When asking a new question takes a lot of time

Question

My site contains more than 450,000 questions
When asking a new question takes a lot of time is it because the database is large and is there a solution to speed up asking the questions

Comments

I noticed that this plugin very slows down the site in versions q2a 1.8. After the removal of this plugin, the site normally fast openend.
https://github.com/amiyasahu/q2a-social-share

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The issue with that plugin was already reported. This happened in Q2A version 1.7 for me. The exact reason was an image creation function call causing memory leak.

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you may see this issue:
https://github.com/amiyasahu/q2a-social-share/issues/17

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I have the same problem, please how did you solve the problem?

Answer 1

I had this problem the solution is more RAM. or talk to your users and start over.

Comments

I will try 1.7.5

Did you mean Query logs
https://s14.postimg.org/42m5jcdc1/screenshot-www.sa3dny.net-2018.04.03-01-46-57.png

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That's right. Is there a particularly slow query in that?
Of course, it must be a log when asking a question.

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See this file details

https://docs.google.com/document/d/1u9aL_ZnSnbYr1jHduDikDY3ZoCxSP6KIjpudpgN4DMc/edit?usp=sharing

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It is a log of the question page after redirection. Comment out redirect process below. As a result, question page will not be shown after asking question.

qa-include/pages/ask.php (around L171)
Before:
qa_redirect(qa_q_request($questionid, $in['title'])); // our work is done here
After:
//qa_redirect(qa_q_request($questionid, $in['title'])); // our work is done here

Answer 2

To islam afify

Since other users will trouble by email, let's discuss in the new (this) answer section.

Comments

Thank you for your help
I've tired you a lot

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I wish for good luck.

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You have deleted the qa_posts table
The question is quickly asked. I think the problem is the number of big questions

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I have the same problem, please how did you solve the problem?

Answer 3

The cache update queries are slow because the indexes are not properly tuned. This has already been discussed and I have explained it here.

Create the following indexes:

CREATE INDEX `test_index_1` ON `qa_posts`(`type`, `acount`, `closedbyid`);
CREATE INDEX `test_index_2` ON `qa_posts`(`type`, `selchildid`, `closedbyid`);
CREATE INDEX `test_index_3` ON `qa_posts`(`type`, `amaxvote`, `closedbyid`);

Try again and report back the results. Currently:

cache_unaqcount: 2347.10 ms
cache_unselqcount: 2699.90 ms
cache_unupaqcount: 2103.15 ms

If you are a purist and don't want those changes you can remove them with:

DROP INDEX `test_index_1` ON `qa_posts`;
DROP INDEX `test_index_2` ON `qa_posts`;
DROP INDEX `test_index_3` ON `qa_posts`;

Comments

I did all the recommendations but nothing changed

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Have you restarted MySQL server?

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Yes, I also used MySQLTuner again and there are no recommendations

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I have the same problem, please how did you solve the problem?