Created
September 7, 2018 03:11
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How to find out what 's 503 service unavailable causing with log message AH01067: Failed to read FastCGI header
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| Normally 503 service unavailable errors come from the server run out of memory. | |
| Case: It occurs only on a some pages | |
| ==> Try to find the code which take the most memory (pdf, importing, ...) | |
| Case: Whole site down | |
| ==> Check memory now by some tools such as: top, htop... | |
| Restart php-fpm | |
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