Vadim created NIFI-5788:
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Summary: Introduce batch size limit in PutDatabaseRecord processor
Key: NIFI-5788
URL: https://issues.apache.org/jira/browse/NIFI-5788
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Affects Versions: 1.8.0
Environment: Teradata DB
Reporter: Vadim
Fix For: 1.8.0
Certain JDBC drivers do not support unlimited batch size in INSERT/UPDATE
prepared SQL statements. Specifically, Teradata JDBC driver
([https://downloads.teradata.com/download/connectivity/jdbc-driver)] would fail
SQL statement when the batch overflows the internal limits.
Dividing data into smaller chunks before the PutDatabaseRecord is applied can
work around the issue in certain scenarios, but generally, this solution is not
perfect because the SQL statements would be executed in different transaction
contexts and data integrity would not be preserved.
The solution suggests the following:
* introduce a new optional parameter in *PutDatabaseRecord* processor,
*batch_size* which defines the maximum size of the bulk in INSERT/UPDATE
statement; its default value is -1 (INFINITY) preserves the old behavior
* divide the input into batches of the specified size and invoke
PreparedStatement.executeBatch() for each batch
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