input file handling blocks services

Continuing with the events that arose during a migration from Net Express 5.1 to Visual Cobol 10, a file opening error occurred. There is a file with eight records opened in input mode by several processes. The event was reviewed and found that when making this call, the service crashed. The reason is unclear since, as indicated, the file only contains eight records and is invoked in input mode.

The question is whether new or additional features for file management should be specified for Visual Cobol 10, since this crash and increased resource usage is very high.

I appreciate your comments and/or guidance in this regard.

Thank you very much.

What type of file is this, Indexed, sequential?

What do you mean by making this call?
Are you calling the file handler directly or using COBOL I-O statements?

What do you mean by crashed and what is the open error you are receiving?

Below are the answers.

What type of file is this? Indexed or sequential?

Answer: /

SELECT XXXXXXX ASSIGN TO "XXXXXXXX"
FILE STATUS IS XX-FILE-STAT
ACCESS MODE IS SEQUENTIAL
ORGANIZATION IS RELATIVE.

OPEN INPUT RPSPARAM

READ XXXXXXXX
AT END SET EOF-XXX TO TRUE
GO TO XXXX-EXIT
END-READ.

What do you mean by making this call?
Answer: / Invoke the file in INPUT mode

Are you calling the file driver directly or using COBOL I-O statements?
Answer: / Yes, this file is being called by multiple processes at once in INPUT mode.

What do you mean by "locked," and what is the open error you are receiving?
Response./ There are drops to zero transactions per second (TPS), queuing in all Bank queues, high response times and very high CPU consumption by the Kernel, this, for a few seconds and then without making changes the system returns to its normal situation.