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  1. Cassandra
  2. CASSANDRA-14573

Expose settings in virtual table

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      Description

      Allow both viewing what the settings are (currently impossible for some) and allow changing some settings.

      Example:

      UPDATE system_info.settings SET value = 'false' WHERE setting = 'hinted_handoff_enabled';
      
      SELECT * FROM system_info.settings WHERE writable = True;
      
       setting                                              | value      | writable
      ------------------------------------------------------+------------+----------
                            batch_size_fail_threshold_in_kb |         50 |     True
                            batch_size_warn_threshold_in_kb |          5 |     True
                               cas_contention_timeout_in_ms |       1000 |     True
                           compaction_throughput_mb_per_sec |         16 |     True
                                      concurrent_compactors |          2 |     True
                                     concurrent_validations | 2147483647 |     True
                        counter_write_request_timeout_in_ms |       5000 |     True
                                     hinted_handoff_enabled |      false |     True
                              hinted_handoff_throttle_in_kb |       1024 |     True
                                        incremental_backups |      false |     True
       inter_dc_stream_throughput_outbound_megabits_per_sec |        200 |     True
                                      phi_convict_threshold |        8.0 |     True
                                range_request_timeout_in_ms |      10000 |     True
                                 read_request_timeout_in_ms |       5000 |     True
                                      request_timeout_in_ms |      10000 |     True
                stream_throughput_outbound_megabits_per_sec |        200 |     True
                                tombstone_failure_threshold |     100000 |     True
                                   tombstone_warn_threshold |       1000 |     True
                             truncate_request_timeout_in_ms |      60000 |     True
                                write_request_timeout_in_ms |       2000 |     True

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              • Assignee:
                cnlwsu Chris Lohfink
                Reporter:
                cnlwsu Chris Lohfink
                Authors:
                Chris Lohfink
                Reviewers:
                Aleksey Yeschenko
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                  Updated:
                  Resolved:

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