# usegalaxy.eu: gz file getting corrupted during ftp import cycle **URL:** \ **Category:** usegalaxy.eu support\ **Tags:** upload\ **Created:** [October 18, 2021, 10:55am UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855 "2021-10-18T10:55:33Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![marten](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/marten/32/6_2.png) [@marten](https://help.galaxyproject.org/u/marten)\ **Post date:** [October 18, 2021, 10:55am UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/1 "2021-10-18T10:55:33Z")
## Any ideas on what can be causing the following file corruption? ### Path 1 - I have a `example.fastq.gz` file on remote server. - I upload it to [usegalaxy.eu](http://usegalaxy.eu) using `curl -T {"example.fastq.gz"} --user user@name.de --ssl ftp://ftp.usegalaxy.eu` - I import it to galaxy setting it’s datatype to `fastq.gz` - I execute fastQC on it and end up with `Ran out of data in the middle of a fastq entry. Your file is probably truncated` or `ID line didn't start with '@'` - I download the `example.fastq.gz` from Galaxy to disk - I run `gunzip` on the file and get `unexpected end of file``uncompress failed` ### Path 2 - I have a `example.fastq.gz` file on remote server (this is identical file from Path 1) - I use scp to copy it to my local disk - I use `gunzip` to extract it - I run fastQC locally - All works fine edit: the md5 has changed original ```auto md5sum CB1A1_S1_R2_001.fastq.gz 33462a19ef9cb2595ffa06a849b062ff CB1A1_S1_R2_001.fastq.gz ``` downloaded from [usegalaxy.eu](http://usegalaxy.eu) ```auto md5 CB1A1_S1_R2_001.fastq.gz MD5 (CB1A1_S1_R2_001.fastq.gz) = 45284f73109d8866cfe81f3cdb2014ca ``` ---
**Author:** ![bjoern.gruening](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/bjoern.gruening/32/10_2.png) [@bjoern.gruening](https://help.galaxyproject.org/u/bjoern.gruening)\ **Post date:** [October 18, 2021, 12:55pm UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/2 "2021-10-18T12:55:48Z")
@marten does that also happen when you upload the file via web? ---
**Author:** ![gmauro](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/gmauro/32/904_2.png) [@gmauro](https://help.galaxyproject.org/u/gmauro)\ **Post date:** [October 18, 2021, 1:12pm UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/3 "2021-10-18T13:12:43Z")
@marten Does it happen only with a specific file? Can you share that file with me? ---
**Author:** ![marten](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/marten/32/6_2.png) [@marten](https://help.galaxyproject.org/u/marten)\ **Post date:** [October 18, 2021, 1:48pm UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/4 "2021-10-18T13:48:17Z")
> [@bjoern.gruening](#): > > does that also happen when you upload the file via web? I tried once with the same file and it worked fine. > [@gmauro](#): > > Does it happen only with a specific file? Can you share that file with me? It happened with many files in that batch of 192 datasets. I’ll share a history with you ---
**Author:** ![marten](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/marten/32/6_2.png) [@marten](https://help.galaxyproject.org/u/marten)\ **Post date:** [October 18, 2021, 5:47pm UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/5 "2021-10-18T17:47:56Z")
update: I’ve followed the same steps as in Path 1 on the whole set (182 files) at [usegalaxy.org](http://usegalaxy.org) and everything worked without an error. ---
**Author:** ![gmauro](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/gmauro/32/904_2.png) [@gmauro](https://help.galaxyproject.org/u/gmauro)\ **Post date:** [October 27, 2021, 8:05am UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/6 "2021-10-27T08:05:12Z")
I uploaded a set of 57 fastq.gz files, from 400MB to 12GB, using curl from 3 different location in Europe (DE, IT, UK) to our FTP server. All of them were successfully transferred and verified. As I told you, I think something really weird it’s happening over the network between you and us. ---
**Author:** ![marten](https://sea2.discourse-cdn.com/flex020/user_avatar/help.galaxyproject.org/marten/32/6_2.png) [@marten](https://help.galaxyproject.org/u/marten)\ **Post date:** [October 27, 2021, 8:35am UTC](https://help.galaxyproject.org/t/usegalaxy-eu-gz-file-getting-corrupted-during-ftp-import-cycle/6855/7 "2021-10-27T08:35:48Z")
Thank you very much for checking. That is a disturbing find nevertheless. 😕