Re: SPAM: Re: [PHP] intermittent session loss
| From: | Justin French | Date: | Thu, 16 Jan 2003 15:39:56 +0000 |
| Subject: | Re: SPAM: Re: [PHP] intermittent session loss | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-131877@lists.php.net to get a copy of this message | ||
on 17/01/03 1:24 AM, 1LT John W. Holmes (holmes072000@charter.net) wrote:
> Is there any kind of load balancing on your server?
It's a single server, so to the best of my knowledge, no.
> If you watch the session
> files in /tmp, are they getting erased?
No, because they reappear and page or two later. I confirmed this with a
simple incrementing session counter, and the results were bizarre. You
would expect the number to increase in sequence:
0,1,2,3,4,5,6,7,8,9,10...50
But instead, I got:
0,1,2,3,0,4,5,1,6,7,2,8,9,3,10,11,12,13,14,15,16,17,18,4
I can see two sessions in there... one that gets to 18, the other getting to
4.
Again, this is NOT a repeatable bug... right now, it just counted perfectly
up to 25 before I got bored... :)
Justin
> ---John Holmes...
>
> ----- Original Message -----
> From: "Justin French" <justin@indent.com.au>
> To: "php" <php-general@lists.php.net>
> Sent: Thursday, January 16, 2003 2:55 AM
> Subject: [PHP] intermittent session loss
>
>
>> Hi,
>>
>> I think I may have made some headway with my server problems. I loaded
> the
>> site onto another account within the same machine, and I can't seem to
>> replicate the "document contained no data" error at all.
>>
>> BUT I did notice that once I login (it says "you are logged in as justin"
>> across the top of the screen), if I refresh the same page a few times, it
>> will MOSTLY say "you are logged in as..." but OCCASIONALLY it says "click
>> here to login"...
>>
>> The server does use trans-sid, but in my case, it's using cookies... the
>> session doesn't get LOST (because it's "back" next time I refresh), but
>> I
> do
>> appear to be "logged out" until I refresh again.
>>
>> VERY strange.
>>
>> To investigate further, I turned off cookies, and tried again... after 5
> or
>> so refreshes, I lost the session ID out of the URL.
>>
>>
>> Whilst I can't repeat the problem on the original account, I have a
> feeling
>> these two issues are related.
>>
>>
>> What's likely to cause this?
>>
>>
>> Here's the Session section of phpinfo():
>>
>> --
>> Session Support enabled
>> Directive Local Value Master Value
>> session.auto_start Off Off
>> session.cache_expire 180 180
>> session.cache_limiter nocache nocache
>> session.cookie_domain no value no value
>> session.cookie_lifetime 0 0
>> session.cookie_path / /
>> session.cookie_secure Off Off
>> session.entropy_file /dev/urandom /dev/urandom
>> session.entropy_length 256 256
>> session.gc_maxlifetime 900 900
>> session.gc_probability 1 1
>> session.name PHPSID PHPSID
>> session.referer_check no value no value
>> session.save_handler mm mm
>> session.save_path /tmp /tmp
>> session.serialize_handler php php
>> session.use_cookies On On
>> session.use_trans_sid 1 1
>> --
>>
>> My LAN server's values (not compiled with trans-sid) are:
>> --
>> Session Support enabled
>> Directive Local Value Master Value
>> session.auto_start Off Off
>> session.cache_expire 180 180
>> session.cache_limiter nocache nocache
>> session.cookie_domain no value no value
>> session.cookie_lifetime 0 0
>> session.cookie_path / /
>> session.cookie_secure Off Off
>> session.entropy_file no value no value
>> session.entropy_length 0 0
>> session.gc_maxlifetime 1440 1440
>> session.gc_probability 1 1
>> session.name PHPSESSID PHPSESSID
>> session.referer_check no value no value
>> session.save_handler files files
>> session.save_path /tmp /tmp
>> session.serialize_handler php php
>> session.use_cookies On On
>> --
>>
>> Biggest difference I can see (not that I really know what I'm looking for)
>> is that locally, the save_handler is 'mm' (memory?), and on the server,
> it's
>> files. And the entropy stuff, which I don't understand :)
>>
>>
>> So, what could cause the session to drop (then kick back in again) by
> simply
>> refreshing the page a few times?
>>
>>
>> Many thanks in advance,
>>
>> Justin French
>>
>>
>>
>>
>>
>> --
>> PHP General Mailing List (http://www.php.net/)
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>>
>
> ---
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