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Message-ID: <AANLkTik5WS7Qh4F3dt0bO4RcYWUKb08OXyGjsBEHMJPR@mail.gmail.com>
Subject: "Map input bytes" vs HDFS_BYTES_READ
From: Ted Yu <yuzhihong@gmail.com>
To: mapreduce-dev@hadoop.apache.org
Content-Type: multipart/alternative; boundary=20cf3054a2b3de2ce7049b43855c

--20cf3054a2b3de2ce7049b43855c
Content-Type: text/plain; charset=ISO-8859-1

In hadoop 0.20.2, what's the relationship between "Map input bytes" and
HDFS_BYTES_READ ?

<counter group="FileSystemCounters"
name="HDFS_BYTES_READ">203446204073</counter>
<counter group="FileSystemCounters"
name="HDFS_BYTES_WRITTEN">23413127561</counter>
<counter group="Map-Reduce Framework" name="Map input
records">163502600</counter>
<counter group="Map-Reduce Framework" name="Spilled Records">0</counter>
<counter group="Map-Reduce Framework" name="Map input
bytes">965922136488</counter>
<counter group="Map-Reduce Framework" name="Map output
records">296754600</counter>

Thanks

--20cf3054a2b3de2ce7049b43855c--