Amazon Neptune
User Guide (API Version 2017-11-29)

Amazon Neptune Engine Updates 2019-01-21

Version: 1.0.1.0.200267.0

Amazon Neptune 1.0.1.0.200267.0 is generally available. All new Neptune DB clusters, including those restored from snapshots, will be created in Neptune 1.0.1.0.200267.0 after the engine update is complete for that Region.

Existing clusters can be upgraded to this release immediately using the DB cluster operations on the console or by using the SDK.

Updates are applied to Neptune DB clusters during system maintenance windows. The timing of when updates are applied depends on the Region and maintenance window setting for the DB cluster, in addition to the type of update.

Note

The instance maintenance window does not apply to engine updates.

Updates are applied to all instances in a DB cluster simultaneously. An update requires a database restart on all instances in a DB cluster, so you will experience downtime ranging from 20–30 seconds to several minutes, after which you can resume using your DB cluster or clusters. You can view or change your maintenance window settings on the Neptune console.

If you have any questions or concerns, the AWS Support team is available on the community forums and through AWS Premium Support.

Improvements

  • Neptune waits longer (within the query timeout specified) for any conflicts to get resolved. This reduces the number of concurrent modification exceptions that need to be handled by the client (see Query Errors).

  • Fixed an issue where Gremlin cardinality enforcement sometimes caused the engine to restart.

  • Improved Gremlin performance for emit.times repeat queries.

  • Fixed a Gremlin issue where repeat.until was allowing .emit solutions through that should have been filtered.

  • Improved error handling in Gremlin.

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