XCOMT0322E Unable to write to check point file. Guardian Error #10

Products

• XCOM Data Transport

Issue/Introduction

We're receiving the following message when a transfer is initiated from NonStop to a remote system

Unable to write to check point file. Guardian Error #10 REQUEST # 012037

or 

XCOMT0322E Unable to write to check point file. Guardian Error #10

 

It's happening randomly with all our transfers. When you retry the transfer, works perfectly.

 

What is the meaning of the message?

Environment

Release : 11.1

Component : CA XCOM Data Transport for Hp NonStop

Cause

Guardian error #10 means an attempt to write a record to a file with a key that already exists. In this case the file is the checkpoint file and the key is the transfer id. 

In other words, it states that REQUEST # 012037 already exists in the checkpoint file.

Resolution

XCOM has a checkpoint file to which it will write checkpoint request for incoming or outgoing transfers.  The Checkpoint/restart feature allows you to restart a failed transfer from the last confirmed checkpoint so you do not have to requeue a failed transfer from the beginning. 

In some cases those entries may not be removed/deleted and will stay in the file. If that is the case, then the way to prevent the message is to recreate the checkpoint file. To do that you can:

1.  Make sure no transfers are occurring.

2. Issue the following commands:

 FUP PURGE CKPTFIL
 FUP PURGE CKPTALT
 FUP /IN MKCKPT/

Note: The commands are documented in the manual

3. At that point the file will be ready.

 

Additional Information

In order to find the meaning of any Guardian Error you can issue command "ERROR nn" from your NonStop system.