search for: tcp_user_timeout

...going down. Note that some of the scenarios of ungraceful network shutdown can be identified using TCP_KEEPALIVE and TCP_USERTIMEOUT [1]. However, at the time when heartbeat mechanism was introduced in Glusterfs, TCP_KEEPALIVE couldn't identify all the ungraceful network shutdown scenarios and TCP_USER_TIMEOUT was yet to be implemented in Linux kernel. One scenario which TCP_KEEPALIVE could identify was the exact scenario TCP_USER_TIMEOUT aims to solve - identifying an hard network shutdown when data is in transit. However there might be other limitations in TCP_KEEPALIVE which we need to test out before...

...of the > scenarios of ungraceful network shutdown can be identified using > TCP_KEEPALIVE and TCP_USERTIMEOUT [1]. However, at the time when heartbeat > mechanism was introduced in Glusterfs, TCP_KEEPALIVE couldn't identify all > the ungraceful network shutdown scenarios and TCP_USER_TIMEOUT was yet to > be implemented in Linux kernel. One scenario which TCP_KEEPALIVE could s/could/couldn't/ > identify was the exact scenario TCP_USER_TIMEOUT aims to solve - > identifying an hard network shutdown when data is in transit. However > there might be other limitatio...

Hi, I have a question regarding the "ping-timeout" option. I have been researching its purpose for a few days and it is not completely clear to me. Especially that it is apparently strongly encouraged by the Gluster community not to change or at least decrease this value! Assuming that I set ping-timeout to 10 seconds (instead of the default 42) this would mean that if I have a network

...SO_KEEPALIVE=0, SO_REUSEADDR=0, SO_BROADCAST=0, TCP_NODELAY=1, TCP_KEEPCNT=9, TCP_KEEPIDLE=7200, TCP_KEEPINTVL=75, IPTOS_LOWDELAY=0, IPTOS_THROUGHPUT=0, SO_REUSEPORT=0, SO_SNDBUF=46080, SO_RCVBUF=87380, SO_SNDLOWAT=1, SO_RCVLOWAT=1, SO_SNDTIMEO=0, SO_RCVTIMEO=0, TCP_QUICKACK=1, TCP_DEFER_ACCEPT=0, TCP_USER_TIMEOUT=0 cli_set_timeout: Changing connection timeout for server '10.213.83.50' from 20000 (ms) to 20000 (ms). cli_session_setup_spnego_send: Connect to 10.213.83.50 as Administrator at EPO using SPNEGO GENSEC backend 'gssapi_spnego' registered GENSEC backend 'gssapi_krb5' register...

...= 75 ???????IPTOS_LOWDELAY = 0 ???????IPTOS_THROUGHPUT = 0 ???????SO_REUSEPORT = 0 ???????SO_SNDBUF = 2626560 ???????SO_RCVBUF = 131072 ???????SO_SNDLOWAT = 1 ???????SO_RCVLOWAT = 1 ???????SO_SNDTIMEO = 0 ???????SO_RCVTIMEO = 0 ???????TCP_QUICKACK = 1 ???????TCP_DEFER_ACCEPT = 0 ???????TCP_USER_TIMEOUT = 0 session request ok negotiated dialect[SMB3_11] against server[localhost] Enter RAHIM-DALE\Administrator's password: cli_session_setup_spnego_send: Connect to localhost as Administrator at RAHIM-DALE.ORG using SPNEGO GENSEC backend 'gssapi_spnego' registered GENSEC backend 'gssa...

...socket(PF_INET, SOCK_STREAM, IPPROTO_IP) = 5 4543 setsockopt(5, SOL_TCP, TCP_NODELAY, [1], 4) = 0 4543 setsockopt(5, SOL_SOCKET, SO_KEEPALIVE, [1], 4) = 0 4543 setsockopt(5, SOL_TCP, TCP_KEEPIDLE, [20], 4) = 0 4543 setsockopt(5, SOL_TCP, TCP_KEEPINTVL, [2], 4) = 0 4543 setsockopt(5, SOL_TCP, TCP_USER_TIMEOUT, [0], 4) = 0 4543 open("/proc/sys/net/ipv4/ip_local_reserved_ports", O_RDONLY) = 7 4543 read(7, "\n", 4096) = 1 4543 close(7) = 0 4543 bind(5, {sa_family=AF_INET, sin_port=htons(49151), sin_addr=inet_addr("100.64.251.6")}, 16)...

...0:24.787863] D [socket.c:2833:socket_fix_ssl_opts] 0-management: disabling SSL for portmapper connection [2017-04-03 22:20:24.787883] T [socket.c:805:__socket_nodelay] 0-management: NODELAY enabled for socket 8 [2017-04-03 22:20:24.787899] W [socket.c:869:__socket_keepalive] 0-socket: failed to set TCP_USER_TIMEOUT -1000 on socket 8, Invalid argument [2017-04-03 22:20:24.787910] E [socket.c:2965:socket_connect] 0-management: Failed to set keep-alive: Invalid argument [2017-04-03 22:20:24.788092] D [MSGID: 0] [common-utils.c:2887:gf_ports_reserved] 0-glusterfs: lower: 30000, higher: 32767 [2017-04-03 22:21:52....

...= 2626560 >>> ????????SO_RCVBUF = 131072 >>> ????????SO_SNDLOWAT = 1 >>> ????????SO_RCVLOWAT = 1 >>> ????????SO_SNDTIMEO = 0 >>> ????????SO_RCVTIMEO = 0 >>> ????????TCP_QUICKACK = 1 >>> ????????TCP_DEFER_ACCEPT = 0 >>> ????????TCP_USER_TIMEOUT = 0 >>> session request ok >>> negotiated dialect[SMB3_11] against server[localhost] >>> Enter RAHIM-DALE\Administrator's password: >>> cli_session_setup_spnego_send: Connect to localhost as >>> Administrator at RAHIM-DALE.ORG using SPNEGO >>&...