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ChecksumHook Post-Commit Hook

ChecksumHook is a PostCommitHook registered under the name Post commit checksum trigger.

Name

PostCommitHook 
name: String

name is part of the PostCommitHook abstraction.

name is Post commit checksum trigger.

Execute Post-Commit Hook

PostCommitHook 
run(
  spark: SparkSession,
  txn: CommittedTransaction): Unit

run is part of the PostCommitHook abstraction.

run...FIXME

Write Checksum File

writeChecksum(
  spark: SparkSession,
  txn: CommittedTransaction): Unit

writeChecksum creates a WriteChecksum (that in turn writeChecksumFile).