$ DELETE wp_comments, wp_commentmeta FROM wp_comments LEFT JOIN wp_commentmeta ON (wp_comments.comment_ID = wp_commentmeta.comment_id) WHERE comment_content LIKE '%medical%' OR comment_content LIKE '%vascular%' OR comment_content LIKE '%syndrome%';
Query OK, 71295 rows affected (1 min 20.884 sec)

$ DELETE wp_comments, wp_commentmeta FROM wp_comments LEFT JOIN wp_commentmeta ON (wp_comments.comment_ID = wp_commentmeta.comment_id) WHERE comment_content LIKE '%medical%' OR comment_content LIKE '%vascular%' OR comment_content LIKE '%syndrome%';
Query OK, 71295 rows affected (1 min 20.884 sec)

$ DELETE wp_comments, wp_commentmeta FROM wp_comments LEFT JOIN wp_commentmeta ON (wp_comments.comment_ID = wp_commentmeta.comment_id) WHERE comment_content LIKE '%carcinoma%';
Query OK, 18118 rows affected (32.907 sec)

$ fallocate -l 4G /swapfile
$ chmod 600 /swapfile
$ mkswap /swapfile
Setting up swapspace version 1, size = 4 GiB (4294963200 bytes)
no label, UUID=f7a17415-4f62-4c55-a775-65bd65b37fe5

/var/tmp/phd/log/daemons.log {
	daily
	missingok
	rotate 14
	compress
	delaycompress
	notifempty
}