https://wiki.korotkin.co.il/ 2026-04-10T22:31:19+00:00 https://wiki.korotkin.co.il/ https://wiki.korotkin.co.il/_media/wiki/logo.png text/html 2022-01-03T16:03:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.korotkin.co.il/kb/neo4j/code_snippits?rev=1641225830&do=diff Neo4j code snippits MATCH (n) OPTIONAL MATCH (n)-[r]-() WITH n,r LIMIT 50000 DELETE n,r RETURN count(n) as deletedNodesCount text/html 2022-01-03T16:03:50+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.korotkin.co.il/kb/neo4j/high_availability?rev=1641225830&do=diff NEO4J Availability High availability to neo4j: Clients -> HAproxy -> neo4j servers Linux preformance neo4j soft nofile 40000 neo4j hard nofile 40000 echo 'deadline' > /sys/block/sda/queue/scheduler cat /sys/block/sda/queue/scheduler noop [deadline] cfq