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v1.9.5
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@sduchesneau sduchesneau released this 21 Mar 18:55
v1.9.5
2a62b0b

Substreams

  • Fix a panic when a module times out on tier2 while being executed from cached outputs
  • Add environment variables to control retry behavior, "SUBSTREAMS_WORKER_MAX_RETRIES" (default 10) and "SUBSTREAMS_WORKER_MAX_TIMEOUT_RETRIES" (default 2), changing from previous defaults (720 and 3)
    The worker_max_timeout_retries is the number of retries specifically applied to block execution timing out (ex: because of external calls)
  • The mechanism to slow down processing segments "ahead of blocks being sent to user" has been disabled on "noop-mode" requests, since these requests are used to pre-cache data and should not be slowed down.
  • The "number of segments ahead" in this mechanism has been increased from >number of parallel workers> to <number of parallel workers> * 1.5
  • Tier2 now returns GRPC error codes for DeadlineExceeded when it times out, and ResourceExhausted when a request is rejected due to overload
  • Tier1 now correctly reports tier2 job outcomes in the substreams request stats
  • Added jitter in "retry" logic to prevent all workers from retrying at the same time when tier2 are overloaded
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