/// <exception cref="Com.Jcraft.Jsch.JSchException"/>
private Session CreateSession(string host, SshFenceByTcpPort.Args args)
{
JSch jsch = new JSch();
foreach (string keyFile in GetKeyFiles())
{
jsch.AddIdentity(keyFile);
}
JSch.SetLogger(new SshFenceByTcpPort.LogAdapter());
Session session = jsch.GetSession(args.user, host, args.sshPort);
session.SetConfig("StrictHostKeyChecking", "no");
return(session);
}
public virtual void TestArgsParsing()
{
SshFenceByTcpPort.Args args = new SshFenceByTcpPort.Args(null);
Assert.Equal(Runtime.GetProperty("user.name"), args.user);
Assert.Equal(22, args.sshPort);
args = new SshFenceByTcpPort.Args(string.Empty);
Assert.Equal(Runtime.GetProperty("user.name"), args.user);
Assert.Equal(22, args.sshPort);
args = new SshFenceByTcpPort.Args("12345");
Assert.Equal("12345", args.user);
Assert.Equal(22, args.sshPort);
args = new SshFenceByTcpPort.Args(":12345");
Assert.Equal(Runtime.GetProperty("user.name"), args.user);
Assert.Equal(12345, args.sshPort);
args = new SshFenceByTcpPort.Args("foo:2222");
Assert.Equal("foo", args.user);
Assert.Equal(2222, args.sshPort);
}
/// <exception cref="Org.Apache.Hadoop.HA.BadFencingConfigurationException"/>
public virtual bool TryFence(HAServiceTarget target, string argsStr)
{
SshFenceByTcpPort.Args args = new SshFenceByTcpPort.Args(argsStr);
IPEndPoint serviceAddr = target.GetAddress();
string host = serviceAddr.GetHostName();
Session session;
try
{
session = CreateSession(serviceAddr.GetHostName(), args);
}
catch (JSchException e)
{
Log.Warn("Unable to create SSH session", e);
return(false);
}
Log.Info("Connecting to " + host + "...");
try
{
session.Connect(GetSshConnectTimeout());
}
catch (JSchException e)
{
Log.Warn("Unable to connect to " + host + " as user " + args.user, e);
return(false);
}
Log.Info("Connected to " + host);
try
{
return(DoFence(session, serviceAddr));
}
catch (JSchException e)
{
Log.Warn("Unable to achieve fencing on remote host", e);
return(false);
}
finally
{
session.Disconnect();
}
}
