[ZDM]: Zero Downtime Migration Evaluation Command Fails With Error "PRCZ-2006 : Unable to establish SSH connection to node" (Doc ID 2636810.1)

Last updated on APRIL 05, 2020

Applies to:

Symptoms

Executing zdmcli migrate database command with eval option fails with following error:
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[zdmuser@anandutest bin]$ ./zdmcli query job -jobid 21
anandutest: Audit ID: 58
Job ID: 21
User: zdmuser
Client: anandutest
Scheduled job command: "zdmcli migrate database -sourcesid <source DB SID> -sourcenode <source host> -srcauth zdmauth -srcarg1 user:opc -srcarg2 identity_file:/home/zdmuser/key/pvt.txt -srcarg3 sudo_location:/usr/bin/sudo -targetnode <target host> -targethome /u01/app/oracle/product/18.0.0.0/dbhome_1 -backupuser <bkup user> -rsp /home/zdmuser/respfile/zdm_template_ocic_oci.rsp -tgtauth zdmauth -tgtarg1 user:opc -tgtarg2 identity_file:/home/zdmuser/key/pvt.txt -tgtarg3 sudo_location:/usr/bin/sudo -eval"
Scheduled job execution start time: 2020-02-07T05:11:22Z. Equivalent local time: 2020-02-07 05:11:22
Current status: FAILED
Result file path: "/home/zdmuser/zdm/base/chkbase/scheduled/job-21-2020-02-07-05:11:49.log"
Job execution start time: 2020-02-07 05:11:49
Job execution end time: 2020-02-07 05:11:50
Job execution elapsed time: 0 seconds

Result file "/home/zdmuser/zdm/base/chkbase/scheduled/job-21-2020-02-07-05:11:49.log" contents:
anandutest: Processing response file ...
PRCZ-4001 : failed to execute command "/bin/uname" using the privileged execution plugin "zdmauth" on nodes "<target host>" within 120 seconds
PRCZ-2006 : Unable to establish SSH connection to node "ananduoci" to execute command "/bin/uname"
No more authentication methods available
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Connectivity from zdm host to source database host and target database host works fine using private key.

Cause

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