Answers for "(psycopg2.operationalerror) connection to server at "localhost" (127.0.0.1), port 5453 failed"

Shell/Bash

psycopg2.OperationalError: could not connect to server: Connection refused Is the server running on host "127.0.0.1" and accepting TCP/IP connections on port 5432?

# to over ride this error you should up and run server
service postgresql start

Posted by: Guest on December-13-2020

(psycopg2.OperationalError) could not connect to server: Connection refused

pg_ctl -D /usr/local/var/postgres restart

Posted by: Guest on October-08-2021

Code answers related to "(psycopg2.operationalerror) connection to server at "localhost" (127.0.0.1), port 5453 failed"

psycopg2.OperationalError: FATAL: password authentication failed for user "postgres"
psycopg2.OperationalError: FATAL: role "postgres" does not exist
psycopg2 OperationalError: FATAL: role "postgres" does not exist
psycopg2.OperationalError: could not connect to server: Connection refused Is the server running on host "127.0.0.1" and accepting TCP/IP connections on port 5432?
OperationalError: (1698, "Access denied for user 'glueckauf_db'@'127.0.0.1'")
host_addresses = {"router": "192.168.1.1", "localhost": "127.0.0.1", "google": "8.8.8.8"} host_addresses.keys()
(psycopg2.OperationalError) could not connect to server: Connection refused
OperationalError: (1698, "Access denied for user 'root'@'localhost'")
OperationalError: (1698, "Access denied for user 'glueckauf_db'@'127.0.0.1'") python
conn = psycopg2 """select *
"Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused :"
failed to connect to localhost/127.0.0.1 ECONNREFUSED (Connection refused)
Domain name should not be "localhost" or "127.0.0.1 instamojo
'localhost' ([Errno 111] Connection refused)").
$link=mysql_connect("localhost","root","")
"errorMessage": "connect ECONNREFUSED 127.0.0.1:5432",
"error": "connect ECONNREFUSED 127.0.0.1:5432"
"Error: connect ECONNREFUSED 127.0.0.1:5432", " at TCPConnectWrap.afterConnect [as oncomplete]
onnect to server 127.0.0.1:27017, connection attempt failed
big sur python "psycopg2"
"Failed to load class "org.slf4j.impl.StaticLoggerBinder"."
conn = _connect(dsn, connection_factory=connection_factory, **kwasync) psycopg2.OperationalError: could not connect to server: Connection refused Is the server running on host "127.0.0.1" and accepting TCP/IP connections on port 5432?
mysqladmin: connect to server at 'localhost' failed
"connect ECONNREFUSED 127.0.0.1:5000"
"connect ECONNREFUSED 127.0.0.1:50001"
"connect ECONNREFUSED 127.0.0.1:587"
"connect ECONNREFUSED 127.0.0.1:5432"
"connect ECONNREFUSED 127.0.0.1:80"
2021-10-19 11:46:34.621 BST [15096] FATAL: role "User" does not exist psql: error: connection to server at "localhost" (::1), port 5432 failed: FATAL: role "User" does not exist
sqlite3.OperationalError: near "WHERE": syntax error
sqlite3.OperationalError: near "7": syntax error
connection string sql server c# instance "\"
"errorMessage": "connect ECONNREFUSED 127.0.0.1:5432", aws
"message": "connect ECONNREFUSED 127.0.0.1:3306" error
"message": "connect ECONNREFUSED 127.0.0.1:5432", graphql
PDO::__construct("mysql:host=localhost;port=
"SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder"."
Cast to ObjectId failed for value "t" at path "_id" for model "User"
"Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed: SocketException: Error connecting to 127.0.0.1:27017 :: caused by :: Connection refused : connect@src/mongo/shell/mongo.js"
OperationalError('FATAL: no pg_hba.conf entry for host "", user "postgres"
"MongoDB" [js] Error: couldn't connect to server 127.0.0.1:27017,
fp = fileopen(fname, "at", "");
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
couldn't connect to server 127.0.0.1:27017, connection attempt failed:
couldn't connect to server 127.0.0.1:27017, connection attempt failed :
couldn't connect to server 127.0.0.1:27017, connection attempt failed
ModuleNotFoundError("No module named 'psycopg2'")
'localhost' ([Errno 111] Connection refused)") mysql
ECONNREFUSED 127.0.0.1:9092"
aws "errorMessage": "Error: connect ECONNREFUSED 127.0.0.1:5432",

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Answers for "(psycopg2.operationalerror) connection to server at "localhost" (127.0.0.1), port 5453 failed"

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