I wrote a long post with many pictures. The publishing process had no problem.
I was redirected to the result page. Everything seemed perfect. So I deleted my draft.
After a few seconds, I refreshed my blog page. That post disappeared.
I could'nt find any clue on what's going on at all.
Till one hour later, there came a notice in homepage telling that the server was in read only model.

I believed that this notice should came earlier.