…less headers, and LZO files written by hadoop-lzo do this. For reference, I looked at these resources when figuring out how LZO headers work. - header_t in LZOP source file conf.h - write_header() in LZOP source file lzop.c - mkHeader() in http://cpansearch.perl.org/src/PMQS/IO-Compress-Lzop-2.030/lib/IO/Compress/Lzop.pm - writeLzopHeader() in https://github.com/kevinweil/hadoop-lzo/blob/master/src/java/com/hadoop/compression/lzo/LzopOutputStream.java
… useful to create unique filenames that can later be merged to a single directory without name conflicts. As this eliminates naming race conditions, we remove the janky filename race counter.