/// <exception cref="System.IO.IOException"/>
internal EditLogBackupOutputStream(NamenodeRegistration bnReg, JournalInfo journalInfo
)
: base()
{
// RPC proxy to backup node
// backup node registration
// active node registration
// serialized output sent to backup node
// backup node
// active name-node
this.bnRegistration = bnReg;
this.journalInfo = journalInfo;
IPEndPoint bnAddress = NetUtils.CreateSocketAddr(bnRegistration.GetAddress());
try
{
this.backupNode = NameNodeProxies.CreateNonHAProxy <JournalProtocol>(new HdfsConfiguration
(), bnAddress, UserGroupInformation.GetCurrentUser(), true).GetProxy();
}
catch (IOException e)
{
Storage.Log.Error("Error connecting to: " + bnAddress, e);
throw;
}
this.doubleBuf = new EditsDoubleBuffer(DefaultBufferSize);
this.@out = new DataOutputBuffer(DefaultBufferSize);
}
public override FailoverProxyProvider.ProxyInfo <T> GetProxy()
{
lock (this)
{
// Create a non-ha proxy if not already created.
if (nnProxyInfo == null)
{
try
{
// Create a proxy that is not wrapped in RetryProxy
IPEndPoint nnAddr = NameNode.GetAddress(nameNodeUri);
nnProxyInfo = new FailoverProxyProvider.ProxyInfo <T>(NameNodeProxies.CreateNonHAProxy
(conf, nnAddr, xface, UserGroupInformation.GetCurrentUser(), false).GetProxy(),
nnAddr.ToString());
}
catch (IOException ioe)
{
throw new RuntimeException(ioe);
}
}
return(nnProxyInfo);
}
}
/// <summary>Lazily initialize the RPC proxy object.</summary>
public override FailoverProxyProvider.ProxyInfo <T> GetProxy()
{
lock (this)
{
ConfiguredFailoverProxyProvider.AddressRpcProxyPair <T> current = proxies[currentProxyIndex
];
if (current.namenode == null)
{
try
{
current.namenode = NameNodeProxies.CreateNonHAProxy(conf, current.address, xface,
ugi, false, fallbackToSimpleAuth).GetProxy();
}
catch (IOException e)
{
Log.Error("Failed to create RPC proxy to NameNode", e);
throw new RuntimeException(e);
}
}
return(new FailoverProxyProvider.ProxyInfo <T>(current.namenode, current.address.ToString
()));
}
}
/// <exception cref="System.IO.IOException"/>
private NamespaceInfo Handshake(Configuration conf)
{
// connect to name node
IPEndPoint nnAddress = NameNode.GetServiceAddress(conf, true);
this.namenode = NameNodeProxies.CreateNonHAProxy <NamenodeProtocol>(conf, nnAddress
, UserGroupInformation.GetCurrentUser(), true).GetProxy();
this.nnRpcAddress = NetUtils.GetHostPortString(nnAddress);
this.nnHttpAddress = DFSUtil.GetInfoServer(nnAddress, conf, DFSUtil.GetHttpClientScheme
(conf)).ToURL();
// get version and id info from the name-node
NamespaceInfo nsInfo = null;
while (!IsStopRequested())
{
try
{
nsInfo = Handshake(namenode);
break;
}
catch (SocketTimeoutException e)
{
// name-node is busy
Log.Info("Problem connecting to server: " + nnAddress);
try
{
Sharpen.Thread.Sleep(1000);
}
catch (Exception)
{
Log.Warn("Encountered exception ", e);
}
}
}
return(nsInfo);
}
/// <exception cref="System.IO.IOException"/>
private NamenodeProtocol CreateNNProtocolProxy()
{
return(NameNodeProxies.CreateNonHAProxy <NamenodeProtocol>(GetConf(), otherIpcAddr
, UserGroupInformation.GetLoginUser(), true).GetProxy());
}
/// <summary>Initialize SecondaryNameNode.</summary>
/// <exception cref="System.IO.IOException"/>
private void Initialize(Configuration conf, SecondaryNameNode.CommandLineOpts commandLineOpts
)
{
IPEndPoint infoSocAddr = GetHttpAddress(conf);
string infoBindAddress = infoSocAddr.GetHostName();
UserGroupInformation.SetConfiguration(conf);
if (UserGroupInformation.IsSecurityEnabled())
{
SecurityUtil.Login(conf, DFSConfigKeys.DfsSecondaryNamenodeKeytabFileKey, DFSConfigKeys
.DfsSecondaryNamenodeKerberosPrincipalKey, infoBindAddress);
}
// initiate Java VM metrics
DefaultMetricsSystem.Initialize("SecondaryNameNode");
JvmMetrics.Create("SecondaryNameNode", conf.Get(DFSConfigKeys.DfsMetricsSessionIdKey
), DefaultMetricsSystem.Instance());
// Create connection to the namenode.
shouldRun = true;
nameNodeAddr = NameNode.GetServiceAddress(conf, true);
this.conf = conf;
this.namenode = NameNodeProxies.CreateNonHAProxy <NamenodeProtocol>(conf, nameNodeAddr
, UserGroupInformation.GetCurrentUser(), true).GetProxy();
// initialize checkpoint directories
fsName = GetInfoServer();
checkpointDirs = FSImage.GetCheckpointDirs(conf, "/tmp/hadoop/dfs/namesecondary");
checkpointEditsDirs = FSImage.GetCheckpointEditsDirs(conf, "/tmp/hadoop/dfs/namesecondary"
);
checkpointImage = new SecondaryNameNode.CheckpointStorage(conf, checkpointDirs, checkpointEditsDirs
);
checkpointImage.RecoverCreate(commandLineOpts.ShouldFormat());
checkpointImage.DeleteTempEdits();
namesystem = new FSNamesystem(conf, checkpointImage, true);
// Disable quota checks
namesystem.dir.DisableQuotaChecks();
// Initialize other scheduling parameters from the configuration
checkpointConf = new CheckpointConf(conf);
IPEndPoint httpAddr = infoSocAddr;
string httpsAddrString = conf.GetTrimmed(DFSConfigKeys.DfsNamenodeSecondaryHttpsAddressKey
, DFSConfigKeys.DfsNamenodeSecondaryHttpsAddressDefault);
IPEndPoint httpsAddr = NetUtils.CreateSocketAddr(httpsAddrString);
HttpServer2.Builder builder = DFSUtil.HttpServerTemplateForNNAndJN(conf, httpAddr
, httpsAddr, "secondary", DFSConfigKeys.DfsSecondaryNamenodeKerberosInternalSpnegoPrincipalKey
, DFSConfigKeys.DfsSecondaryNamenodeKeytabFileKey);
nameNodeStatusBeanName = MBeans.Register("SecondaryNameNode", "SecondaryNameNodeInfo"
, this);
infoServer = builder.Build();
infoServer.SetAttribute("secondary.name.node", this);
infoServer.SetAttribute("name.system.image", checkpointImage);
infoServer.SetAttribute(JspHelper.CurrentConf, conf);
infoServer.AddInternalServlet("imagetransfer", ImageServlet.PathSpec, typeof(ImageServlet
), true);
infoServer.Start();
Log.Info("Web server init done");
HttpConfig.Policy policy = DFSUtil.GetHttpPolicy(conf);
int connIdx = 0;
if (policy.IsHttpEnabled())
{
IPEndPoint httpAddress = infoServer.GetConnectorAddress(connIdx++);
conf.Set(DFSConfigKeys.DfsNamenodeSecondaryHttpAddressKey, NetUtils.GetHostPortString
(httpAddress));
}
if (policy.IsHttpsEnabled())
{
IPEndPoint httpsAddress = infoServer.GetConnectorAddress(connIdx);
conf.Set(DFSConfigKeys.DfsNamenodeSecondaryHttpsAddressKey, NetUtils.GetHostPortString
(httpsAddress));
}
legacyOivImageDir = conf.Get(DFSConfigKeys.DfsNamenodeLegacyOivImageDirKey);
Log.Info("Checkpoint Period :" + checkpointConf.GetPeriod() + " secs " + "(" +
checkpointConf.GetPeriod() / 60 + " min)");
Log.Info("Log Size Trigger :" + checkpointConf.GetTxnCount() + " txns");
}
