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NetWorker New client wizard for SQL AG cluster configuration gives the error: "Dispatcher: Request timed out"

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Article Content


Symptoms



NetWorker server: Red Hat Linux 7.7, NetWorker version 19.1.1
NMM Client: 19.2.0.2
SQL server is configured in a multi-subnet configuration. 

NetWorker new client wizard for SQL AG listener / CNO  intermittently fails with the error "Dispatcher: Request timed out". The error is displayed in a pop-up window.


                                                                                      kA23a000000GKBxCAO_3_0

The daemon.raw logs these errors:
 
173678 03/16/2020 12:41:44 PM  5 2 113 738195200 821 0 rh69nmcsvr02.stoney.local nsrdisp_nwbg RPC critical Check whether the firewall is blocking3'.
173680 03/16/2020 12:41:47 PM  3 2 113 1197467392 17355 0 rh69nmcsvr02.stoney.local nsrexecd RPC error RPC client handle: No route to host.
172089 03/16/2020 12:41:47 PM  3 2 113 1197467392 17355 0 rh69nmcsvr02.stoney.local nsrexecd RPC error Unable to create the connection with 'portith address '192.168.207.53' at port number 7938.

Cause

The failure is seen when NetWorker server attempts to connect to inactive IP of the SQL AG listener / CNO. The time out for this connection attempt is longer than the NetWorker timeout for the wizard.

Resolution

Fine tune the tcp_sync_retries parameter to lower value, to fast fail connection attempts to inactive IP.

Article Properties


Affected Product

NetWorker

Product

NetWorker

Last Published Date

20 Nov 2020

Version

2

Article Type

Solution

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