titan.core | This repository has moved to https | Authorization library

by eclipse C++ Version: 7.2.2 License: EPL-2.0

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kandi X-RAY | titan.core Summary

titan.core is a C++ library typically used in Security, Authorization applications. titan.core has no bugs, it has no vulnerabilities, it has a Weak Copyleft License and it has low support. You can download it from GitHub.

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titan.core has a low active ecosystem.

It has 71 star(s) with 72 fork(s). There are 30 watchers for this library.

It had no major release in the last 12 months.

There are 0 open issues and 9 have been closed. On average issues are closed in 7 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of titan.core is 7.2.2

Quality

titan.core has no bugs reported.

Security

titan.core has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

titan.core is licensed under the EPL-2.0 License. This license is Weak Copyleft.

Weak Copyleft licenses have some restrictions, but you can use them in commercial projects.

Reuse

titan.core releases are available to install and integrate.

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

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titan.core Key Features

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titan.core Examples and Code Snippets

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Community Discussions

Trending Discussions on titan.core

Why can't I connect to Gremlin-Server?

Titan unable to connect to Cassandra

Titan + DynamoDB Local incredibly slow (8s commit for 30 vertices)

Can't instanciate DynamoDBStoreManager (because of incorrect Apache HTTP Client version?)

Which indexes do I need for following query to avoid a full-graph scan?

ClassNotFoundException when trying to bulk load into titan using a Java MapReduce job

Why is Titan throwing java.lang.IllegalArgumentException?

QUESTION

Why can't I connect to Gremlin-Server?

Asked 2019-Sep-20 at 09:22

Abstract

I'm trying to set up a Titan/Cassandra/Gremlin-Server stack in Docker (v1.13.0). The problem I'm facing is that applications trying to connect to Gremlin-Server on the default port 8182 are reporting errors (details below).

First, here is some relevant version information:

Cassandra v2.2.8
Titan v1.0.0 (Hadoop 1)
Gremlin 3.2.3

Setup

Setup takes place in a Dockerfile in order to be reproducible. It assumes that a Cassandra container already exists, running a cassandra.yaml in which start_rpc has been set to true.

The Dockerfile is as follows:

...

ANSWER

Answered 2017-Sep-28 at 03:54

The main problem is that the host in your Gremlin Server configuration is set to the default which is localhost. This will only allow connections from the server itself. You need to change the value to an external IP of the server or 0.0.0.0.

The other issue is that gremlin-python server plugin was made available with Apache TinkerPop 3.2.2. Titan 1.0.0 uses TinkerPop 3.0.1. I dobut that the gremlin-python 3.2.3 plugin will work with Titan 1.0.0.

Update: Consider using JanusGraph 0.1.1 which uses TinkerPop 3.2.3. JanusGraph was forked from Titan, so the code is basically the same with updated dependencies.

Source https://stackoverflow.com/questions/41783800

QUESTION

Titan unable to connect to Cassandra

Asked 2017-Jul-17 at 05:14

I'm trying to code to connect Tital to this Cassandra with this code:

...

ANSWER

Answered 2017-Jul-17 at 05:14

Enable Thrift server of Cassandra

Use the below command to enable thrift

Source https://stackoverflow.com/questions/45136173

QUESTION

Titan + DynamoDB Local incredibly slow (8s commit for 30 vertices)

Asked 2017-May-08 at 08:42

I'm developing an application using Titan + DynamoDB Local as storage backend. Previously I used Berkeley as storage backend, which had great performance. Ever since switching though, I can't even use the application because everything takes ages.

A simple test case adds 30 vertices and commits the changes; This is what I get:

...

ANSWER

Answered 2017-May-08 at 08:42

I created an issue on GitHub to track reproduction of your perceived latency. I measure only 84 ms commit time on the command line when I run your code, and even if I include all of the setup and static Java initialization code, end-to-end the test takes only 5 seconds. Please try out the master branch.

Source https://stackoverflow.com/questions/42899388

QUESTION

Can't instanciate DynamoDBStoreManager (because of incorrect Apache HTTP Client version?)

Asked 2017-Mar-19 at 19:25

When I try to create a TinkerPop Graph instance that connects to a (local) DynamoDB server, I'm getting this exception:

...

ANSWER

Answered 2017-Mar-19 at 19:25

Trust Occam's razor: The simplest answer is likely the correct one. I had manually linked a .jar file that was including an older version of the Apache HTTP Client. It works now that I got rid of it.

Source https://stackoverflow.com/questions/42890610

QUESTION

Which indexes do I need for following query to avoid a full-graph scan?

Asked 2017-Mar-14 at 10:30

The following query should return at most limit vertices with the label REPOSITORY, that were last updated before minLastUpdated and are not of type FILE_UPLOAD, unless the NEEDS_UPDATE flag is set.

...

ANSWER

Answered 2017-Mar-14 at 10:30

Only PropertyKey.INDEXED_LABEL.name() and PropertyKey.LAST_UPDATED.name() are relevant, other properties can't be used for the index lookup. That said, it would make sense to create a search index as a) you have multiple properties and b) one of them has a range condition: P.lt(minLastUpdated) (no other index can answer range queries and having multiple multiple properties covered by a composite index is known to cause trouble sooner or later). Create a single index that covers both properties to get the best performance.

Source https://stackoverflow.com/questions/42761659

QUESTION

ClassNotFoundException when trying to bulk load into titan using a Java MapReduce job

Asked 2017-Jan-31 at 15:51

We're currently trying to bulk load some files from HDFS into titan using a map reduce job and the titan dependencies. However, we're running into an issue once the map jobs start where it can't find a tinkerpop class. This is the error:

...

ANSWER

Answered 2017-Jan-31 at 05:02

Upgrade your gremlin jars in pom.xml

Source https://stackoverflow.com/questions/41949352

QUESTION

Why is Titan throwing java.lang.IllegalArgumentException?

Asked 2017-Jan-08 at 22:48

Steps to reproduce Setting up the environment using Docker v1.12.5:

In the host machine's shell:

...

ANSWER