THe Problem

Recently, I had been one requirement in my project for uploading real-time log record into hadoop cluster. I chose the open source software Flume. After installing flume, The log record could be transferred to hadoop cluster with gz suffix successfully. But I found the gz file size more than decompressed one.

-rw-r--r-- 1 root   root        942 Dec 27 17:28 ngaancache-access.log.2016122321.1482498035352
-rw-r--r-- 1 root   root       6571 Dec 27 17:32 ngaancache-access.log.2016122321.1482498035352.gz

When I used gzip command to decompress this file, one warning infomation "trailing garbage ignored" is reported as followed

#gzip ...

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