TCP KeepAlive パラメータを個別指定する

• 回報者: mizar
• 負責人: (無)
• 類型: 特色請求
• 狀態: 開啟
• 元件: (無)
• 里程碑: (無)
• 優先權: 5 - 中
• 嚴重程度: 5 - 中
• 處理結果: 無
• 檔案: 無

細節 回覆

/proc/sys/net/ipv4/tcp_keepalive_time 等の変更を行わずとも、shogi-serverでのTCP Keepalive間隔を独自に指定できるように。

https://osdn.net/users/mizar/pf/shogi-server/scm/commits/e37932a0d2387227928808ec86f49362ae29f9ea

 --------------------------------- shogi-server ---------------------------------
 @@ -208,7 +208,10 @@ def parse_command_line
      ["--least-time-per-move", GetoptLong::REQUIRED_ARGUMENT],
      ["--max-moves",           GetoptLong::REQUIRED_ARGUMENT],
      ["--pid-file",            GetoptLong::REQUIRED_ARGUMENT],
 -    ["--player-log-dir",      GetoptLong::REQUIRED_ARGUMENT])
 +    ["--player-log-dir",      GetoptLong::REQUIRED_ARGUMENT],
 +    ["--tcpkeepalive-idle",   GetoptLong::REQUIRED_ARGUMENT],
 +    ["--tcpkeepalive-intvl",  GetoptLong::REQUIRED_ARGUMENT],
 +    ["--tcpkeepalive-cnt",    GetoptLong::REQUIRED_ARGUMENT])
    parser.quiet = true
    begin
      parser.each_option do |name, arg|
 @@ -283,6 +286,15 @@ def check_command_line
  
    $options["least-time-per-move"] ||= ShogiServer::Default_Least_Time_Per_Move
    $options["least-time-per-move"] = $options["least-time-per-move"].to_i
 +
 +  $options["tcpkeepalive-idle"] ||= ShogiServer::Default_TcpKeepAlive_Idle
 +  $options["tcpkeepalive-idle"] = $options["tcpkeepalive-idle"].to_i
 +
 +  $options["tcpkeepalive-intvl"] ||= ShogiServer::Default_TcpKeepAlive_Intvl
 +  $options["tcpkeepalive-intvl"] = $options["tcpkeepalive-intvl"].to_i
 +
 +  $options["tcpkeepalive-cnt"] ||= ShogiServer::Default_TcpKeepAlive_Cnt
 +  $options["tcpkeepalive-cnt"] = $options["tcpkeepalive-cnt"].to_i
  end
  
  # See if a file can be created in the directory.
 @@ -455,8 +467,30 @@ def main
    server.start do |client|
      begin
        # client.sync = true # this is already set in WEBrick 
 -      client.setsockopt(Socket::SOL_SOCKET, Socket::SO_KEEPALIVE, true)
 -        # Keepalive time can be set by /proc/sys/net/ipv4/tcp_keepalive_time
 +      if Socket.const_defined?(:SOL_SOCKET) &&
 +        Socket.const_defined?(:SO_KEEPALIVE) &&
 +        Socket.const_defined?(:IPPROTO_TCP)
 +        client.setsockopt(Socket::SOL_SOCKET, Socket::SO_KEEPALIVE, true)
 +          # Keepalive time can be set by /proc/sys/net/ipv4/tcp_keepalive_time
 +        if Socket.const_defined?(:TCP_KEEPIDLE) &&
 +          Socket.const_defined?(:TCP_KEEPINTVL) &&
 +          Socket.const_defined?(:TCP_KEEPCNT)
 +          client.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_KEEPIDLE, $options["tcpkeepalive-idle"])
 +          client.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_KEEPINTVL, $options["tcpkeepalive-intvl"])
 +          client.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_KEEPCNT, $options["tcpkeepalive-cnt"])
 +        elsif RUBY_PLATFORM.downcase =~ /mswin|mingw|cygwin|bccwin/
 +          # Windows 10 (1709 or later) ws2ipdef.h
 +          # https://docs.microsoft.com/en-us/windows/win32/winsock/ipproto-tcp-socket-options
 +          client.setsockopt(Socket::IPPROTO_TCP, 3, $options["tcpkeepalive-idle"])
 +          client.setsockopt(Socket::IPPROTO_TCP, 17, $options["tcpkeepalive-intvl"])
 +          client.setsockopt(Socket::IPPROTO_TCP, 16, $options["tcpkeepalive-cnt"])
 +        elsif RUBY_PLATFORM.downcase =~ /darwin/
 +          # macOS 10.12.6 (Sierra) /usr/include/netinet/tcp.h
 +          client.setsockopt(Socket::IPPROTO_TCP, 0x10, $options["tcpkeepalive-idle"])
 +          client.setsockopt(Socket::IPPROTO_TCP, 0x101, $options["tcpkeepalive-intvl"])
 +          client.setsockopt(Socket::IPPROTO_TCP, 0x102, $options["tcpkeepalive-cnt"])
 +        end
 +      end
        player, login = login_loop(client) # loop
        unless player
          log_error("Detected a timed out login attempt")
 
 ------------------------------- shogi_server.rb -------------------------------
 @@ -50,6 +50,9 @@ Default_Timeout = 60            # for single socket operation
  Default_Game_Name = "default-1500-0"
  Default_Max_Moves = 256
  Default_Least_Time_Per_Move = 0
 +Default_TcpKeepAlive_Idle = 50
 +Default_TcpKeepAlive_Intvl = 5
 +Default_TcpKeepAlive_Cnt = 9
  One_Time = 10
  Login_Time = 300                # time for LOGIN
  Revision = "20160409"

Ticket History (2/2 Histories)

2020-10-01 22:08 Updated by: mizar

• New Ticket "TCP KeepAlive パラメータを個別指定する" created

2020-10-02 01:42 Updated by: mizar

• Details Updated