`Error: invalid signature` when unzipping Geonames data file

[heffergm]

This occurs sporadically.

root@worker1:/mnt/pelias/logs# cat /mnt/pelias/logs/geonames_all.err
[Error: invalid signature: 0xc7cf971f]
_writableState.buffer is deprecated. Use _writableState.getBuffer() instead.
events.js:85
      throw er; // Unhandled 'error' event
            ^
Error: invalid signature: 0xc7cf971f
    at /mnt/pelias/pelias-geonames/releases/20160108001248/node_modules/geonames-stream/node_modules/unzip/lib/parse.js:63:13
    at processImmediate [as _immediateCallback] (timers.js:358:17)

[orangejulius]

Since this ticket we've completely revamped the Geonames importer. This looks like a transient issue related to an invalid download file. If it happens again I will take another look.

[orangejulius]

Hello two years later, this issue has happened again and is an issue in the unzip utility we use. Fortunately there is a replacement

[orangejulius]

This appears to not necessarily be an issue with the unzip NPM package, but something about the files that are downloaded to disk that causes them to be slightly corrupt in a way the unzip command line program handles fine, but the unzip NPM package does not. It's unclear if it's our downloader causing the corruption or if the Geonames server distributes the files in this corrupted state.