Symptoms
Some transactions are not showing WSM Payloads, even though WSM subscription was requested for them.
In /logs/wsmAgents/agent-flume_MonTier-WsmAgent-X.log (where X is the number of the wsm DPOD WSM agent you use), you will see the following message(s):
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Each transaction payload contains 4 parts: Front-End request, Back-End request, Back-End response and Front-End response, the size of the a single transaction payload equals to the size of all 4 parts combined.
The DataPower batches several transactions payloads together before sending them to DPOD .
The - The default is grouping 20 transactions together.
DPOD's WSM Agent sets a size limit for incoming requests, the default is 10MB10mb, meaning, so DPOD will drop any requests that are larger than 10MB10mb
Assuming you have a transaction with payload size of 1mb (300kb back-end and front-end requsets, and 200kb back-and and front-end responses), and the DataPower grouped 20 of them before sending them to DPOD, the total request size will be 20 x 1mb = 20mb , DPOD will drop this request and will not show the payloads.
Changing
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how many payloads the DataPower will batch together
You can effect the number of transactions the DataPower will send to DPOD in each batch and the batch size - the configuration is done in DPOD and not in the DataPower.
| Note |
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You will need to stop DPOD UI agent from the CLI before changing the following values, and start it again afterwards. |
edit /app/ui/MonTier-UI/conf/MonTierUI.conf,
the relevant configuration keys are:
wdp.wsm.push.max_elements - how many transactions the DataPower will group together (the default is 20)
wdp.wsm.push.max_envelope_siize size -max batch size that the DataPower will send to DPOD (the default is 10485760)
Changing the max batch size DPOD can handle
| Note |
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You will need to stop DPOD WSM agent from the CLI before changing the following values, and start it again afterwards. |
edit /app/flume/wsm_agents/conf/MonTier-WsmAgent-X/flume_wsm.conf (where X is the number of the WSM Agent you want to effect)
The relevant configuration key is:
MonTier-WsmAgent-1.sources.wsmHttpSource1.requestSizeLimitInBytes - max batch size that DPOD will process (the default is 10485760)
