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Frequently Asked Question

FAQ / Dedicated JVM


What are the causes for MYSQL jdbc exception error?



What are the causes for MYSQL jdbc exception error?


The causes for the occurrence of JDBC error are mentioned as below.

1] User may have entered wrong IP Address or Hostname in JDBC URL.

2] Sometimes the Local DNS Server may not recognize the 'hostname' in JDBC URL.

3] In case the user enters incorrect Port number in JDBC URL or else misses it, then it may result in error.

4] In rare situations like, block occurred between Java and DB may disable the connections, for e.g. 'Firewall or Proxy'.

5] If the Database Server is facing downtime, it may also result in JDBC error.

6] When the database server fails to receive either TCP or IP connections, it will also create JDBC error.

Note: The chances of the cases 5 & 6 occurring are very rare if the server is up and accepts connection.

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