yma11 commented on code in PR #5772:
URL: https://github.com/apache/incubator-gluten/pull/5772#discussion_r1606293375
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backends-velox/src/main/scala/org/apache/gluten/execution/python/ColumnarArrowEvalPythonExec.scala:
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@@ -341,11 +355,20 @@ case class ColumnarArrowEvalPythonExec(
val joinedVectors = (0 until inputCb.numCols).toArray.map(
i => inputCb.column(i)) ++ (0 until
outputCb.numCols).toArray.map(
i => outputCb.column(i))
+ // Columns in outputCb has random 0 or 1 refCnt and will fail
checks in ensureOffload,
+ // so we do a hard reset here.
Review Comment:
Not quite. The outputCb is directly retrieved from python worker so can't
debug why it happens.
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