Bump github.com/nats-io/nats-server/v2 from 2.1.9 to 2.8.0 in /distributor

[dependabot]

Bumps github.com/nats-io/nats-server/v2 from 2.1.9 to 2.8.0.

Release notes

Sourced from github.com/nats-io/nats-server/v2's releases.

Release v2.8.0

Changelog

Go Version

• 1.17.9: Both release executables and Docker images are built with this Go release.

Added:

• LeafNode:
  • Support for a min_version in the leafnodes{} that would reject servers with a lower version. Note that this would work only for servers that are v2.8.0 and above (#3013)
• Monitoring:
  • Server version in monitoring landing page (#2928)
  • Logging to /healthz endpoint when failure occurs. Thanks to @​samuel-form3 for the contribution (#2976)
  • MQTT and Websocket blocks in the /varz endpoint (#2996)
• JetStream:
  • Consumer check added to healthz endpoint (#2927)
  • Max stream bytes checks (#2970)
  • Ability to limit a consumer's MaxAckPending value (#2982)
  • Allow streams and consumers to migrate between clusters. This feature is considered "beta" (#3001, #3036, #3041, #3043, #3047)
  • New unique_tag option in jetstream{} configuration block to prevent placing a stream in the same availability zone twice (#3011)
  • Stream Alternates field in StreamInfo response. They provide a priority list of mirrors and the source in relation to where the request originated (#3023)
• Deterministic subject tokens to partition mapping (#2890)

Changed:

• Gateway:
  • Duplicate server names are now detected across a super-cluster. Server names ought to be unique, which is critical when JetStream is used (#2923)
• JetStream:
  • Processing of consumers acknowledgments are now done outside of the socket read go routine. This helps reducing occurrences of "Readloop" warnings for route connections when there was a lot of pending acknowledgements to process per consumer. The redeliveries are also possibly postponed (by chunk of 100ms) to favor processing of acknowledgements (#2898)
  • Lower default consumer's "Maximum Ack Pending" from 20,000 to 1,000. This affects only applications/NATS CLI that do not set an explicit value. If you notice a performance degradation and your system can handle very well a higher value, then the parameter should be explicitly configured to a higher value when creating the consumer/subscription (#2972)
• Duplicate user names in authorization{} and accounts{} blocks are now detected and will fail the start of the server. Thanks to @​smlx for the report (#2943)

Improved

• Configuration:
  • Skip exact duplicate URLS for routes, gateways or leaf nodes. Duplicate route URLs could cause issues for JetStream cases since it may prevent electing a leader (#2930)
• Logging:
  • Limiting rate of some identical warnings (#2994)
• JetStream:
  • Behavior of "list" and "delete" operations for offline streams has been improved (responses no longer hanging or failing) (#2925)
  • When a consumer had a backoff duration list, the server could check for redeliveries more frequently than it should have. The redelivery timing was still honored though (#2948)
  • Ensures the cluster information in /jsz monitoring endpoint is sent from the leader only (#2932, #2983, #2984)
  • Memory pooling and management (#2960)
  • Consumer snapshot logic and disk usage in clustered mode. Thanks to @​phho for the report (#2973)
  • Performance of ordered consumers (and stream catchup) with longer RTTs (#2975)
  • Performance for streams containing multiple subjects and consumer with a filter. Thanks to @​samuel-form3 for the report (#3008)
  • Reduction of unnecessary leader elections (#3035)
  • On recovery, the server will now print the filenames for which bad checksums were detected (#3053)

Fixed

• JetStream:

... (truncated)

Commits

• 90721ee Merge pull request #3054 from nats-io/release_2_8_0
• 38bbc6c Release v2.8.0
• ddd31b1 Merge pull request #3022 from LaurensVergote/Windows
• ca63b20 Bump version to 2.8.0-beta.23
• 6d71937 Merge pull request #3053 from nats-io/js_add_file_names
• 322115b [fixed] On config reload js got disabled, when previously set via command lin...
• af1a80d Merge pull request #3047 from nats-io/move-back
• 2659b30 [IMPROVED] JetStream: add file names for invalid checksums
• 1178b4c Merge pull request #3052 from nats-io/js_sources_issues
• 12f134a Merge pull request #3049 from nats-io/oc-bump
• Additional commits viewable in compare view

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[dependabot]

Superseded by #355.