public virtual void TestSimpleRecovery()
{
NamespaceInfo nsi = NewNSInfo();
BookKeeperJournalManager bkjm = new BookKeeperJournalManager(conf, BKJMUtil.CreateJournalURI
("/hdfsjournal-simplerecovery"), nsi);
bkjm.Format(nsi);
EditLogOutputStream @out = bkjm.StartLogSegment(1, NameNodeLayoutVersion.CurrentLayoutVersion
);
for (long i = 1; i <= 100; i++)
{
FSEditLogOp op = FSEditLogTestUtil.GetNoOpInstance();
op.SetTransactionId(i);
@out.Write(op);
}
@out.SetReadyToFlush();
@out.Flush();
@out.Abort();
@out.Close();
NUnit.Framework.Assert.IsNull(zkc.Exists(bkjm.FinalizedLedgerZNode(1, 100), false
));
NUnit.Framework.Assert.IsNotNull(zkc.Exists(bkjm.InprogressZNode(1), false));
bkjm.RecoverUnfinalizedSegments();
NUnit.Framework.Assert.IsNotNull(zkc.Exists(bkjm.FinalizedLedgerZNode(1, 100), false
));
NUnit.Framework.Assert.IsNull(zkc.Exists(bkjm.InprogressZNode(1), false));
}
public virtual void TestNumberOfTransactionsWithGaps()
{
NamespaceInfo nsi = NewNSInfo();
BookKeeperJournalManager bkjm = new BookKeeperJournalManager(conf, BKJMUtil.CreateJournalURI
("/hdfsjournal-gaps"), nsi);
bkjm.Format(nsi);
long txid = 1;
for (long i = 0; i < 3; i++)
{
long start = txid;
EditLogOutputStream @out = bkjm.StartLogSegment(start, NameNodeLayoutVersion.CurrentLayoutVersion
);
for (long j = 1; j <= DefaultSegmentSize; j++)
{
FSEditLogOp op = FSEditLogTestUtil.GetNoOpInstance();
op.SetTransactionId(txid++);
@out.Write(op);
}
@out.Close();
bkjm.FinalizeLogSegment(start, txid - 1);
NUnit.Framework.Assert.IsNotNull(zkc.Exists(bkjm.FinalizedLedgerZNode(start, txid
- 1), false));
}
zkc.Delete(bkjm.FinalizedLedgerZNode(DefaultSegmentSize + 1, DefaultSegmentSize *
2), -1);
long numTrans = bkjm.GetNumberOfTransactions(1, true);
NUnit.Framework.Assert.AreEqual(DefaultSegmentSize, numTrans);
try
{
numTrans = bkjm.GetNumberOfTransactions(DefaultSegmentSize + 1, true);
NUnit.Framework.Assert.Fail("Should have thrown corruption exception by this point"
);
}
catch (JournalManager.CorruptionException)
{
}
// if we get here, everything is going good
numTrans = bkjm.GetNumberOfTransactions((DefaultSegmentSize * 2) + 1, true);
NUnit.Framework.Assert.AreEqual(DefaultSegmentSize, numTrans);
}
public virtual void TestNumberOfTransactionsWithInprogressAtEnd()
{
NamespaceInfo nsi = NewNSInfo();
BookKeeperJournalManager bkjm = new BookKeeperJournalManager(conf, BKJMUtil.CreateJournalURI
("/hdfsjournal-inprogressAtEnd"), nsi);
bkjm.Format(nsi);
long txid = 1;
for (long i = 0; i < 3; i++)
{
long start = txid;
EditLogOutputStream @out = bkjm.StartLogSegment(start, NameNodeLayoutVersion.CurrentLayoutVersion
);
for (long j = 1; j <= DefaultSegmentSize; j++)
{
FSEditLogOp op = FSEditLogTestUtil.GetNoOpInstance();
op.SetTransactionId(txid++);
@out.Write(op);
}
@out.Close();
bkjm.FinalizeLogSegment(start, (txid - 1));
NUnit.Framework.Assert.IsNotNull(zkc.Exists(bkjm.FinalizedLedgerZNode(start, (txid
- 1)), false));
}
long start_1 = txid;
EditLogOutputStream out_1 = bkjm.StartLogSegment(start_1, NameNodeLayoutVersion.CurrentLayoutVersion
);
for (long j_1 = 1; j_1 <= DefaultSegmentSize / 2; j_1++)
{
FSEditLogOp op = FSEditLogTestUtil.GetNoOpInstance();
op.SetTransactionId(txid++);
out_1.Write(op);
}
out_1.SetReadyToFlush();
out_1.Flush();
out_1.Abort();
out_1.Close();
long numTrans = bkjm.GetNumberOfTransactions(1, true);
NUnit.Framework.Assert.AreEqual((txid - 1), numTrans);
}
public virtual void TestRefinalizeAlreadyFinalizedInprogress()
{
URI uri = BKJMUtil.CreateJournalURI("/hdfsjournal-refinalizeInprogressLedger");
NamespaceInfo nsi = NewNSInfo();
BookKeeperJournalManager bkjm = new BookKeeperJournalManager(conf, uri, nsi);
bkjm.Format(nsi);
EditLogOutputStream @out = bkjm.StartLogSegment(1, NameNodeLayoutVersion.CurrentLayoutVersion
);
for (long i = 1; i <= 100; i++)
{
FSEditLogOp op = FSEditLogTestUtil.GetNoOpInstance();
op.SetTransactionId(i);
@out.Write(op);
}
@out.Close();
bkjm.Close();
string inprogressZNode = bkjm.InprogressZNode(1);
string finalizedZNode = bkjm.FinalizedLedgerZNode(1, 100);
NUnit.Framework.Assert.IsNotNull("inprogress znode doesn't exist", zkc.Exists(inprogressZNode
, null));
NUnit.Framework.Assert.IsNull("finalized znode exists", zkc.Exists(finalizedZNode
, null));
byte[] inprogressData = zkc.GetData(inprogressZNode, false, null);
// finalize
bkjm = new BookKeeperJournalManager(conf, uri, nsi);
bkjm.RecoverUnfinalizedSegments();
bkjm.Close();
NUnit.Framework.Assert.IsNull("inprogress znode exists", zkc.Exists(inprogressZNode
, null));
NUnit.Framework.Assert.IsNotNull("finalized znode doesn't exist", zkc.Exists(finalizedZNode
, null));
zkc.Create(inprogressZNode, inprogressData, ZooDefs.Ids.OpenAclUnsafe, CreateMode
.Persistent);
// should work fine
bkjm = new BookKeeperJournalManager(conf, uri, nsi);
bkjm.RecoverUnfinalizedSegments();
bkjm.Close();
}
/// <exception cref="System.IO.IOException"/>
/// <exception cref="Org.Apache.Zookeeper.KeeperException"/>
/// <exception cref="System.Exception"/>
private string StartAndFinalizeLogSegment(BookKeeperJournalManager bkjm, int startTxid
, int endTxid)
{
EditLogOutputStream @out = bkjm.StartLogSegment(startTxid, NameNodeLayoutVersion.
CurrentLayoutVersion);
for (long i = startTxid; i <= endTxid; i++)
{
FSEditLogOp op = FSEditLogTestUtil.GetNoOpInstance();
op.SetTransactionId(i);
@out.Write(op);
}
@out.Close();
// finalize the inprogress_1 log segment.
bkjm.FinalizeLogSegment(startTxid, endTxid);
string zkpath1 = bkjm.FinalizedLedgerZNode(startTxid, endTxid);
NUnit.Framework.Assert.IsNotNull(zkc.Exists(zkpath1, false));
NUnit.Framework.Assert.IsNull(zkc.Exists(bkjm.InprogressZNode(startTxid), false));
return(zkpath1);
}