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CHANGELOG.md

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Change log

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

Removed

  • No more 'BatchMode' option, we get wanted behavior only by setting MergeThresholdBlockAge:
    • '0' -> do not automatically merge, ever
    • '1' -> always merge
    • (any other duration) -> only merge bundle when all its blocks are older than this duration
  • No more 'tracker' to auto-merge based on current LIB (that feature requires too much setup)
  • No more option 'FailOnNonContinuousBlocks' -> (was not actually implemented anyway)

2021 (released throughout..)

Added

  • New Feature: auto-merge the mindreader will switch between producing merged-blocks and one-block files depending on the existence of merged files in destination store and on the age of the blocks. It will also never overwrite destination files (unless BatchMode is set)
  • New Feature: when producing merged files, a partial file will be produced on shutdown. If the next block to appear on next startup is the expected one, it will load the partial file to continue producing a merged-blocks file.
  • New option 'BatchMode' forces the mindreader to produce merged-blocks all the time (without checking block age or existence of merged files in block store) and to overwrite any existing merged-blocks files.
  • New option MergeThresholdBlockAge: defines the age at which a block is considered old enough to be included in a merged-block-file directly (without any risk of forking).

Fixed

  • auto-merged block files are now written locally first, then sent asynchronously to the destination storage. They are sent in order (no threads). This makes it more resilient.

Removed

  • discardAfterStopBlock: this option did not give any value, especially now that the mindreader can switch between producing merged blocks and one-block files
  • merge_upload_directly: that feature is now automatically enabled (see new auto-merge feature), the BatchMode option can force that behavior now.

[v0.0.1] - 2020-06-22

Fixed:

  • nodeos log levels are now properly decoded when going through zap logging engine instead of showing up as DEBUG
  • mindreader does not get stuck anymore when trying to find an unexisting snapshot (it fails rapidly instead)

Changed

  • ContinuousChecker is not enabled by default now, use FailOnNonContinuousBlocks
  • BREAKING: AutoRestoreLatest(bool) option becomes AutoRestoreSource (backup, snapshot)
  • Nodeos unexpectedly shutting down now triggers a Shutdown of the whole app
  • ShutdownDelay is now actually implemented for any action that will make nodeos unavailable (snapshot, volume_snapshot, backup, maintenance, shutdown..). It will report the app as "not ready" for that period before actually affecting the service.

Added

  • Options.DiscardAfterStopBlock, if not true, one-block-files will now be produced with the remaining blocks when MergeUploadDirectly is set. This way, they are not lost if you intend to restart without mergeUploadDirectly run a merger on these blocks later.
  • App nodeos_mindreader_stdin, with a small subset of the features, a kind of "dumb mode" that only does the "mindreader" job (producing block files, relaying blocks through GRPC) on none of the "manager" job.
  • Options.AutoSnapshotHostnameMatch(string) will only apply auto-snapshot parameters if os.Hostname() returns this string
  • Options.AutoBackupHostnameMatch(string) will only apply auto-backup parameters if os.Hostname() returns this string
  • Add FailOnNonContinuousBlocks Option to use continuousChecker or not
  • Possibility to auto-restore from latest snapshot (useful for BP), deleting appropriate files to make it work and continue
  • NumberOfSnapshotsToKeep flag to maintain a small list of snapshots -> If non-zero, it deletes older snapshot.

2020-03-21

Changed

  • License changed to Apache 2.0