Minor Description
While investigating a workaround for MB-42352 I came across this issue.
Problem
cbbackupmgr hangs when there is a EOF error:
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cbbackupmgr hangs |
/opt/couchbase/bin/cbbackupmgr restore -a backup -r zombie -c 10.112.201.101 -u Administrator -p password
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(1/1) Restoring backup 2020-10-29T15_05_45.745791997Z '2020-10-29T15_05_45.745791997Z'
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Transferring key value data for 'test' at 101B/s (about 0s remaining) 1 items / 28.20KB
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[================================================================================================================================== ] 99.81%
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backup.logs |
2020-10-29T18:16:57.018+00:00 WARN: (Pool) (test) Failed to send document with key '<ud>test</ud>' because of an unexpected EOF -- couchbase.(*MemcachedWorker).processOperation() at pool_worker.go:350
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2020-10-29T18:16:57.018+00:00 WARN: (Pool) (test) Failed to send document with key '<ud>expiry</ud>' because of an unexpected EOF -- couchbase.(*MemcachedWorker).processOperation() at pool_worker.go:350
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2020-10-29T18:18:56.987+00:00 WARN: (Pool) (test) Memcached has been inactive for 1m0s, last item count 1 -- couchbase.(*MemcachedWorker).monitorActivity.func1() at pool_worker.go:411
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2020-10-29T18:21:45.746+00:00 Signal `interrupt` received, exiting
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Steps to reproduce
Create the backup using a 6.0.4cluster and cbbackupmgr 6.6.0:
1. Create a document with user xattrs and a 10 second TTL on Couchbase Server 6.0.3
/opt/couchbase/bin/cbc-subdoc -U couchbase://localhost/test -u Administrator -P password
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subdoc> set test value -x xattr=100 -e 10
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2. Wait 10 seconds
3. Take a backup
/opt/couchbase/bin/cbbackupmgr config -a backup -r zombie
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/opt/couchbase/bin/cbbackupmgr backup -a backup -r zombie -c 10.112.194.101 -u Administrator -p password
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For the restore setup a cluster on Couchbase Server 6.5.1, still using cbbackupmgr 6.6.0
1. Change the allow_del_with_meta_prune_user_data config on the bucket
/opt/couchbase/bin/cbepctl localhost:11210 -b test -u Administrator -p password set flush_param allow_del_with_meta_prune_user_data true
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2. Do the restore
/opt/couchbase/bin/cbbackupmgr restore -a backup -r zombie -c 10.112.201.101 -u Administrator -p password
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Expectations
cbbackupmgr should not hang
Attachments
Issue Links
- relates to
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MB-42352 delete_with_meta incompatibility issues between 6.6.0/6.5.1 and older versions when using user xattrs
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- Closed
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