Release Notes for Couchbase Autonomous Operator 1.1

K8S-504

Summary: Pod volumes are deleted when pods are deleted. As a result, important debugging information may not be available after a failure.

K8S-538

Summary: cbopinfo does not redact potentially sensitive information from all logs.

K8S-493

Summary: It’s not possible to attach a persistent volume to the Couchbase logs directory for deployments when Couchbase data is not written to a persistent volume. This means that important debugging information may be unavailable during failure situations.

Workaround: You should always deploy Couchbase clusters in production with persistent volumes.

K8S-531

Summary: When the same event occurs on different Couchbase nodes, the event order is not reported consistently. This may affect applications that rely on the event order to be consistent when checking the status of a Couchbase cluster.

K8S-537

Summary: In rare cases, Kubernetes can drop events that are logged by the Operator.

General

Upgrading Couchbase Server using the Operator is not currently supported.

General

Couchbase client access is only supported locally within the Kubernetes cluster or where cluster DNS can be accessed by, or replicated to, a remote network.

For more information, see About Kubernetes Networking and Couchbase.

General

The Operator manages the state of the Couchbase Server cluster. Therefore, at this time, all cluster configuration changes must be made by modifying the CouchbaseCluster configuration file and pushing it to Kubernetes. Any manual changes to the configuration that are made using the Couchbase Server Web Console, CLI, REST API, or SDK will be reverted by the Operator. This includes things like adding a node or creating a server group.

The one exception is when disableBucketManagement is set to true in the CouchbaseCluster configuration (the default is false). If this is the case, the creation and deletion of Couchbase buckets must be done manually. Refer to the CouchbaseCluster documentation for more

K8S-640

Summary: The node disk storage statistic that is displayed in the Couchbase Server Web Console may appear to be inaccurate when using persistent volumes. This is because the calculation that formulates this statistic does not properly support persistent volumes.

K8S-622

Summary: Clusters without persistent volumes require manual failover when nodes are down and auto-failover cannot be performed. In the event that the Operator also crashes before nodes have been failed over, the Operator will require manual failover of down nodes before proceeding to reconcile any changes made to the cluster.

K8S-556

Summary: Only dynamic volume provisioning via storage classes is supported.

K8S-421

Summary: If a cluster is scaling up when not enough nodes are present, the Operator will not rebalance the cluster even if some nodes can be added.

Workaround: You should ensure that sufficient resources are present in the Kubernetes cluster before scaling a Couchbase cluster.

K8S-389

Summary: Kubernetes doesn’t allow the setting of ulimit parameters on individual containers.

Workaround: You can set ulimits on the physical machine that Kubernetes is running on; the ulimit parameters will be inherited by the containers.

K8S-89

Summary: If you manually increase the number of replicas of a bucket, then the Operator may rebalance the cluster before reverting the bucket’s changes.

Workaround: You should always change the CouchbaseCluster configuration through the Operator. If you change the CouchbaseCluster configuration directly on the cluster (such as through the Couchbase Server Web Console), then the Operator will revert those changes.