Github user parthchandra commented on a diff in the pull request: https://github.com/apache/drill/pull/826#discussion_r117094096 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetRecordWriter.java --- @@ -380,14 +384,21 @@ public void endRecord() throws IOException { // since ParquetFileWriter will overwrite empty output file (append is not supported) // we need to re-apply file permission - parquetFileWriter = new ParquetFileWriter(conf, schema, path, ParquetFileWriter.Mode.OVERWRITE); + if (useConfiguredBlockSize) { + // Round up blockSize to multiple of 64K. + long writeBlockSize = ((long) ceil((double)blockSize/BLOCKSIZE_MULTIPLE)) * BLOCKSIZE_MULTIPLE; --- End diff -- This is not quite consistent with the use of block size in the `checkBlockSizeReached` function. You want to use the same size in both places.
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