Limiting Bolt Threads vs Connections

Given high levels of read/write transaction requests, some ingress transactions may be rejected by the Neo4j server and the below error may be reported in the Neo4j debug.log: ERROR [o.n.b.r.MetricsReportingBoltConnection] Unable to schedule bolt session <session_id> for execution since there… Read more →

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Database Compaction in 4.0 using Neo4j-admin copy

This article demonstrates using the neo4j-admin copy tool to reclaim un-used space occupied by neo4j store files. 1). Adding 100k nodes: foreach (x in range (1,100000) | create (n:testnode1 {id:x})). 2). Checking allocated ID range: MATCH (n:testnode1) RETURN ID(n) as… Read more →

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Connecting via Bolt when using Tunnelling or NAT

This article aims to provide a method to connect to the Neo4j database over bolt, via Neo4j browser where the bolt host is different from the IP of the instance itself and, in cases where the bolt host IP/port is… Read more →

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