Real Device Single File Task Download Crash

Problem description

After configuring a single file download task. After a period of time, it was found that there was no data in the report. Analyze the reason.

Problem analysis

There is no data problem. First check whether task settings has Exception.
(1) Check the report data, there is nospecial settings

(2) Check whether task scheduling, delivery and warehousing are normal, and the warehousing rate is 0%.

(3) Test locally with postman
After multiple tests, it took more than 300 seconds to download 50M data locally, which appeared to be a task timeout.

The file is too large. I downloaded part of it to check the effect. I added the Range header and downloaded the first 10M. I found that the data did not take effect. It was still 50M downloaded.

(4) Mechanism to confirm this part with the background
Mechanism: Considering the cost issue, the real machine only supports a maximum download of 20M single file.

Cause of the problem

The URL file of customer settings are 50M, and Tingyun supports a maximum download of 20M. Because the data times out, the data cannot be returned, resulting in a crash failure;

Failed to add Range. There is a problem with the customer URL mechanism. The customer has a size field in the URL, which forces the corresponding number of bytes to be downloaded, so adding the range later will not take effect;

Solution

Just adjust the test file to less than 20M.

Real Device Single File Task Download Crash

Problem description#

Problem analysis#

Cause of the problem#

Solution#

Problem description

Problem analysis

Cause of the problem

Solution