Wordpress to Ghost Migration Update

I’ve read the Ghost 3.0 announcement and also the news about the new version of the migration plugin. I’ve installed Ghost 3.0 on my VPS and it’s working fine, and I’d like to export my WordPress blog posts to the Ghost one.

I’ve installed the plugin but it doesn’t work. After a few seconds the following message appears: “The site is experiencing technical difficulties. Please check your site admin email inbox for instructions.”

I guess this is due to my blog being quite large. I’ve got over 3,100 posts (it’s been up since 2005) and I guess the script needs more time (or memory, or file size permissions) to finish its work. Could somebody help to find the exact problem and how to solve it?

I’ve tried to change some PHP parameters in my WordPress’ VPS (I use EasyEngine there to automate some processes, but I don’t use EE on the Ghost VPS, that’s a different one). According to this support article I’ve changed this on the “custom.ini” file:

max_input_vars = 1234
max_memory_limit = 1024M
max_execution_time = 2000
upload_max_filesize =100M
post_max_size =100M

After restarting nginx and PHP the plugin still doesn’t work. Same error, even when I try to download the .json file. It always shows the error after 30s of thinking. I guess there is some 30 seconds value somewhere that has to be edited but I don’t find where, according to the EasyEngine docs it should work. In fact the ghost migrator info shows 1GB memory limit and 2000s execution time, so the problem lies somewhere else.

My WordPress folder is 2.2 GB in size, and my VPS has 11 GB of space available.
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