public void ShouldDeleteCommitPointIfCouldNotRecoverFromIt()
{
var dataDir = NewDataPath("ShouldDeleteCommitPointIfCouldNotRecoverFromIt");
string indexFullPath;
string indexStoragePath;
int indexId;
string commitPointsDirectory;
var index = new MapRecoveryTestIndex();
using (var server = GetNewServer(runInMemory: false, dataDirectory: dataDir))
{
CommitPointAfterEachCommit(server.SystemDatabase.Configuration);
using (var store = new DocumentStore {
Url = "http://localhost:8079"
}.Initialize())
{
index.Execute(store);
using (var session = store.OpenSession())
{
session.Store(new Recovery
{
Name = "One",
Number = 1
});
session.SaveChanges(); // first commit point
WaitForIndexing(store);
server.SystemDatabase.IndexStorage.FlushMapIndexes();
server.SystemDatabase.IndexStorage.FlushReduceIndexes();
session.Store(new Recovery
{
Name = "Two",
Number = 2
});
session.SaveChanges(); // second commit point
WaitForIndexing(store);
server.SystemDatabase.IndexStorage.FlushMapIndexes();
server.SystemDatabase.IndexStorage.FlushReduceIndexes();
session.Store(new Recovery
{
Name = "Three",
Number = 3
});
session.SaveChanges(); // second commit point
WaitForIndexing(store, timeout: TimeSpan.FromSeconds(60));
server.SystemDatabase.IndexStorage.FlushMapIndexes();
server.SystemDatabase.IndexStorage.FlushReduceIndexes();
}
}
Index indexInstance = server.SystemDatabase.IndexStorage.GetIndexInstance(index.IndexName);
commitPointsDirectory = Path.Combine(server.SystemDatabase.Configuration.IndexStoragePath,
indexInstance.IndexId + "\\CommitPoints");
indexFullPath = Path.Combine(server.SystemDatabase.Configuration.IndexStoragePath,
indexInstance.IndexId.ToString(CultureInfo.InvariantCulture));
indexStoragePath = server.SystemDatabase.Configuration.IndexStoragePath;
indexId = indexInstance.IndexId;
}
// make sure that there are 3 commit points
var directories = Directory.GetDirectories(commitPointsDirectory);
Assert.Equal(3, directories.Length);
// mess "index.CommitPoint" file in the SECOND and THIRD commit points by adding additional files required to recover from it
for (int i = 1; i < 3; i++)
{
IndexCommitPoint commitPoint;
Assert.True(IndexStorage.TryGetCommitPoint(new IndexCommitPointDirectory(indexStoragePath, indexId.ToString(CultureInfo.InvariantCulture), directories[i].Split(new[] { '\\' }).Last()), out commitPoint));
commitPoint.SegmentsInfo.ReferencedFiles.Add("file-that-doesnt-exist");
using (var commitPointFile = File.Open(Path.Combine(directories[i], "index.CommitPoint"), FileMode.Open))
{
using (var sw = new StreamWriter(commitPointFile))
{
var textWriter = new JsonTextWriter(sw);
JsonExtensions.CreateDefaultJsonSerializer().Serialize(textWriter, commitPoint);
sw.Flush();
}
}
}
IndexMessing.MessSegmentsFile(indexFullPath);
using (GetNewServer(runInMemory: false, dataDirectory: dataDir)) // do not delete previous directory
{
using (var store = new DocumentStore {
Url = "http://localhost:8079"
}.Initialize())
{
using (var session = store.OpenSession())
{
var result =
session.Query <Recovery, MapRecoveryTestIndex>().Customize(x => x.WaitForNonStaleResults()).ToList();
Assert.Equal(3, result.Count);
}
}
}
// there should be exactly 2 commit points:
// the first one which we used to recover
// and the second one created because of indexing after recovery
Assert.Equal(2, Directory.GetDirectories(commitPointsDirectory).Length);
}