#The file(check_list.conf) is the gs_check and gs_checkos configuration file.
#The file is placed in $GPHOME/script/util

# the system control parameter
[/etc/sysctl.conf]
net.ipv4.tcp_max_tw_buckets = 10000
net.ipv4.tcp_tw_reuse = 1
net.ipv4.tcp_tw_recycle = 1
net.ipv4.tcp_keepalive_time = 30
net.ipv4.tcp_keepalive_intvl = 30
net.ipv4.tcp_keepalive_probes = 9
net.ipv4.tcp_retries2 = 80
net.core.wmem_max = 21299200
net.core.rmem_max = 21299200
net.core.wmem_default = 21299200
net.core.rmem_default = 21299200
kernel.sem = 250 6400000 1000 25600
net.ipv4.tcp_rmem = 8192 250000 16777216
net.ipv4.tcp_wmem = 8192 250000 16777216
# vm.min_free_kbytes would set to 5% of total system memory real time, total system memory get with cmd: free -k|grep Mem|awk '{print $2}'.
vm.min_free_kbytes  = total_system_memory*5%
net.core.netdev_max_backlog = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.core.somaxconn = 65535
net.ipv4.tcp_syncookies = 1
vm.overcommit_memory = 0
vm.panic_on_oom = 0
vm.oom_kill_allocating_task = 0
kernel.shmall = 1152921504606846720
kernel.shmmax = 18446744073709551615

# if parameter value is not equal to ths OS's value, print the waring, and not error
[SUGGEST:/etc/sysctl.conf]
net.ipv4.tcp_fin_timeout = 60
net.ipv4.tcp_sack = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_retries1 = 5
net.ipv4.tcp_syn_retries = 5
net.ipv4.tcp_synack_retries = 5
vm.extfrag_threshold = 500
vm.overcommit_ratio = 90

# open file number, please set it to set '1000000'
[/etc/security/limits.conf]
open files = 1000000
stack size = 3072

# network parameter
# if the level of network is greater or equal to 10000Mb/s,  please set RX/TX to 4096;
# we will check if the MTU is greater or equal to 1500, but gs_checkos dose not set it.
# else, skip it. 
[/sbin/ifconfig]
MTU = 8192
RX = 4096
TX = 4096

#gs_check CheckGucConsistent guc parameter ignore list
[guc_ignore]
listen_addresses = 0
local_bind_address = 0
port = 0
cstore_buffers = 0
max_connections = 0
shared_buffers = 0
work_mem = 0
maintenance_work_mem = 0
data_replicate_buffer_size = 0
pooler_port = 0
log_directory = 0
audit_directory = 0
pgxc_node_name = 0
ssd_cache_dir = 0
enable_adio_function = 0
enable_cstore_ssd_cache = 0
unix_socket_directory = 0
unix_socket_permissions = 0
log_file_mode = 0
max_coordinators = 0
max_datanodes = 0
enable_nestloop = 0
enable_mergejoin = 0
comm_tcp_mode = 0
explain_perf_mode = 0
log_line_prefix = 0
max_active_statements = 0
# Ip and port related
comm_control_port = 0
comm_sctp_port = 0
replconninfo2 = 0
replconninfo1 = 0
# Instance directory related
ident_file = 0
config_file = 0
hba_file = 0
data_directory = 0
archive_command = 0
xc_maintenance_mode = 0

[guc_logic]
allow_concurrent_tuple_update = 0
prefetch_quantity = 0
backwrite_quantity = 0
cstore_prefetch_quantity = 0
cstore_backwrite_max_threshold = 0
cstore_backwrite_quantity = 0
fast_extend_file_size = 0
bgwriter_delay = 0
bgwriter_lru_maxpages = 0
bgwriter_flush_after = 0
autovacuum_naptime = 0
autovacuum_vacuum_threshold = 0
autovacuum_analyze_threshold = 0
autovacuum_vacuum_scale_factor = 0
autovacuum_analyze_scale_factor = 0
enable_stream_operator = 0
enable_data_replicate = 0
wal_keep_segments = 0
wal_sender_timeout = 0
wal_writer_delay = 0
checkpoint_segments = 0
checkpoint_timeout = 0
checkpoint_warning = 0
checkpoint_flush_after = 0
checkpoint_wait_timeout = 0
vacuum_cost_page_hit = 0
vacuum_cost_page_miss = 0
vacuum_cost_page_dirty = 0
vacuum_cost_limit = 0
vacuum_cost_delay = 0
autovacuum_vacuum_cost_delay = 0
autovacuum_vacuum_cost_limit = 0
full_page_writes = 0
fsync = 0
io_limits = 0
io_priority = 0
bulk_write_ring_size = 0
bulk_read_ring_size = 0
partition_mem_batch = 0
partition_max_cache_size = 0
temp_file_limit = 0
query_mem = 0
maintenance_work_mem = 0
synchronous_commit = 0
work_mem = 0
dynamic_memory_quota = 0
temp_buffers = 0
max_loaded_cudesc = 0
wal_receiver_status_interval = 0
wal_receiver_timeout = 0
wal_receiver_connect_timeout = 0
wal_receiver_connect_retries = 0
wal_receiver_buffer_size = 0
data_replicate_buffer_size = 0
max_connections = 0
max_files_per_process = 0
shared_buffers = 0
memorypool_size = 0
cstore_buffers = 0
UDFWorkerMemHardLimit = 0
walsender_max_send_size = 0
wal_buffers = 0
max_wal_senders = 0
autovacuum_freeze_max_age = 0
autovacuum_max_workers = 0
track_activity_query_size = 0
event_source = 0
zhparser_dict_in_memory = 0
memorypool_enable = 0
enable_memory_limit = 0