In OBAS 4.3.2/4.3.3 task "Collect changed billing data for Report Manager" fails randomly which results in incomplete revenue forecast (some subscriptions are missing). There are many "Out of memory!" errors in
/var/log/hspcd/error_log but memory seems to be enough.
There are many errors in taskman.log:
/var/log/taskman.log --->8--- [2013/08/20 08:56:33] [INFO]  [HSPC::Taskman::call_task] ===> Executing task #30 [HSPC::MT::Billing::Reports->collect_report_data] [undef] [2013/08/20 11:50:07] [ERROR]  [HSPC::Taskman::call_task] <=== Task #30 failed locally: 500 Server closed connection without sending any data back at /usr/lib/perl5/site_perl/5.8.8/HSPC/Taskman.pm line 288 ---8<---
The problem is fixed since OBAS 4.3.4, bug is PBAS-28951.
To resolve the issue, please upgrade OBAS to the latest version.