Commit Graph

83 Commits

Author SHA1 Message Date
Amnon Heiman
801af00ddb APIMetrics, APIMetricsRegistry: Return APIMeter and APITimer
Some of the specific functionality is needed from the APIMeter and
APITimer.

The MetricsRegistry now return the specific objects so they can be used
in their adapted form.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-17 11:22:43 +03:00
Amnon Heiman
d3b8ef1ae5 APITimer: Non pull based Timer
The yammer Timer object calculate rate based on a timer, which causes
periodic calls to the API.

This replaces the implementation so that a timer would get all its
values from the API.

For object registration the APITimer still inherit from Timer but
override all its functionality.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-17 11:12:01 +03:00
Amnon Heiman
eca6451832 APIHistogram: Support APITimer
With the move to APITimer, in many occasion a histogram will not update
itself, instead it will be updated by the APITimer.

This breaks the update values functionality so that a histogram that is
included in an APITimer will not try to update it self.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-17 11:08:05 +03:00
Amnon Heiman
4d1f8ed7c9 APIMeter: Move out of pull mode
This replaces the APIMeter implementation so it will not pull the API
regularly.

To by complient with the yammer object registration mechanism, it still
inherit from Meter, but all the functionalities are overriden.

Now all the data is taken from the API including the rate statistics.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-17 10:03:12 +03:00
Amnon Heiman
adf466519f APIClient: Support for non pull APIMeter
APIMeter will be modified not to use pulling and to retrieve the derived
information from the API.

To support that the APIClient was changed so it would be able to cache
json objects and histogram.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-17 09:35:42 +03:00
Amnon Heiman
a028e59699 CacheEntry: Support caching of jsonobject
This will allow to store json objects in the cache.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-17 09:32:50 +03:00
Amnon Heiman
853963f833 APIMBeanServer: overload the queryName implementation
The mx4j implementation of queryName does not handle correctly pattern
matching.

This patch identify that a name contains a patern and do the patern
matching as it should have been done by the mx4j MBeanServer.

Fixes #28

Message-Id: <1462447227-8367-1-git-send-email-amnon@scylladb.com>
2016-05-05 16:40:20 +03:00
Amnon Heiman
50c8ff548f Main: remove the pulling registration
With the addition of the APIMBeanServer there is no longer a need for
the pulling functionality to be perform for MBean registration.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-02 15:03:23 +03:00
Amnon Heiman
3e95c89310 RMIServerSocketFactoryImpl: regsiter the APIBuilder
This register the APIBuilder as the MBeanServerBuilder which will cause
the APIMBeanServer to be used as the MBeanServer.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-02 15:03:23 +03:00
Amnon Heiman
1daa5eb030 Adding the APIBuilder
The APIBuilder is an implementation for the MBeanServerBuilder that is
used to instantiate the APIMBeanServer as the platform MBeanServer.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-02 15:03:16 +03:00
Amnon Heiman
4e02c52aee Adding the APIMBeanServer
The APIMBeanServer is serve as a proxy for the MBeanServer.
It intercept calls to the MBeanServer and check for the column family
and stream registeration before they are perform.

Current implementation override queryNames as it's the one that is being
used by nodetool.

Additional methods can be override in the future if needed.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-02 15:02:08 +03:00
Amnon Heiman
645d04083c APIMBeanIntrospector: Creating an introspector for the MBeanserver
The MX4J introspector does not support *MXBean interfaces name, This
causes a problem with the garbage collector and java related MBeans.

To bypass that limitation the APIMBeanIntrospector inherit from
MBeanIntrospector and override the relevant functionality so MXBean
will be treated like MBean.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-05-02 15:00:57 +03:00
Amnon Heiman
a60c3156c6 ApiClient: Add getReverseMapStrValue method
Sometimes it is usefull to get a reverse of the map return by the API.
For example instread of ip address to hostid to get the hostid to ip
address.

Though it is possible to reverse a map, there is no need, it's easier to
generate the reverse mapping.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
Message-Id: <1458405434-8491-2-git-send-email-amnon@scylladb.com>
2016-03-22 09:42:57 +02:00
Pekka Enberg
c4d8d7087e APIClient: Make API server errors human readable
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>
2016-03-16 08:34:47 +02:00
Pekka Enberg
02e0598506 APIClient: Fix error handling if connection to API server fails
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>
2016-03-14 11:50:29 +02:00
Amnon Heiman
f3610f1a02 Main: use the RMIServerSocketFactoryImp jmx init
This patch init the jmx proxy from the RMIServerSocketFactoryImp init
function. This way the jmx can be set to listen on local port only.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-03-01 19:49:31 +02:00
Amnon Heiman
39a19b144d Import RMIServerSocketFactoryImp from origin
The RMIServerSocketFactoryImp is the way origin handle local port
configuration.

When used, the jmx can be set to listen on local traffic only.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2016-03-01 19:47:55 +02:00
Amnon Heiman
2ccb657fca Main: start the stream metrics pulling
This patch adds a call to main to start the stream metrics pulling.
2015-12-31 12:47:24 +02:00
Amnon Heiman
e0e7dcdb5c APIClient: Add a mapStringDouble method
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>
2015-12-30 10:50:49 +02:00
Amnon Heiman
71c4e892f6 APIClient: Fixing parsing long as int
The APIClient use getInt to return a long value wich can cause number
trancation.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-12-30 10:07:33 +02:00
Pekka Enberg
7543882d6c Clean up after unused imports
Remove unused imports that Eclipse complains about.

Signed-off-by: Pekka Enberg <penberg@scylladb.com>
2015-12-17 09:29:48 +02:00
Pekka Enberg
0f044e2f47 Rename "com.cloudius.urchin" package to "com.scylladb.jmx"
Move the Scylla JMX code under "com.scylladb.jmx" package.

Signed-off-by: Pekka Enberg <penberg@scylladb.com>
2015-12-17 09:28:17 +02:00
Amnon Heiman
21696bec1f APIClient: snapshot details should align to the API
There was a confusion in the API between key and keyspace.
It was changed in the API so the JMX should be modified accordingly.
After this change

nodetool listsnapshots
Will show the current snapshots.

On scylla-jmx:
Fixes #15

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-12-14 09:06:50 +02:00
Amnon Heiman
7f945be732 Main: call the GCInspector register method
Starts the GCInspector

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-12-07 13:00:07 +02:00
Amnon Heiman
695e23bd4e RecentEstimatedHistogram: Support empty histogram
The RecentEstimatedHistogram updates its value from the API with an
array of recent values.

This array can be empty, in that case the getBuckets method should just
return a zero size array.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-19 11:55:34 +02:00
Amnon Heiman
e0dea0c27e EstimatedHistogram: Support empty histogram
When creating an estimated histogram from buckets it is a valid option
to get a zero size array as the buckets array.

In that case the newOffsets method would get a negative value for its
size, which should result in a zero length array of offsets.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-19 11:52:17 +02:00
Amnon Heiman
5362b2045d APIClient: Support Empty histogram
An empty histogram can return a valid response from the API but without
any buckets.
This is a valid scenario and common for counters of features that are
not supported yet.
In those cases, the APIClient should return a zero length array.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-19 11:49:31 +02:00
Amnon Heiman
1cb048effe Create and register the APISettableMetrics
This patch adds the ability to create and register the
APISettableMettics.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-16 11:29:21 +02:00
Amnon Heiman
ac049129de Adding the APISettableMeter
Sometimes it is required that a meter will not handle its own data, like
the APIMeter does.

This patch break the added functionality of APIMeter into two classes,
APISettableMeter is a Meter with a set value method and APIMeter adds
the functionality that reads from the API.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-16 11:27:31 +02:00
Amnon Heiman
43e07fda0e Use the configuration object
This patch changes the APIClient to read the connection string from the
configuration object.

Main uses the same configuraion API to print it's connecting message and
call the configuration setup.

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-08 12:12:27 +02:00
Amnon Heiman
39b50f63c7 Adding a configuration object for the jmx proxy
This patch adds a configuration object to the jmx proxy that support
both the system/command line based properties and it accept a yaml
configuration file. The later options allows the jmx to read scylla
configuration file and connect to it based on this configuration.

The configuration file reader uses a yaml parser that was added to the
pom.xml

If no configuration file is found in the command line, it would look for
SCYLLA_CONF then SCYLLA_HOME then for relative 'conf' directory

Signed-off-by: Amnon Heiman <amnon@scylladb.com>

need merge apiconfig
2015-11-08 12:12:27 +02:00
Amnon Heiman
1db077618d APIClient: Add getMapStringIntegerValue and getMapStringLongValue
This patch adds two map reader function to the APIClient, one that parse
map<String,Integer> and one for map<String,Long>

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-11-03 11:18:33 +02:00
Amnon Heiman
649922fed8 Updating the http client and support API exception
The API returns errors with an HTTP code 400, 404 or 500 depending on
the cause with a json object that contains the failure reason.  The
error message should be populate to the JMX calling client, translated
to the appropriate exception.

This patch adds the ability to detect API failure and throw a runtime
exception with the returned message.

It is up to the calling method what to do with the exception, if it
would do nothing, the calling client would get a RuntimeException,
depends on origin MBean definition, the caller can catch the exception
and throw a specific kind.

Note that any exception that is thrown must be known to the JMX client
or it will not be able to process it.

As a first step, this patch replaces the jersey client to the newer
version under glassfish, which has an easy way of getting a Reply
object, and check its status before returning the results.

The only difference in the method that uses the APIClient is the use of
MultivaluedHashMap.

The following MBean implementation where changed

ColumnFamily
CompactionManager
Gossiper
EndpointSnitchInfo
CacheService
StorageProxy
StorageService

Signed-off-by: Amnon Heiman <amnon@scylladb.com>
2015-10-28 11:25:37 +02:00
Amnon Heiman
a7c30493cd APIClient to support EstimatedHistogram
This patch modify the CacheEntry to support both String and
EstimatedHistogram.

It is possible to add more supported types in the future when needed.

In the APIClient, the cache will now support both String and
EstimatedHistogram in a similiar way.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>

apiclient need to merge to cache
2015-10-21 14:20:48 +03:00
Amnon Heiman
931571c3ed EstimatedHistogram: Add constructor from data
This patch allows to create an EstimatedHistogram from an array of data
value.

It will be used by the APIClient to return EstimatedHistogram

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-10-21 14:20:04 +03:00
Amnon Heiman
a568e52cb5 Adding the RecentEstimatedHistogram
Some of the jmx methods uses the notion of recent estimated histogram.
In origin the implementation uses an estimated histogram and clean the
histogram values on each call.

The RecentEstimatedHistogram mimic this behaviour, it store the latest
values of the last call. In each call new values are stored in the
histogram and the results is the delta between the last two calls.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-10-21 14:19:57 +03:00
Amnon Heiman
c5c0fb41fe APIClient: Adding cache support to the APIClient
Some operations are not changing frequently and are called multiple time
during a nodetool execution.

This patch adds the ability to cache results for a define period of time
(typically it will be for a few seconds) so that during the same
nodetool command call, the results will be retrieved from the cache.

It is currently only implemented for string values, other commands will
be added when needed.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-10-07 10:13:05 +03:00
Amnon Heiman
38af24d49d Adding CacheEntry to be used by the APIClient cache 2015-10-07 09:43:37 +03:00
Amnon Heiman
9c7ab3fcf6 APIHistogram: Use the new histogram parameter name
The use of mean and variance as histogram parameter names makes more
sense.

This also make it safe to use an empty histogram that holds no samples.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-10-04 12:46:44 +03:00
Amnon Heiman
3e326bf2d0 APIClient: Fixing a problem with getString
The javax does not handle parsing JsonValue directly. So it is replaced
for the getString with a direct removal of the quotations.

The alternative is to replace the javax parser with a different one.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
2015-09-14 13:32:15 +03:00
Amnon Heiman
cce767e47e APIClient: getString to return parsed json value
getString should return the string value without the sarounding quotes.

For getRaw was introduce that return the API values in its raw value,
and getString was changed to use the json parser to get the string
values without the quotes.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudus-systems.com>
2015-09-11 09:25:37 +03:00
Pekka Enberg
db6d48a695 Merge "Adding notification for the repair command" from Amnon
"The API is currently not supporting notification, but the repair
 command that perform via the nodetool relays on the notification to know
 when the command terminate.

 This series adds support for the repair notification, based on a timer
 and periodically check if a current repair command was terminated."
2015-08-31 09:41:01 +03:00
Amnon Heiman
6fc2c5c720 APIClient add postInt
Sometimes a post command need to return, this adds a method to perform a
post command that returns an int value.

The general postGetVal, can be used for other types if needed.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-08-27 20:46:02 +03:00
Amnon Heiman
bde40aed53 APIClient: Add a getter for estimated histogram buckets
This method returns the estimated histogram buckets. It is based on the
module definied in utils.json in the API.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-08-24 17:13:34 +03:00
Amnon Heiman
7e7e0ca367 APIClient: Add the getMapInetAddressFloatValue implementation
This adds the implementation to the stubed getMapInetAddressFloatValue,
it gets an array of 'key', 'value' and translate it into a map of key to
float.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-08-24 13:12:16 +03:00
Amnon Heiman
62eec8aaf2 Changing the newTimer in APIMetrics to return APITimer
The newTimer methods in the APIMetrics where modified to pass the url so
an APITimer would be returned from the registry.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-07-14 18:10:53 +03:00
Amnon Heiman
9d143efb07 Adding Timer creation to APIMetricsRegistry
This adds a Timer creation methods to the APIMetricsRegistry, the
newTimer method would create an APITimer and would pass it the url for
quering.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-07-14 18:10:53 +03:00
Amnon Heiman
479a0769d1 Clean up the APIMetricsRegistry
This is a clean up in the APIMetricsRegistry. It replaces snake case to
camel case, and perform a better formatting of the code.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-07-14 18:10:53 +03:00
Amnon Heiman
2d97995229 Adding the APITimer
The Timer object in the yammer library is used to regularly check a
histogram.

The APITimer is a Timer that uses the APIHistogram instead that in it
self calls the API to get its values.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-07-14 18:10:53 +03:00
Amnon Heiman
e2cdc95b81 APIHistogram: Moving the histogram data collection to the API
This patch replace the Histogram data and statistic calculation from the
JMX proxy to the API.

This way the count, sum, min, max variance and square sum are calculated
always on the server.

When an update is perform, the API would return the statistic with a
sample of the last n elements as a sample.

This implementation insure that the counters are correct. The
implementation also allows to set the minimal update interval.

The implementation adds a mutable getter for each of the parameters so
they could be set to their new value.

Signed-off-by: Amnon Heiman <amnon@cloudius-systems.com>
2015-07-14 18:10:53 +03:00