Github user QiangCai commented on a diff in the pull request: https://github.com/apache/carbondata/pull/2628#discussion_r213942049 --- Diff: core/src/main/java/org/apache/carbondata/core/util/BlockletDataMapUtil.java --- @@ -357,8 +357,8 @@ private static boolean isSameColumnSchemaList(List<ColumnSchema> indexFileColumn columnSchema.write(dataOutput); } byte[] byteArray = stream.toByteArray(); - // Compress with snappy to reduce the size of schema - return CompressorFactory.getInstance().getCompressor().compressByte(byteArray); + // Compress to reduce the size of schema + return CompressorFactory.getInstance().getCompressor("snappy").compressByte(byteArray); --- End diff -- SupportedCompressor.SNAPPY.getName
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