/// <exception cref="System.IO.IOException"/>
private MiniJournalCluster(MiniJournalCluster.Builder b)
{
Log.Info("Starting MiniJournalCluster with " + b.numJournalNodes + " journal nodes"
);
if (b.baseDir != null)
{
this.baseDir = new FilePath(b.baseDir);
}
else
{
this.baseDir = new FilePath(MiniDFSCluster.GetBaseDirectory());
}
nodes = new MiniJournalCluster.JNInfo[b.numJournalNodes];
for (int i = 0; i < b.numJournalNodes; i++)
{
if (b.format)
{
FilePath dir = GetStorageDir(i);
Log.Debug("Fully deleting JN directory " + dir);
FileUtil.FullyDelete(dir);
}
JournalNode jn = new JournalNode();
jn.SetConf(CreateConfForNode(b, i));
jn.Start();
nodes[i] = new MiniJournalCluster.JNInfo(jn);
}
}
private Configuration CreateConfForNode(MiniJournalCluster.Builder b, int idx)
{
Configuration conf = new Configuration(b.conf);
FilePath logDir = GetStorageDir(idx);
conf.Set(DFSConfigKeys.DfsJournalnodeEditsDirKey, logDir.ToString());
conf.Set(DFSConfigKeys.DfsJournalnodeRpcAddressKey, "localhost:0");
conf.Set(DFSConfigKeys.DfsJournalnodeHttpAddressKey, "localhost:0");
return(conf);
}
public virtual void TestStartStop()
{
Configuration conf = new Configuration();
MiniJournalCluster c = new MiniJournalCluster.Builder(conf).Build();
try
{
URI uri = c.GetQuorumJournalURI("myjournal");
string[] addrs = uri.GetAuthority().Split(";");
NUnit.Framework.Assert.AreEqual(3, addrs.Length);
JournalNode node = c.GetJournalNode(0);
string dir = node.GetConf().Get(DFSConfigKeys.DfsJournalnodeEditsDirKey);
NUnit.Framework.Assert.AreEqual(new FilePath(MiniDFSCluster.GetBaseDirectory() +
"journalnode-0").GetAbsolutePath(), dir);
}
finally
{
c.Shutdown();
}
}
