Github user JoshRosen commented on a diff in the pull request:
https://github.com/apache/spark/pull/6910#discussion_r32876062
--- Diff:
external/flume-sink/src/main/scala/org/apache/spark/streaming/flume/sink/SparkAvroCallbackHandler.scala
---
@@ -53,7 +53,7 @@ private[flume] class SparkAvroCallbackHandler(val
threads: Int, val channel: Cha
// Since the new txn may not have the same sequence number we must guard
against accidentally
// committing a new transaction. To reduce the probability of that
happening a random string is
// prepended to the sequence number. Does not change for life of sink
- private val seqBase = RandomStringUtils.randomAlphanumeric(8)
+ private val seqBase = UUID.randomUUID().toString.substring(0, 8)
--- End diff --
Why not just use the Scala random string functionality instead?
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