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CHANGELOG.md

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Change log

master

1.4.0 (2023-07-07)

  • Add HTTP RPC implementation. (@palkan)

  • Added telemetry data collection. (@palkan)

  • Add --turbo_rails_cleartext and --cable_ready_cleartext. (@palkan)

In a clear-text mode, stream names are passed as-is from the client, no signing is required. This mode is meant for experimenting with Turbo Streams or Cable Ready streams in non-Rails applications.

  • Introduce --disconnect_mode and deprecate --disable_disconnect. (@palkan)

You can use --disconnect_mode=never to achieve the same behaviour as with --disable_disconnect. The new (and default) --disconnect_mode=auto automatically detects if a Disconnect call is needed for a session (for example, Hotwire clients don't need it).

  • Refactor broadcasting to preserve the order of messages within a single stream. (@palkan)

Previously, we used a Go routine pool to concurrently delivery broadcasts, which led to nondeterministic order of messages within a single stream delivered in a short period of time. Now, we preserve the order of messages within a stream—the delivered as they were accepted by the server.

NOTE: Keep in mind that in a clustered setup with a non fan-out broadcaster (i.e., when using a broker), each broadcasted message is delivered to only a single node in the cluster (picked randomly). In this case, we cannot guarantee the resulting order.

  • Add redisx broadcast adapter. (@palkan)

  • Set HTTP broadcast to $PORT on Heroku by default. (@palkan)

  • Add broker preset to configure required components to use an in-memory broker. (@palkan)

  • New broadcasting architecture: broadcasters, subscribers and brokers. (@palkan)

1.3.1 (2023-03-22)

  • Add --gateway_advertise option for embedded NATS. (@palkan)

1.3.0 (2023-02-28)

  • Add configuration presets (fly, heroku). (@palkan)

Provide sensible defaults matching current platform.

  • Add embedded NATS support. (@gzigzigzeo, @palkan)

  • Added metrics default tags support for StatsD and Prometheus.

You can define global tags (added to every reported metric by default) for Prometheus (reported as labels) and StatsD. For example, we can add environment and node information:

anycable-go --metrics_tags=environment:production,node_id:xyz
# or via environment variables
ANYCABLE_METRICS_TAGS=environment:production,node_id:xyz anycable-go

For StatsD, you can specify tags format: "datadog" (default), "influxdb", or "graphite". Use the statsd_tag_format configuration parameter for that.

  • Added Statsd support.

You can send instrumentation data to Statsd. Specify statsd_host and (optionally) statsd_prefix:

anycable-go -statsd_host=localhost:8125 -statsd_prefix=anycable.
  • Add grpc_active_conn_num metrics. (@palkan)

Useful when you use DNS load balancing to know, how many active gRPC connections are established.

Also, added debug logs for gRPC connected/disconnected events.

  • Support placeholders and wildcards in --path. (@palkan)

1.2.3 (2022-12-01)

  • Add redis_tls_verify setting to enable validation of Redis server TLS certificate. (@Envek)

  • Add --proxy-cookies setting to filter cookies passed to RPC. (@rafaelrubbioli)

1.2.2 (2022-08-10)

  • Add NATS pub/sub adapter. (@palkan)

1.2.1 (2022-06-30)

  • Use automaxprocs to configure the number of OS threads. (@palkan)

  • Fix race conditions when stopping and starting streams within the same command. (@palkan)

1.2.0 (2021-12-21) 🎄

  • Add fastlane subscribing for Hotwire (Turbo Streams) and CableReady.

Make it possible to terminate subscription requests at AnyCable Go without performing RPC calls.

  • Add JWT authentication/identification support.

You can pass a properly structured token along the connection request to authorize the connection and set up identifiers without performing an RPC call.

1.1.4 (2021-11-16)

  • Add rpc_max_call_recv_size and rpc_max_call_send_size options to allow modifying the corresponding limits for gRPC client connection. (@palkan)

1.1.3 (2021-09-16)

  • Fixed potential deadlocks in Hub. (@palkan)

We noticed that Hub could become unresponsive due to a deadlock on streamsMu under a very high load, so we make locking more granular and removed nested locking.

1.1.2 (2021-06-23)

  • Added --rpc_enable_tls option. (@ryansch)

  • Do not treat RPC failures as errors. (@palkan)

Failure (e.g., subscription rejection) is an expected application behaviour and should not be treated as error (e.g., logged).

1.1.1 (2021-06-15)

  • Fixed potential concurrent read/write in hub. (@palkan)

1.1.0 🚸 (2021-06-01)

  • Added --max-conn option to limit simultaneous server connections. (@skryukov)

  • Added data_sent_bytes_total and data_rcvd_bytes_total metrics. (@palkan)

  • Add --allowed_origins option to enable Origin check during the WebSocket upgrade. (@skryukov)

  • Renamed metrics_log_interval to metrics_rotate_interval. (@palkan)

1.1.0.rc1 (2021-05-12)

  • Added server_msg_total and failed_server_msg_total metrics. (@prburgu)

  • Dropped deprecated RPC v0.6 support. (@palkan)

  • Made ping message timestamp precision configurable (@prburgu)

  • Added concurrency to broadcasting. (@palkan)

Now new broadcast messages are handled (and re-transmitted) concurrently by a pool of workers (Go routines). You can control the size of the pool via the hub_gopool_size configuration parameter (defaults to 16).

1.0.5 (2021-03-17)

  • Fix interval values for counters. (@prburgu)

See #128.

  • Make ping and stats refresh intervals configurable. (@palkan)

Added --ping_interval N and --stats_refresh_interval N options respectively (both use seconds).

1.0.4 (2021-03-04)

  • Fix race conditions in Hub. (@palkan)

Use a single channel for register/unregister and subscribe/unsubscribe to make order of execution deterministic. Since select .. case chooses channels randomly, we may hit the situation when registration is added after disconnection (un-registration).

  • Add sid=xxx to RPC logs. (@palkan)

1.0.3 (2021-01-05)

  • Handle TLS Redis connections by using VERIFY_NONE mode. (@palkan)

  • Added rpc_pending_num metric. (@palkan)

1.0.2 (2020-09-08)

  • Add channel states to disconnect requests. (@palkan)

  • Moved pingMessage (session), disconnectMessage (node) and Reply (hub) structs into common package. (@gr8bit)

  • Re-added git ref version to LD_FLAGS in Makefile. (@gr8bit)

1.0.1 (2020-07-07)

  • Fix subscribing to the same stream from different channels. (@palkan)

  • Support providing passwords for Redis Sentinels. (@palkan)

Use the following format: ANYCABLE_REDIS_SENTINELS=:[email protected]:26380,:[email protected]:26380.

  • Fix setting --metrics_host. (@palkan)

See #107.

1.0.0 (2020-06-24)

  • Add --disable_disconnect option. (@palkan)

Allows you to avoid calling Disconnect RPC method completely if you don't need it.

  • Add channel state support. (@palkan)

  • Add stopped streams support. (@palkan)

  • Add support for remote commands. (@palkan)

Handle remote commands sent via Pub/Sub. Currently, only remote disconnect is supported.

  • Add HTTP broadcasting adapter. (@palkan)

  • Add Redis Sentinel support. (@rolandg)

  • Send disconnect messages on server restart and authentication failures. (@palkan)

  • Add protov RPC metadata. (@palkan)

  • Add rpc_retries_total metrics. (@palkan)

This metrics represents the number of times RPC requests were retried. The large value might indicate that the RPC server pool size doesn't correspond to the rpc_concurrency value.

  • Use single gRPC client instance instead of a pool. (@palkan)

gRPC connection provides concurrency via H2 streams (with load balancing). Using a pool doesn't bring any performance improvements and sometimes 'cause instability (e.g., ResourceExhausted or Unavailable exceptions under the load)

We still limit the number of concurrent RPC requests. Now you can configure it via --rpc_concurrency setting.

See PR#88 for more.

  • Add --disconnect_timeout option to specify the timeout for graceful shutdown of the disconnect queue. (@palkan)

  • Add mem_sys_bytes metric. (@palkan)

Returns the total bytes of memory obtained from the OS (according to runtime.MemStats.Sys).

  • Add --enable_ws_compression option to enable WebSocket per message compression. (@palkan)

Disabled by default due to the experimental status in Gorilla.

  • IMPORTANT: Docker images versioning changed from vX.Y.Z to X.Y.Z. (@bibendi)

Now you can specify only the part of the version, e.g. anycable-go:1.0 instead of the full anycable-go:v1.0.0.

See Changelog for versions <1.0.0.