How do I switch back to cloudera express edition?

[#1]

I tried to install cdh5.3 using cloudera manager, but the process hangs in between. Might be because of extra services provided by the cloudera manager enterprise edition are not supported on my hardware. I want to go back to cloudera manager express.

[#2]

It is unlikely that the enterprise features are blocking your
installation. How large is your cluster and at what stage are you
having difficulties? Be as descriptive as possible and please provide
screenshots if you could

[#3]

The cluster is pretty small, just 3 nodes with 1 gb ram each. ubuntu 14.04 Trusty 64 bit. It fails at the connect tests at the embedded database test page before installing the components.

I tried different combination of roles so that only one node is not pressed for resources than others. That did work, but now the process hangs during installing various services on the nodes.

The cloudera-scm-server has to be restarted manually, to proceed again. 

Thanks!

[#4]

some log from cloudera-scm-server:

2015-01-15 11:00:48,683 INFO Metric-schema-update:com.cloudera.cmon.components.MetricSchemaManager: Updating schema work aggregates
2015-01-15 11:00:50,314 INFO Metric-schema-update:com.cloudera.cmon.components.MetricSchemaManager: Registering work aggregates
2015-01-15 11:00:50,656 INFO CMMetricsForwarder-0:com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder: Failed to send metrics.
java.lang.reflect.UndeclaredThrowableException
        at com.sun.proxy.$Proxy100.writeMetrics(Unknown Source)
        at com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder.sendWithAvro(ClouderaManagerMetricsForwarder.java:287)
        at com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder.sendMetrics(ClouderaManagerMetricsForwarder.java:274)
        at com.cloudera.server.cmf.components.ClouderaManagerMetricsForwarder.run(ClouderaManagerMetricsForwarder.java:129)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.avro.AvroRemoteException: java.net.ConnectException: Connection refused
        at org.apache.avro.ipc.specific.SpecificRequestor.invoke(SpecificRequestor.java:88)
        ... 11 more
Caused by: java.net.ConnectException: Connection refused
        at java.net.PlainSocketImpl.socketConnect(Native Method)
        at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
        at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
        at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
        at java.net.Socket.connect(Socket.java:579)
        at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)
        at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)
        at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)
        at sun.net.www.http.HttpClient.New(HttpClient.java:308)
        at sun.net.www.http.HttpClient.New(HttpClient.java:326)
        at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932)
        at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850)
        at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1091)
        at org.apache.avro.ipc.HttpTransceiver.writeBuffers(HttpTransceiver.java:71)
        at org.apache.avro.ipc.Transceiver.transceive(Transceiver.java:58)
        at org.apache.avro.ipc.Transceiver.transceive(Transceiver.java:72)
        at org.apache.avro.ipc.Requestor.request(Requestor.java:147)
        at org.apache.avro.ipc.Requestor.request(Requestor.java:101)
        at org.apache.avro.ipc.specific.SpecificRequestor.invoke(SpecificRequestor.java:72)
        ... 11 more