The following are the highlights in this release:
A new algorithm of hotspot detection is supported here, which makes the following improvements:
Thanks to @Smityz .
Related PR:
There are some updates used to optimize memory usage and reduce performance cost.
Related PR:
[replication] - allow_non_idempotent_write = false + max_allowed_write_size = 1048576 # default = 1MB + cold_backup_checkpoint_reserve_minutes = 10 [pegasus.server] # cluster level restriction {3000, 30MB, 1000, 30s} + rocksdb_multi_get_max_iteration_count = 3000 + rocksdb_multi_get_max_iteration_size = 31457280 + rocksdb_max_iteration_count = 1000 + rocksdb_iteration_threshold_time_ms = 30000 + rocksdb_use_direct_reads = true + rocksdb_use_direct_io_for_flush_and_compaction = true + rocksdb_compaction_readahead_size = 2097152 + rocksdb_writable_file_max_buffer_size = 1048576 - perf_counter_cluster_name = %{cluster.name} - perf_counter_enable_falcon = false - perf_counter_enable_prometheus = false + perf_counter_sink = <falcon | prometheus> [pegasus.collector] - cluster = %{cluster.name} + hotspot_detect_algorithm = <hotspot_algo_qps_variance | hotspot_algo_qps_skew> [replication] + cluster_name = %{cluster.name}