python - cron job on Ubuntu instance doesn't work (Google Cloud Platform) -


i have been monitoring functioning of python (2.7) program downloads text files ftp server, parses required information files , uploads on google cloud datastore.

this program runs every 10 minutes using cron job on ubuntu 14.04 lts instance created on google compute engine. have added cron job root user. (also created swap space of 1gb).

instance configuration:
machine type: n1-standard-1 (1vcpu, 3.75gb)
cpu platform: intel sandy bridge
disk size: 50gb (standard persistent disk, mode: boot, read/write)
firewalls: enabled allowing http traffic & disabled allowing https traffic

however, after 36 hours, program able download (& parse) files, while skipping other files.

i have test run program multiple number of times (runs fine) , have referenced other queries on stackoverflow still facing same issues.

i have been trying long time unable make progress on part. can please me figure out if need make changes in system configuration or missing.

thank you.


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