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Error in accessing Delta Tables

Shehan92
New Contributor II

I'm getting attached error in accessing delta lake tables in the data bricks workspace

Summary of error: Could not connect to md1n4trqmokgnhr.csnrqwqko4ho.ap-southeast-1.rds.amazonaws.com:3306 : Connection reset

Attached detailed error

1 ACCEPTED SOLUTION

Accepted Solutions

brickster_2018
Esteemed Contributor
Esteemed Contributor
Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to md1n4trqmokgnhr.csnrqwqko4ho.ap-southeast-1.rds.amazonaws.com:3306 : Connection reset
	at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:175)
	at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:110)
	at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1107)
	at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:502)
	at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:155)
	at org.mariadb.jdbc.Driver.connect(Driver.java:86)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341)
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:506)
	... 149 more

From the logs, the above is the "CausedBy" part. Connection issue with the metastore seems to be the primary issue and unrelated to Delta. you should be seeing this issue for any table.

View solution in original post

3 REPLIES 3

Hubert-Dudek
Esteemed Contributor III

It is problem with metastore, probably you just blocked traffic to that.

On that page you can also find urls/ips which should be allowed out/routed through internet gateway: https://docs.databricks.com/administration-guide/cloud-configurations/aws/customer-managed-vpc.html

We discussed it recently also on that post https://community.databricks.com/s/question/0D53f00001lLVGDCA4/not-able-to-run-notebook-even-when-cl...

brickster_2018
Esteemed Contributor
Esteemed Contributor
Caused by: java.sql.SQLNonTransientConnectionException: Could not connect to md1n4trqmokgnhr.csnrqwqko4ho.ap-southeast-1.rds.amazonaws.com:3306 : Connection reset
	at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.get(ExceptionMapper.java:175)
	at org.mariadb.jdbc.internal.util.exceptions.ExceptionMapper.getException(ExceptionMapper.java:110)
	at org.mariadb.jdbc.internal.protocol.AbstractConnectProtocol.connectWithoutProxy(AbstractConnectProtocol.java:1107)
	at org.mariadb.jdbc.internal.util.Utils.retrieveProxy(Utils.java:502)
	at org.mariadb.jdbc.MariaDbConnection.newConnection(MariaDbConnection.java:155)
	at org.mariadb.jdbc.Driver.connect(Driver.java:86)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95)
	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101)
	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341)
	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:506)
	... 149 more

From the logs, the above is the "CausedBy" part. Connection issue with the metastore seems to be the primary issue and unrelated to Delta. you should be seeing this issue for any table.

Kaniz
Community Manager
Community Manager

Hi @Shehan Madusanka​ , Are you still seeing the error or were you able to resolve it?

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