6 Feb
2023
6 Feb
'23
10:08 a.m.
Hello,
https://www.kamailio.org/docs/modules/devel/modules/htable#htable.p.htable says for
modparam('htable', 'htable', '…autoexpire … updateexpire…')
autoexpire -time in seconds to delete an item from a hash table if no update was done to
it. If is missing or set to 0, the items won't expire.
updateexpire - if set to 1 (default), the time until expiration of an item is reset when
that item is updated. Certain uses of htable may dictate that
updates should not reset the expiration timeout, however, in which case this attribute can
be set to 0.
My reading is that, when a value is updated and autoexpire is positive, autoexpire will
reset the timer, but updateexpire may or may not reset the
same timer.
That is:
modparam('htable', 'htable', 'a=>autoexpire=5;updatedelete=1')
modparam('htable', 'htable', 'b=>autoexpire=5;updatedelete=0')
If b was not updated for 5s, will it be removed, as the documentation for autoxpire
suggests, irrespective of updatedelete?
Greetings
Dilyan
6 Feb
6 Feb
11:17 a.m.
Hello,
there is no updatedelete in the htable module.
The updateexpire should be set to 0 when you want the item to be removed
always after the expire interval. Otherwise, an update to the item
result in prolonging its lifetime with another expire interval.
Cheers,
Daniel
On 06.02.23 08:08, Дилян Палаузов wrote:
Hello,
https://www.kamailio.org/docs/modules/devel/modules/htable#htable.p.htable says for
modparam('htable', 'htable', '…autoexpire … updateexpire…')
autoexpire -time in seconds to delete an item from a hash table if no update was done to
it. If is missing or set to 0, the items won't expire.
updateexpire - if set to 1 (default), the time until expiration of an item is reset when
that item is updated. Certain uses of htable may dictate that
updates should not reset the expiration timeout, however, in which case this attribute
can be set to 0.
My reading is that, when a value is updated and autoexpire is positive, autoexpire will
reset the timer, but updateexpire may or may not reset the
same timer.
That is:
modparam('htable', 'htable',
'a=>autoexpire=5;updatedelete=1')
modparam('htable', 'htable',
'b=>autoexpire=5;updatedelete=0')
If b was not updated for 5s, will it be removed, as the documentation for autoxpire
suggests, irrespective of updatedelete?
Greetings
Dilyan
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Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - June 5-7, 2023 - www.kamailioworld.com
11:36 a.m.
Hello Daniel,
thanks for your answer. This still confuses me:
autoexpire -time in seconds to delete an item from a
hash table if no update was done to it. If is missing or set to 0, the items won't
expire.
Has autoexpire something to do with last update? Do I understand correctly that:
- autoexpire determines if items are removed in general, independent of the last update,
and
- updateexpire sets, whether last update is relevant when deciding on removing an item?
If my understanding is correct, then the word “update” shall be removed from the
description of “autoexpire”.
Example:
modparam('htable', 'htable', 'a=>autoexpire=5;updateexpire=1')
modparam('htable', 'htable', 'b=>autoexpire=5;updateexpire=0')
X="Y" is inserted into a and b:
$sht(a=>X) = "Y"
$sht(b=>X) = "Y"
Two seconds later a[X] and b[X] are updated to 'Z'
$sht(a=>X) = "Z"
$sht(b=>X) = "Z"
Three seconds later b[X] is removed, and a[X] is kept.
Greetings
Dilyan
-----Original Message-----
From: Daniel-Constantin Mierla <miconda(a)gmail.com>
Reply-To: miconda(a)gmail.com
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>rg>, Дилян
Палаузов <dpa-kamailio(a)bapha.be>
Subject: Re: [SR-Users] htable: autoexpire vs updatedelete
Date: 02/06/2023 10:17:03 AM
Hello,
there is no updatedelete in the htable module.
The updateexpire should be set to 0 when you want the item to be removed
always after the expire interval. Otherwise, an update to the item
result in prolonging its lifetime with another expire interval.
Cheers,
Daniel
On 06.02.23 08:08, Дилян Палаузов wrote:
> Hello,
>
> https://www.kamailio.org/docs/modules/devel/modules/htable#htable.p.htable says for
>
> modparam('htable', 'htable', '…autoexpire … updateexpire…')
>
autoexpire -time in seconds to delete an item from a
hash table if no update was done to it. If is missing or set to 0, the items won't
expire.
> updateexpire - if set to 1 (default), the time until expiration of an item is
reset when that item is updated. Certain uses of htable may dictate
> that
> updates should not reset the expiration timeout, however, in which case this
attribute can be set to 0.
>
>
> My reading is that, when a value is updated and autoexpire is positive, autoexpire
will reset the timer, but updateexpire may or may not reset the
> same timer.
>
> That is:
>
> modparam('htable', 'htable',
'a=>autoexpire=5;updatedelete=1')
> modparam('htable', 'htable',
'b=>autoexpire=5;updatedelete=0')
>
> If b was not updated for 5s, will it be removed, as the documentation for autoxpire
suggests, irrespective of updatedelete?
>
> Greetings
> Dilyan
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
> To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to the sender!
> Edit mailing list options or unsubscribe:
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Daniel-Constantin Mierla -
Дилян Палаузов