Added TRANSACTION_ISOLATION_LEVEL in AbstractDBSpecificConnectorConfig#1
Added TRANSACTION_ISOLATION_LEVEL in AbstractDBSpecificConnectorConfig#1Krish-cloudsufi wants to merge 16 commits intodevelopfrom
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| if (transactionIsolationLevel == null) { | ||
| transactionIsolationLevel = TransactionIsolationLevel.Level.TRANSACTION_SERIALIZABLE.name(); | ||
| } | ||
| return TransactionIsolationLevel.Level.valueOf(transactionIsolationLevel).name(); | ||
| } |
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Can we set the transactionIsolationLevel to TRANSACTION_READ_COMMITTED for normal roles just to ensure that the role is mapped to the right serialization level, even with incorrect user input?
//if role is SYSDBA or SYSOP it will map to read_committed. else serialized
return (!getRole().equals(ROLE_NORMAL)) ? TransactionIsolationLevel.Level.TRANSACTION_READ_COMMITTED.name() :
TransactionIsolationLevel.Level.valueOf(transactionIsolationLevel).name();
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@Krish-cloudsufi You'd also need to put the Transaction Isolation Level in the additional arguments for all affected DB plugins. See how it's done in Oracle Connector Configuration for reference. |
| @Nullable | ||
| protected Integer port; | ||
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| public String getTransactionIsolationLevel() { | ||
| if (transactionIsolationLevel == null) { | ||
| transactionIsolationLevel = TransactionIsolationLevel.Level.TRANSACTION_READ_COMMITTED.name(); |
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in other plugins we dont have a default isolation level set by us as it can differ db wise, return null if it is null
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| **Transaction Isolation Level** The transaction isolation level of the databse connection | ||
| - TRANSACTION_READ_COMMITTED: No dirty reads. Non-repeatable reads and phantom reads are possible. | ||
| - TRANSACTION_SERIALIZABLE (default): No dirty reads. Non-repeatable and phantom reads are prevented. |
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mysql-plugin/docs/MySQL-connector.md
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| **Transaction Isolation Level** The transaction isolation level of the databse connection | ||
| - TRANSACTION_READ_COMMITTED: No dirty reads. Non-repeatable reads and phantom reads are possible. | ||
| - TRANSACTION_SERIALIZABLE (default): No dirty reads. Non-repeatable and phantom reads are prevented. |
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https://dev.mysql.com/doc/refman/8.4/en/innodb-transaction-isolation-levels.html#isolevel_repeatable-read this is also not default for mysql
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is this we are making default on UI then its fine
| public static final String JDBC_PLUGIN_NAME = "jdbcPluginName"; | ||
| public static final String JDBC_PLUGIN_TYPE = "jdbc"; | ||
| public static final String TRANSACTION_ISOLATION_LEVEL = "transactionIsolationLevel"; | ||
| public static final String ROLE = "role"; |
| } | ||
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| public String getTransactionIsolationLevel() { | ||
| LOG.debug("Hi Krish Inside AbstractDBSpecificSourceConfig getTransactionIsolationLevel "); |
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Remove this logger one testing is complete.
| } | ||
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| public Map<String, String> getAdditionalArguments() { | ||
| LOG.debug("inside get Additional argument of AbstractDBConnectorConfig"); |
3 participants
Added support for specifying the transaction isolation level in database plugins by introducing a new optional property "transactionIsolationLevel" in the AbstractDBSpecificConnectorConfig class — the parent class for MySQL, PostgreSQL, and Oracle connector configurations.