As you may mention,my website always displays ‘service unavailable’ with no predictions.Indubitably it is caused by high CPU and memory utilization on my shared hosting server that I had talked for many times.
That messed me up because I tried thousands ways to optimize my blog in order to prevent the issue occurring,but failed all the time.Recently I visited a lot of support forums which are concerning on WordPress Platform and I found that there are a number of people who meet the same problem with me.They all pointed the problem into database.
So I checked it out by phpMyAdmin and saw the sizes of some data are unwonted and redundant,especially under wp_option which is 1.3MB.I deleted some unnecessary lines and cron to clean up the database and went back to Option-Permanent links to update it.Then I checked again under wp_option,there has been down into 200KB only.
I refresh my blog for many times and till now it works nicely.I hope when you meet ‘service unavailable’ issue here,leave your words to me so that I can keep monitoring and going to fix the issue as soon as possible.And if you have any idea to help me do better regarding to that matter,you’re most welcome!
May I be lucky forever!