ADMIN magazineJul 23, 2024
Is your organization looking for a database management system that offers flexibility and freedom? Download this new focus guide and get up to speed on the open source database ecosystem. https://mailchi.mp/admin-magazine.com/open-source-databases
#OpenSource #database #Percona #MongoDB #MySQL #MariaDB #PostgreSQL #Firebird #CUBRID #NoSQL #JanusGraph #Redis #CouchDB #DBMS #SQL #ApacheCassandra
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ADMIN magazineJun 14, 2024
Are you looking for a database management system but unsure where to start? Download this free focus guide and learn about the advantages of an open source database solution. https://mailchi.mp/admin-magazine.com/open-source-databases
#OpenSource #database #Percona #MySQL #MariaDB #PostgreSQL #Firebird #CUBRID #NoSQL #JanusGraph #Redis #CouchDB #DBMS #SQL #ApacheCassandra
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ADMIN magazineMay 30, 2024
Free Focus Guide: To harness the power of data, you need a database management system that offers flexibility and freedom. Download this new focus guide and get up to speed on the open source database ecosystem. https://mailchi.mp/admin-magazine.com/open-source-databases
#OpenSource #database #Percona #MongoDB #MySQL #MariaDB #PostgreSQL #Firebird #CUBRID #NoSQL #JanusGraph #Redis #CouchDB #DBMS #SQL #ApacheCassandra
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Linux MagazineApr 12, 2024
From the Linux Update newsletter: Open source database management systems offer flexibility and lower costs while avoiding vendor lock-in, but how do you choose the one that's right for your organization? https://www.linux-magazine.com/Issues/2024/282/Data-Management #DBMS #Firebird #MySQL #PostgreSQL #MariaDB #NoSQL #CUBRID #ApacheCassandra #MongoDB #JanusGraph #Redis #CouchDB
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Open source database management systems offer greater flexibility and lower costs while avoiding vendor lock-in. Finding the right one depends on y...

Linux Magazine
Doug Whitfield [Minneapolis]Mar 22, 2023

You can see my commentary in more long-form at https://datamost.com/dw/note/ax7jz0n7SRCssxUvKIyflA but I stick to the tags here.

#jobs

10+ years of software development, or systems administration or level 3-4 tech support experience
Min 3 years implementation & troubleshooting experience in #Linux, #Java, #Kubernetes, or #Hadoop
5+ years of hands-on experience working w/ a combination of database technologies (e.g. Oracle, #MySQL/ #MariaDB, #Postgres, #MongoDB, #Cassandra, Neo4j/ #JanusGraph)

https://www.thegravityapp.com/shared/job?clientId=8a7883c6611cbac301611eab8b34377a&id=8a78879e86e83775018705a1d1b84de2&u=1679427154&v=9&token=eyJ1aWQiOjE1MDk4LCJwcm92aWRlciI6ImJvdW5jZSIsInR5cGUiOiJlbWFpbCJ9.pW-ofRd0ll2f0_6pPfsTwzP2SsU

note by Doug Whitfield - datamost.com

Doug Whitfield [Minneapolis]Jun 29, 2022

I've got an intractable issue. No help so far from the #JanusGraph gitter.

Anybody got any ideas on the next direction to go after discovery that I have 11 threads waiting on this one?

#java

Not enough char for the full message, but I believe this is the money line:

Locked ownable synchronizers:
- <0x00007f6ecc104b30> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)

https://pastebin.com/uHgTW6Ym

Here’s the offending thread. 0x00007f6ecc104b30 is the problem:"gremlin-server-e - Pastebin.com

Pastebin.com is the number one paste tool since 2002. Pastebin is a website where you can store text online for a set period of time.

Pastebin
Douglas A. WhitfieldApr 7, 2022
There is nothing public yet, but we are getting ready to hire in #India (Pune, I suspect). If you know technologists there with any of the following skills, have them get in touch: #kubernetes, #istio, #postgres, #apachecassandra #calico #java #apachetomcat #apachehttpd #mysql #mariadb #apachekafka #apachenifi #nomad #hadoop #janusgraph #neo4j #centos #ubuntu #linux #suse #rancher #ovirt #openstack #apachespark #angularjs #patroni #apachesolr #redis #elasticsearch #fluentd #grafana #prometheus
tommyFeb 16, 2021
I wrote an article sharing multi-year insights into how I am ingesting about 800 feed sources (RSS, Alienvault OTX and the Twitter realtime hose).

I also share some details on structuring for searchability in Janusgraph (backed by Cassandra and Lucene). All relatively computational inexpensive (one node only).

https://252.no/~tommy/writings/2021-02-16-signals-feeds.html

#gremlin #janusgraph #go #parser #aggregator #feeds #rss #otx #twitter

tommySep 22, 2020
Today's lesson 1) if you work with little computing resources available, you have incentive to optimize your code.

Lesson 2) you should use schema.default=none in Janusgraph to enforce that all attributes of vertices are registered.

https://docs.janusgraph.org/basics/schema/

#lessons #janusgraph #graphdb

tommySep 20, 2020
Fooled for several days by a 100% CPU utilization and frustrated over a performance drop with Janusgraph passing about 100k nodes and 100k edges. It dropped to nearly zero.

I was about to go full metal and buy a 6 node mATX cluster with 48 AMD-cores and 96GB of memory.

However, double-checking my config I noticed that it had reverted from being Cassandra and Elasticsearch-backed to an in-memory config. We all know how that goes with a standard Java configuration.

I guess my 2014 Mac mini will get to live a little longer.

#macmini #ftw #config #janusgraph #memory