RESOLVED BY implementing make_data_context
iinfo->make_data_context = context_convert_function;
. . .
void * context_convert_function( void *loop_context, netsnmp_iterator_info
*iinfo ) { Context_Data *datactx = SNMP_MALLOC_TYPEDEF(Context_Data);
if (!datactx)
I have a sub-agent which I'm hoping will handle snmpwalk requests. Presently
what is happening is that my get_first_data_point() reads a file (a QNX PPS
object to be specific), each line in the file represents on table row. Each
line is json-formatted and gets parsed to the field level. Rea
I am extending agent using mib2c iterate configuration.I want to fetch the
index so that i can query mysql database for example using command snmpget -v2c
-c public localhost SL-MIB::TEMP0.\"lab01\" I want to fetch lab01 . But i
cannot understand how _get_first_data_point and _get_next_data_p
Hi,
Thank you for your reply. Now I had known that the iterator helper
is inefficient for large tables and I should try other helpers for my apps.
And if the data requested is internal my agent, which kind of helper should
I choose instead of the iterator helper.
Looking forward to your reply.
B
On 17 March 2010 14:44, bai haoquan wrote:
> And if the data requested is internal my agent, which kind of helper should
> I choose instead of the iterator helper.
Personally, I'd recommend the 'table_tdata' helper
(as used by the 'mib2c.table_data.conf' template).
Possibly in conjunction with th
On 16 March 2010 09:10, Zhao Li H wrote:
> We have our data stored in a AVL tree, that makes the search very quickly.
> Is it ok to use raw table helper which is templated in mib2c.raw_table.conf?
Of course you can.
That does mean you'll have to do most of the processing from within
your table h
Shield
Sent: Monday, March 15, 2010 07:10 PM
To: bai haoquan
Cc: net-snmp-users@lists.sourceforge.net; Zhao Li H
Subject: Re: About net-snmp table iterator performance
On 15 March 2010 10:29, bai haoquan wrote:
> To my understanding, it will cause performance problem when there are
> mass o
On 15 March 2010 21:26, Kathy McLeod wrote:
>> There is a flag that can improve performance if the internal
>> indexing matches the SNMP ordering, but it's still probably
>> not the most efficient of the helpers.
>
> Where is the flag and when do I set it?
netsnmp_iterator_info *iinfo =
Hi -
In your reply to note in title, you said:
There is a flag that can improve performance if the internal
indexing matches the SNMP ordering, but it's still probably
not the most efficient of the helpers.
Where is the flag and when do I set it? I have the iterate_access code
working now so
On 15 March 2010 10:29, bai haoquan wrote:
> To my understanding, it will cause performance problem when there are mass
> of data.
Yes - the iterator helper is notoriously inefficient for large tables.
It's probably not a sensible choice if performance is an issue.
Use one of the other helpers i
2009/6/25 김은영 :
> Hmmm I wonder.
> Try adding the option "-CB" to the snmptable - does that make a difference?
> ==>
> I've got the right results for all queries with "-CB" option!
> Thank you very much!
>
> But, I'm still wondering why I've got wrong results when I queried without
> "-CB"
> snmpgetnext -v1 -c public localhost RADFINDER-MIB::rfcEngineAirIFType
> snmpgetnext -v2c -c public localhost RADFINDER-MIB::rfcEngineAirIFType
> snmpgetnext -v3 -u jupiter localhost RADFINDER-MIB::rfcEngineAirIFType
>
> RADFINDER-MIB::rfcEngineAirIFType.1 = INTEGER: WCDMA(30)
>
2009/6/25 김은영 :
> snmpgetnext -v1 -c public localhost RADFINDER-MIB::rfcEngineAirIFType
> snmpgetnext -v2c -c public localhost RADFINDER-MIB::rfcEngineAirIFType
> snmpgetnext -v3 -u jupiter localhost RADFINDER-MIB::rfcEngineAirIFType
>
> RADFINDER-MIB::rfcEngineAirIFType.1 = INTE
Hi...
> What are the access control settings in your snmpd.conf file?
> ==>
> These are the part of the settings.
>
> com2sec private localhost private
> rocommunity public
> rwcommunity private
>
Urghh!
No - don't mix "com2sec" and "r?community" direct
2009/6/24 김은영 :
> What are the access control settings in your snmpd.conf file?
> ==>
> These are the part of the settings.
>
> com2sec private localhost private
> rocommunity public
> rwcommunity private
>
Urghh!
No - don't mix "com2sec" and "r?communi
First of all, thank you for your rapid reply, Dave.
> There are 3 tables in my MIB and I implemented the sub-agent to retrieve
> these tables through the table iterator helper. (mib2c.iterate.conf)
>
> When I get the table via snmp v1, it works well.
>
> But if I try to get tho
2009/6/24 김은영 :
> There are 3 tables in my MIB and I implemented the sub-agent to retrieve
> these tables through the table iterator helper. (mib2c.iterate.conf)
>
> When I get the table via snmp v1, it works well.
>
> But if I try to get those via snmp v2c or v3, the val
Hi,
I have a couple of questions/problems with the iterator helper in my
Agent code (I've been using Net-SNMP 5.3.0.1). Hopefully someone can
help me out please.
- I've been trying to use the "free_loop_context_at_end" function
callback, but this only seems to get called when a simple "get" i
Hi All,
i am facing an issue regarding implementation of tables using
mib2c.iterate.conf. i have created code using this config file. I have added
my function to get data from kernel into a link list. I need to set up the
my_loop_context and my_data_context to handle rows. The rows corresponds to
On 17/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
> So do the queries get serialized (one serviced at a time)?
Mostly, yes.
I believe that "delegated" GET* requests (including those passed on to
subagents) can be processed in parallel. But any request handled by
the main agent (and all SET
I didn't get any response for this, so I am resending just in case...
Thanks,
Sachin
On Mon, 2006-09-18 at 12:12 +0530, Sachin Mishra wrote:
> In my subagent I have data which is already sorted w.r.t. to index.
> Should I use iterate.conf or array-user.conf to generate the subagent
> template
In my subagent I have data which is already sorted w.r.t. to index.
Should I use iterate.conf or array-user.conf to generate the subagent
template code. Is there anyu example of array-user.conf?
The index for my table is OCTET-STRING. While using iterate.conf, if I
specify the SORTED flag, it c
So do the queries get serialized (one serviced at a time)?
Dave Shield escribió:
On 13/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
Yet another question: does the iterator code get executed in multiple
threads, that is, do I have to take care about mutual exclusion while
acc
On 13/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
> Yet another question: does the iterator code get executed in multiple
> threads, that is, do I have to take care about mutual exclusion while
> accessing data structures for example?
The Net-SNMP agent isw not (currently) capable of multi-
Yet another question: does the iterator code get executed in multiple
threads, that is, do I have to take care about mutual exclusion while
accessing data structures for example?
Sebastian-
Sebastian Bello escribió:
Sorry, I apologize to all, my fault! A bug in my code! :(
Thanks for t
Sorry, I apologize to all, my fault! A bug in my code! :(
Thanks for the assistance!
Sebastian-
Dave Shield escribió:
On 11/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
Returning NULL isn't working for me; even the following code crashes snmpd
(it shouldn't, right?):
On 11/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
>
> Returning NULL isn't working for me; even the following code crashes snmpd
> (it shouldn't, right?):
It shouldn't - no.
Try running the agent under a debugger, and see where it falls over.
> netsnmp_variable_list *moTable_get_first_da
Returning NULL isn't working for me; even the following code crashes
snmpd (it shouldn't, right?):
netsnmp_variable_list
*moTable_get_first_data_point(void **my_loop_context, void
**my_data_context,
netsnmp_variable_list *put_index_data,
nets
On 11/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
> In the "End of table" code portion, how should the function return
NULL.
Dave
-
Using Tomcat but need to do more? Need to support web services, security?
Get stuff d
An additional question. Consider the following code:
netsnmp_variable_list *moTable_get_next_data_point(void
**my_loop_context, void **my_data_context,
netsnmp_variable_list *put_index_data,
netsnmp_iterator_info *mydata)
{
netsnmp_variable
Thanks Dave!
Dave Shield escribió:
> On 07/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
>> 1- the data from the MIB table will be collected periodically from other
>> processes, and be probably cached for some time; is table_iterator the
>> right choice?
>
> It can certainly be used that way.
On 07/09/06, Sebastian Bello <[EMAIL PROTECTED]> wrote:
> 1- the data from the MIB table will be collected periodically from other
> processes, and be probably cached for some time; is table_iterator the
> right choice?
It can certainly be used that way.
mib2c -S cache=1 -c mib2c.iterator.con
Any hint on this?
Sebastian Bello escribió:
> Hi all,
>
> I'm trying to implement a table using mib2c with 'mib2c.iterate.conf'.
> I read the doc from 'table_iterator.c' but still have some questions:
>
> 1- the data from the MIB table will be collected periodically from other
> processes, and be
Hi all,
I'm trying to implement a table using mib2c with 'mib2c.iterate.conf'.
I read the doc from 'table_iterator.c' but still have some questions:
1- the data from the MIB table will be collected periodically from other
processes, and be probably cached for some time; is table_iterator the
ri
Dear Dave, thanks for your answer.
> How does each subagent decide which rows they will support?
The subagent asks with register_int_index() the masteragent for its
index.
> Can rows be created dynamically - if so, how?
No.
> You won't be able to register the whole table in the usual manner.
>
On Wed, 2006-02-01 at 17:46 +0100, Keller, Beat wrote:
> We are using net-snmp 5.3.0.1 and have a shared table within different
> subagents ... Is it possible to solve this problem with the
> table_iterator?
It should be possible to implement this using the table_iterator
(though it might
Hi,
We are using net-snmp 5.3.0.1 and have a shared table within different
subagents (e.g. Subagent 1 has row with index = 1, Subagent 2 has row
with index = 2, etc...). Is it possible to solve this problem with the
table_iterator? We always get the problem with duplicated registering.
Thanks fo
Title: Help required for table iterator
Hi All,
I am new to net-snmp.
I generated code using mib2c.iterate.conf for adslMIB. In create entry I am hardcoding the node value(for testing purpose only.) The problem is that
1. It is retriving first row only. and i am facing problem in the
Thanks for the response Robert!
MV
Robert Story wrote:
On Tue, 09 Aug 2005 14:30:20 -0400 Mike wrote:
MV> That is, for every iteration through the table rows, the entire row is
MV> copied into the agent using snmp_set_var_value; and the entire table is
MV> iterated over before the 'handler' m
On Tue, 09 Aug 2005 14:30:20 -0400 Mike wrote:
MV> That is, for every iteration through the table rows, the entire row is
MV> copied into the agent using snmp_set_var_value; and the entire table is
MV> iterated over before the 'handler' method is called and the requested
MV> variable is returned
Hello there,
(we are migrating from UCD to NET-SNMP and have some implemetation
questions)
I was looking at the behaviour of the MibII/tcpTable module in the
source code, using it to try and understand the table-iterator pattern
used in the new Net-SNMP API. What I found was, everytime a
On Wed, 2 Mar 2005 22:38:51 -0500 Chuck wrote:
CC> I am using Net-snmp 5.0.8 on redhat Enterprise WS 3 (2.4 kernel).
CC> I want my agent implemented as a separate agentX subagent.
I'd recommend upgrading to at least 5.1.2 if you are using AgentX. Or at least
5.0.9, which is the most recent 5.0.x r
@lists.sourceforge.net
Subject: Questions to the table iterator helpers
I have seen a question asking more detailed explanation on the table iterate
helpers posted on Wednesday March 02 with the title
"Questions: building MIB agent using table iterator helpers (Chuck Cottrill)".
I
I have seen a question asking more detailed explanation on
the table iterate helpers posted on Wednesday March 02 with the title “Questions:
building MIB agent using table iterator helpers (Chuck Cottrill)”. I am
having similar problems and questions with net-snmp 5.0.9. Looking forward to
I am using Net-snmp 5.0.8 on redhat Enterprise WS 3 (2.4 kernel).
I want my agent implemented as a separate agentX subagent.
I built an agent that provides access to my MIB, which contains Read-Only
tables. I get responses to my snmpwalk, so I have everything connected and
functioning.
I am imple
> On Wed, 7 Jul 2004 18:28:45 +0100, <[EMAIL PROTECTED]> said:
holger> Unfortunately my table could return far more than 120 rows and
holger> I am afraid this n-squared behaviour will bring my processor
holger> to it's knees. Well, I guess I just have to live with it.
1) make sure you are usi
> From: Dave Shield
> Sent: 09 July 2004 09:38
> > The data I am accessing is in a shared memory area. It is
> > already ordered but might have gaps in it (ie. some rows
> > might be missing).
>
> The gaps are no problem, but the iterator helper doesn't
> assume that the list is sorted properl
> The data I am accessing is in a shared memory area. It is already ordered
> but might have gaps in it (ie. some rows might be missing).
The gaps are no problem, but the iterator helper doesn't assume that the
list is sorted properly, so will look through the whole thing for each
individual reque
On Thu, 8 Jul 2004 08:48:37 +0100 [EMAIL PROTECTED] wrote:
HKC> > If you don't mind caching, then the stash cache helper would help.
HKC> > There a lots of different ways of optimizing, using various
HKC> > different handlers
HKC> > and helpers. It just depends on your data, and how much extra
HK
> From: Robert Story (Users)
> Sent: 08 July 2004 01:25
>
> On Wed, 7 Jul 2004 18:28:45 +0100 holger wrote:
> HKC> > I have coded my own MIB module based on a stub file that was
> HKC> > originally auto-generated by mib2c using mib2c.iterate.conf,v
> HKC> > 5.5. The module contains a table with
On Wed, 7 Jul 2004 18:28:45 +0100 [EMAIL PROTECTED] wrote:
HKC> > I have coded my own MIB module based on a stub file that was
HKC> > originally auto-generated by mib2c using mib2c.iterate.conf,v
HKC> > 5.5. The module contains a table with 7 columns and currently
HKC> > 120 rows. [...] I was qu
> From: Holger
> Sent: 06 July 2004 21:31
> I have coded my own MIB module based on a stub file that was
> originally auto-generated by mib2c using mib2c.iterate.conf,v
> 5.5. The module contains a table with 7 columns and currently
> 120 rows. The first 3 columns are table indexes and defined
Hi,
I have coded my own MIB module based on a stub file that was originally auto-generated
by mib2c using mib2c.iterate.conf,v 5.5. The module contains a table with 7 columns
and currently 120 rows. The first 3 columns are table indexes and defined as
not-accessible. The table seems to be worki
53 matches
Mail list logo
