public void GetAndSetWithMultipleHostsAndSingleServerOutage()
{
try
{
NameValueCollection settings = new NameValueCollection();
settings.Add("ServerList", TestConfig.GetConfig().GetAppSetting("ServerList") + "," + TestConfig.GetConfig().GetAppSetting("SecondaryMemcachedServer"));
settings.Add("poolname", Guid.NewGuid().ToString());
using (MemcachedCacheManager _mc = new MemcachedCacheManager(settings))
{
_mc.Flush();
string keyBase = "testKey" + Guid.NewGuid().ToString();
string obj = testString;
Console.WriteLine("Multiple servers Metrics obj size:" + obj.Length + " bytes");
long begin = DateTime.Now.Ticks;
for (int i = 0; i < runs; i++)
{
_mc.Add(keyBase + i, obj);
}
long end = DateTime.Now.Ticks;
long time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
service.Stop();
service.WaitForStatus(ServiceControllerStatus.Stopped, timeout);
Console.WriteLine("Stoping one of the servers between set and get");
begin = DateTime.Now.Ticks;
int hits = 0;
int misses = 0;
for (int i = 0; i < runs; i++)
{
string str = (string)_mc.GetData(keyBase + i);
if (str != null)
++hits;
else
++misses;
}
end = DateTime.Now.Ticks;
time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
Console.WriteLine("Cache hits: " + hits.ToString());
Console.WriteLine("Cache misses: " + misses.ToString());
Assert.IsTrue(misses != runs);
keyBase = "testKey" + Guid.NewGuid().ToString();
Console.WriteLine("Get and set after server downed obj size:" + obj.Length + " bytes");
begin = DateTime.Now.Ticks;
for (int i = 0; i < runs; i++)
{
_mc.Add(keyBase + i, obj);
}
end = DateTime.Now.Ticks;
time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
begin = DateTime.Now.Ticks;
hits = 0;
misses = 0;
for (int i = 0; i < runs; i++)
{
string str = (string)_mc.GetData(keyBase + i);
if (str != null)
++hits;
else
++misses;
}
end = DateTime.Now.Ticks;
time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
Console.WriteLine("Cache hits: " + hits.ToString());
Console.WriteLine("Cache misses: " + misses.ToString());
Assert.IsTrue(hits != 0);
//now restart failed server and see how memcached handles it
if (service.Status != ServiceControllerStatus.Running)
{
service.Start();
service.WaitForStatus(ServiceControllerStatus.Running, timeout);
}
keyBase = "testKey" + Guid.NewGuid().ToString();
Console.WriteLine("Get and set after downed server returns obj size:" + obj.Length + " bytes");
begin = DateTime.Now.Ticks;
for (int i = 0; i < runs; i++)
{
_mc.Add(keyBase + i, obj);
}
end = DateTime.Now.Ticks;
time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
begin = DateTime.Now.Ticks;
hits = 0;
misses = 0;
for (int i = 0; i < runs; i++)
{
string str = (string)_mc.GetData(keyBase + i);
if (str != null)
++hits;
else
++misses;
}
end = DateTime.Now.Ticks;
time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
Console.WriteLine("Cache hits: " + hits.ToString());
Console.WriteLine("Cache misses: " + misses.ToString());
Assert.IsTrue(hits != 0);
//check the distrubtion of keys...
MemcachedClient client = ((MemcachedCacheManager)_mc).memcachedClient;
DateTime t = DateTime.Now.AddSeconds(3.0);
while (t > DateTime.Now) { }
foreach (string server in SockIOPool.GetInstance(client.PoolName).Servers)
{
if (!String.IsNullOrEmpty(server))
{
ArrayList servers = new ArrayList();
servers.Add(server);
Hashtable stats = client.Stats(servers);
//int totalItems = Int32.Parse(((Hashtable)stats[server])["total_items"].ToString());
Console.WriteLine(String.Format("Server {0}: {1}", server, ((Hashtable)(client.Stats(servers))[server])["total_items"]));
//Assert.IsTrue(totalItems != 0);
}
}
}
}
finally
{//reset to single source
StartUp();
}
}
public void FlushAll()
{
NameValueCollection settings = new NameValueCollection();
settings.Add("ServerList", TestConfig.GetConfig().GetAppSetting("ServerList"));
settings.Add("poolname", Guid.NewGuid().ToString());
using (MemcachedCacheManager _mc = new MemcachedCacheManager(settings))
{
string keyBase = "testKey" + Guid.NewGuid().ToString();
string obj = testString;
//add with a day expirey
_mc.Add(keyBase, obj);
//WriteOutStats("After first add");
string str = (string)_mc.GetData(keyBase);
//WriteOutStats("After first get");
Assert.IsTrue(str != null, "Test 1:Returned string should not be null");
//check if it exists
Assert.IsTrue(_mc.Contains(keyBase), "Test 2: Key should exist as it was just saved");
//flush all keys
_mc.Flush();
str = (string)_mc.GetData(keyBase);
Assert.IsTrue(str == null, "Test 3:Returned string should be null");
Assert.IsTrue(!_mc.Contains(keyBase), "Test 4: Key should exist as it was just flushed");
}
}
public void GetAndSetWithMultipleHosts()
{
try
{
NameValueCollection settings = new NameValueCollection();
settings.Add("ServerList", TestConfig.GetConfig().GetAppSetting("ServerList") + "," + TestConfig.GetConfig().GetAppSetting("SecondaryMemcachedServer"));
settings.Add("poolname", Guid.NewGuid().ToString());
using (MemcachedCacheManager _mc = new MemcachedCacheManager(settings))
{
_mc.Flush();
string keyBase = "testKey" + Guid.NewGuid().ToString();
string obj = testString;
Console.WriteLine("Multiple servers Metrics obj size:" + obj.Length + " bytes");
long begin = DateTime.Now.Ticks;
for (int i = 0; i < runs; i++)
{
_mc.Add(keyBase + i, obj);
}
long end = DateTime.Now.Ticks;
long time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
begin = DateTime.Now.Ticks;
int hits = 0;
int misses = 0;
for (int i = 0; i < runs; i++)
{
string str = (string)_mc.GetData(keyBase + i);
if (str != null)
++hits;
else
++misses;
}
end = DateTime.Now.Ticks;
time = end - begin;
Console.WriteLine(runs + " gets: " + new TimeSpan(time).ToString() + "ms (" + (double)TimeSpan.FromTicks(time).Milliseconds / runs + "ms per get)");
Console.WriteLine("Cache hits: " + hits.ToString());
Console.WriteLine("Cache misses: " + misses.ToString());
Assert.IsTrue(misses == 0);
}
}
finally
{//reset to single source
StartUp();
}
}