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Posted to server-user@james.apache.org by "USHAKOV, Sergey" <s....@chemitech.ru> on 2011/04/17 11:15:59 UTC
IMAP connection speed
Hi all,
I am running JAMES snapshot in test semi-production ("smart host") mode for
a while already, and my impression is that the speed of IMAP connection is
unusually slow. I takes seconds for the mail client to get a list of several
messages in a box. It takes seconds to get even a small message loaded. It
is quite common for mail client to freeze and then complain on timeout on
IMAP server. This happens even over LAN connection, without mentioning VPN.
I've got a hMailServer instance running historically on the same server
(using other TCP ports), and its IMAP behavior is quite different. It shows
good speed even over VPN.
What may be the reason? Am I the only person observing this issue? Are there
any hidden settings to be fine-tuned? What might be the right approach to
profiling and troubleshooting?
Thanks in advance,
Sergey
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Re: IMAP connection speed
Posted by Eric Charles <er...@apache.org>.
Do you also feel slow on POP3?
Tks,
- Eric
On 17/04/2011 11:42, Eric Charles wrote:
> Hi,
>
> As a user, I don't "feel" James slow.
> The out-of-the-box params should be fine for a normal usage.
> (did you check via telnet ? do the defined hostnames correctly resolve ?)
>
> There are quite some changes around in IMAP atm, this MAY impact (I
> don't say it does :)
>
> We could also say that the default embedded derby is not the fastest
> database in the world, but for low volumes, this does not make any
> difference IMHO.
>
> It would be good to have measures:
> - http://imapwiki.org/ImapTest is a possible tool.
> - We've got pure functional mailbox-integration-tests, but nothing on
> performance. I created the MPT-3 (Write MPT JMeter Plugin) but it needs
> to invest time in first consolidate the Apache James MPT project and
> then develop that jMeter plugin.
>
> Tks,
> - Eric
>
>
> On 17/04/2011 11:15, USHAKOV, Sergey wrote:
>> Hi all,
>>
>> I am running JAMES snapshot in test semi-production ("smart host")
>> mode for
>> a while already, and my impression is that the speed of IMAP
>> connection is
>> unusually slow. I takes seconds for the mail client to get a list of
>> several
>> messages in a box. It takes seconds to get even a small message
>> loaded. It
>> is quite common for mail client to freeze and then complain on timeout on
>> IMAP server. This happens even over LAN connection, without mentioning
>> VPN.
>>
>> I've got a hMailServer instance running historically on the same server
>> (using other TCP ports), and its IMAP behavior is quite different. It
>> shows
>> good speed even over VPN.
>>
>> What may be the reason? Am I the only person observing this issue? Are
>> there
>> any hidden settings to be fine-tuned? What might be the right approach to
>> profiling and troubleshooting?
>>
>> Thanks in advance,
>> Sergey
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
>> For additional commands, e-mail: server-user-help@james.apache.org
>>
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Re: IMAP connection speed
Posted by Eric Charles <er...@apache.org>.
Hi,
As a user, I don't "feel" James slow.
The out-of-the-box params should be fine for a normal usage.
(did you check via telnet ? do the defined hostnames correctly resolve ?)
There are quite some changes around in IMAP atm, this MAY impact (I
don't say it does :)
We could also say that the default embedded derby is not the fastest
database in the world, but for low volumes, this does not make any
difference IMHO.
It would be good to have measures:
- http://imapwiki.org/ImapTest is a possible tool.
- We've got pure functional mailbox-integration-tests, but nothing on
performance. I created the MPT-3 (Write MPT JMeter Plugin) but it needs
to invest time in first consolidate the Apache James MPT project and
then develop that jMeter plugin.
Tks,
- Eric
On 17/04/2011 11:15, USHAKOV, Sergey wrote:
> Hi all,
>
> I am running JAMES snapshot in test semi-production ("smart host") mode for
> a while already, and my impression is that the speed of IMAP connection is
> unusually slow. I takes seconds for the mail client to get a list of
> several
> messages in a box. It takes seconds to get even a small message loaded. It
> is quite common for mail client to freeze and then complain on timeout on
> IMAP server. This happens even over LAN connection, without mentioning VPN.
>
> I've got a hMailServer instance running historically on the same server
> (using other TCP ports), and its IMAP behavior is quite different. It shows
> good speed even over VPN.
>
> What may be the reason? Am I the only person observing this issue? Are
> there
> any hidden settings to be fine-tuned? What might be the right approach to
> profiling and troubleshooting?
>
> Thanks in advance,
> Sergey
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
> For additional commands, e-mail: server-user-help@james.apache.org
>
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running James as a Windows 64-bit service
Posted by "Stotz, Lisa" <ls...@harris.com>.
Does anyone have experience running James as a Windows service on a 64-bit machine?
Thanks in advance,
Lisa
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Re: IMAP connection speed
Posted by Eric Charles <er...@apache.org>.
Hi Sergey,
Outlook Express (and maybe other clients) can give issues for some
operation (move mail from folder,...).
The safer to start is to use e.g. thunderbrid.
Tks,
- Eric
On 17/04/2011 21:11, USHAKOV, Sergey wrote:
> Hi again and thanks to all who responded.
>
> To start with, I'll get the latest snapshot installed and share my
> impressions with you.
>
> No, I did not try POP3 on JAMES yet. I'll also maybe try some telnet
> scripting for IMAP and share the results too...
>
> BTW, I've got the mailboxes in PostgeSQL, not in Derby...
>
> Thanks again,
> Sergey
>
>
> ----- Original Message ----- From: "Norman Maurer" <no...@apache.org>
> To: "James Users List" <se...@james.apache.org>
> Cc: "USHAKOV, Sergey" <s....@chemitech.ru>
> Sent: Sunday, April 17, 2011 9:14 PM
> Subject: Re: IMAP connection speed
>
>
>> Hi there,
>>
>> latest changes in imap code should really speed up things. But for
>> better performance you should prolly switch from derby to something
>> else. Like Mysql..
>>
>> Bye,
>> Norman
>>
>>
>> 2011/4/17 USHAKOV, Sergey <s....@chemitech.ru>:
>>> Hi all,
>>>
>>> I am running JAMES snapshot in test semi-production ("smart host")
>>> mode for
>>> a while already, and my impression is that the speed of IMAP
>>> connection is
>>> unusually slow. I takes seconds for the mail client to get a list of
>>> several
>>> messages in a box. It takes seconds to get even a small message
>>> loaded. It
>>> is quite common for mail client to freeze and then complain on
>>> timeout on
>>> IMAP server. This happens even over LAN connection, without
>>> mentioning VPN.
>>>
>>> I've got a hMailServer instance running historically on the same server
>>> (using other TCP ports), and its IMAP behavior is quite different. It
>>> shows
>>> good speed even over VPN.
>>>
>>> What may be the reason? Am I the only person observing this issue?
>>> Are there
>>> any hidden settings to be fine-tuned? What might be the right
>>> approach to
>>> profiling and troubleshooting?
>>>
>>> Thanks in advance,
>>> Sergey
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
>>> For additional commands, e-mail: server-user-help@james.apache.org
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
>> For additional commands, e-mail: server-user-help@james.apache.org
>>
>
>
> ---------------------------------------------------------------------
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Re: IMAP connection speed
Posted by "USHAKOV, Sergey" <s....@chemitech.ru>.
Hi again and thanks to all who responded.
To start with, I'll get the latest snapshot installed and share my
impressions with you.
No, I did not try POP3 on JAMES yet. I'll also maybe try some telnet
scripting for IMAP and share the results too...
BTW, I've got the mailboxes in PostgeSQL, not in Derby...
Thanks again,
Sergey
----- Original Message -----
From: "Norman Maurer" <no...@apache.org>
To: "James Users List" <se...@james.apache.org>
Cc: "USHAKOV, Sergey" <s....@chemitech.ru>
Sent: Sunday, April 17, 2011 9:14 PM
Subject: Re: IMAP connection speed
> Hi there,
>
> latest changes in imap code should really speed up things. But for
> better performance you should prolly switch from derby to something
> else. Like Mysql..
>
> Bye,
> Norman
>
>
> 2011/4/17 USHAKOV, Sergey <s....@chemitech.ru>:
>> Hi all,
>>
>> I am running JAMES snapshot in test semi-production ("smart host") mode
>> for
>> a while already, and my impression is that the speed of IMAP connection
>> is
>> unusually slow. I takes seconds for the mail client to get a list of
>> several
>> messages in a box. It takes seconds to get even a small message loaded.
>> It
>> is quite common for mail client to freeze and then complain on timeout on
>> IMAP server. This happens even over LAN connection, without mentioning
>> VPN.
>>
>> I've got a hMailServer instance running historically on the same server
>> (using other TCP ports), and its IMAP behavior is quite different. It
>> shows
>> good speed even over VPN.
>>
>> What may be the reason? Am I the only person observing this issue? Are
>> there
>> any hidden settings to be fine-tuned? What might be the right approach to
>> profiling and troubleshooting?
>>
>> Thanks in advance,
>> Sergey
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
>> For additional commands, e-mail: server-user-help@james.apache.org
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
> For additional commands, e-mail: server-user-help@james.apache.org
>
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Re: IMAP connection speed
Posted by Norman Maurer <no...@apache.org>.
Hi there,
latest changes in imap code should really speed up things. But for
better performance you should prolly switch from derby to something
else. Like Mysql..
Bye,
Norman
2011/4/17 USHAKOV, Sergey <s....@chemitech.ru>:
> Hi all,
>
> I am running JAMES snapshot in test semi-production ("smart host") mode for
> a while already, and my impression is that the speed of IMAP connection is
> unusually slow. I takes seconds for the mail client to get a list of several
> messages in a box. It takes seconds to get even a small message loaded. It
> is quite common for mail client to freeze and then complain on timeout on
> IMAP server. This happens even over LAN connection, without mentioning VPN.
>
> I've got a hMailServer instance running historically on the same server
> (using other TCP ports), and its IMAP behavior is quite different. It shows
> good speed even over VPN.
>
> What may be the reason? Am I the only person observing this issue? Are there
> any hidden settings to be fine-tuned? What might be the right approach to
> profiling and troubleshooting?
>
> Thanks in advance,
> Sergey
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: server-user-unsubscribe@james.apache.org
> For additional commands, e-mail: server-user-help@james.apache.org
>
>
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