Error message: Request-URI Too Large

I'm using multi-site (network path). I currently have over 160,000 blogs.

The past 3 days I have been using Batch Create to upload 30,000 blogs at a time. It was working fine.

However, I tried to upload another 30,000 blogs and got the following error message:

Error message: Request-URI Too Large
The requested URLs length exceeds the capacity limit for this server.
Apache Srver at default Port 80.

Is the length increasing over time?

Here is the URL that created the error:

http://example.com/wp-admin/network/settings.php?page=batch-create&updatedmsg=UXVldWUgcHJvY2Vzc2luZyBlcnJvci4gVGhlc2UgZW1haWxzIGFyZSBub3QgdW5pcXVlOiA8dWw%2BPGxpPjE4QDMwMDE4OiBhZG1pbmExMjc4MDAsIGFkbWluYTEyNzgwMTwvbGk%2BPGxpPjE4QDMwMTE4OiBhZG1pbmExMjc5MDAsIGFkbWluYTEyNzkwMTwvbGk%2BPGxpPjE4QDMwMTgwOiBhZG1pbmExMjc5NTMsIGFkbWluYTEyNzk2MzwvbGk%2BPGxpPjE4QDMwMTgxOiBhZG1pbmExMjc5NTQsIGFkbWluYTEyNzk2NDwvbGk%2BPGxpPjE4QDMwMTgyOiBhZG1pbmExMjc5NTUsIGFkbWluYTEyNzk2NTwvbGk%2BPGxpPjE4QDMwMTgzOiBhZG1pbmExMjc5NTYsIGFkbWluYTEyNzk2NjwvbGk%2BPGxpPjE4QDMwMTg0OiBhZG1pbmExMjc5NTcsIGFkbWluYTEyNzk2NzwvbGk%2BPGxpPjE4QDMwMTg1OiBhZG1pbmExMjc5NTgsIGFkbWluYTEyNzk2ODwvbGk%2BPGxpPjE4QDMwMTg2OiBhZG1pbmExMjc5NTksIGFkbWluYTEyNzk2OTwvbGk%2BPGxpPjE4QDMwMTg3OiBhZG1pbmExMjc5NjAsIGFkbWluYTEyNzk3MDwvbGk%2BPGxpPjE4QDMwMTg4OiBhZG1pbmExMjc5NjEsIGFkbWluYTEyNzk3MTwvbGk%2BPGxpPjE4QDMwMTg5OiBhZG1pbmExMjc5NjIsIGFkbWluYTEyNzk3MjwvbGk%2BPGxpPjE4QDMwMjE4OiBhZG1pbmExMjgwMDAsIGFkbWluYTEyODAwMTwvbGk%2BPGxpPjE4QDMwMzE4OiBhZG1pbmExMjgxMDAsIGFkbWluYTEyODEwMTwvbGk%2BPGxpPjE4QDMwNDE4OiBhZG1pbmExMjgyMDAsIGFkbWluYTEyODIwMTwvbGk%2BPGxpPjE4QDMwNTE4OiBhZG1pbmExMjgzMDAsIGFkbWluYTEyODMwMTwvbGk%2BPGxpPjE4QDMwNjE4OiBhZG1pbmExMjg0MDAsIGFkbWluYTEyODQwMTwvbGk%2BPGxpPjE4QDMwNzE4OiBhZG1pbmExMjg1MDAsIGFkbWluYTEyODUwMTwvbGk%2BPGxpPjE4QDMwODE4OiBhZG1pbmExMjg2MDAsIGFkbWluYTEyODYwMTwvbGk%2BPGxpPjE4QDMwOTE4OiBhZG1pbmExMjg3MDAsIGFkbWluYTEyODcwMTwvbGk%2BPGxpPjE4QDMxMDE4OiBhZG1pbmExMjg4MDAsIGFkbWluYTEyODgwMTwvbGk%2BPGxpPjE4QDMxMTE4OiBhZG1pbmExMjg5MDAsIGFkbWluYTEyODkwMTwvbGk%2BPGxpPjE4QDMxMTgwOiBhZG1pbmExMjg5NTMsIGFkbWluYTEyODk2MzwvbGk%2BPGxpPjE4QDMxMTgxOiBhZG1pbmExMjg5NTQsIGFkbWluYTEyODk2NDwvbGk%2BPGxpPjE4QDMxMTgyOiBhZG1pbmExMjg5NTUsIGFkbWluYTEyODk2NTwvbGk%2BPGxpPjE4QDMxMTgzOiBhZG1pbmExMjg5NTYsIGFkbWluYTEyODk2NjwvbGk%2BPGxpPjE4QDMxMTg0OiBhZG1pbmExMjg5NTcsIGFkbWluYTEyODk2NzwvbGk%2BPGxpPjE4QDMxMTg1OiBhZG1pbmExMjg5NTgsIGFkbWluYTEyODk2ODwvbGk%2BPGxpPjE4QDMxMTg2OiBhZG1pbmExMjg5NTksIGFkbWluYTEyODk2OTwvbGk%2BPGxpPjE4QDMxMTg3OiBhZG1pbmExMjg5NjAsIGFkbWluYTEyODk3MDwvbGk%2BPGxpPjE4QDMxMTg4OiBhZG1pbmExMjg5NjEsIGFkbWluYTEyODk3MTwvbGk%2BPGxp