| Title: | DECmcc user notes file. Does not replace IPMT. |
| Notice: | Use IPMT for problems. Newsletter location in note 6187 |
| Moderator: | TAEC::BEROUD |
| Created: | Mon Aug 21 1989 |
| Last Modified: | Wed Jun 04 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 6497 |
| Total number of notes: | 27359 |
A customer in the UK that develop their own fm's am's on DECmcc V1.3
using Ultrix V4.3 have observed the following behaviour.
When the environment variable 'mcc_dict_cache' is set the system start
to leak memory. As soon as they unset the variable the memory leak
stops.
Tracing back to where this environment variable is set they found
it is called up from 'setenv_generic.csh' . Within the file there
is a comment preceding the part where these variables are set. It
basically states the following section is defining the environment
for mcc.
What is the purpose of the variable mcc_dict_cache ??
Will unsetting this variable cause any problems ??
Why should it be causing a memory leak ??
What is the file setenv_generic.csh for ???
Gary Lowe MCS Nets&Comms
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 5671.1 | TOOK::MINTZ | Erik Mintz | Mon Oct 18 1993 17:56 | 10 | |
The file 'setenv_generic.csh' is not shipped as part of any DECmcc base subset. If that file is installed by a layered product, you should be able to identify which by issuing: grep setenv_generic *.inv from the directory /usr/etc/subsets -- Erik | |||||
| 5671.2 | Trying TeMIP group | PLUNDR::LOWEG | WANTED!! A modern day Robin Hood. | Tue Oct 19 1993 05:23 | 10 |
Thanks Erik, I have spoken to the customer since reading your reply,
and I am told that it is part of TeMIP.
I have a contact for the TeMIP so I will send a mail asking if
this variable can be explained and feed the results back here
when I have an answer.
Gary Lowe MCS Nets&Comms.
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| 5671.3 | Nothing yet. | PLUNDR::LOWEG | WANTED!! A modern day Robin Hood. | Tue Oct 19 1993 13:44 | 8 |
I have also cross posted this note to the TeMIP conference, note 124.
No replies yet from notes or mail..
Gary.
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| 5671.4 | Answer cross posted from TeMIP conference. | PLUNDR::LOWEG | WANTED!! A modern day Robin Hood. | Thu Oct 21 1993 11:02 | 49 |
The following text is the answer I received from the TeMIP notes
conference. As you will read, the bottom line is that there is
bug causing memory leak which I will have to CLD..
<<< TAEC::DISK$HOGGAR_SYS:[NOTES$LIBRARY]TEMIP.NOTE;1 >>>
-< Telecom. Management Information Platform conference >-
================================================================================
Note 124.1 What is function of variable mcc_dict_cache . 1 of 2
TAEC::WEBER 37 lines 19-OCT-1993 19:03
-< Some responses >-
--------------------------------------------------------------------------------
Hello Gary,
I can answer some of your questions.
What is the file setenv_generic.csh for ???
>> This file is for use for TeMIP DEMO ONLY.
>> If you look at the file, you will see that some variables, like
>> MCC_MAPS point to private locations.
>> So if your client has the setenv_generic.csh, it means that they
>> were/are running TeMIP DEMO. Or they have a need to point on some
>> specific location in the filesystem, in which case, you should
>> consider this file as an example to be customized.
What is the purpose of the variable mcc_dict_cache ??
>> This is a MCC environment variable. From what I know, it is used to
>> load mcc dictionary data into virtual memory to limit disk access
>> when accessing dictionary data.
>> If your client is using this variable and this causes memory leak,
>> then you should enter a CLD to DECmcc V1.3.
Will unsetting this variable cause any problems ??
>> Apparently, it may impact performance. But it does not prevent
>> DECmcc to work correctly. If I can get more details,
>> I'll let you aware. However, DECmcc notesfile is the appropriate
>> place where to put your question.
Why should it be causing a memory leak ??
>> BUG, certainely.
Please feel free to post that response in DECMcc notesfiles.
Best regards,
Florence
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