Datomic Cloud Releases

The 454-8573 release contains a number of performance and availability enhancements:

• Enhancement: You can configure systems to preload a database before serving requests, eliminating a source of unavailable anomalies.
• Enhancement: Ion deployments load active databases before serving requests, eliminating a source of unavailable anomalies.
• Enhancement: Improved throughput for transactions initiated by ion applications running the Production Topology.
• Enhancement: Improved performance for systems that create and delete many databases (e.g. test systems)
• Enhancement: Improvements to logging.

• Enhancement: Increase CodeDeploy timeout to 5 minutes.
• Enhancement: Include doc strings for user facing functions in build artifact

• Add compatibility with com.cognitect/aws-api
• Add Datafy
• Upgraded http-client to 0.1.87
• Improved error reporting

Release 441-8505 includes critical updates. All users of the Production Topology and Query Groups should upgrade to 441-8505 immediately. The Solo Topology is not affected.

• Critical: fixes a problem that can cause portions of the log to become inaccessible. Please update as soon as possible.

• New feature: query groups.
• New instance type option: i3.xlarge for Production.
• Improved memory settings: more stack space for Solo, more heap space for Production.
• Bugfix: fixed bug that could prevent a Production node from beginning indexing jobs.

• Bugfix: fixed bug that could cause a with database query to go to the wrong node in a production cluster.
• Bugfix: fixed Jetty configuration that could cause a client to prevent JVM from shutting down.
• Upgraded transit-clj to 0.8.313
• :query-group parameter is no longer required in the client arg-map

• Enhancement: parameters library for working with the AWS Systems Manager Parameter Store

• Bugfix: allow retraction of :db/unique attributes
• Bugfix: coerce Integer values to long when needed in transactions
• Enhancement: better memory utilization allows larger query results
• Enhancement: automatically rollback deployments when an ion application fails to load
• Added support for ap-southeast-2 (Sydney) region

• New Feature: datomic.ion.cast library for monitoring ions
• Bugfix: fixed race condition in ion code loading that could allow ion invocation before namespace completely loaded
• Enhancement: warn on dependency conflicts
• Improvement: prefer shell-friendly symbols instead of strings as arguments to datomic.ion.dev CLI commands
• Improvement: better error messaging when deploying to the wrong region.
• Improvement: list available deploy groups in push output
• Improvement: enforce the requirement for :uname when project has a :local/root in deps.edn.

• Enhancement: added sync to client API. See https://docs.datomic.com/cloud/whatis/client-synchronization.html
• Better error message when unable to connect to cluster or proxy.

• Upgraded AWS libs to 1.11.349
• Upgraded Jackson libs to 2.9.5
• Fixed cache problem where all d/with databases deriving from a common initial call to d/with-db had the same common value.

• Enhancement: added :server-type :ion
• Enhancement: ensure recentness of d/db conn

• Enhancement: Datomic Ions
• Improvement: Replaced Application Load Balancer with Network Load Balancer. If your applications run in a separate VPC you will need to configure a VPC endpoint.

• Bugfix: doubles and floats allowed in transactions
• Bugfix: avoid unnecessary ":AdopterSkippedOlder" alert when creating new database
• Update: latest Amazon Linux patches
• Improvement: better error handling in Storage template
• Improvement: reduce memcached timeout