Credit where it's due

Please read the "Dependencies" chapter below.
Probespawner uses a number of great software and it depends directly on a number of them. Links are provided for every of them. Some packages, namely jar files, are available here for convenience but you should upgrade them should you use this project.

All the probespawner's source is public domain - see LICENSE.md file

Installing probespawner

Below you'll find the instructions to install and use Probespawner in a *NIX environment.
[Click here to check instruction on how to install and use in Windows] (https://github.com/filipealmeida/probespawner/blob/master/INSTALL.windows.md)

Download java (1.7+) - https://java.com/en/download/
Install java
Download Jython - http://www.jython.org/downloads.html
Have java on your path (1.7+)
Install Jython: java -jar jython-installer-2.7.0.jar -s -d targetDirectory
Grab probespawner from github or download it from where's available - https://github.com/filipealmeida/probespawner/
Expand the tarball/zip you’ve downloaded.
Enter probespawner's directory
Have jython on your path
Run ./probespawner.sh <YOURCONFIG.json> if in linux/mac or probespawner.bat <YOURCONFIG.json> if with windows

YOURCONFIG.json example here

What’s probespawner

Probespawner is a small jython program initially designed to repeat JDBC queries periodically and write it’s output to an Elasticsearch cluster.
Now it's kind of a crossbreed of a logshipper with crontable.
It can periodically perform JDBC queries, JMX queries and operations and/or command executions, outputting it's parsed data (usually as JSON) to Elasticsearch, RabbitMQ/AMQP queues, OpenTSDB, files and/or STDOUT.
It's no substitute of a log shipper but comes in handy and packs a number of interesting examples in jython on how to achieve just that.
Tough immature and not production ready, it's kind of easy to adapt/extend and it already has been real useful for monitoring and troubleshooting systems, databases and java applications (so far).

Why probespawner

The simple answer is "just because".
Probespawner got written initally to perform some tasks that elasticsearch-river-jdbc feeder did not address and to come around the bugs and difficulties if setting up one such river/feeder (plus rivers are apparently now deprecated).
Other work extended from there to help troubleshooting, monitoring and performance statistics on the OS and applications.
See the examples folder for some practical uses.
An effort do document some of the things done using probespawner will be made but some are:

Collect AWR from OracleDB, DMV data from Microsoft SQL Server and performance schema data from MySQL's.
Index data on Elasticsearch. Insight through kibana.
SQLServer DMVs example here.
Collect netstat information periodically, send through RabbitMQ to Elasticsearch. D3JS to perform force directed graphs from the information with brush date/time interval selector. This animates the graph of the network conversations as you slide throught a time interval.
Example here.
Collect top information, ship through pipeline to Elasticsearch. Kibana dashboard allows for quick browse trough the processes history, correlate with machine resources, document blocking conditions and wait events.
Example here.
Collect stack traces periodically from application servers while monitoring resources of a JVM using JMXProbe. Data shipped through pipeline (RabbitMQ) made available for performance engineers, application testers, master troubleshooters and developers for the many reasons you might imagine.
Example here.
Collect vmstat info, write metrics to OpenTSDB via socket

How does probespawner work

Probespawner reads a JSON configuration file stating a list of inputs and the outputs, much like logstash. The inputs provided are either JMX (probing a JVM), JDBC (querying a database) or execution of programs in different platforms.
Each is called a probe.
The data acquired cyclically from these input sources are sent to Elasticsearch, RabbitMQ, OpenTSDB, stdout or file.

Basically, for each input you have defined, probespawner will launch a (java) thread as illustrated in the concurrency manual of jython.
Each thread is an instance of a probe that performs:

Periodical acquisition of records from a database, writes these to an Elasticsearch cluster (using Elasticsearch’s JAVA api).
Periodical acquisition of JMX attributes from a JVM instance, outputs to an index of your choice on your Elasticsearch cluster and to a file on your filesystem.
Periodical top command parse, sends data to a RabbitMQ queue
Send metrics data from command execution to OpenTSDB
Periodically executes any task you designed for your own probe and do whatever you want with the results, for instance, write them to STDOUT.

Dependencies

Jython 2.5.3+ - http://www.jython.org/downloads.html
Jyson 1.0.2+ - http://opensource.xhaus.com/projects/jyson
JodaTime 2.7+ - https://github.com/JodaOrg/joda-time

Optional but real useful

Tomcat’s 7.0.9+ (connection pool classes) - http://tomcat.apache.org/download-70.cgi
Elasticsearch 1.5.0+ - https://www.elastic.co/downloads
RabbitMQ 3.5.3+ - https://www.rabbitmq.com

JDBC drivers you need for your queries, some common ones for your reference:

About the use of Tomcat’s connection pool, zxJDBC could’ve been used to attain the same objective. Since some code was around using it, so it stood.

CLASSPATH nightmares?

Minimum set of jars needed to run probespawner

CLASSPATH=jyson-1.0.2.jar:joda-time-2.7.jar

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module

CLASSPATH=jyson-1.0.2.jar:joda-time-2.7.jar:tomcat-jdbc.jar:tomcat-juli.jar

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module with mysql as a source

CLASSPATH=jyson-1.0.2.jar:joda-time-2.7.jar:tomcat-jdbc.jar:tomcat-juli.jar:mysql-connector-java-5.1.20-bin.jar

JSON input configuration:

...
"probemodule": { "module": "cooldbprobe", "name" : "DatabaseProbe" },
"url": "jdbc:mysql://localhost:3306/mysql",
"driverClassName": "com.mysql.jdbc.Driver",
"username": "root",
"password": "password",
...

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module with OracleDB as a source

CLASSPATH=jyson-1.0.2.jar:joda-time-2.7.jar:tomcat-jdbc.jar:tomcat-juli.jar:ojdbc6.jar

JSON input configuration:

...
"probemodule": { "module": "cooldbprobe", "name" : "DatabaseProbe" },
"url": "jdbc:mysql://localhost:3306/mysql",
"driverClassName": "com.mysql.jdbc.Driver",
"username": "root",
"password": "password",
...

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module with Microsoft SQLServer (mssql) as a source

CLASSPATH=jyson-1.0.2.jar:joda-time-2.7.jar:tomcat-jdbc.jar:tomcat-juli.jar:sqljdbc4.jar

Sample set of jars to work with elasticsarch 5.x (proof:5.2.0)

CLASSPATH=compress-lzf-1.0.2.jar:elasticsearch-2.1.1.jar:guava-18.0.jar:hppc-0.7.1.jar:jackson-core-2.6.2.jar:jboss-client.jar:joda-time-2.7.jar:jsr166e-1.1.0.jar:jyson-1.0.2.jar:lucene-core-5.3.1.jar:mysql-connector-java-5.1.20-bin.jar:netty-3.10.5.Final.jar:ojdbc6.jar:rabbitmq-client.jar:sqljdbc4.jar:t-digest-3.0.jar:tomcat-jdbc.jar:tomcat-juli.jar:wlclient.jar:wljmxclient.jar

JSON input configuration:

...
"probemodule": { "module": "cooldbprobe", "name" : "DatabaseProbe" },
"url": "jdbc:sqlserver://suchhost:1433;databaseName=Master",
"driverClassName": "com.microsoft.sqlserver.jdbc.SQLServerDriver",
"username": "suchuser",
"password": "suchpassword",
...

Minimum set of jars needed to run probespawner for JMX using jmxprobe and JBoss EAP61

CLASSPATH=jyson-1.0.2.jar:joda-time-2.7.jar:tomcat-jdbc.jar:tomcat-juli.jar:jboss-client.jar

JSON input configuration:

...
"url":"service:jmx:remoting-jmx://localhost:8000",
"username": "admin",
"password": "password",
"alias": "hostname.project",
"queries" : [
 {
  "object_name" : "java.lang:type=Memory",
  "attributes" : [ "NonHeapMemoryUsage", "HeapMemoryUsage" ]
 }, {
  "object_name" : "com.conceptwave.AVM:type=CWAVM"
 }, {
  "object_name" : "com.conceptwave.AVM:type=PEQueues,name=Participants Queue"
 }, {
  "object_name" : "java.lang:type=GarbageCollector,name=*",
  "attributes" : [ "CollectionCount", "CollectionTime" ]
 }
],
"description": "Obtains JMX metrics from JVM instance, stores on elasticsearch",
"probemodule": { "module": "jmxprobe", "name" : "JMXProbe" },
...

Classpath needed for output module "jelh2" using elasticsearch 2.1.1

CLASSPATH=/foo/bar/opt/elasticsearch-2.1.1/lib/elasticsearch-2.1.1.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/lucene-core-5.3.1.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/guava-18.0.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/jsr166e-1.1.0.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/hppc-0.7.1.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/jackson-core-2.6.2.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/compress-lzf-1.0.2.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/t-digest-3.0.jar:/foo/bar/opt/elasticsearch-2.1.1/lib/netty-3.10.5.Final.jar

JSON output configuration:

"class": "elasticsearch",
"outputmodule": { "module": "jelh2", "name" : "Elasticsearch" },

Probespawner package contents

The package contains the following files:

dummyprobe.py - Do not be mistaken judging by the name that this is a dummy probe. It’s been a poor choice of name but this is immature code so it’s staying like that. This is the class from which the other inherit and it’s the real skeleton for probes.
cooldbprobe.py - Same as databaseprobe.py but uses JodaTime for time parameters, timestamp is in milliseconds, datetime strings are ISO8601 format looking like “2015-11-21T15:14:15.912+05:00”.
jelh.py - Jython’s Elasticsearch Little Helper, the module responsible for the bulk requests to elasticsearch.
jmxprobe.py - This probe executes JMX requests in a JVM and reports it’s results to the outputs configured in the JSON setup. NOTE: It discards bad objects/attributes in case of failure but keeps working if it happens. Adjust to your needs (find out the try/except in the “tick” method)
probespawner.ini - Logging configuration.
probespawner.py - It’s the croupier, it reads and delivers the configuration for the probes. Lastly, it instantiates all of them and wait’s for them to finish. It’s a simple threadpool but it would be great if it dealt with interrupts and failures from it’s workers.
probespawner.sh - Launches probespawner with it’s argument as configuration.
probespawner.bat - Launches probespawner with it’s argument as configuration in case you’re using Microsoft Windows.
testprobe.py - The real dummy probe, it merely states that is a test and sends a sample dictionary to the outputs configured.
example.json - Sample JSON configuration for a JDBC, a JMX input, any input. Click here for contents
zxdatabaseprobe.py - Same as databaseprobe.py but dispensing the use of Tomcat’s connection pool (uses zxJDBC)
databaseprobe.py - Amazingly, this does not depend from “dummyprobe.py”, it was the initial code of a more monolitic probe that existed in the past. This probe executes any given query in a database and reports it’s results (if any) to the outputs configured in the JSON setup. It's here for legacy reasons, you should ignore this probe.
execprobe.py - Executes “command” every cycle and reports it’s output
linuxtopprobe.py - Executes top command on linux boxes every cycle, parses and reports it’s output in an elasticsearch friendly fashion
netstats.py - Executes “netstat -s” command on linux boxes every cycle, parses and reports it’s output in an elasticsearch friendly fashion.
netstatntc.py - Executes “netstat -ntce” command on linux boxes every cycle, parses and reports it’s output in an elasticsearch friendly fashion.
rmqlh.py - Jython’s RabbitMQ Little Helper, the module responsible for pushing to RabbitMQ queues.
opentsdblh.py - Jython’s OpenTSDB (time-series database) Little Helper, the module responsible for pushing to such backend.
jelh2.py - Jython’s Elasticsearch 2.0 Little Helper, the module responsible for the bulk requests to elasticsearch versions 2+.

Configuring

Instead of reading this section you can refer to the file example.json file in the repo/zip. There you'll find examples of most configurations.

Where omitted a description of a field it means it has no action.
The list of possible fields for inputs and outputs is shown below:

Inputs (the probes)

Common fields for inputs

Field	Description
description	Small description of your input, it'll be used to name it's JAVA thread
probemodule	Dictionary with “module” and “name” keys specifying the module and name to import as the probe for one input
module	The jython module that contains the probe, e.g.: databaseprobe
name	The name to import that will be used by probespawner to instantiate the thread, e.g.: DatabaseProbe
output	List of outputs to write the acquired data, e.g.: [“elasticsearchJMXoutput”]. See “outputs” below
interval	Interval in seconds to wait for the next iteration. The time spent in the execution of a cycle is subtracted to this value in every iteration
maxCycles	How many cycles before exiting the thread
storeCycleState	Stores parameters and information about cycles, like number of cycles, start and end times, etc. e.g.: "storeCycleState": { "enabled": true, "filename": "sincedb.json"}
transform	Transformation of message to a string e.g.: “jmx.$data.attribute $cycle.laststart $data.number host=suchhost $config.maxCycles“
messageTemplate	A dictionary to append to be sent/added in the output message, can use $cycle, $config and $data variables

JDBC input specific parameters

There are two possible modules, “cooldbprobe”, “databaseprobe” and “zxdatabaseprobe”
First two use Tomcat’s JDBC connection pool.

Field	Description
url	Connection URL, e.g.: jdbc:mysql://mysqlhost:3306/INFORMATION_SCHEMA
driverClassName	The driver classname, must be in the CLASSPATH, e.g.: com.mysql.jdbc.Driver
username	Username to connect to the database
password	Password to connect to the database
dbProperties	Property dictionary with JDBC driver specific properties. Overrides the database properties passed into the Driver.connect(String, Properties) method (see setDbProperties method from Tomcat’s connection pool)
minIdle	See Tomcat’s connection pool documentation (number of minimum idle connections)
maxIdle	See Tomcat’s connection pool documentation
maxAge	See Tomcat’s connection pool documentation
validationQuery	See Tomcat’s connection pool documentation (validation query, everytime a handle is obtained from the pool)
initSQL	See Tomcat’s connection pool documentation (initial SQL when creating a connection)
sql	List of query objects
.. statement	The statement itself
.. parameter	Parameters for the query, see “Statement parameters” table below
.. id	Id for your query, useful for debugging
.. parameter	Initial setup of the parameters, see “Statement parameters” table below

Statement parameters

Parameters you can use for your prepared statements (? in the statement definition, see example.json).

Field	Description
start	Unix timestamp in your script environment timezone at your cycle start (see python’s time.time() function), e.g.: 1427976119.921
laststart	Unix timestamp of your previous cycle start
end	Unix timestamp of the end of last cycle
numCycles	Number of cycles started
qstart	Unix timestamp of a given query start
qlaststart	Unix timestamp of a the last time a given query started
qend	Unix timestamp of a the last time a given query ended
startdt	Same as start but a ISO8601 datetime, e.g.: “2015-04-02 12:00:00.000000”. Every parameter with suffix dt is a date in such format
laststartdt	Same as laststart in ISO8601
enddt	Same as end in ISO8601
qstartdt	Same as qstart in ISO8601
qlaststartdt	Same as qlaststart in ISO8601
qenddt	Same as qend in ISO8601

“cooldbprobe” input extra parameters for queries

cooldbprobe packs a few extras and has some differences from the above:

Field	Description
start	Unix timestamp in milliseconds in your script environment timezone at your cycle start (see python’s time.time() function), e.g.: 1427976119921, the getTimeMillis() from JodaTime
laststart	Unix timestamp in milliseconds of your previous cycle start
end	Unix timestamp in milliseconds of the end of last cycle
numCycles	Number of cycles started
ignoreFieldIfEmptyString	If set to true, removes empty string values from obtained rows
qstart	Unix timestamp in milliseconds of a given query start
qlaststart	Unix timestamp in milliseconds of a the last time a given query started
qend	Unix timestamp in milliseconds of a the last time a given query ended
startdt	Same as start but a ISO8601 datetime, e.g.: “2014-11-22T12:13:03.991+05:00”. Every parameter with suffix “dt” is a date in such format
laststartdt	Same as laststart in ISO8601, e.g.: “2014-11-22T12:13:03.991+05:00”
enddt	Same as end in ISO8601, e.g.: “2014-11-22T12:13:03.991+05:00”
qstartdt	Same as qstart in ISO8601, e.g.: “2014-11-22T12:13:03.991+05:00”
qlaststartdt	Same as qlaststart in ISO8601, e.g.: “2014-11-22T12:13:03.991+05:00”
qenddt	Same as qend in ISO8601, e.g.: “2014-11-22T12:13:03.991+05:00”
qelapsed	Elapsed time in milliseconds from start of execution until resultset traversal and insert in the outputs
anyother	If you specify in your input queries any other field you can get it as a parameter on your query, e.g.: { “statement“: “select ?“, “parameter“: [“$cycle.myparameter“], “myparameter“: “testparameter“ }

JMX input specific parameters

Field	Description
host	JMX host
port	JMX port
username	Username for JMX connection
password	Password for JMX connection
attributes	List of metrics to obtain from JXM, e.g.: ["java.lang:type=Memory/HeapMemoryUsage", "java.lang:type=Runtime/Uptime"]
operations	List of operations to execute via JMX, e.g: [{ "name": "java.lang:type=Threading/dumpAllThreads", "params": [ true, true ], "signatures": [ "boolean", "boolean" ] }, { "name": "java.lang:type=Threading/findDeadlockedThreads" } ]
arrayElementsToRecord	Set this to true to expand an array if such is returned to your request
"queries"	array of queries in logstash fashion, see logstash configuration example
"alias"	prefix for metric names
"compositeDataToManyRecords"	true or false, splits return object in many; for otsdb output preferred value is true

ExecProbe specific

Field	Description
command	Set this to the command you want to execute every cycle
regexp	Named groups regex, python style, to parse and name your fields
metrics	List of group names which are metrics. A document/JSON entry per metric will be generated. Every metric value will be converted to a float.
terms	Same as metrics but values won't be converted to floats
decimalMark	Decimal mark separator for number parsing

Top specific

Field	Description
command	Set this to change the “top -Hbi -n20 -d5 -w512” command that gets executed every cycle.

NetstatS specific

Field	Description
command	Set this to change the “netstat -s” command that gets executed every cycle.

NetstatNTC specific

Field	Description
command	Set this to change the “netstat -ntc” command that gets executed every cycle.

Outputs

Common fields

Field	Description
class	The class of your output, one of “elasticsearch”, “rabbitmq”, “file” or “stdout”
outputmodule	Alike the input, your module and name to import e.g.: `{ "module": "jelh", "name" : "Elasticsearch" }` or `{ "module": "rmqlh", "name" : "RabbitMQ" }`
codec	Transformations to the data, e.g.: `json_lines` (see rabbitMQ example)
messageTemplate	A dictionary to append to be sent/added in the output message, can use $cycle, $config and $data variables

Elasticsearch 1.x, 2.x (jelh.py or jelh2.py)

Field	Description
cluster	A string with the clustername, defaults to “elasticsearch”
outputmodule	`{ "module": "jelh", "name" : "Elasticsearch" }`
hosts	List of hosts:ports, e.g.: [“10.0.0.1:9300”, “10.0.0.2:9300”] If host and port are also specified, it’ll be added to this list
host	Hostname/IP of node (defaults to “localhost”)
port	Port for transport, defaults to 9300
options	Any options you want to add to the elasticsearch client configuration, e.g.: { "cluster.name": "fuckup", "client.transport.ping_timeout": "5s", "client.transport.nodes_sampler_interval": "5s", "client.transport.ignore_cluster_name": false, “client.transport.sniff": true, } Overrides cluster name (“cluster”)
indexPrefix	Index name prefix, defaults to “sampleindex”
indexSuffix	Defaults to “-%Y.%m.%d” but can be a JDBC fieldname. If the fieldname parses as a ISO8601 date string it’ll use it’s info and suffix with “%Y.%m.%d”
type	Document type, e.g.: “jdbc”
indexSettings	Elasticsearch JSON for index settings
typeMapping	Elasticsearch type mapping, e.g.: "jdbc": { "properties" : { "@timestamp" : { "type" : "date" } } }
index_settings	Overrides indexSettings
time_mapping	Overrides typeMapping
bulkActions	Number of documents to keep before flushing data
bulkSize	ignored for the time being
flushInterval	ignored for the time being
concurrentRequests	ignored for the time being
actionRetryTimeout	Number of seconds to sleep before re-executing the elasticsearch action in progress
concurrentRequests	ignored for the time being

RabbitMQ (rmqlh.py)

Field	Description
outputmodule	`{ "module": "rmqlh", "name" : "RabbitMQ" }`
queue_name	queue to write to
addresses	list of addresses (for failover) e.g.: `["suchhost:5672", "suchhost:5672"]`
host	your RabbitMQ host
port	your AMQP port
virtualhost	your known virtualhost
username	your username
password	your password
uri	all of the above, overrides all, e.g.: `amqp://myuser:mypassword@suchhost:5672/vhost`
networkRecoveryInterval	Sets connection recovery interval. Default is 5000.
automaticRecoveryEnabled	if true, enables connection recovery
topologyRecoveryEnabled	Enables or disables topology recovery
routingKey	routing key for your data
exchange	an exchange name if any
declareQueue	if false, binds else, creates; true or false (defaults to false)
passive	true or false (defaults to false)
durable	true or false (defaults to false)
exclusive	true or false (defaults to false)

OpenTSDB (opentsdblh.py)

Field	Description
outputmodule	`{ "module": "opentsdblh", "name" : "OpenTSDB" }`
queue_name	queue to write to
addresses	list of addresses (for failover) e.g.: `["suchhost:5672", "suchhost:5672"]`
host	your OpenTSDB host
port	your OpenTSDB port
metricPrefix	prefix to add to your OTSDB metrics, defaults to "probespawner"
metric_field	field with your metric name
value_field	field with the value for your metric
metrics	list of fields that are metrics to be stored
blacklist	list of blacklisted tags (keys to remove from metric push)
tags	array of extra tags for metrics e.g.: [ "sometag=somevalue", "othertag=othervalue" ]

STDOUT

Field	Description
codec	“json_lines”, no other available.

File

Field	Description
codec	“json_lines”, no other available.
filename	The filename to write the information to in the format established by the codec.

Putting it all together

Now you need to assemble a JSON file indicating which inputs are to be spawned, what probes are to be launched. Hence the “input” field.
This field indicates probespawner which inputs are to be processed by the probe threads.

Field	Description
input	List of inputs to be launched by probespawner, e.g.: [“JMXInput”, “JDBCInput”]

Refer to the file example.json.
There you will find an example with many combinations of the above options.
That should suffice for most everything you have in mind for recipes with probespawner.

Running probespawner

Export the classpath:

Below a sample classpath for using probespawner and a few JDBC drivers: export CLASSPATH=/home/suchuser/opt/apache-tomcat-7.0.59/lib/tomcat-jdbc.jar:/home/suchuser/opt/apache-tomcat-7.0.59/bin/tomcat-juli.jar:/home/suchuser/var/lib/java/jyson-1.0.2/lib/jyson-1.0.2.jar:/home/suchuser/var/lib/java/mysql-connector-java-5.1.20-bin.jar:/home/suchuser/var/lib/java/sqljdbc_4.0/enu/sqljdbc4.jar:/home/suchuser/var/lib/java/sqljdbc_4.0/enu/sqljdbc.jar:/home/suchuser/opt/rabbitmq-java-client-bin-3.5.3/rabbitmq-client.jar

Run the jython code:

jython probespawner.py --configuration=example.json

Shell script launcher

This one calls “find” in the CWD and adds all *jar files to the classpath before calling jython.
probespawner.sh example.json

Batch file launcher

The batch file lists all jars in the “jars” directory and adds them to the classpath before calling jython.
probespawner.bat example.json

Developing other probes

Just in case you want to develop a probe for your convenience, be warned: this is immature code with no support. Having said that, take a look at the “testprobe.py” file.

Produce your data: override the “tick” method

This is the minimum probe, the only thing it does is writing the { ‘test’: ‘yes’ } dictionary to the configured outputs in your JSON file. For that to be accomplished, your class must override the “tick” method which is called at every cycle, meaning every “interval” seconds you defined in your input.

Get your configuration and initialize your probe: override the “initialize” method

The method “initialize” is another popular overridden one, called before the probe starts cycling. It’s usually in this method you get the configuration keys from the JSON file, set up and initialize your probe.

Getting a property:

username = self.getInputProperty("username")
This grabs the “username” content of your defined input in the JSON file and returns it’s value (or None).

Name		Name	Last commit message	Last commit date
Latest commit History 122 Commits
docs		docs
examples		examples
jars		jars
tools/jmx		tools/jmx
.gitignore		.gitignore
INSTALL.windows.md		INSTALL.windows.md
LICENSE		LICENSE
README.md		README.md
cooldbprobe.py		cooldbprobe.py
dummyprobe.py		dummyprobe.py
example.json		example.json
execprobe.py		execprobe.py
jelh.py		jelh.py
jelh2.py		jelh2.py
jelh5.py		jelh5.py
jmxprobe.py		jmxprobe.py
linuxtopprobe.py		linuxtopprobe.py
netstatntc.py		netstatntc.py
netstats.py		netstats.py
opentsdblh.py		opentsdblh.py
probespawner.bat		probespawner.bat
probespawner.ini		probespawner.ini
probespawner.py		probespawner.py
probespawner.sh		probespawner.sh
rmqlh.py		rmqlh.py
testprobe.py		testprobe.py
zxdatabaseprobe.py		zxdatabaseprobe.py

License

eggoynes/probespawner

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Credit where it's due

Installing probespawner

What’s probespawner

Why probespawner

How does probespawner work

Dependencies

Optional but real useful

JDBC drivers you need for your queries, some common ones for your reference:

CLASSPATH nightmares?

Minimum set of jars needed to run probespawner

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module with mysql as a source

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module with OracleDB as a source

Minimum set of jars needed to run probespawner for jdbc using "cooldbprobe" module with Microsoft SQLServer (mssql) as a source

Sample set of jars to work with elasticsarch 5.x (proof:5.2.0)

Minimum set of jars needed to run probespawner for JMX using jmxprobe and JBoss EAP61

Classpath needed for output module "jelh2" using elasticsearch 2.1.1

Probespawner package contents

Configuring

Inputs (the probes)

Common fields for inputs

JDBC input specific parameters

Statement parameters

“cooldbprobe” input extra parameters for queries

JMX input specific parameters

ExecProbe specific

Top specific

NetstatS specific

NetstatNTC specific

Outputs

Common fields

Elasticsearch 1.x, 2.x (jelh.py or jelh2.py)

RabbitMQ (rmqlh.py)

OpenTSDB (opentsdblh.py)

STDOUT

File

Putting it all together

Running probespawner

Export the classpath:

Run the jython code:

Shell script launcher

Batch file launcher

Developing other probes

Produce your data: override the “tick” method

Get your configuration and initialize your probe: override the “initialize” method

Getting a property:

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