rrd4j | high performance data logging and graphing system | Time Series Database library

by rrd4j Java Version: 3.9 License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | rrd4j Summary

rrd4j is a Java library typically used in Database, Time Series Database applications. rrd4j has no bugs, it has no vulnerabilities, it has build file available and it has high support. However rrd4j has a Non-SPDX License. You can download it from GitHub, Maven.

Portable files, RRDTool files are not. Supports the same data source types as RRDTool (COUNTER, ABSOLUTE, DERIVE, GAUGE). Supports the same consolidation functions as RRDTool (AVERAGE, MIN, MAX, LAST) and adds TOTAL, FIRST. Supports almost all RRDTool RPN functions (wiki/see [RPNFuncs] RPNFuncs)). Multiple backends, e.g. use MongoDB as data store.

Support

Quality

Security

License

Reuse

Support

rrd4j has a highly active ecosystem.

It has 239 star(s) with 67 fork(s). There are 32 watchers for this library.

There were 1 major release(s) in the last 12 months.

There are 20 open issues and 93 have been closed. On average issues are closed in 278 days. There are 4 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of rrd4j is 3.9

Quality

rrd4j has 0 bugs and 0 code smells.

Security

rrd4j has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

rrd4j code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

rrd4j has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

rrd4j releases are not available. You will need to build from source code and install.

Deployable package is available in Maven.

Build file is available. You can build the component from source.

Installation instructions are not available. Examples and code snippets are available.

rrd4j saves you 11785 person hours of effort in developing the same functionality from scratch.

It has 23846 lines of code, 2123 functions and 224 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

kandi has reviewed rrd4j and discovered the below as its top functions. This is intended to give you an instant insight into rrd4j implemented functionality, and help decide if they suit your requirements.

Entry point for example
Export the current request to an output stream
Append the XML to the XML document
Append the XML to the XML
Entry point for the RRD file
Returns a string representation of this image
Returns a string representation of this dataset
Checks if this RrdDef is equal to this RrdDef
Find the first archive match in an archive
Sets the heartbeats
Parses the Rrd_graph_def
Overrides the default implementation of the super class
Initialize the data layout
Fills the graph combo combo
Attempts to lock a file
Builds a generic URI from an RrdPath
Returns a string representation of the data
Downgrades the data set to a data set
Downsample the data set
Generate the pivot values
Starts the demo
Construct the UI
Parses an RrdDef definition
Starts rrd database
Creates the graph
Return an XML representation of this database

Get all kandi verified functions for this library.

rrd4j Key Features

No Key Features are available at this moment for rrd4j.

rrd4j Examples and Code Snippets

No Code Snippets are available at this moment for rrd4j.

Community Discussions

Trending Discussions on rrd4j

Getting java.lang.NoClassDefFoundError: Could not initialize class org.apache.poi.ooxml.util.DocumentHelper after upgrading to POI 4.0.0

Rrd4j not able to receive samples from MongoDB

QUESTION

Getting java.lang.NoClassDefFoundError: Could not initialize class org.apache.poi.ooxml.util.DocumentHelper after upgrading to POI 4.0.0

Asked 2019-Apr-26 at 02:48

15 to poi 4.0.0. Here are the poi dependencies I have on classpath.

poi-4.0.0 poi-scratchpad-4.0.0 poi-ooxml-4.0.0 poi-ooxml-schemas-4.0.0 xmlbeans-3.0.1

Getting below exception when I try to close workbook

...

ANSWER

Answered 2018-Oct-09 at 17:25

I am having the same issue. I noticed something in the change log that seems to indicate a breaking change in regards to the write() method and automatically closing the OutputStream. I am wondering if that is the issue.

https://poi.apache.org/changes.html#4.0.0

Source https://stackoverflow.com/questions/52658175

QUESTION

Rrd4j not able to receive samples from MongoDB

Asked 2017-Mar-13 at 11:40

I have integrated rrd4j (3.1) with mongodb (3.2). But the sample data doesn't seem to be persistent after closing RrdDb and then re initializing the object. I see the binary data getting updated in mongo db when the rrdDb.close() is called. And on open the data is being queried from mongodb and the binary data is getting updated to byte buffer. But on dumping the data after the reconnect, all the sample data is is replace by NaN. Could someone please help me on this.?

Adding the code for RrdDb intialising, Mongo Ractory creation and the dump outputs before close and after reconnect.

RrdDb intialization

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ANSWER

Answered 2017-Mar-13 at 11:40

Got the solution for this from another group. Thought of posting this here too.

So basically for each run you need to open the rrdDb connection at the satrt and close it at the end of the run.

When creating RrdDb object for the very first time, you need to define the RrdDef and the back-end factory.(code snippet for the same posted earlier). At the end of the run when the data is collected, you need to close the RrdDb connection (rrdDb.close()). Only then the data will be written to the backend (in this case mongo db). On the next open rather than defining the rrdDef just pass the rrdPath as an attribute to rrdDb object, syntax for the same is mentioned below, using which mongo make a query and retrieves the corresponding information.

Source https://stackoverflow.com/questions/42576700

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install rrd4j

You can download it from GitHub, Maven.
You can use rrd4j like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the rrd4j component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .