|| apoc.log.stream - APOC 核心文档 - Neo4j 文档

apoc.log.stream

详情
语法	`apoc.log.stream(path [, config ]) :: (lineNo, line, path)`
描述	返回给定日志文件的内容，可选地只返回最后 n 行。此过程要求用户具有管理员角色。
输入参数	名称	类型	描述
	`path`	`STRING`	要读取的日志文件名称。
	`config`	`MAP`	`{ last :: INTEGER }`。默认值为：`{}`。
返回参数	名称	类型	描述
	`lineNo`	`INTEGER`	行号。
	`line`	`STRING`	行的内容。
	`path`	`STRING`	日志文件路径。

使用示例

要使用 apoc.log.stream 过程，用户必须拥有 admin 角色，否则该过程将抛出错误 permission has not been granted for user 'xxx'，这是为了确保只有管理员才能访问可能提供敏感数据的日志。

以下返回 neo4j.log 中的最后 10 行

CALL apoc.log.stream("neo4j.log", {last: 10});

结果
lineNo	line	path
12827	"2020-11-16 11:12:10.197+0000 WARN The client is unauthorized due to authentication failure."	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12826	"2020-11-16 11:12:09.967+0000 WARN The client is unauthorized due to authentication failure."	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12825	"2020-11-16 09:43:39.332+0000 INFO Called db.clearQueryCaches(): Query cache already empty."	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12824	"2020-11-12 16:18:44.392+0000 INFO LabelPropagationStreamProc: overall memory usage 27 KiB"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12823	"2020-11-12 16:18:44.391+0000 INFO [neo4j.BoltWorker-5 [bolt] [/127.0.0.1:51704] ] LabelPropagation :: Finished"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12822	"2020-11-12 16:18:44.391+0000 INFO [gds-3] LabelPropagation 99%"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12821	"2020-11-12 16:18:44.391+0000 INFO [gds-3] LabelPropagation 98%"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12820	"2020-11-12 16:18:44.391+0000 INFO [gds-3] LabelPropagation 97%"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12819	"2020-11-12 16:18:44.391+0000 INFO [gds-3] LabelPropagation 96%"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"
12818	"2020-11-12 16:18:44.391+0000 INFO [gds-3] LabelPropagation 95%"	"/home/markhneedham/.local/share/neo4j-relate/dbmss/dbms-8c3607ed-fe8d-42de-9be9-075d86babcfe/logs/neo4j.log"