Details
Critical Description
Krishna Doddi (aka Prasad Doddi) found this issue when trying to use Capella DNS SRV name with cbbackupmgr (from outside of Capella). This issue also affects cbimport, cbexport – the workaround is to use -c https://<hostname or ip of one of the cluster data nodes> – you can find the hostname of the cluster nodes in the error message or by running "nslookup -type=srv _couchbases._tcp.<dns_srv_name_of_cluster>".
The cbbackupmgr is from Couchbase Server 7.0.2, which has the fix for MB-48078.
% cbbackupmgr backup -a /Users/hyun-ju.vega/cb_backups_20211214_2 -r repo_capella -c couchbases://cb.6lptdxsqmmp0u79d.nonprod-project-avengers.com -u dbaas -p 'password_removed' --no-ssl-verify
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Error backing up cluster: failed to connect to any host(s) from the connection string, check the logs for more details
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The cbbackupmgr log shows:
2021-12-14T13:33:22.308-08:00 (Cmd) backup -a /Users/hyun-ju.vega/cb_backups_20211214_2 -r repo_capella -c couchbases://cb.6lptdxsqmmp0u79d.nonprod-project-avengers.com -u <ud>dbaas</ud> -p ***** --no-ssl-verify
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2021-12-14T13:33:22.308-08:00 (Cmd) mounted archive with id: 9b395eb3-c4f4-42ef-a559-4172d69d557b
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2021-12-14T13:33:22.423-08:00 (REST) (Attempt 1) (GET) Dispatching request to 'http://upovyebmlz5ormbw.6lptdxsqmmp0u79d.nonprod-project-avengers.com:18091/pools/default/nodeServices'
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2021-12-14T13:33:22.563-08:00 ERRO: (REST) (Attempt 1) (GET) Failed to dispatch request to 'http://upovyebmlz5ormbw.6lptdxsqmmp0u79d.nonprod-project-avengers.com:18091/pools/default/nodeServices': Get "http://upovyebmlz5ormbw.6lptdxsqmmp0u79d.nonprod-project-avengers.com:18091/pools/default/nodeServices": EOF -- rest.(*Request).execute() at request.go:228
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2021-12-14T13:33:22.564-08:00 WARN: (REST) failed to bootstrap client, will retry: failed to get cluster nodes: failed to execute request: http client failed to dispatch/receive request/response: error executing 'GET' request to '/pools/default/nodeServices' response body was empty, check the logs for more details -- rest.newClient() at client.go:137
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2021-12-14T13:33:22.564-08:00 (REST) (Attempt 1) (GET) Dispatching request to 'http://9-xodpnetbjllvzy.6lptdxsqmmp0u79d.nonprod-project-avengers.com:18091/pools/default/nodeServices'
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From the logs above, can see that it's doing a GET call using http:// instead of https://
Get "http://upovyebmlz5ormbw.6lptdxsqmmp0u79d.nonprod-project-avengers.com:18091/pools/default/nodeServices"
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Note: You can see the same cbbackupmgr log error messages if you run against localhost with http:// and port 18091 :
% cbbackupmgr backup -a /Users/hyun-ju.vega/cb_backups_20211214 -r repo_local -c http://localhost:18091 -u Administrator -p password --no-ssl-verify
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whereas, with https:// and port 18091, works fine (takes backup):
% cbbackupmgr backup -a /Users/hyun-ju.vega/cb_backups_20211214 -r repo_local -c https://localhost:18091 -u Administrator -p password --no-ssl-verify
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