Initializing a Node with CLI:
-u Administrator -p password \
--node-init-data-path /opt/couchbase/var/lib/couchbase/data \
--node-init-index-path /opt/couchbase/var/lib/couchbase/data \
--node-init-analytics-path /opt/couchbase/var/lib/couchbase/data \
--ipv4
Provision a Node with the CLI:
/opt/couchbase/bin/couchbase-cli cluster-init -c 35.239.237.169 \
--cluster-username Administrator \
--cluster-password password \
--services data,index,query \
--cluster-ramsize 512 \
--cluster-index-ramsize 256
Initializing a Node with REST API:
curl -u Administrator:password -v -X POST \
http://35.239.237.169:8091/nodes/self/controller/settings \
-d 'path=%2Fopt%2Fcouchbase%2Fvar%2Flib%2Fcouchbase%2Fdata&' \
-d 'index_path=%2Fopt%2Fcouchbase%2Fvar%2Flib%2Fcouchbase%2Fidata&' \
-d 'cbas_path=%2Fopt%2Fcouchbase%2Fvar%2Flib%2Fcouchbase%2Fadata&' \
-d 'eventing_path=%2Fopt%2Fcouchbase%2Fvar%2Flib%2Fcouchbase%2Fedata&'
Provision a Node with the REST API:
curl -v -X POST http://35.239.237.169:8091/node/controller/setupServices \
-d 'services=kv%2Cn1ql%2Cindex'
curl -v -X POST http://35.239.237.169:8091/pools/default \
-d 'memoryQuota=256' \
-d 'indexMemoryQuota=256'
curl -u Administrator:password -v -X POST http://10.128.0.13:8091/settings/web \
-d 'password=password&username=Administrator&port=SAME'
Add a Node and Rebalance with the CLI:
/opt/couchbase/bin/couchbase-cli server-add -c 10.128.0.13 \
--username Administrator --password password \
--server-add 10.128.0.14 \
--server-add-username Administrator \
--server-add-password password \
--services data
/opt/couchbase/bin/couchbase-cli rebalance -c 10.128.0.13:8091 \
--username Administrator \
--password password
Add a Node and Rebalance with the REST API:
#Adding node 10.128.0.14 to the cluster
curl -u Administrator:password -v -X POST \
10.128.0.13:8091/controller/addNode \
-d 'hostname=10.128.0.14&user=Administrator&password=password&services=kv'
curl -u Administrator:password -v -X POST \
10.128.0.14:8091/controller/rebalance \
-d 'knownNodes=ns_1@10.128.0.13,ns_1@10.128.0.14'
Join a Cluster with the REST API:
#Adding node 10.128.0.14 to the cluster
curl -u Administrator:password -v -X POST \
http://10.128.0.14:8091/node/controller/doJoinCluster \
-d 'hostname=10.128.0.13&user=Administrator&password=password&services=kv'
curl -u Administrator:password -v -X POST \
10.128.0.13:8091/controller/rebalance \
-d 'knownNodes=ns_1@10.128.0.14,ns_1@10.128.0.13'
List the Nodes with CLI:
/opt/couchbase/bin/couchbase-cli server-list -c 10.128.0.13:8091 \
--username Administrator \
--password password
List the Nodes with REST API:
curl -u Administrator:password -v -X GET \
http://10.128.0.13:8091/pools/default |python -m json.tool| grep hostname
[OR]
curl -u Administrator:password -v -X GET \
http://10.128.0.13:8091/pools/default | jq '.' | grep hostname
Remove a Node with the CLI:
/opt/couchbase/bin/couchbase-cli rebalance -c 10.128.0.13:8091 \
--username Administrator \
--password password --server-remove 10.128.0.14:8091
Remove a Node with the REST API:
curl -u Administrator:password -v -X POST \http://192.168.0.100:8091/controller/rebalance \
-d 'ejectedNodes=ns_1%40192.168.0.101' \
-d 'knownNodes=ns_1%40192.168.0.100%2Cns_1%40192.168.0.101'
Graceful Failover with the CLI:
/opt/couchbase/bin/couchbase-cli failover -c 192.168.0.100:8091 \
--username Administrator \
--password password \
--server-failover 192.168.0.101:8091
/opt/couchbase/bin/couchbase-cli rebalance -c 192.168.0.100:8091 \
--username Administrator \
--password password \
--server-remove 192.168.0.101:8091
Hard Failover with the REST API:
curl -v -X POST -u Administrator:password \
http://192.168.0.100:8091/controller/failover \
-d 'otpNode=ns_1@192.168.0.101'
curl -u Administrator:password -v -X POST \
http://192.168.0.100:8091/controller/rebalance \
-d 'knownNodes=ns_1@192.168.0.100,ns_1@192.168.0.101&ejectedNodes=ns_1@192.168.0.101'
Auto Failover with the CLI:
Enable auto-failover, with a 30 second auto-failover timeout
/opt/couchbase/bin/couchbase-cli setting-autofailover -c 192.168.0.100 --username Administrator \
--password password --enable-auto-failover 1 --auto-failover-timeout 30
Disable auto failover with the CLI:
/opt/couchbase/bin/couchbase-cli setting-autofailover -c 192.168.0.100 --username Administrator \
--password password --enable-auto-failover 0
Auto Failover with the REST API:
curl -u Administrator:password http://192.168.0.100:8091/settings/autoFailover
curl -i -X POST -u Administrator:password http://192.168.0.100:8091/settings/autoFailover \
-d 'enabled=true&timeout=60' \
-d 'failoverServerGroup=true&maxCount=2' \
-d 'failoverOnDataDiskIssues[enabled]=true&failoverOnDataDiskIssues[timePeriod]=60'
Reset the counter:
curl -X POST -i -u Administrator:password \
http://10.5.2.54:8091/settings/autoFailover/resetCount
Recovery with the CLI:
Full recovery
/opt/couchbase/bin/couchbase-cli recovery -c 192.168.0.100:8091 \
--username Administrator \
--password password \
--server-recovery 192.168.0.101:8091 \
--recovery-type full
Delta recovery
/opt/couchbase/bin/couchbase-cli recovery -c 192.168.0.100:8091 \
--username Administrator \
--password password \
--server-recovery 192.168.0.101:8091 \
--recovery-type delta
Rebalance
/opt/couchbase/bin/couchbase-cli rebalance -c 192.168.0.100:8091 \
--username Administrator \
--password password
Recovery with the REST API:
Full recovery
curl -u Administrator:password -v -X POST \
http://192.168.0.100:8091/controller/setRecoveryType \
-d 'otpNode=ns_1@192.168.0.101' \
Delta recovery
curl -u Administrator:password -v -X POST \
http://192.168.0.100:8091/controller/setRecoveryType \
-d 'otpNode=ns_1@192.168.0.101' \
Rebalance
curl -u Administrator:password -v -X POST \
192.168.0.100:8091/controller/rebalance \
-d 'knownNodes=ns_1@192.168.0.100,ns_1@192.168.0.101'
Manage Groups with the CLI:
Add a new, empty group,named Group 2
/opt/couchbase/bin/couchbase-cli group-manage -c 10.128.0.4:8091 \
-u Administrator \
-p couchbase \
--create \
--group-name 'Group 2'
Delete a Group
/opt/couchbase/bin/couchbase-cli group-manage -c 10.128.0.4:8091 \
-u Administrator \
-p couchbase \
--delete \
--group-name 'Group 2'
Assign a group when adding a server
/opt/couchbase/bin/couchbase-cli server-add -c 10.128.0.4:8091 \
--username Administrator \
--password couchbase \
--server-add 192.168.0.104:8091 \
--server-add-username Administrator \
--server-add-password couchbase \
--group-name 'Group 2' \
--services data,index,query
Move a server between groups
/opt/couchbase/bin/couchbase-cli group-manage -c 10.128.0.2:8091 \
-u Administrator \
-p couchbase \
--move-servers 10.128.0.4,10.142.0.2,10.142.0.4 \
--from-group 'Group 1' \
--to-group 'Group 2'
List files (refresh every second):
watch -n 1 ls -lrth /opt/couchbase/var/lib/couchbase/data
To alter index replicas(works in Couchbase version 6.5):
ALTER INDEX `REST`.`#primary` WITH {"action": "replica_count", "num_replica": 1};
ALTER INDEX `REST-TMP`.`#primary` WITH {"action": "replica_count", "num_replica": 1};
ALTER INDEX `travel-sample`.`#primary` WITH {"action": "replica_count", "num_replica": 1};
CREATE PRIMARY INDEX `#primary` ON `REST`
CREATE PRIMARY INDEX `#primary` ON `REST-TMP`
CREATE PRIMARY INDEX `#primary` ON `travel-sample`
Note: Above are the commands used in Module 4 of the Couchbase Database Administration Course.
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