Github user srowen commented on a diff in the pull request: https://github.com/apache/spark/pull/17329#discussion_r106848680 --- Diff: common/network-common/src/main/java/org/apache/spark/network/buffer/FileSegmentManagedBuffer.java --- @@ -37,13 +37,24 @@ * A {@link ManagedBuffer} backed by a segment in a file. */ public final class FileSegmentManagedBuffer extends ManagedBuffer { - private final TransportConf conf; + private final boolean lazyFileDescriptor; + private final int memoryMapBytes; private final File file; private final long offset; private final long length; public FileSegmentManagedBuffer(TransportConf conf, File file, long offset, long length) { - this.conf = conf; + this(conf.lazyFileDescriptor(), conf.memoryMapBytes(), file, offset, length); + } + + public FileSegmentManagedBuffer( --- End diff -- Just don't add a new constructor. The existing one can set the new fields.
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