Advanced configuration

The following is currently configurable by adding a [repair_service] section to the opscenterd.conf file to apply to all clusters, or per-cluster by adding the section to the cluster_name.conf file. Settings in cluster_name.conf override any settings in opscenterd.conf.

log_directory = /var/log/opscenter/repair_service/

The directory to log the repair service log to.

log_length = 10485760

The maximum size (in bytes) the repair service logs can grow before rotation (default 10485760 bytes)

max_rotate = 10

The maximum number of rotated repair service logs to keep (default 10)

persist_directory = /var/lib/opscenter/repair_service/

The directory to persist the repair service status to.

persist_period = 300

How often to persist the repair service status (in seconds).

restart_period = 300

How often to check for a stable ring during topology changes (in seconds).

single_task_err_threshold = 10

How many times a single repair command must fail before the service shuts down.

max_err_threshold = 100

The maximum number of errors we can see during a single cycle of the repair service before shutting down.

max_parallel_repairs = 0

A cap on the maximum number of parallel repairs we will perform, taking precedence over our calculation based on number of nodes/RF.

min_throughput = 512

The minimum number of bytes a single range repair must contain in order to be included in calculations to determine how many parallel repairs to run (default: 512).

single_repair_timeout = 3600

The timeout placed on each repair command (in seconds).

min_repair_time = 5

The minimum amount of time we expect each repair command to take. If commands run faster, we will sleep the difference. (in seconds).

snapshot_override

Enable or disable snapshot repairs by setting to true or false, respectively. This option is left unset by default. If snapshot_override is unset, snapshot repairs will be enabled automatically if the version of DataStax Enterprise or Cassandra supports them.

num_recent_throughputs

The number of recent throughputs used to calculate the average throughput, which is then used to determine how many parallel repairs are needed. The default value is 20.

ks_update_period

The interval in seconds during which the repair service will update the list of keyspaces to repair.