Make the error messages returned by Scylla API server human readable
from 'nodetool'.
For example, if an API URL is missing, print out the following error:
[penberg@nero scylla-tools-java]$ ./bin/nodetool getcompactionthreshold ks test4
nodetool: Scylla API server HTTP GET to URL 'column_family/minimum_compaction/ks:test4' failed: Not found
See 'nodetool help' or 'nodetool help <command>'.
instead of the scary-looking error that we now print:
[penberg@nero scylla-tools-java]$ ./bin/nodetool getcompactionthreshold ks test4
error: Not found
-- StackTrace --
java.lang.RuntimeException: Not found
at com.scylladb.jmx.api.APIClient.getException(APIClient.java:116)
at com.scylladb.jmx.api.APIClient.getRawValue(APIClient.java:160)
at com.scylladb.jmx.api.APIClient.getRawValue(APIClient.java:174)
at com.scylladb.jmx.api.APIClient.getIntValue(APIClient.java:216)
at com.scylladb.jmx.api.APIClient.getIntValue(APIClient.java:220)
at org.apache.cassandra.db.ColumnFamilyStore.getMinimumCompactionThreshold(ColumnFamilyStore.java:475)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
[snip]
Message-Id: <1458032300-17704-1-git-send-email-penberg@scylladb.com>
Running 'nodetool status' now reports the following if the JMX proxy is
not able to connect to an API server:
nodetool: Unable to connect to Scylla API server: java.net.ConnectException: Connection refused
See 'nodetool help' or 'nodetool help <command>'.
instead of the scary-looking:
error: javax.ws.rs.ProcessingException (no security manager: RMI class loader disabled)
-- StackTrace --
java.lang.ClassNotFoundException: javax.ws.rs.ProcessingException (no security manager: RMI class loader disabled)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:393)
at sun.rmi.server.LoaderHandler.loadClass(LoaderHandler.java:185)
at java.rmi.server.RMIClassLoader$2.loadClass(RMIClassLoader.java:637)
at java.rmi.server.RMIClassLoader.loadClass(RMIClassLoader.java:264)
at sun.rmi.server.MarshalInputStream.resolveClass(MarshalInputStream.java:214)
That happens because the MBean propagates a
'javax.ws.rs.ProcessingException' to nodetool which does not have it in
it's classpath and loading via RMI fails.
Fixes#25.
Message-Id: <1457697628-31792-1-git-send-email-penberg@scylladb.com>
This patch adds a method to the APIClient that return a map of String
and Double.
It support both simple and with query parameters.
Signed-off-by: Amnon Heiman <amnon@scylladb.com>
