Netezza Puredata Backup failure with Error: NZ-02465: Stream unresponsive after 300 seconds, operation aborted. Check concurrency limits on server.

I have seen similar kind issue in Puredata system 7.2.0.5

Basically, Netezza backup processes check that number of streams requested is supported by the backup tool. If Yes,  then only backup process starts.

If the check fails due to connection timeouts, the nzbackup process exits with the following

Error Message(NZ-02465): Stream unresponsive after 300 seconds, operation aborted. Check concurrency limits on server.

Cause:- It may  happens due to Media server which is associated with storage taking more than 5 min  to acquire the necessary mounts, If its taking more than 5 min(default 300sec).

Solution:-

Change the timeout to 600 seconds ( from the default of 300 seconds)

Method:-1

$ nzsystem pause

Are you sure you want to pause the system (y|n)? [n] y

$ nzsystem showRegistry | grep bnrStreamInitTimeoutSec

host.bnrStreamInitTimeoutSec      = 300

$ nzsystem set -arg host.bnrStreamInitTimeoutSec=600

Are you sure you want to change the system configuration (y|n)? [n] y

$ nzsystem resume

check Status

$nzstate

Method 2:-

A. make changes in  /nz/data/config/system.cfg by adding the below parameter:

host.bnrStreamInitTimeoutSec=600

B. Restart the NPS System  using the "nzsystem restart" command.