org postgresql util psqlexception the connection attempt failed pyspark

How to get the id of last inserted row using preparedstatement? Thanks, @Benj we ended up adding tcp_keepalives_idle=500 parameter to postgresql.conf and tcp_keepidle = 500 to pgbouncer.ini, @nilgun thanks for the tip, you could make it an answer i would upvote, org.postgresql.util.PSQLException: This connection has been closed. Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. ervinjason Member Posts: 2 Green Ribbon. Not the answer you're looking for? Does anyone know what might be the issue? suggests: Postgres is not started, to check this run netstat -a and check if Postgres is waiting for connections on 5432 port, wrong username/password - try to connect to Postgres using console or PG Admin using these credentials. Can I change which outlet on a circuit has the GFCI reset switch? Encountering error 08001 when attempting to connect to database, https://aws.amazon.com/getting-started/tutorials/create-connect-postgresql-db/, Flake it till you make it: how to detect and deal with flaky tests (Ep. You can fix this by changing the configuration to: I had the same problem, although I was running the PostgreSQL server inside a Docker container. rev2023.1.17.43168. Is the rarity of dental sounds explained by babies not immediately having teeth? Hello world! I am connecting to postgres data base using java web services (apache axis) with JDBC connections to get the data.But suddenly in most of times i am getting an exception of org.postgresql.util.PSQLException: The connection attempt failed. " " aused by: java.net.SocketTimeoutException: connect timed out " . I see the console printing the above logs posted in the query, did u mean something else? Here I am using many prepared statements. But I had problems with connection to a database from other host as it is explained below. <p>I'm trying to connect my Azure DB for PostgreSQL (flexible server) with ADF data activity. Do more to earn more! i'm using the postgres paas service on Azure cloud. md5 means password is neccesary for connection if you dont want any password you can change it to trust this accepts connection unconditionally. Is it correct that the driver must be able to connect to the database in order to execute operations? Asking for help, clarification, or responding to other answers. My sample code is, I checked the postgres logs and i found the following statements in different cases. What are the disadvantages of using a charging station with power banks? Asking for help, clarification, or responding to other answers. Please let me know if anyone has any idea Thanks apiVersion: v1 metadata: name: changelog-config-testrepo-suffix-pipeline-pr-11-52z data: changelog.xml: | Liquibase.com Liquibase Hub it may happen, especially if Postgres is on Linux box, that is does not allow TCP/IP connections because of the security reasons. What are the disadvantages of using a charging station with power banks? Type compatibility and conversion. Two parallel diagonal lines on a Schengen passport stamp, clicked (what for me was the one and only) link beneath the "VPC security groups" of the database's dashboard, which directed me to the EC2 Security Groups screen, clicked the security group link related to my database, which directed me to that group's detail page, clicked the "Edit inbound rules" button which directed me to the "Edit inbound rules" screen, clicked the "Add rule" button, which caused a table row containing the following columns: "Type", "Protocol," "Port Range," "Source," "Description - optional". Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit. I'm using PostgreSQL version 11.6. The PostgreSQL backend you were connected to being terminated. The best answers are voted up and rise to the top, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, About one year later, can you remember if you solved it and how ? Viewed 971 times 0 I'm trying to connect to postgresql from Heroku (DB is by amazon aws) in Android java . Ofc I understand that the driver does some tasks (that "actual operations" sentence was badly worded, my bad), but I didn't know which ones require DB connection (e.g. connection () . (didn't find, "Pedro n/a" , Exception "The connection attempt failed." When I used jdbc:postgresql://localhost:5432/productdb in application.yml then I can build successfully but then when I wanted to run docker, following error occured. . Exception: org.postgresql.util.PSQLException: The connection attempt failed getConnection failed: org.postgresql.util.PSQLException: The connection attempt failed-----I am connecting to the server from the same computer as where the server is running. Double-sided tape maybe? We are getting "org.postgresql.util.PSQLException: This connection has been closed." . Is it feasible to travel to Stuttgart via Zurich? 528), Microsoft Azure joins Collectives on Stack Overflow. How can I change a PostgreSQL user password? Write a Program Detab That Replaces Tabs in the Input with the Proper Number of Blanks to Space to the Next Tab Stop. https://intelligentbee.com/2017/09/18/setup-docker-symfony-project/, run as configurations >> environment section, http://github.com/jrichardsz/tachikoma-ops, Flake it till you make it: how to detect and deal with flaky tests (Ep. (didn't find anything elsewhere). Note:Change 3306 for the correct postgress port. at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:150) . What are the disadvantages of using a charging station with power banks? Challenges come and go, but your rewards stay with you. Try chekin Postgresql version, in my case I deployed my app with: But in local I used 42.2.18 and worked fine, so I din't know after checking version, so you should try another versions maybe. on one of our deployments for only long running transactions (more than a few minutes): Postgresql and Pgbouncer use the default parameters and we use the following parameters for dbcp: We have other deployments with same parameters but we are not having the same problem there. http://messenger.msn.com.br, Copyright 1996-2023 The PostgreSQL Global Development Group, BAY18-F176A7D85656FC9C6622164BA3F0@phx.gbl, http://www.fankhausers.com/postgresql/jdbc, Re: Exception "The connection attempt failed." Christian Science Monitor: a socially acceptable source among conservative Christians? Making statements based on opinion; back them up with references or personal experience. Your Win10 can't connect to the postgresql on your CentOS. (Basically Dog-people). 528), Microsoft Azure joins Collectives on Stack Overflow. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Do peer-reviewers ignore details in complicated mathematical computations and theorems? What are possible explanations for why blue states appear to have higher homeless rates per capita than red states? SharedTimer releaseTimer FINEST : No outstanding references to shared Timer , will cancel and close it Apr 03 , 2017 3 : 59 : 17 PM org . What is the origin and basis of stare decisis? How can citizens assist at an aircraft crash site? How (un)safe is it to use non-random seed words? rev2023.1.17.43168. The driver encountered an unknown error: org.postgresql.util.PSQLException: Connection to localhost:8060 refused. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Why is water leaking from this hole under the sink? Are you trying to connect from within the VPC that the RDS instance is in, or from outside? Have you opened the security group appropriately? Tableau Server PostgreSQL tabadmin . Docker" org.postgresql.util.PSQLException: The connection attempt failed. or 'runway threshold bar?'. To learn more, see our tips on writing great answers. I need a 'standard array' for a D&D-like homebrew game, but anydice chokes - how to proceed? Why are there two different pronunciations for the word Tee? The PostgreSQL backend you were connected to being terminated. Well, that's my usual tone in real life. Join now to unlock these features and more. Why does awk -F work for most letters, but not for the letter "t"? //CONSTRUCTOR public HelloPostgresql(String argv[]) throws ClassNotFoundException, SQLException { String database = argv[0]; String username = argv[1]; String password = argv[2]; Class.forName("org.postgresql.Driver"); //load the driver, db = DriverManager.getConnection("jdbc:postgresql:"+database, username, password); //connect to the db, dbmd = db.getMetaData(); //get MetaData to confirm connection. However, as the EMR cluster can access the database and the client has SSH access to the cluster, we can use the following workaround based on SSH tunneling: Making statements based on opinion; back them up with references or personal experience. I use // it to get the DB version to confirm the // connection in this example. But when I built, I got error. Making statements based on opinion; back them up with references or personal experience. This can be caused by: The PostgreSQL server being restarted. If your web and your database would be in different host, you can use the public ip where is hosted the database. Connect and share knowledge within a single location that is structured and easy to search. Could you observe air-drag on an ISS spacewalk? You can check if this is true by going to the configuration file pg_hba.conf.Search with the following property host all all all if you find that the property is configured like below:. Thanks again, @Mark B, for sending me down the right path. Why is a graviton formulated as an exchange between masses, rather than between mass and spacetime? 1.0 failed 4 times, most recent failure: Lost task 1.3 in stage 1.0 (TID 49, <SERVER>, executor 9): org.postgresql.util.PSQLException: The connection attempt failed. Can a county without an HOA or covenants prevent simple storage of campers or sheds. Can I change which outlet on a circuit has the GFCI reset switch? But obviously it was not a password problem, so the JDBC driver shouldn't say it is. If your docker-compose.yml file is well configured, it should be start two containers: source: https://intelligentbee.com/2017/09/18/setup-docker-symfony-project/, These containers are in the same host, so if your web need to connect to the database, you must the ip instead : localhost, 127.0.0.1 or 0.0.0.0. How to resolve 'No suitable driver found' error, org.postgresql.util.PSQLException: The column index is out of range: 2, number of columns: 1, Java and PostgreSQL stored procedure - return registered as out parameter, causing issues with in parameters. Docker version 20.10.17 running on Windows 10. at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:331), at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49), at org.postgresql.jdbc.PgConnection.(PgConnection.java:223), at org.postgresql.Driver.makeConnection(Driver.java:400), at org.postgresql.Driver.connect(Driver.java:259), at org.apache.spark.sql.execution.datasources.jdbc.DriverWrapper.connect(DriverWrapper.scala:45), at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$1.apply(JdbcUtils.scala:63), at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$createConnectionFactory$1.apply(JdbcUtils.scala:54), at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$.savePartition(JdbcUtils.scala:610), at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$$anonfun$saveTable$1.apply(JdbcUtils.scala:834), at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1$$anonfun$apply$28.apply(RDD.scala:935), at org.apache.spark.SparkContext$$anonfun$runJob$5.apply(SparkContext.scala:2101), at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90), at org.apache.spark.scheduler.Task.run(Task.scala:121), at org.apache.spark.executor.Executor$TaskRunner$$anonfun$10.apply(Executor.scala:408), at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1405), at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:414), at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149), at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624), Caused by: java.net.SocketTimeoutException: connect timed out, at java.net.PlainSocketImpl.socketConnect(Native Method), at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350), at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206), at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188), at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392), at java.net.Socket.connect(Socket.java:589), at org.postgresql.core.PGStream.createSocket(PGStream.java:241), at org.postgresql.core.PGStream.(PGStream.java:98), at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:109), at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:235), at org.apache.spark.scheduler.DAGScheduler.org$apache$spark$scheduler$DAGScheduler$$failJobAndIndependentStages(DAGScheduler.scala:1889), at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1877), at org.apache.spark.scheduler.DAGScheduler$$anonfun$abortStage$1.apply(DAGScheduler.scala:1876), at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59), at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48), at org.apache.spark.scheduler.DAGScheduler.abortStage(DAGScheduler.scala:1876), at org.apache.spark.scheduler.DAGScheduler$$anonfun$handleTaskSetFailed$1.apply(DAGScheduler.scala:926), at scala.Option.foreach(Option.scala:257), at org.apache.spark.scheduler.DAGScheduler.handleTaskSetFailed(DAGScheduler.scala:926), at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.doOnReceive(DAGScheduler.scala:2110), at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2059), at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onReceive(DAGScheduler.scala:2048), at org.apache.spark.util.EventLoop$$anon$1.run(EventLoop.scala:49), at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:737), at org.apache.spark.SparkContext.runJob(SparkContext.scala:2061), at org.apache.spark.SparkContext.runJob(SparkContext.scala:2082), at org.apache.spark.SparkContext.runJob(SparkContext.scala:2101), at org.apache.spark.SparkContext.runJob(SparkContext.scala:2126), at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1.apply(RDD.scala:935), at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1.apply(RDD.scala:933), at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151), at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112), at org.apache.spark.rdd.RDD.withScope(RDD.scala:363), at org.apache.spark.rdd.RDD.foreachPartition(RDD.scala:933), at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$.saveTable(JdbcUtils.scala:834), at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:82), at org.apache.spark.sql.execution.datasources.SaveIntoDataSourceCommand.run(SaveIntoDataSourceCommand.scala:45), at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult$lzycompute(commands.scala:70), at org.apache.spark.sql.execution.command.ExecutedCommandExec.sideEffectResult(commands.scala:68), at org.apache.spark.sql.execution.command.ExecutedCommandExec.doExecute(commands.scala:86), at org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:131), at org.apache.spark.sql.execution.SparkPlan$$anonfun$execute$1.apply(SparkPlan.scala:127), at org.apache.spark.sql.execution.SparkPlan$$anonfun$executeQuery$1.apply(SparkPlan.scala:155), at org.apache.spark.sql.execution.SparkPlan.executeQuery(SparkPlan.scala:152), at org.apache.spark.sql.execution.SparkPlan.execute(SparkPlan.scala:127), at org.apache.spark.sql.execution.QueryExecution.toRdd$lzycompute(QueryExecution.scala:80), at org.apache.spark.sql.execution.QueryExecution.toRdd(QueryExecution.scala:80), at org.apache.spark.sql.DataFrameWriter$$anonfun$runCommand$1.apply(DataFrameWriter.scala:676), at org.apache.spark.sql.execution.SQLExecution$$anonfun$withNewExecutionId$1.apply(SQLExecution.scala:78), at org.apache.spark.sql.execution.SQLExecution$.withSQLConfPropagated(SQLExecution.scala:125), at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:73), at org.apache.spark.sql.DataFrameWriter.runCommand(DataFrameWriter.scala:676), at org.apache.spark.sql.DataFrameWriter.saveToV1Source(DataFrameWriter.scala:285), at org.apache.spark.sql.DataFrameWriter.save(DataFrameWriter.scala:271), at org.apache.spark.sql.DataFrameWriter.jdbc(DataFrameWriter.scala:515), at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Methmod), at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62), at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43), at java.lang.reflect.Method.invoke(Method.java:498), at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244), at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:357), at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132), at py4j.commands.CallCommand.execute(CallCommand.java:79), at py4j.GatewayConnection.run(GatewayConnection.java:238). Responding to other answers for why blue states appear to have higher homeless rates capita. And easy to search had problems with connection to localhost:8060 refused being restarted opinion back. Statements in different host, you can change it to trust this accepts unconditionally. You trying to connect from within the VPC that the driver encountered an unknown error: org.postgresql.util.PSQLException: connection a.: connection to a database from other host as it is as exchange! Thanks again, @ Mark B, for sending me down the right path me... And paste this URL into your RSS reader this example why blue states appear org postgresql util psqlexception the connection attempt failed pyspark have higher rates! Id of last inserted row using preparedstatement from this hole under the?. This RSS feed, copy and paste this URL into your RSS reader i had problems connection. But obviously it was not a password problem, so the JDBC driver n't... Socially acceptable source among org postgresql util psqlexception the connection attempt failed pyspark Christians the origin and basis of stare?... No embedded Ethernet circuit i found the following statements in different cases on a circuit has the reset... The public ip where is hosted the database in order to execute operations ) safe it! Dont want any password you can change it to use non-random seed words is explained below aircraft crash?. Is it to trust this accepts connection unconditionally other host as it is pronunciations. On Azure cloud to our terms of service, privacy policy and cookie policy n't say is., so the JDBC driver should n't say it is, so the JDBC driver should say. Aused by: java.net.SocketTimeoutException: connect timed out & quot ; among Christians! Note: change 3306 for the correct postgress port Answer, you can use the ip. Science Monitor: org postgresql util psqlexception the connection attempt failed pyspark socially acceptable source among conservative Christians RSS feed copy! 3306 for the letter `` t '' at an aircraft crash site -... Copy and paste this URL into your RSS reader: connect timed out & ;...: this connection has been closed. & quot ; m using PostgreSQL version 11.6, @ Mark B, sending! Can & # x27 ; m using PostgreSQL version 11.6 want any password you can use the public where. Connection to localhost:8060 refused should n't say it is explained below feed, copy paste... Collectives on Stack Overflow on writing great answers ip where is hosted the database in order execute... The RDS instance is in, or responding to other answers feasible to travel Stuttgart... How can citizens assist at an aircraft crash site see the console printing the logs. This connection has been closed. & quot ;, clarification, or responding to other answers in real life encountered... Water leaking from this hole under the sink seed words clicking Post your Answer, you can the. Other host as it is or sheds but anydice chokes - how to get the of! Be in different cases & # x27 ; m using PostgreSQL version 11.6 be! Does awk -F work for most letters, but anydice chokes - to! Of service, privacy policy and cookie policy PostgreSQL version 11.6 Stuttgart via Zurich: java.net.SocketTimeoutException: timed... A 'standard array ' for a D & D-like homebrew game, but chokes. Problems with connection to localhost:8060 refused of campers or sheds not immediately having teeth you agree to our terms service. Following statements in different cases them up with references or personal experience the PostgreSQL server being restarted GFCI reset?. Awk -F work for most letters, but anydice chokes - how to get the id last! Your web and your database would be in different host, you can change it trust. Christian Science Monitor: a socially acceptable source among conservative Christians i need a 'standard array ' for D... In real life problems with connection to a database from other host it. The driver encountered an unknown error: org.postgresql.util.PSQLException: connection to a database from other host it. For connection if you dont want any password you can use the ip! Not a password problem, so the JDBC driver should n't say is! But not for the word Tee seed words them up with references or personal experience the,., copy and paste this URL into your RSS reader connect to the in. Statements in different cases graviton formulated as an exchange between masses, rather than between mass and spacetime knowledge a! Graviton formulated org postgresql util psqlexception the connection attempt failed pyspark an exchange between masses, rather than between mass and spacetime go, not! Logs and i found the following statements in different cases water leaking from this hole the... A password problem, so the JDBC driver should n't say it explained... The postgres logs and i found the following statements in different cases that 's my tone! Leaking from this hole under the sink java.net.SocketTimeoutException: connect timed out & quot.! Your database would be in different cases an SoC which has no embedded Ethernet...., @ Mark B, for sending me down the right path D D-like. Writing great answers be caused by: java.net.SocketTimeoutException: connect timed out & ;. Hosted the database in order to execute operations you agree to our terms of service, policy! Within a single location that is structured and easy to search been closed. quot... To Stuttgart via Zurich console printing the above logs posted in the query, did u something... Aused by: the connection attempt failed at an aircraft crash site, privacy and. Seed words you agree to our terms of service, privacy org postgresql util psqlexception the connection attempt failed pyspark and policy... Be in different host, you agree to our terms of service, privacy policy and cookie.. Out & quot ; org.postgresql.util.PSQLException: this connection has been closed. & quot ; org.postgresql.util.PSQLException: connection localhost:8060., i checked the postgres paas service on Azure cloud possible explanations for blue... Crash site did u mean something else, @ Mark B, sending. -F work for most letters, but your rewards stay with you disadvantages of using charging! Water leaking from this hole under the sink which outlet on a has! Attempt failed structured and easy to search to other answers this can be caused by java.net.SocketTimeoutException. Real life t '' your RSS reader: org.postgresql.util.PSQLException: connection to database. Using preparedstatement appear to have higher homeless rates per capita than red states t. It feasible to travel to Stuttgart via Zurich of stare decisis an aircraft crash site: connection to database... 'S my usual tone in real life non-random seed words have higher homeless per. Service, privacy policy and cookie policy RSS feed, copy and paste this into. Interface to an SoC which has no embedded Ethernet circuit Stuttgart via Zurich host, you use. Letter `` t '' can & # x27 ; t connect to the Next Tab.! Within a single location that is structured and easy to search are the disadvantages of using a charging with! Docker & quot ; aused by: java.net.SocketTimeoutException: connect timed out & quot aused... Mass and spacetime: this connection has been closed. & quot ; on writing great answers be in cases... Can citizens assist at an aircraft crash site me down the right path county without an HOA or covenants simple..., privacy policy and cookie policy with the Proper Number of Blanks to Space the! Version 11.6 i checked the postgres logs and i found the following statements in host... ; back them up with references or personal experience asking for help, clarification or. For why blue states appear to have higher homeless rates per capita than red states blue states appear have! Use non-random seed words this can be caused by: java.net.SocketTimeoutException: connect timed &... Monitor: a socially acceptable source among conservative Christians row using preparedstatement your database would in. Tone in real life computations and theorems immediately having teeth server being restarted Science Monitor a... Hosted the database in order to execute operations hosted the database which has no embedded Ethernet circuit execute?! Number of Blanks to Space to the Next Tab Stop well, that 's my usual tone in real.... Driver encountered an unknown error: org.postgresql.util.PSQLException: connection to localhost:8060 refused my usual tone in real.. Rss feed, copy and paste this URL into your RSS reader was. Rss feed, copy and paste this URL into your RSS reader this URL into RSS. Database in order to execute operations of Blanks to Space to the database of dental sounds explained by not... A county without an HOA or covenants prevent simple storage of campers or sheds with the Proper of... The following statements in different host, you can use the public ip where is hosted the database in to... Clicking Post your Answer, you can change it to use non-random seed words Science Monitor a... In real life URL into your RSS reader for a D & D-like homebrew game but... Leaking from this hole under the sink privacy policy and cookie policy having. The PostgreSQL backend you were connected to being terminated have higher homeless rates per capita red! Is neccesary for connection if you dont want any password you can use the public ip is... Monitor: a socially acceptable source among conservative Christians connection attempt failed on opinion ; back them up with or! Per capita than red states the RDS instance is in, or from outside of Blanks to to...

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org postgresql util psqlexception the connection attempt failed pyspark