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v1.6.0

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@sduchesneau sduchesneau released this 09 May 13:50
cc24a20

Compatibility

Note As of graph-node release v0.35.0, substreams that use "index modules" are not yet supported and cannot be used for Substreams-powered-Subgraphs

Upgrading

Note Upgrading to v1.6.0 will require changing the tier1 and tier2 versions concurrently, as the internal protocol has changed.

Highlights

Index Modules and Block Filter

  • Index Modules and Block Filter can now be used to speed up processing and reduce the amount of parsed data.
  • When indexes are used along with the BlockFilter attribute on a mapper, blocks can be skipped completely: they will not be run in downstreams modules or sent in the output stream, except in live segment or in dev-mode, where an empty 'clock' is still sent.
  • See https://github.com/streamingfast/substreams-foundational-modules for an example implementation
  • Blocks that are skipped will still appear in the metering as "read bytes" (unless a full segment is skipped), but the index stores themselves are not "metered"

Scheduling / speed improvements

  • The scheduler no longer duplicates work in the first segments of a request with multiple stages.
  • Fix all issues with running a substreams where modules have different "initial blocks"
  • Maximum Tier1 output speed improved for data that is already processed
  • Tier1 'FileWalker' now polls more aggressively on local filesystem to prevent extra seconds of wait time.

Fixed

  • Fix a bug in the gui that would crash when trying to restart the stream.
  • fix total read bytes in case data already cache
  • Fixed issues when processing modules with different initialBlocks

Added

  • New environment variable SUBSTREAMS_WORKERS_RAMPUP_TIME can specify the initial delay before tier1 will reach the number of tier2 concurrent requests.
  • Add 'clock' output to substreams run command, useful mostly for performance testing or pre-caching
  • (alpha) Introduce the wasip1/tinygo-v1 binary type.

Changed / Removed

  • Disabled otelcol:// tracing protocol, its mere presence affected performance.
  • Previous value for SUBSTREAMS_WORKERS_RAMPUP_TIME was 4s, now set to 0, disabling the mechanism by default.