Reference: magma (GUC) ====================== The magma special configuration item is saved in the magma-site.xml file, which is located in the directory /usr/local/oushu/conf/. The configuration takes effect in the following two ways: * initdb: It takes effect on initdb, and cannot be changed later. * restart: It takes effect on restart, and the changes will not be detected after start. nbuffers --------------------------- The buffer number of buffer manager. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 10240 initdb ============ ======================== ======================= follower_nbuffers --------------------------- The buffer number of the follower's buffer manager. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 10240 initdb ============ ======================== ======================= shared_buffer_size_per_table_per_range --------------------------- Ap L0 buffer size of per range per table. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 8388608 initdb ============ ======================== ======================= compact_trigger_ap_ratio_limit --------------------------- The threshold of triggering compact in MAGMAAP format. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= float 0.2 initdb,restart ============ ======================== ======================= compact_trigger_tp_ratio_limit --------------------------- The threshold of triggering compact in MAGMAAP catalog ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= float 0.5 initdb,restart ============ ======================== ======================= compact_data_worker_limit_pernode --------------------------- The limit of running concurrent compact workers in one node. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 4 initdb, restart ============ ======================== ======================= compact_data_worker_limit_perrg --------------------------- The limit of running concurrent compact workers in one range group. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 1 initdb,restart ============ ======================== ======================= compact_cleanup_worker_limit_perrg --------------------------- The limit of runnings concurrent compact workers for cleaning up jobs in one range group. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 16 initdb,restart ============ ======================== ======================= compact_tablestats_queue_limit --------------------------- The limit of table-stats queue in compact. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 4096 initdb,restart ============ ======================== ======================= compact_tablestats_queue_timeout --------------------------- The timeout in milliseconds of push or pop operation of table-stats queue in compact. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 250 initdb ============ ======================== ======================= compact_collect_interval --------------------------- The interval in milliseconds of collecting dropped-tables in compact. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 10000 initdb,restart ============ ======================== ======================= compact_clear_interval --------------------------- The interval in milliseconds of clearing dropped-tables in compact. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 600000 initdb,restart ============ ======================== ======================= compact_sleep_interval_idle --------------------------- The sleep interval in milliseconds in compact when idle. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 500 initdb,restart ============ ======================== ======================= raft_election_timeout --------------------------- The timeout of raft election in second. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 120 initdb,restart ============ ======================== ======================= blacklist_log_threshold --------------------------- The maximum gap of an offline node measured by log size in MB behind its corresponding leaders before moving it into blacklist. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 81920 initdb,restart ============ ======================== ======================= rg_checkpoint_threshold --------------------------- The minimum size in KB of accumulated Raft log items should trigger checkpoint in one range group. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 262144 initdb,restart ============ ======================== ======================= raftlog_checkflush_num --------------------------- The minimum log numbber of accumulated Raft log items should trigger checkpoint in one range group. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 100000 initdb,restart ============ ======================== ======================= rpc_server_work_thread_num --------------------------- rpc server's work thread nums. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 8 initdb,restart ============ ======================== ======================= metadata_cache_capacity --------------------------- the capacity of magma catalog's cache ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= int 4096 initdb ============ ======================== ======================= log_min_messages --------------------------- The message levels that are logged. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= string warning initdb,restart ============ ======================== ======================= create_index_sort_work_dir --------------------------- The directory used for magma create index external sort. ============ ======================== ======================= Value Range Default Set Classifications ============ ======================== ======================= string /tmp initdb,restart ============ ======================== =======================