Is there a way to setup overpass API over a remote PostgreSQL + Postgis setup ? like the ones we can setup using osmosis+osm2psql setup ?
Currently I have setup overpass-api over DB directory using --db-dir option. But I want to use remote PostgreSQL DB, so that I can scale up overpass-api
Overpass API uses a custom file based format. You cannot use Postgresql as a backend.
Related
I am having one requirement for SQL-like interface to query S3 object storage(It's not actually AWS S3, but S3 based protocol storage. We are having server name, bucket name, access_key and secret_access_key available with us).
I need to know whether there exists any PostgreSQL extension which can leverage foreign data wrapper(FDW) feature to run query against S3 data.
Here, we don't want to copy the data(csv files) from S3 to postgreSQL server. We have external PostgreSQL server, using any extension, we directly want to query that S3 data using that PostgreSQL engine and get the result on PostgreSQL server.
A very similar requirement link was found as below:
https://www.cdata.com/kb/tech/amazons3-jdbc-postgresql-fdw.rst
But it is using it's own cdata JDBC driver. We don't want anything proprietary.
Is there anything opensource available? If yes, how can we achieve that?
We are using 12.2 PostgreSQL version.
My question is different ways to connect mongodb with grafana
Link for reference ?
Try using MongoDB datasource for Grafana
It should allow you to hook up your MongoDB data source just fine...
Source
Right now grafana doesn't support MongoDB as a data source Using mongoDB as back-end repository
But they offer a workaround grafana simple json data source
There's also a new MongoDB data source plugin for paid Grafana:
https://grafana.com/grafana/plugins/grafana-mongodb-datasource
I have a need to dynamically create databases in code via the OrientJS driver. I see an example of how to create an encrypted DB using the Java API but nothing in the JS api/OrientJS.
Sorry, this is not available through remote OrientDB binary protocol, so you cannot do that via JS but also Java API and Console if you use remote protocol.
I'm using Titan 0.3.2 in embedded mode with Cassandra and Elasticsearch. I am using the configuration documented in the titan docs for my cassandra-es.properties (fed into titan.sh/titan.bat):
storage.backend=embeddedcassandra
storage.cassandra-config-dir=config/cassandra.yaml
storage.index.search.backend=elasticsearch
storage.index.search.directory=/tmp/searchindex
storage.index.search.client-only=false
storage.index.search.local-mode=true
But I'm trying to get the right configuration for bin/cassandra-es.local to connect to the Titan server via the Gremlin client shell (with g = TitanFactory.open("cassandra-es.local") ). If I try to use the default version included with the download:
storage.backend=cassandrathrift
storage.hostname=127.0.0.1
The graph won't know anything about the ES index ("Index is unknown or not configured: search").
If I configure it with:
storage.backend=cassandrathrift
storage.hostname=127.0.0.1
storage.index.search.backend=elasticsearch
storage.index.search.client-only=false
storage.index.search.directory=/tmp/cassandra/elasticsearch
It will create an ES instance on another port that seems to exist separately from the one used by the server.
My question: (how) can I set up my Gremlin console to properly communicate with the Titan Embedded Server?
There was some recent discussion about this on the Google group. It looks like it's actually not possible to run two ES instances on one machine, so one of the easier ways around this is to set up ES separately on a VM.
I tried out this solution, and it works fine with these lines in both cassandra-es.local and titan-server-cassandra-es.properties:
storage.index.search.backend=elasticsearch
storage.index.search.hostname=<VM ES server IP>
storage.index.search.client-only=true
I can now access the same ES index from both the Gremlin shell and the Titan server.
How do I add new Database support (MongoDB) in 2.6.3 version of WSO2 Data Service Server.
You can use DSS (2.6.3) with any database type if the database connectivity is exposed via JDBC. In other words, if your preferred database type exposes a JDBC driver/adapter for the users to connect to it via JDBC then you can use DSS to expose your data stored in your data store as a web service. Similarly, if MongoDB too has a JDBC adapter you wouldn't have any (or too many :) ) issues integrating that with DSS. However, there are some exceptions when it comes to exposing flat files such as google spreadsheeets, excel sheets, csv files as DSS uses the relevant client APIs such as Google gdate client API, Apache POI, etc to connect to those datasources and extract data. However, if we consider the general case is you need to have an adapter or a similar mechanism to connect to your datasource via JDBC.
But in the upcoming version of DSS (v3.0.0), it is planned to introduce custom datasource support so you can easily write an adapter to any datasource and use it with DSS.
Regards,
Prabath
I am not sure about this, but I suppose that if is not supported by default you can always download the jar library for MongoDB and put it in CARBON_HOME\repository\components\lib and restart. For example for mysql I have the mysql-connector-java-5.1.7-bin.jar in that folder.
Hope this help