Poll Interval, Msecs To wait before modification checks & Queue Name in CC

[Former Member]

Hi All,

I have 3 inter-related interfaces which is having 3 File Sender Communication channels as below charasteristics;

All 3 ccs are running on a common Queue Name inorder to cater the business scenario;

so PI should consume the files in the same sequance of files are copping into the locations;

(time gap between incoming files is around 1-3 secs)

Existing Values in Production system

IF086

Poll Interval 1 secs

Msecs To wait before modification checks 10000

Queue Name XI_QUE1

run sequance must be 1

IF913

Poll Interval 1 secs

Msecs To wait before modification checks 10000

Queue Name XI_QUE1

run sequance must be 2

IF084

Poll Interval 1 secs

Msecs To wait before modification checks 10000

Queue Name XI_QUE1

run sequance must be 3

we are having PI Alert email configured in the system;

when we get a big files into the locations, we get an unwanted Alert emails saying Error;

when I check PI, Overall file transfer is successful,

but we have the below error in the Message Display Audit log as

"Channel CC_Cxxx: Attempt to send file 'T201_200909141702' failed because file was modified during processing. 0 bytes expected, 1202248 bytes found. Trying to resend file"

but Overall file transfer is successful;

Does anyone can explain the reason for this error; ?

Also to remove this error & unwanted Alert email (since final status is successfull), I changed the Poll Interval to 3 for all 3 above CCs; Now I dont get the above error;

Do you think there might be a sequance issue due to this change;?

(time gap between incoming files is around 1-3 secs)

quite lengthy to explain sorry;

Appreciate your help please

thanks

Iver

[marksmyth]

Hello Iver

Question 3 in the note #821267 FAQ: XI 3.0 / PI 7.0/ PI 7.1 File Adapter, explains what is happening here. This answers your first question.

The file in question was being written to by another process when the file adapter attempted to send it. Depending on the length of time/amount of data that is being written to these files, increasing the polling interval to 3 seconds will help.

Regards

Mark

[Former Member]

Hi Mark

Thanks for your reply;

You have mentioned increasing the Poll Interval will resolve the issue; yes it resolves

but I cannot undestand why Poll Interval = 3 does not raise the error;

Can you explain this more please

many thanks

Iver