https://github.com/riptl/cqlcopy

Efficient replacement for Cassandra's cqlsh COPY
https://github.com/riptl/cqlcopy

apache-cassandra big-data cassandra cassandra-cql pipeline

Last synced: 12 days ago
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Efficient replacement for Cassandra's cqlsh COPY

• Host: GitHub
• URL: https://github.com/riptl/cqlcopy
• Owner: riptl
• Archived: true
• Created: 2019-10-08T02:58:36.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2021-12-15T04:26:12.000Z (about 3 years ago)
• Last Synced: 2025-01-21T01:15:25.608Z (15 days ago)
• Topics: apache-cassandra, big-data, cassandra, cassandra-cql, pipeline
• Language: Go
• Homepage:
• Size: 83 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 2
• Metadata Files:
  • Readme: README.md

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README

        
# CQLCopy

cqlcopy is a performant replacement for cqlsh's `COPY FROM` functionality,

used to stream data to Apache Cassandra.

 * Compatible with RFC 4180 CSV files. (based on Go's `encoding/csv`)

 * Lightweight, easily does 50k inserts per second.

Known caveats:

 * Floating-point numbers not supported yet.

```

Usage:

  cqlcopy write   [flags]

Flags:

      --bool-style string           Boolean indicators for true and false (case-insensitive) (default "true,false")

      --chunk-size uint             Number of items in an import batch (default 1000)

      --header                      First row contains column names

  -h, --help                        help for write

      --max-attempts uint           Max attempts (Zero means infinite) (default 5)

      --max-batch-size uint         Maximum size of an import batch in kB (default 20)

      --max-insert-errors int32     Maximum number of batch insert errors (Negative value: no maximum) (default -1)

      --max-parse-errors int        Maximum number of parsing errors (Negative value: no maximum) (default -1)

      --null string                 Special unquoted literal marking a null value (default "NULL")

      --num-processes uint          Number of worker processes (goroutines) (default 8)

      --report-frequency duration   Frequency with which status is displayed (default 250ms)

      --time-format string          Timestamp format (default "2006-01-02 15:04:05-0700")

Global Flags:

  -c, --connect strings   Node CQL addresses (default [localhost:9042])

  -k, --keyspace string   Default keyspace

```