HeartSaVioR commented on a change in pull request #23840: [SPARK-24295][SS] Add
option to retain only last batch in file stream sink metadata
URL: https://github.com/apache/spark/pull/23840#discussion_r258316521
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File path: docs/structured-streaming-programming-guide.md
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@@ -536,6 +536,11 @@ Here are the details of all the sources in Spark.
href="api/R/read.stream.html">R</a>).
E.g. for "parquet" format options see
<code>DataStreamReader.parquet()</code>.
<br/><br/>
+ <code>ignoreFileStreamSinkMetadata</code>: whether to ignore metadata
information being left from file stream sink, which leads to always use
in-memory file index. (default: false)
Review comment:
I couldn't find place to leave this for (batch) file source. Please let me
know if we have proper place to put. At least we guide the needs of enable this
option when "retainOnlyLastBatchInMetadata" option is enabled, so might be safe
for batch case as well.
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