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Memory Corruption Occurring In PCM_OP_ACT_USAGE For Large Flist (Doc ID 2384993.1)

Last updated on APRIL 30, 2018

Applies to:

Oracle Communications Billing and Revenue Management - Version 7.5.0.18.0 and later
Information in this document applies to any platform.

Symptoms

ISSUE
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There is a memory issue occurring when PCM_OP_ACT_USAGE opcode is called. This issue appears to manifest itself only when the input flist is over a certain memory size, around 40K and when it runs PCM_OP_ACT_USAGE for a single event but it can happen randomly when run during billing.

Note:
The problem with this memory corruption is that it has more apparent side effects later on the process. The call to fm_act_read_billinfo appears to return the accounting date for use after rating to decide which item the rated event must be allocated to. When the memory corruption occurs, the PIN_FLD_END_T of the event that is used to read the billinfo is 0, instead of the actual PIN_FLD_END_T of the event (example, Dec 31 23:59:59 2015). This means that the ACTG values output from op_subscription_get_actg_dates start from 1-Jan-1970 instead of Jan 1 00:00:00 2015 (as it can be seen on the ERROR section below).

These accounting dates are then used in op_bill_item_assign input flist later after post_rating has occurred and as a consequence, the event is assigned to the next bill instead of the current bill resulting in an incorrect bill value for the current bill.


ERROR
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STEPS
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The issue can be reproduced at will with the following steps:
1. login to BRM machine
2. use the testnap utility
3. run PCM_OP_ACT_USAGE using a huge flist (around 41K)


Cause

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