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Horizon 1.8.0
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@bartekn bartekn released this 31 Aug 17:18
horizon-v1.8.0
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Learn about vigilant mode.

Changes

  • Added new and changed existing metrics:
    • horizon_build_info - contains build information in labels (version - Horizon version, goversion - Go runtime version),
    • horizon_ingest_enable - equals 1 if ingestion system is running, 0 otherwise,
    • horizon_ingest_state_invalid - equals 1 if state is invalid, 0 otherwise,
    • horizon_db_max_open_connections - determines the maximum possible opened DB connections,
    • horizon_db_wait_duration_seconds_total - changed the values to be in seconds instead of nanoseconds.
  • Fixed a data race when shutting down the HTTP server. (#2958).
  • Fixed emitting incorrect errors related to OrderBook Stream when shutting down the app. (#2964)

Experimental

The previous implementation of Captive Stellar-Core streams meta stream using a filesystem pipe. This implies that both Horizon and Stellar-Core had to be deployed to the same server. One of the disadvantages of such requirement is a need for detailed per-process monitoring to be able to connect potential issues (like memory leaks) to the specific service.

To solve this it's now possible to start a captivecore on another machine and configure Horizon to use it in ingestion. This requires two config options set:

  • ENABLE_CAPTIVE_CORE_INGESTION=true,
  • REMOTE_CAPTIVE_CORE_URL - pointing to captivecore server.
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