ERROR: couldn’t get response from all shards: convergeClusterWithTimeout:

MongoDB Percona Backup for MongoDB
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An error appeared when creating a backup

2021-06-01T17:44:24Z 0.00B [ERROR: couldn’t get response from all shards: convergeClusterWithTimeout: reached converge timeout] [2021-06-01T17:45:16]

pbm-agent v1.4.1

What can cause such an error and how to fix what would not appear in the future?

Ato backup is done according to the schedule and I think that it did, but in fact it did not.

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Hi, have you checked that all the cluster members have pbm-agent running properly?

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All participants have pbm-agent v1.4.1 OK status

What to do?

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Hi, have you done any changes to the cluster after starting the pbm-agent? like adding a new shard? Can you try a restart of the agent everywhere just in case?
Also what is the connection string you are using for the agent?

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After restarting pbm-agent on all nodes, the backup passed.
But how to track whether pbm-agent is operational on all nodes? When the status shows pbm-agent v1.4.1 OK status for all nodes

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Glad to hear that solved it. The agent will alert if it cannot connect, but even if the agent is up and running, backups might fail for different reasons. What I recommend is monitor the backup output to check for any errors.

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