Question

I ran into “401 Unauthorized” problem when I tried the bigquery snippet by Michael from this post on my computer. As suggested by ryguyrg, I synchronized my computer time (by clicking “update now”） and the code worked. But the problem is, after a while, maybe several minutes, when I reran the code, it failed again with 401 Error. So I have to manually synch my computer time almost every time I want to run a big query request.

I am pretty sure my computer is working well, and the time shouldn’t differ by more than a couple of millisecond with respect to the server. So what exactly is causing the problem? Shall I try something to synch the time from code before the request or is there a better way around?

Below is the 401 error message for reference:

Exception in thread "main" com.google.api.client.googleapis.json.GoogleJsonResponseException: 401 Unauthorized
    at com.google.api.client.googleapis.json.GoogleJsonResponseException.from(GoogleJsonResponseException.java:159)
    at com.google.api.client.googleapis.json.GoogleJsonResponseException.execute(GoogleJsonResponseException.java:187)
    at com.google.api.client.googleapis.services.GoogleClient.executeUnparsed(GoogleClient.java:115)
    at com.google.api.client.http.json.JsonHttpRequest.executeUnparsed(JsonHttpRequest.java:112)
    at com.google.api.services.bigquery.Bigquery$Jobs$Insert.executeUnparsed(Bigquery.java:1418)
    at com.google.api.services.bigquery.Bigquery$Jobs$Insert.execute(Bigquery.java:1442)
    at BigQueryJavaServiceAccount.main(BigQueryJavaServiceAccount.java:83)

Answer 1

I would first make sure that your time is synced using ntpd, and that it is set to your correct time zone: http://www.ntp.org/