The following errors started to happen the 4th March around 12:00 and 15:00 the big raise:
https://logstash.wikimedia.org/goto/8d81d3f60f306106d8b954797e6b4af7
level ERR logsource mw1290 message PHP Fatal error: Allowed memory size of 692060160 bytes exhausted (tried to allocate 1130496 bytes) in /srv/mediawiki/php-1.35.0-wmf.22/vendor/wikimedia/cdb/src/Reader/DBA.php on line 48 normalized_message PHP Fatal error: Allowed memory size of 692060160 bytes exhausted (tried to allocate 1130496 bytes) in /srv/mediawiki/php-1.35.0-wmf.22/vendor/wikimedia/cdb/src/Reader/DBA.php on line 48