Wouter de Vries created NIFI-8383:
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Summary: PutCassandraRecord always uses batch statements
Key: NIFI-8383
URL: https://issues.apache.org/jira/browse/NIFI-8383
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Affects Versions: 1.13.2
Reporter: Wouter de Vries
The PutCassandraRecord processor uses a BatchStatement for all inserts. This is
not recommended for most situations, particularly when the records that are
inserted belong to different partitions.
Instead, we should use parallel/asynchronous insertions to optimize for write
speed, and still allow batch statements when some form of atomicity is required.
([https://docs.datastax.com/en/dse/6.0/cql/cql/cql_reference/cql_commands/cqlBatch.html)]
This setup leads to log warnings of the following form:
{noformat}
stdout F WARN [Native-Transport-Requests-3] 2021-03-30 08:33:01,760
NoSpamLogger.java:94 - Unlogged batch covering 100 partitions detected against
table [KEYSPACE.TABLE]. You should use a logged batch for atomicity, or
asynchronous writes for performance.{noformat}
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