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Use this account type to connect MySQL Snaps with datasources that use MySQL Dynamic accounts. This account deals with the dynamically calculated values. You can specify the account properties as expressions referencing pipeline parameters. The values for dynamic accounts are not stored; hence, use them when requested.dynamic accounts are not stored; hence, use them when requested.

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Prerequisite

To ensure compatibility, we recommend that you use matching versions of MySQL driver and MySQL server for configuring your account. For example, when using server version 8.0.22, ensure that the driver version is also 8.0.22. For details, see the official MySQL article on version compatibility. 

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Parameter NameData TypeDescriptionDefault ValueExample 
LabelStringRequired. The name for the account. Preferably, update the account name if your project includes more than one account of the same type.N/AMySQL_DynamicAccount
JDBC Driver ClassStringThe class name of the JBDC driver. N/Acom.mysql.jdbc.Driver
JDBC JARsN/A

List of JDBC JAR files to be loaded. Click the + button on the right of the field to add a row.

Note

If you do not add any JDBC JARs, a default JDBC JAR file is loaded. The default JAR file does not support connectivity to MYSQL8. To connect to MYSQL8, you must upload JAR mysql-connector-java (v5.1.47 or v8).


N/A../shared/sqljdbc4-2.0.jar
JDBC DriverString

The software component enabling an application to interact with a databasecomponent enabling an application to interact with a database.

Note

When you use the relative path for the JDBC JAR file in accounts across different projects, the pipelines fail with the JAR FILE NOT FOUNDerror. Therefore, you must use the absolute path for the JDBC JAR file to run your pipelines successfully.


N/A.../shared/jsonappend.jsonProject Spaces/my_diagnostic_space/my_diagnostic /sqljdbc4-2.0.jar
Account propertiesFieldsetRequired. Input required for the application to connect to the database.

HostnameStringRequired. The Server address to which the application must connect.N/A_hostname
Port NumberIntegerRequired. Database server's port number to which the application must connect.3306_port
Database nameStringRequired. The database name to which the application must connect.N/A_database 
UsernameStringRequired. The user name that is allowed to connect to the database. It is used as the default user name when retrieving connections. The user name must be valid in order to set up the data source.N/A_username
PasswordStringRequired. The password used to connect to the data source. It is used as the default password when retrieving connections. The password must be valid in order to set up the data source.N/A_passsword
Configure SSH TunnelCheck box

Select this check box if the Snap must create an SSH tunnel dynamically for connecting the JCC node to the MySQL server. Once the operation is completed, the tunnel is closed.

If selected, the configuration details of the SSH tunnel must be provided.

Not selectedN/A
SSH Auth ModeString

Select the mode for authenticating the user on the SSH tunnel. The associated properties are displayed. 

The valid options are:

  • Password: If selected, the SSH Hostname, SSH Username and the SSH Password properties must be configured.
  • KeyFile: If selected, the SSH Hostname, SSH Username, KeyStore, KeyStore Password, Key alias, and Private Key Passphrase properties must be configured. 

This value is considered only if the Configure SSH Tunnel check box is selected.

PasswordPassword
SSH Hostname


String

The IP address or the domain name of the SSH server to which you want to connect.

This value is considered only if the Configure SSH Tunnel check box is selected.

N/A_sshhostname
         SSH Username

String

The SSH username for connecting to the tunnel. 

This value is considered only if the Configure SSH Tunnel check box is selected.

N/A_sshusername
         SSH Password

String

The password associated with the SSH user name. This field is required if Auth Mode is Password.

This value is considered only if the Configure SSH Tunnel check box is selected.

N/A_sshuserpassword
    KeyStore

String

The location of the keystore file. This field is required if SSH Auth Mode is KeyFile.

The file can be in SLDB, on the host machine that is hosting the JCC, or at any other remote location. For a local file, click Image Modified to select the appropriate file using the file browser. You can also upload the file using any protocol such as https, ftp, sldb, and sftp.

This value is considered only if the Configure SSH Tunnel check box is selected.

N/A_keystorepath
KeyStore Password

String

The password required to access the keystore file. This field is required if SSH Auth Mode is KeyFile.

This value is considered only if the Configure SSH Tunnel check box is selected.

N/A_keystorepassword
Key alias

String

The identifier or label of the private key to be used from the keystore. This field is required if the SSH Auth Mode is KeyFile.

This value is considered only if the Configure SSH Tunnel check box is selected.

N/A_keyalias
Private Key PassphraseString

The password associated with the private key. If no value is provided, the keystore password is used. 

This value is considered only if the Configure SSH Tunnel check box is selected.

N/AN/A
Advanced propertiesFieldsetAdvanced input required for connecting to the database.

Auto commitN/AAuto-commit property for the database. 

When selected, each of the batches is committed immediately after it is executed. If the Snap fails, only the batch being executed at that moment is rolled back.

When deselected, the Snap execution output is committed only after all the batches are executed. If the Snap fails, the entire transaction is rolled back, unless the Snap finds invalid input data before it sends the insert request to the server, and routes the error documents to the Error view.

SelectedSelected
Batch sizeInteger
RequiredBatch size defines how many SQL statements can be executed in a single batch. For example, when inserting 100 records with batch size as 40, there will be 100 insert statements, and they are executed in 3 batches, the first and second batches contain 40 insert statements each and the third batch contains 20.

It is part of the JDBC standard, there is no maximum limit on the batch size. However, the JDBC drivers do not necessarily follow the standard and could throw exceptions if the batch size is too large for a specific driver. Reduce the batch size if you see an exception saying that the batch size is too large.

Note

Select queries are not batched.


Warning

Using a large batch size could use up the JDBC placeholder limit of 2100. If the batch size is too large, sending a single batch request to the database server can take too long and it would time out. You should test and monitor the performance with different batch sizes and decide the best batch size.


5050
Fetch sizeInteger

RequiredNumber of rows to fetch at a time when executing a query.

Warning

Large values could cause the server to run out of memory.


100100
Max pool sizeIntegerRequiredMaximum number of concurrent connections a pool will maintain at a time. The number of max pool size depends on how many concurrent connections you need. Each MySQL Snap holds a separate connection when running. For a pipeline that has 4 MySQL Insert, 2 MySQL Execute, and 1 MySQL Update Snaps, the max pool size should be no less than 7 to make sure that the pipeline is executed successfully.5050
Max life timeIntegerRequired. The maximum time (in minutes) of a connection in the pool. Ensure that the value you enter is a few seconds shorter than any database or infrastructure-imposed connection time limit. A value of 0 indicates an infinite lifetime, subject to the Idle Timeout value. An in-use connection is never retired. Connections are removed only after they are closed.3030
Idle TimeoutIntegerRequiredThe maximum time (in seconds) a connection is allowed to sit idle in the pool. A value of 0 indicates that idle connections are never removed from the pool.55
Checkout timeoutInteger

Required. The number of milliseconds to wait for a connection to be available when the pool is exhausted. A value of 0 waits forever. An exception will be thrown after the wait time has expired.

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1000010000
URL propertiesN/AInput regarding URL properties.N/AN/A

URL property name


String

URL property nameN/AzeroDateTimeBehavior

URL property value


String

URL property valueN/AconvertToNull

Limitations

  • None.

Troubleshooting

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