FEDORA 4 X86_64 GLIBC 2.3.6-3 (I can't upgrade it to the lastest version.
Because I have a chiliasp 3.6.2 32-bit run ASP VBSCRIPT on APACHE 1.3 32-bit
software, it need GLIBC 2.3.x and Kernel 2.6)
KERNEL 3.3 MOD FROM FC15 (It will display KERNEL 2.6.43 Number). Kernel is not
a main problem. Because I have been test 2.6.32 or other. same problem was
found.
REAL HARDWARE -> INTEL B85M i3-4150 16G RAM SATA3 RAID 1 LINUX SOFTRAID1 MDADM
Corp. Email System is not heavily use when I test it in HK TIME midnight.
Anyway I will test this issue in other linux distribution in VM, such as
CentOS. (You can give me any linux distribution, let's build the same platform
in VM. I use virtualbox.
[root@bravo logs]# uname -a
Linux bravo 2.6.43-gcc402 #3 SMP Sun May 17 23:10:29 HKT 2015 x86_64 x86_64
x86_64 GNU/Linux
[root@bravo logs]#
[root@bravo logs]# ldd /var/MailRoot/bin/XMail127v3
linux-vdso.so.1 => (0x00007ffff7f0e000)
libssl.so.0.9.8 => /usr/local/ssl/lib/libssl.so.0.9.8
(0x00007f43b00bc000)
libcrypto.so.0.9.8 => /usr/local/ssl/lib/libcrypto.so.0.9.8
(0x00007f43afd35000)
libdl.so.2 => /lib64/libdl.so.2 (0x0000003e18200000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x0000003e18600000)
libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00007f43afa37000)
libm.so.6 => /lib64/libm.so.6 (0x0000003e18000000)
libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x0000003e19400000)
libc.so.6 => /lib64/libc.so.6 (0x0000003e17d00000)
/lib64/ld-linux-x86-64.so.2 (0x0000003e17b00000)
*******************************************************************
/var/MailRoot/bin/XMail127v3 -Md -Ms /var/MailRoot -Sl -Pl -Cl \
-SI 0.0.0.0:8025 -SI 0.0.0.0:25 \
-PI 0.0.0.0:8110 -PI 0.0.0.0:110 \
-BI 0.0.0.0:995 \
-XI 0.0.0.0:465 \
-Ql -Ln 256 -Pt 60 -St 150 -F- -SX 2048 -Mx 64 \
-Qn 64 -PX 2048 -Qr 10000 -Qt 1 -QT 150 -Qg -CX 256
*******************************************************************
>---- Original Message ----
>From: "U.Mutlu" <um4...@mutluit.com>
>To: t...@os.st, "XMail Users Mailing List" <xmail@xmailserver.org>
>Sent: Tue, May 26, 2015, 1:06 PM
>Subject: Re: [xmail] BUG : XMAIL 1.27 with SSL
>
>Oversea Site via xmail wrote on 05/26/2015 05:14 AM:
>> No Log Error. No Fatal Error log. No Core Dump
>>
>> It's not RAM or HW problem. It's XMAIL internal issue, because when I switch
>> to stunnel, all problems solved. And then when I test K9-MAIL with
>> XMAIL+STUNNEL, K9 Client will not have any JAVA somethings Exception Error
>>
>> Two tests
>>
>> 1. Very Important Thing in Xmail 1.27 Native SSL
>>
>> If the emailbox has many emails such as 10000, Microsoft Outlook with SSL or
>> NON-SSL download them, it WILL NOT have this issue.
>> Some Tencent Foxmail for Windows, after finish ssl session, it will take the
>> server be FIN_WAIT2 (some version, not all)
>> But K9-MAIL for Android, Download first 1000, it will appear the error in
>> K9-MAIL randomly.
>>
>>
>> 2. Xmail 1.27 + Stunnel Proxy
>>
>> If the emailbox has many emails such as 10000, Microsoft Outlook with SSL or
>> NON-SSL download them, it WILL NOT have this issue.
>> Some Tencent Foxmail for Windows, after finish ssl session, it WILL NOT have
>> any problem. Server WILL NOT TAKE FIN_WAIT_2
>> K9-MAIL for Android, Download first 1000, it will NOT DISPLAY any error when
>> it finished download emails.
>
>I would need full description about the server HW and SW (OS version,
>xmail start params etc., any xmail patches applied etc.).
>
>There is of course also the possibility that the bug lies in the
>said mobile client program, especially if it goes online via
>unstable mobile links as it seems to be a link latency problem,
>or the client does not close the socket cleanly. Take a look at these:
>https://github.com/Automattic/socket.io/issues/1380
>http://stackoverflow.com/questions/5328155/preventing-fin-wait2-when-closing-socket
>
>cu
>Uenal
>
>
>>> ---- Original Message ----
>>> From: "U.Mutlu" <um4...@mutluit.com>
>>> To: t...@os.st, "XMail Users Mailing List" <xmail@xmailserver.org>
>>> Sent: Tue, May 26, 2015, 10:11 AM
>>> Subject: Re: [xmail] BUG : XMAIL 1.27 with SSL
>>>
>>> Oversea Site via xmail wrote on 05/25/2015 09:23 PM:
>>>> I found the bug on XMAIL 1.27 with SSL (POP3S is main), SSMTP service maybe
>>>> has a same bug too
>>>>
>>>> 1. it will have too many FIN_WAIT_2 on POP3S with two many requests, It is
>>>> because of some non-popular WINDOWS CLIENT e.g. tencent foxmail , outlook
>>>> will
>>>> not have this issue.
>>>>
>>>> 2. If you're using XMAIL'S internal SSL POP3S with any openssl lib. (tested
>>>> 0.9.8za 1.0.0, tested gcc 4.0.2/4.0.4/4.3.6) and the email account contain
>>>> too
>>>> many emails (1000-2000 emails), the mobile client POP3 such as Samsung
>>>> internal Email Client is using SSL, K9-MAIL on any android devices using
>>>> SSL,
>>>> some iPhone devices (connect with XMAIL SSL port 995), will not download
>>>> them
>>>> successfully (Android Error - Java Exception Error) and some
>>>> iPhone device will stuck with it, it will not download all emails
>>>> successfully. But if you disable XMAIL'S internal POP3S with -B- startup
>>>> option, and switch stunnel 5.17 port 995 tunnel to port 110, it will solve
>>>> this problem and kick out FIN_WAIT_2
>>>>
>>>> ***** stunnel 5.17 config *****
>>>> [pop3s]
>>>> accept = 995
>>>> connect = 110
>>>> cert = /etc/stunnel/stunnel.pem
>>>> ***************************
>>>
>>>
>>> What do the logs (server, client) say about the errors?
>>>
>>> I think you need a faster server HW and/or need to optimize the resources,
>>> for example the number of threads, and possibly also RAM.
>>> An excerpt from the doc:
>>> "
>>> If you have an heavily loaded server remember to setup the best number of
>>> XMAIL threads by specifying the '-Qn nthreads' option (you must do some
>>> tentatives to find the best value for your needs). Also you can limit the
>>> number of SMTP, POP3 and CTRL service threads by specifying the options '-SX
>>> maxthreads', '-PX maxthreads' and '-CX maxthreads'.
>>> "
>>>
>>> If there are mail filters, you can put them into a ramdisk and set PATH
>>> accordingly, or use an absolute path to them. See also XMAIL_TEMP in the
>>> doc.
>>>
>>> In task manager / system monitor you can see how the resource usage is,
>>> especially CPU, memory, and network.
>>>
>>> --
>>> cu
>>> Uenal
>>
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>> xmail@xmailserver.org
>> http://xmailserver.org/mailman/listinfo/xmail
>>
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