Bug: cassandra-stress failed to connect over JMX
Status: Resolved
Priority: Normal
Resolution: Fixed
Created: 02/Mar/21 03:35
Resolved: 03/Mar/21 15:36

cassandra version: 4.0-beta4

When I run command:
cassandra-stress write n = 100 -rate threads = 1 -node 127.0.0.1 -log level=verbose

I get the following exception:


{code:java}
Connected to cluster: Test Cluster, max pending requests per connection 128, max connections per host 8
Datacenter: datacenter1; Host: /127.0.0.1:9042; Rack: rack1
Created keyspaces. Sleeping 1s for propagation.
Sleeping 2s...
Warming up WRITE with 25 iterations...
java.lang.RuntimeException: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ConfigurationException [Root exception is java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042]
	at org.apache.cassandra.stress.util.JmxCollector.connect(JmxCollector.java:99)
	at org.apache.cassandra.stress.util.JmxCollector.<init>(JmxCollector.java:85)
	at org.apache.cassandra.stress.report.StressMetrics.<init>(StressMetrics.java:108)
	at org.apache.cassandra.stress.StressAction.run(StressAction.java:228)
	at org.apache.cassandra.stress.StressAction.warmup(StressAction.java:124)
	at org.apache.cassandra.stress.StressAction.run(StressAction.java:69)
	at org.apache.cassandra.stress.Stress.run(Stress.java:155)
	at org.apache.cassandra.stress.Stress.main(Stress.java:63)
Caused by: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ConfigurationException [Root exception is java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042]
	at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369)
	at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270)
	at org.apache.cassandra.tools.NodeProbe.connect(NodeProbe.java:214)
	at org.apache.cassandra.tools.NodeProbe.<init>(NodeProbe.java:172)
	at org.apache.cassandra.stress.util.JmxCollector.connect(JmxCollector.java:95)
	... 7 more
Caused by: javax.naming.ConfigurationException [Root exception is java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042]
	at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:136)
	at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205)
	at javax.naming.InitialContext.lookup(InitialContext.java:417)
	at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1955)
	at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1922)
	at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287)
	... 11 more
Caused by: java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:620)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
	at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)
	at sun.rmi.registry.RegistryImpl_Stub.lookup(RegistryImpl_Stub.java:116)
	at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:132)
	... 16 more
Caused by: java.net.UnknownHostException: 127.0.0.1:9042
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:196)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
	at java.net.Socket.connect(Socket.java:606)
	at java.net.Socket.connect(Socket.java:555)
	at java.net.Socket.<init>(Socket.java:451)
	at java.net.Socket.<init>(Socket.java:228)
	at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
	at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:617)
	... 21 more
Failed to connect over JMX; not collecting these stats
Running WRITE with 1 threads for 100 iteration
java.lang.RuntimeException: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ConfigurationException [Root exception is java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042]
	at org.apache.cassandra.stress.util.JmxCollector.connect(JmxCollector.java:99)
	at org.apache.cassandra.stress.util.JmxCollector.<init>(JmxCollector.java:85)
	at org.apache.cassandra.stress.report.StressMetrics.<init>(StressMetrics.java:108)
	at org.apache.cassandra.stress.StressAction.run(StressAction.java:228)
	at org.apache.cassandra.stress.StressAction.run(StressAction.java:88)
	at org.apache.cassandra.stress.Stress.run(Stress.java:155)
	at org.apache.cassandra.stress.Stress.main(Stress.java:63)
Caused by: java.io.IOException: Failed to retrieve RMIServer stub: javax.naming.ConfigurationException [Root exception is java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042]
	at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:369)
	at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270)
	at org.apache.cassandra.tools.NodeProbe.connect(NodeProbe.java:214)
	at org.apache.cassandra.tools.NodeProbe.<init>(NodeProbe.java:172)
	at org.apache.cassandra.stress.util.JmxCollector.connect(JmxCollector.java:95)
	... 6 more
Caused by: javax.naming.ConfigurationException [Root exception is java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042]
	at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:136)
	at com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:205)
	at javax.naming.InitialContext.lookup(InitialContext.java:417)
	at javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1955)
	at javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1922)
	at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:287)
	... 10 more
Caused by: java.rmi.UnknownHostException: Unknown host: 127.0.0.1:9042; nested exception is:
	java.net.UnknownHostException: 127.0.0.1:9042
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:620)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
	at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)
	at sun.rmi.registry.RegistryImpl_Stub.lookup(RegistryImpl_Stub.java:116)
	at com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:132)
	... 15 more
Caused by: java.net.UnknownHostException: 127.0.0.1:9042
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:196)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394)
	at java.net.Socket.connect(Socket.java:606)
	at java.net.Socket.connect(Socket.java:555)
	at java.net.Socket.<init>(Socket.java:451)
	at java.net.Socket.<init>(Socket.java:228)
	at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
	at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:617)
	... 20 more
Failed to connect over JMX; not collecting these stats
type                                               total ops,    op/s,    pk/s,   row/s,    mean,     med,     .95,     .99,    .999,     max,   time,   stderr, errors,  gc: #,  max ms,  sum ms,  sdv ms,      mb
total,                                                    94,      94,      94,      94,     1.8,     1.7,     2.7,     4.3,     5.1,     5.1,    1.0,  0.00000,      0,      0,       0,       0,       0,       0
total,                                                   100,     381,     381,     381,     2.6,     1.6,     6.1,     6.1,     6.1,     6.1,    1.0,  0.52138,      0,      0,       0,       0,       0,       0


Results:
Op rate                   :       98 op/s  [WRITE: 98 op/s]
Partition rate            :       98 pk/s  [WRITE: 98 pk/s]
Row rate                  :       98 row/s [WRITE: 98 row/s]
Latency mean              :    1.9 ms [WRITE: 1.9 ms]
Latency median            :    1.7 ms [WRITE: 1.7 ms]
Latency 95th percentile   :    2.8 ms [WRITE: 2.8 ms]
Latency 99th percentile   :    5.1 ms [WRITE: 5.1 ms]
Latency 99.9th percentile :    6.1 ms [WRITE: 6.1 ms]
Latency max               :    6.1 ms [WRITE: 6.1 ms]
Total partitions          :        100 [WRITE: 100]
Total errors              :          0 [WRITE: 0]
Total GC count            : 0
Total GC memory           : 0.000 KiB
Total GC time             :    0.0 seconds
Avg GC time               :    NaN ms
StdDev GC time            :    0.0 ms
Total operation time      : 00:00:01

END
{code}