How many records can Cassandra Table can store?
we are planning to design multiple (csv) file ingestion. As part of that we wanted to know how many records can a cassandra (staging) store.
Any suggestion can be helpful.
Thanks!
@Priyesh The number of records a Cassandra table can store depends on several factors, including the size of each record and the configuration of your Cassandra cluster. It is recommended to avoid writing large records to Cassandra, with the default maximum record size being 16MB. For DDS Data Sets, when the size of the data record exceeds 1MB, it triggers the PEGA0079 alert. Additionally, it is important to monitor the available disk space regularly and avoid distributing data unequally across nodes by limiting the size of data under a single partition key to 100MB. (SC)
Cassandra can store billions of records, but the actual capacity depends on your cluster’s hardware and configuration. Each node can handle up to 1 TB of data, and you should allocate at least double the disk space of your data size. For efficient CSV file ingestion, use partitions for parallel processing and consider incremental updates.(sB)
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Best practices for Cassandra disk space management