CRM Inbound queue - Running state

Question

Hi
Am downloading Customers from ECC to CRM through a request (R3AR4). The inbound queues in CRM are in Running state for very long time and they are not actually being processed. They dont have any errors in them. The detailed status message is "Transaction executing" for the first queue and the remaining as "Transaction Recorded".
Can anyone tell me what could be the reason for this and how to resolve this?
Thanks
Karthik

Answer 1

Karthik,
The block size defines the number of objects (in your case customers/business partners) to be stored in one queue entry/LUW. If this is too high the transfer from R/3 to CRM will be much lower and, once CRM starts processing the queue entry/LUW  will try to process all objects (creating an individual queue - not queue entry - for each object in the inbound queue) in the entry at once leading to a huge decrease in system performance. In general you can say that a higher block size will of course lead to faster processing but will decrease system performance significantly during that time and might even lead to the fact that no one is able to login because all dialog processes are in use.
So, when the queue entry with block size 1000 is 'unpacked' or processed it will create immediately 1000 queues (not queue entries but individual queues containing the object number and object name as queue name eg R3AS_CUSTOMER_MAIN_<number>) in the inbound queue. This of course creates a huge bottleneck in the CRM system.
The effect on the increase/decrease cannot be predicted as it depends on the power of the machine and various other settings (like in RZ12). However, in the CRM master guide (installation guide) and on OSS you'll find some useful formulas/guidelines to calculate all those parameters.
Hope I cleared it out for you,
Regards,
Joost