The document discusses graph databases and their properties. Graph databases are structured to store graph-based data by using nodes and edges to represent entities and their relationships. They are well-suited for applications with complex relationships between entities that can be modeled as graphs, such as social networks. Key graph database technologies mentioned include Neo4j, OrientDB, and TinkerPop which provides graph traversal capabilities.
The document discusses graph databases and their properties. Graph databases are structured to store graph-based data by using nodes and edges to represent entities and their relationships. They are well-suited for applications with complex relationships between entities that can be modeled as graphs, such as social networks. Key graph database technologies mentioned include Neo4j, OrientDB, and TinkerPop which provides graph traversal capabilities.
68. /etc/security/limits.conf にos user毎にopen可能なfile
descripterや起動できる process数を設定
設定値をあげることで Too many open files エラーが発生しにくくな
る
(例) os user u の file descripterとprocess数の上限を変更
u soft nofile 65535
u hard nofile 65535
u soft nproc 1006500
u hard nproc 1006500
Kernel設定 ~limits.conf~
68