Re: [MooseFS-Users] why master can't server any request at every o'clock?

[彭智希 <pen...@16...>]

Hi 


[root@mfs-CNC-GZSX-231 ~]# cat /proc/sys/vm/overcommit_memory
1


[root@mfs-CNC-GZSX-231 ~]# cat /etc/sysctl.conf
net.ipv4.ip_forward = 0
net.ipv4.conf.all.rp_filter = 1
net.ipv4.conf.default.rp_filter = 1
net.ipv4.conf.all.accept_redirects = 0
net.ipv4.conf.default.accept_redirects = 0
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.conf.all.log_martians = 1
kernel.sysrq = 0
net.ipv4.neigh.default.gc_thresh1 = 8192
net.ipv4.neigh.default.gc_thresh2 = 4092
net.ipv4.neigh.default.gc_thresh3 = 8192
net.ipv4.conf.all.accept_source_route = 0
net.ipv4.conf.default.accept_source_route = 0
net.ipv4.icmp_echo_ignore_broadcasts = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
#####vm.max_map_count = 6553000
fs.file-max = 819200
##########
#####TCP sockets
 net.ipv4.tcp_max_orphans = 400000
#######syn cookies
net.ipv4.tcp_max_syn_backlog = 400000
net.ipv4.tcp_syn_retries = 3
net.ipv4.tcp_synack_retries = 5
net.ipv4.tcp_syncookies = 1
########
########TIME_WAIT net.ipv4.tcp_max_tw_buckets = 1440000
net.ipv4.tcp_tw_recycle=0
net.ipv4.tcp_tw_reuse=1
net.ipv4.tcp_timestamps = 1
########
net.ipv4.tcp_fin_timeout = 15
net.ipv4.tcp_keepalive_time = 300
net.core.netdev_max_backlog = 400000
net.ipv4.ip_local_port_range = 1024 65535
########
net.core.rmem_max = 9174960
net.core.rmem_default = 9174960
net.core.wmem_max = 9174960
net.core.wmem_default = 9174960
net.core.optmem_max = 921600
net.ipv4.tcp_rmem = 28192 565248 819200
net.ipv4.tcp_wmem = 14096  141312   409600
###########
net.ipv4.ipfrag_high_thresh = 5242880
net.ipv4.tcp_slow_start_after_idle = 0
#net.ipv4.tcp_westwood = 1
#net.ipv4.tcp_bic = 1
net.ipv4.ipfrag_low_thresh = 2932160
#################
net.core.somaxconn = 400000
#########################
vm.swappiness = 0
###Version 2014.05.26
######
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_low_latency = 0
net.ipv4.tcp_slow_start_after_idle = 0


######core
kernel.core_pattern = /var/core/core.%e-%p-%t









At 2016-03-01 19:07:11, "Aleksander Wieliczko" <ale...@mo...> wrote:
>Hi,
>Thank you for this information.
>
>Would you be so kind end check if you have enabled overcommit_memory in
>your system?
>This command should return 1:
>cat /proc/sys/vm/overcommit_memory
>
>Also can you send us results from command:
>cat /etc/sysctl.conf
>
>Best regards
>Aleksander Wieliczko
>Technical Support Engineer
>MooseFS.com <moosefs.com>