Пример #1
0
            public CCMCluster(CCMBridge cassandraCluster, Builder builder)
            {
                int tryNo = 0;

                this.Cluster = builder.AddContactPoints(IP_PREFIX + "1").Build();
RETRY:
                this.CassandraCluster = cassandraCluster;
                try
                {
                    this.Session = Cluster.Connect();
                    if (tryNo > 0)
                    {
                        Cluster.RefreshSchema();
                    }
                }
                catch (NoHostAvailableException e)
                {
                    if (tryNo < 10)
                    {
                        Console.WriteLine("CannotConnect to CCM node - give another try");
                        tryNo++;
                        Thread.Sleep(1000);
                        goto RETRY;
                    }
                    foreach (var entry in e.Errors)
                    {
                        Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
                    }
                    throw new InvalidOperationException(null, e);
                }
            }
Пример #2
0
        private static void waitFor(string node, Cluster cluster, int maxTry, bool waitForDead, bool waitForOut)
        {
            // In the case where the we've killed the last node in the cluster, if we haven't
            // tried doing an actual query, the driver won't realize that last node is dead until'
            // keep alive kicks in, but that's a fairly long time. So we cheat and trigger a force'
            // the detection by forcing a request.
            bool disconnected = false;
            if (waitForDead || waitForOut)
            disconnected = !cluster.RefreshSchema(null, null);

            if (disconnected)
            return;

            IPAddress address;
            try {
             address = IPAddress.Parse(node);
            } catch (Exception e) {
            // That's a problem but that's not *our* problem
            return;
            }

            Metadata metadata = cluster.Metadata;
            for (int i = 0; i < maxTry; ++i) {
            bool found = false;
            foreach (Host host in metadata.AllHosts())
            {
                if (host.Address.Equals(address))
                {
                    found = true;
                    if (testHost(host, waitForDead))
                        return;
                }
            }
            if (waitForDead && !found)
                return;
            try { Thread.Sleep(1000); } catch (Exception e) {}
            }

            foreach(Host host in metadata.AllHosts())
            {
            if (host.Address.Equals(address)) {
                if (testHost(host, waitForDead)) {
                    return;
                } else {
                    // logging it because this give use the timestamp of when this happens
                    logger.Info(node + " is not " + (waitForDead ? "DOWN" : "UP") + " after " + maxTry + "s");
                    throw new InvalidOperationException(node + " is not " + (waitForDead ? "DOWN" : "UP") + " after " + maxTry + "s");
                }
            }
            }

            if (waitForOut){
            return;
            } else {
            logger.Info(node + " is not part of the cluster after " + maxTry + "s");
            throw new InvalidOperationException(node + " is not part of the cluster after " + maxTry + "s");
            }
        }
Пример #3
0
            private CCMCluster(CCMBridge ccmBridge, Builder builder)
            {
                int tryNo = 0;

                builder.AddContactPoints(Options.Default.IP_PREFIX + "1");
                if (Options.Default.USE_COMPRESSION)
                {
                    builder.WithCompression(CompressionType.Snappy);
                    Console.WriteLine("Using Compression");
                }
                if (Options.Default.USE_NOBUFFERING)
                {
                    builder.WithoutRowSetBuffering();
                    Console.WriteLine("No buffering");
                }

                this.Cluster = builder.Build();
RETRY:
                this.CCMBridge = ccmBridge;
                try
                {
                    this.Session = Cluster.Connect();
                    if (tryNo > 0)
                    {
                        Cluster.RefreshSchema();
                    }
                }
                catch (NoHostAvailableException e)
                {
                    if (tryNo < 10)
                    {
                        Console.WriteLine("CannotConnect to CCM node - give another try");
                        tryNo++;
                        Thread.Sleep(1000);
                        goto RETRY;
                    }
                    foreach (var entry in e.Errors)
                    {
                        Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
                    }
                    throw new InvalidOperationException(null, e);
                }
            }
Пример #4
0
            private CCMCluster(CCMBridge ccmBridge, Builder builder)
            {
                int tryNo = 0;
                builder.AddContactPoints(Options.Default.IP_PREFIX + "1");
                if (Options.Default.USE_COMPRESSION)
                {
                    builder.WithCompression(CompressionType.Snappy);
                    Console.WriteLine("Using Compression");
                }
                if (Options.Default.USE_NOBUFFERING)
                {
                    builder.WithoutRowSetBuffering();
                    Console.WriteLine("No buffering");
                }

                this.Cluster = builder.Build();
                RETRY:
                this.CCMBridge = ccmBridge;
                try
                {
                    this.Session = Cluster.Connect();
                    if(tryNo>0)
                        Cluster.RefreshSchema();
                }
                catch (NoHostAvailableException e)
                {
                    if (tryNo < 10)
                    {
                        Console.WriteLine("CannotConnect to CCM node - give another try");
                        tryNo++;
                        Thread.Sleep(1000);
                        goto RETRY;
                    }
                    foreach (var entry in e.Errors)
                        Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
                    throw new InvalidOperationException(null, e);
                }
            }
Пример #5
0
        private static void waitFor(string node, Cluster cluster, int maxTry, bool waitForDead, bool waitForOut)
        {
            // In the case where the we've killed the last node in the cluster, if we haven't
            // tried doing an actual query, the driver won't realize that last node is dead until'
            // keep alive kicks in, but that's a fairly long time. So we cheat and trigger a force'
            // the detection by forcing a request.
            bool disconnected = false;

            if (waitForDead || waitForOut)
            {
                disconnected = !cluster.RefreshSchema(null, null);
            }

            if (disconnected)
            {
                return;
            }

            IPAddress address;

            try
            {
                address = IPAddress.Parse(node);
            }
            catch (Exception e)
            {
                // That's a problem but that's not *our* problem
                return;
            }

            Metadata metadata = cluster.Metadata;

            for (int i = 0; i < maxTry; ++i)
            {
                bool found = false;
                foreach (Host host in metadata.AllHosts())
                {
                    if (host.Address.Equals(address))
                    {
                        found = true;
                        if (testHost(host, waitForDead))
                        {
                            return;
                        }
                    }
                }
                if (waitForDead && !found)
                {
                    return;
                }
                try { Thread.Sleep(1000); }
                catch (Exception e) { }
            }

            foreach (Host host in metadata.AllHosts())
            {
                if (host.Address.Equals(address))
                {
                    if (testHost(host, waitForDead))
                    {
                        return;
                    }
                    else
                    {
                        // logging it because this give use the timestamp of when this happens
                        logger.Info(node + " is not " + (waitForDead ? "DOWN" : "UP") + " after " + maxTry + "s");
                        throw new InvalidOperationException(node + " is not " + (waitForDead ? "DOWN" : "UP") + " after " + maxTry + "s");
                    }
                }
            }

            if (waitForOut)
            {
                return;
            }
            else
            {
                logger.Info(node + " is not part of the cluster after " + maxTry + "s");
                throw new InvalidOperationException(node + " is not part of the cluster after " + maxTry + "s");
            }
        }
Пример #6
0
 public CCMCluster(CCMBridge cassandraCluster, Builder builder)
 {
     int tryNo = 0;
     this.Cluster = builder.AddContactPoints(IP_PREFIX + "1").Build();
     RETRY:
     this.CassandraCluster = cassandraCluster;
     try
     {
         this.Session = Cluster.Connect();
         if(tryNo>0)
             Cluster.RefreshSchema();
     }
     catch (NoHostAvailableException e)
     {
         if (tryNo < 10)
         {
             Console.WriteLine("CannotConnect to CCM node - give another try");
             tryNo++;
             Thread.Sleep(1000);
             goto RETRY;
         }
         foreach (var entry in e.Errors)
             Trace.TraceError("Error connecting to " + entry.Key + ": " + entry.Value);
         throw new InvalidOperationException(null, e);
     }
 }