public void SingleServerReaderSingleServerUpdater2(bool useReaderCommit)
{
const UInt32 dbNum = 567;
using (ServerClientSession updater = new ServerClientSession(systemDir))
using (ServerClientSession reader = new ServerClientSession(systemDir, null, 2000, true, false, false, CacheEnum.No)) // CacheEnum.No or cache validating on session.Begin() - makes test fail
{
updater.BeginUpdate();
Database db = updater.OpenDatabase(dbNum, true, false);
if (db != null)
{
updater.DeleteDatabase(db);
}
updater.Checkpoint();
Man man;
Placement place = new Placement(dbNum, 1, 1, 2);
for (int i = 0; i < 100; i++)
{
man = new Man();
man.Persist(place, updater);
}
updater.Commit();
reader.BeginRead();
db = reader.OpenDatabase(dbNum);
foreach (Page page in db)
{
Assert.True(page.PageInfo.VersionNumber == 1);
}
if (useReaderCommit)
{
reader.Commit();
}
updater.BeginUpdate();
if (useReaderCommit)
{
reader.BeginRead();
}
else
{
reader.ForceDatabaseCacheValidation();
}
for (int i = 1; i < 25; i++)
{
db = reader.OpenDatabase(dbNum);
foreach (Page page in db)
{
if (page.PageNumber > 0)
{
Assert.True(page.PageInfo.VersionNumber == (ulong)i);
Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
}
}
updater.Commit(); // must commit updater first, we validate and update reader on BeginRead or ForceDatabaseCacheValidation
if (useReaderCommit)
{
reader.Commit();
reader.BeginRead();
}
else
{
reader.ForceDatabaseCacheValidation();
}
updater.BeginUpdate();
}
Database db2 = reader.OpenDatabase(dbNum);
db = updater.OpenDatabase(dbNum);
for (int i = 25; i < 50; i++)
{
foreach (Page page in db)
{
if (page.PageNumber > 0)
{
Assert.True(page.PageInfo.VersionNumber == (ulong)i);
Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
}
}
updater.FlushUpdates(); // now server will see updated version of pages
foreach (Page page in db2)
{
if (page.PageNumber > 0)
{ // BUG Nov 8, 2011 1.0.4.0 reader sees version 28 when it should see version 27
Assert.True(page.PageInfo.VersionNumber == (ulong)i); // reader should see the commited version of the page, not the uncommited updated version
Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
}
}
reader.ClearPageCache(); // required or else we will use cached page and Assert (see line above) will fail
System.GC.Collect(); // force weak referenced pages to be garbage collected (again to avoid Assert failure)
updater.Checkpoint();
}
reader.Commit();
updater.DeleteDatabase(db);
updater.Commit();
}
}
public void PagesWritten()
{
using (ServerClientSession session = new ServerClientSession(systemDir, systemHost))
{
Placement place = new Placement(789);
session.BeginUpdate();
session.RegisterClass(typeof(Person));
session.RegisterClass(typeof(VelocityDbList <WeakIOptimizedPersistableReference <Person> >));
session.RegisterClass(typeof(VelocityDbSchema.Samples.AllSupportedSample.Pet));
session.RegisterClass(typeof(System.Guid));
session.RegisterClass(typeof(AutoPlacement));
session.Checkpoint();
Person person = new Person();
person.m_friends.Persist(place, session);
person.Persist(place, session);
session.FlushUpdates();
person = new Person();
person.Persist(place, session);
using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
{
Placement place2 = new Placement(7891);
session2.BeginUpdate();
Person person2 = new Person();
person2.m_friends.Persist(place2, session2);
person2.Persist(place2, session2);
session2.FlushUpdates();
person2 = new Person();
person2.Persist(place2, session2);
session2.Commit();
}
using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
{
Placement place2 = new Placement(7892);
session2.BeginUpdate();
Person person2 = new Person();
person2.m_friends.Persist(place2, session2);
person2.Persist(place2, session2);
session2.FlushUpdates();
person2 = new Person();
person2.m_friends.Persist(place2, session2);
person2.Persist(place2, session2);
session2.Commit();
}
using (ServerClientSession session2 = new ServerClientSession(systemDir, systemHost))
{
Placement place2 = new Placement(7893);
session2.BeginUpdate();
Person person2 = new Person();
person2.m_friends.Persist(place2, session2);
person2.Persist(place2, session2);
session2.FlushUpdates();
person2 = new Person();
person2.Persist(place2, session2);
using (ServerClientSession session3 = new ServerClientSession(systemDir, systemHost))
{
Placement place3 = new Placement(7894);
session3.BeginUpdate();
Person person3 = new Person();
person3.m_friends.Persist(place3, session3);
person3.Persist(place3, session3);
session3.FlushUpdates();
person3 = new Person();
person3.m_friends.Persist(place3, session3);
person3.Persist(place3, session3);
session.Commit();
session2.Commit();
session3.Commit();
}
}
}
}
public void SingleServerReaderSingleServerUpdater1()
{
ServerClientSession updater = new ServerClientSession(systemDir);
ServerClientSession reader = new ServerClientSession(systemDir);
const UInt32 dbNum = 345;
try
{
updater.BeginUpdate();
Man man;
Placement place = new Placement(dbNum, 1, 1, 2);
for (int i = 0; i < 100; i++)
{
man = new Man();
man.Persist(place, updater);
}
updater.Commit();
reader.BeginRead();
Database db = reader.OpenDatabase(dbNum);
foreach (Page page in db)
{
Assert.True(page.PageInfo.VersionNumber == 1);
}
reader.Commit();
updater.BeginUpdate();
reader.BeginRead();
for (int i = 1; i < 25; i++)
{
db = reader.OpenDatabase(dbNum);
foreach (Page page in db)
{
if (page.PageNumber > 0)
{
Assert.True(page.PageInfo.VersionNumber == (ulong)i);
Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
}
}
reader.Commit();
reader.BeginRead();
updater.Checkpoint();
reader.ForceDatabaseCacheValidation(); // we now validate on BeginRead so to make this test pass, we need to add this call after updater commit.
}
Database db2 = reader.OpenDatabase(dbNum);
db = updater.OpenDatabase(dbNum);
for (int i = 25; i < 50; i++)
{
foreach (Page page in db)
{
if (page.PageNumber > 0)
{
Assert.True(page.PageInfo.VersionNumber == (ulong)i);
Man manUpdated = (Man)updater.Open(dbNum, page.PageNumber, 1, true);
}
}
updater.Commit();
updater.BeginUpdate();
foreach (Page page in db2)
{
if (page.PageNumber > 0)
{
Assert.True(page.PageInfo.VersionNumber == (ulong)i + 1);
Man man2 = (Man)reader.Open(dbNum, page.PageNumber, 1, false);
}
}
reader.ClearPageCache(); // required or else we will use cached page and Assert (see line above) will fail
System.GC.Collect(); // force weak referenced pages to be garbage collected (again to avoid Assert failure)
}
reader.Commit();
updater.DeleteDatabase(db);
updater.Commit();
}
finally
{
updater.Dispose();
reader.Dispose();
}
}