apoc.log.stream

Procedure APOC Core

apoc.log.stream('neo4j.log', { last: n }) - retrieve log file contents, optionally return only the last n lines

Signature

apoc.log.stream(path :: STRING?, config = {} :: MAP?) :: (lineNo :: INTEGER?, line :: STRING?, path :: STRING?)

Input parameters

Name	Type	Default
path	STRING?	null
config	MAP?	{}

Name

Type

Default

path

STRING?

null

config

MAP?

{}

Output parameters

Name	Type
lineNo	INTEGER?
line	STRING?
path	STRING?

Name

Type

lineNo

INTEGER?

line

STRING?

path

STRING?

Usage Examples

The following returns the last 10 lines in neo4j.log:

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

Table 1. Results
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"