to death by 14" Thanks, John.. -- John Holman Queen Mary. Universitly of London, UK
Re: IDLE problem
John Holman wrote:
(Follow up to last message)
In fact the IDLE problem is quite general. If the client has used the IDLE
command, it seems that the imapd process will be killed and the connection
closed with "signalled to death by 14"
whenever more than about 50 seconds passes between commands sent by the
client. Unless I misunderstand something, this shouldn't be happening.
eg
...
4 IDLE
+ go ahead
done
4 OK Completed
wait 50 seconds
server closes imap connection and reports "signalled to death by 14"
John,
Forget about my last message, here is the fix. This was stupid, I don't
know how I missed this. I must have changed the signal disposition at
the last minute without testing it. I apologize for any problems that
this caused. This fix (and a similar one for idle_idled.c) is in CVS
and will be in the next release.
Ken
diff -c -r1.1 -r1.2
*** idle_poll.c 2000/12/14 19:26:48 1.1
--- idle_poll.c 2001/01/16 16:54:26 1.2
***
*** 88,92
void idle_done(struct mailbox *mailbox)
{
/* Remove the polling function */
! signal(SIGALRM, SIG_DFL);
}
--- 88,92
void idle_done(struct mailbox *mailbox)
{
/* Remove the polling function */
! signal(SIGALRM, SIG_IGN);
}
--
Kenneth Murchison Oceana Matrix Ltd.
Software Engineer 21 Princeton Place
716-662-8973 x26 Orchard Park, NY 14127
--PGP Public Key--http://www.oceana.com/~ken/ksm.pgp
Cyradm - can't locate Shell.pm
Hi, I've successfully (partially) installed Cyrus 2.0.9 on SuSE 7.0. Imtest is working. But so far I've been unable to execute cyradm. The following error message appears: Can't locate Cyrus/IMAP/Shell.pm in @INC (@INC contains: /usr/lib/perl5/5.00503/i586-linux /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i586-linux /usr/lib/perl5/site_perl/5.005 .). BEGIN failed--compilation aborted. My path to perl is /usr/bin/perl. Could that be a potential problem. I really don't know where to search for the error. Do I have a chance to create mailboxes without cyradm? Maybe with a webfrontend?? Any help appreciated... Karlheinz btw. - Is it possible to store 5-10 imap mailboxes on a Pentium166/64mb (also running squid, apache, sendmail, samba with very low load)? How does it perform?
Re: IDLE problem
Cheers Ken,
Thanks for speedy patch.
Regs
Chris
Linux System Admin
Hinterlands Aust.
Ken Murchison wrote:
John,
Forget about my last message, here is the fix. This was stupid, I don't
know how I missed this. I must have changed the signal disposition at
the last minute without testing it. I apologize for any problems that
this caused. This fix (and a similar one for idle_idled.c) is in CVS
and will be in the next release.
Ken
diff -c -r1.1 -r1.2
*** idle_poll.c 2000/12/14 19:26:48 1.1
--- idle_poll.c 2001/01/16 16:54:26 1.2
***
*** 88,92
void idle_done(struct mailbox *mailbox)
{
/* Remove the polling function */
! signal(SIGALRM, SIG_DFL);
}
--- 88,92
void idle_done(struct mailbox *mailbox)
{
/* Remove the polling function */
! signal(SIGALRM, SIG_IGN);
}
--
Kenneth Murchison Oceana Matrix Ltd.
Software Engineer 21 Princeton Place
716-662-8973 x26 Orchard Park, NY 14127
--PGP Public Key--http://www.oceana.com/~ken/ksm.pgp
Re: Cyradm - can't locate Shell.pm
Karlheinz I'm sure about the perl problem. My guess is a missing perl module ;-) But you can create a user mail box using ( as the cyrus user) createmailbox user.freddy you can then also use listmailbox user.freddy The user authentication credentials must be set up for the user to login, how this is done depends on your SASL method. I think 5-10 mailboxes on that machine would be ok. I roughly gauge at about 1Mb of physical memory for each connected user. Though it might get a little slow when the other services load up. Regards Chris Blown Linux System Admin Hinterlands Aust. Karlheinz Blank wrote: Hi, I've successfully (partially) installed Cyrus 2.0.9 on SuSE 7.0. Imtest is working. But so far I've been unable to execute cyradm. The following error message appears: Can't locate Cyrus/IMAP/Shell.pm in @INC (@INC contains: /usr/lib/perl5/5.00503/i586-linux /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i586-linux /usr/lib/perl5/site_perl/5.005 .). BEGIN failed--compilation aborted. My path to perl is /usr/bin/perl. Could that be a potential problem. I really don't know where to search for the error. Do I have a chance to create mailboxes without cyradm? Maybe with a webfrontend?? Any help appreciated... Karlheinz btw. - Is it possible to store 5-10 imap mailboxes on a Pentium166/64mb (also running squid, apache, sendmail, samba with very low load)? How does it perform?
Re: Cyradm - can't locate Shell.pm
I had to go through the same issue. This is what I had to do (if my notes are correct): 1. cd /usr/local/lib/perl5/site_perl/5.005/i586-linux 2. mv Cyrus /usr/lib/perl5/site_perl/5.005/i586-linux/ 3. mv auto/* /usr/lib/perl5/site_perl/5.005/i586-linux/auto Avi --On Tuesday, January 16, 2001 11:17:22 PM +0100 Karlheinz Blank [EMAIL PROTECTED] wrote: Hi, I've successfully (partially) installed Cyrus 2.0.9 on SuSE 7.0. Imtest is working. But so far I've been unable to execute cyradm. The following error message appears: Can't locate Cyrus/IMAP/Shell.pm in @INC (@INC contains: /usr/lib/perl5/5.00503/i586-linux /usr/lib/perl5/5.00503 /usr/lib/perl5/site_perl/5.005/i586-linux /usr/lib/perl5/site_perl/5.005 .). BEGIN failed--compilation aborted. My path to perl is /usr/bin/perl. Could that be a potential problem. I really don't know where to search for the error. Do I have a chance to create mailboxes without cyradm? Maybe with a webfrontend?? Any help appreciated... Karlheinz btw. - Is it possible to store 5-10 imap mailboxes on a Pentium166/64mb (also running squid, apache, sendmail, samba with very low load)? How does it perform? -- Avi Schwartz Get a Life, [EMAIL PROTECTED] Get Linux!
Authentication Cyrus/sasl
I have tried about a million things. I am going to rant a bit hoping that something rings a bell and some advice miraculously pours forth. This is with SASL 1.5.24, cyrus 1.6.24 and 2.0.9, Linux 2.2.16 (RH 7.0). I will be eternally grateful if you can help. I am trying to install a cyrus that works with Mulberry and Netscape. I got both 2.0.9 and 1.6.24 working with Mulberry with DIGEST-MD5, etc. But none gives me PLAIN for Netscape (or Mulberry). SASL's sample-server reports that SASL is offering everything except ANONYMOUS, so that would not appear to be the problem. So I read in the docs for cyrus 1.5.something that PLAIN won't show up but that it works as LOGIN. I am not sure what this means: does cyrus' LOGIN become SASL's PLAIN? Does Cyrus LOGIN become SASL's LOGIN? Neither? Apparently the latter: my /usr/lib/sasl/Cyrus.conf (and imap.conf and cyrus.conf for good measure) has pwcheck_method: sasldb. I check via ldd and strace that, indeed, this is the right config directory. Yet per the auth.log (which PAM, unlike SASL, is civilized enough to use) cyrus insists on trying to authenticate LOGIN through PAM, which fails because it is user cyrus requesting the auth. OK, in the cyrus docs for version 2.0.9 I read that I need to enable STARTTLS in order for PLAIN to show up (another approach). I have enabled STARTTLS as far as I know, but Netscape is still failing. Does cyrus pretend to not grok TLS if there is no certificate? I will put one in, but there are only so many things I can try in a week. On a mostly unrelated note, sendmail is failing to authenticate via DIGEST-MD5 or anything else (I have recompiled it with GroupWriteUnsafeSASL or whatever). This, and the above, makes me want BAD to put a trace on SASL. I have tried redefining the VL macro to syslog, but this makes everything fail. Is there a way of finding out what SASL is doing? It certainly doesn't output anything to auth.log (or any other log) of its own will. I will ask this in the sasl list, but I thought you might know. Thanks a lot for any help. If I resolve this, I promise I will write an answer to some of those future FAQs that are pending. Juan
