Android Volley double post when have slow request

Question

I have a problem with Volley POST request on slow network. Everytime I see BasicNetwork.logSlowRequests in my LogCat, my POST request is executed twice or more

Answer 1

This works for me.

public class MyRetryPolicyWithoutRetry implements RetryPolicy
{
    @override
    public int getCurrentTimeout()
    {
        return CONNECTION_TIME_OUT; /200000/
    }

    @Override
    public int getCurrentRetryCount()
    {
        return 0;
    }

    @Override
    public void retry(VolleyError error) throws VolleyError
    {
        throw(error);
    }
}

To use:

request.setRetryPolicy(new MyRetryPolicyWithoutRetry());

Answer 2

Tried lot of things but in the end nothing helped. Finally, I figured out following combination of changes:

sr.setRetryPolicy(new DefaultRetryPolicy(0,-1, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));

And in your hurl connection in application class, add this:

httpsURLConnection.setChunkedStreamingMode(0);

This worked smoothly to stop Volley hitting multiple request at server.

Answer 3

The only way I got the double requests to stop was to set the retry policy retries to -1

request.setRetryPolicy(new DefaultRetryPolicy(0, -1, 0));

I think this is because the DefaultRetryPolicy's logic for attempts remaining returns true if retryCount is 0 and Max retries is also 0 in the hasAttemptRemaining() method:

protected boolean hasAttemptRemaining() {
    return this.mCurrentRetryCount <= this.mMaxNumRetries;
}

Answer 4

correcting the android date fixes my problem unfortunately for testing purpose i have changed my android date and get ssl security error.

Answer 5

I managed to fix this by configuring HttpURLConnection like this:

connection.setChunkedStreamingMode(0);

I started a discussion about this in Volley email list (https://groups.google.com/forum/#!topic/volley-users/8PE9dBbD6iA).

Answer 6

You must set the RetryPolicy to 0 retries and ensure that the timeout is bigger than the server timeout.

setRetryPolicy(new DefaultRetryPolicy("bigger than server timeout",
                                      0,
                                      DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));