Я пытаюсь использовать ar пакет neo4r conncet для neo4j.
С удаленного компьютера я могу подключить браузер по URL-адресу
http://<my remote machine IP address>:7474/browser
Однако мне не удается создать объект соединения со следующим кодом R.
library(neo4r)
library(magrittr)
con <- neo4r::neo4j_api$new(
url = "http://<my remote machine IP address>:7474",
user = "neo4j",
password = rstudioapi::askForPassword()
)
con$ping()
con$get_version()
, что дает мне
> con$get_version()
NULL
> con$ping()
[1] 404
Я ожидаю получить возврат 200 из con$ping(), 404 обозначает проблему URL.
Я не уверен, что проблема приводит к сбою.
Я надеюсь, что кто-то может дать мне подсказку об этом.
Спасибо!
Информация о версии:
neo4j community edition 4.0.0
neo4j browser 4.0.1
neo4r 0.1.3
R сессия информация
> sessionInfo()
R version 3.6.2 (2019-12-12)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04 LTS
Matrix products: default
BLAS: /usr/lib/x86_64-linux-gnu/blas/libblas.so.3.7.1
LAPACK: /usr/lib/x86_64-linux-gnu/lapack/liblapack.so.3.7.1
locale:
[1] LC_CTYPE=C.UTF-8 LC_NUMERIC=C LC_TIME=C.UTF-8 LC_COLLATE=C.UTF-8 LC_MONETARY=C.UTF-8
[6] LC_MESSAGES=C.UTF-8 LC_PAPER=C.UTF-8 LC_NAME=C LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] magrittr_1.5 neo4r_0.1.3
loaded via a namespace (and not attached):
[1] Rcpp_1.0.3 compiler_3.6.2 pillar_1.4.3 later_1.0.0 tools_3.6.2 digest_0.6.24
[7] jsonlite_1.6.1 tibble_2.1.3 lifecycle_0.1.0 pkgconfig_2.0.3 rlang_0.4.4 shiny_1.4.0
[13] cli_2.0.1 rstudioapi_0.11 curl_4.3 fastmap_1.0.1 httr_1.4.1 dplyr_0.8.4
[19] vctrs_0.2.2 attempt_0.3.0 tidyselect_1.0.0 glue_1.3.1 data.table_1.12.8 R6_2.4.1
[25] fansi_0.4.1 purrr_0.3.3 tidyr_1.0.2 promises_1.1.0 htmltools_0.4.0 assertthat_0.2.1
[31] mime_0.9 xtable_1.8-4 httpuv_1.5.2 crayon_1.3.4
Файл конфигурации neo4j
#*****************************************************************
# Network connector configuration
#*****************************************************************
# With default configuration Neo4j only accepts local connections.
# To accept non-local connections, uncomment this line:
dbms.connectors.default_listen_address=0.0.0.0
# You can also choose a specific network interface, and configure a non-default
# port for each connector, by setting their individual listen_address.
# The address at which this server can be reached by its clients. This may be the server's IP address or DNS name, or
# it may be the address of a reverse proxy which sits in front of the server. This setting may be overridden for
# individual connectors below.
dbms.connectors.default_advertised_address=localhost
# You can also choose a specific advertised hostname or IP address, and
# configure an advertised port for each connector, by setting their
# individual advertised_address.
# By default, encryption is turned off.
# To turn on encryption, an ssl policy for the connector needs to be configured
# Read more in SSL policy section in this file for how to define a SSL policy.
# Bolt connector
dbms.connector.bolt.enabled=true
#dbms.connector.bolt.tls_level=DISABLED
dbms.connector.bolt.listen_address=:7687
# HTTP Connector. There can be zero or one HTTP connectors.
dbms.connector.http.enabled=true
dbms.connector.http.listen_address=:7474
# HTTPS Connector. There can be zero or one HTTPS connectors.
dbms.connector.https.enabled=false
dbms.connector.https.listen_address=:7473
# Number of Neo4j worker threads.
#dbms.threads.worker_count=