4 ms·

Sounds like it could be JPM's 'Athena' platform? context: https://www.techrepublic.com/article/jpmorgans-athena-has-35-million-lines-of-python-code-and-wont-be

Sounds like it could be JPM's 'Athena' platform? context: https://www.techrepublic.com/article/jpmorgans-athena-has-35-million-lines-of-python-code-and-wont-be-updated-to-python-3-in-time/ https://www.techrepublic.com/article/jpmorgans-athena-has-35...

curiousgal 5y ago
They are all similar but in this particular case this is definitely BAML's Quartz.
- simonh 5y ago
  I think Minerva is clearly a reference to Athena.
  - curiousgal 5y ago
    Could be a misdirection because all of the rest fits Quartz to a tee. The Quartz database is called Sandra (referred to as Barbara here). The Quartz directed acyclic graph is called Dag (referred to as Dagger here) The Quartz job runner is called Bob (referred to as Walpole here which is a reference to Robert Warpole whose shortname is..Bob) These and the horrible proprietary IDE make it obvious which particular system he's describing.
    - simonh 5y ago
      I think Athena has equivalents to all of these but I don't know what they're called. I only know Qz.
      - le-chiffre 5y ago
        The Athena database is Hydra; The Athena graph is Pixie; The Athena job runner is also Bob
        tstordyallison 5y ago
        I find it amusing that Bob made it in most of the banks, but few of the other names stuck.
    - cbzbc 5y ago
      How are the Barbara databases synchronized - as multiple nodes are mentioned ? The description makes it sound like it's just a large set of pickles in something like a Berkley DB?
      - simonh 5y ago
        Each server in a ring has a complete copy of the data for that ring. Each ring consists of a network of servers which may have nodes in different geographies. They're called rings, but are actually acyclic networks (IIRC). Replication occurs automatically so you need to manage consistency in your app architecture. For example if you have instances of an app running in different geographies, the specific data for those instances should be in different folders.
duskwuff 5y ago
Certainly does. Some discussion here from a few years back: https://news.ycombinator.com/item?id=23819270 https://news.ycombinator.com/item?id=23819270
trenchgun 5y ago
Yes, but it is also probably similar to what they have in GS & BAML. Model seems to originate from GS: https://news.ycombinator.com/item?id=29104401 https://news.ycombinator.com/item?id=29104401

curiousgal 5y ago

They are all similar but in this particular case this is definitely BAML's Quartz.

simonh 5y ago
I think Minerva is clearly a reference to Athena.
- curiousgal 5y ago
  Could be a misdirection because all of the rest fits Quartz to a tee. The Quartz database is called Sandra (referred to as Barbara here). The Quartz directed acyclic graph is called Dag (referred to as Dagger here) The Quartz job runner is called Bob (referred to as Walpole here which is a reference to Robert Warpole whose shortname is..Bob) These and the horrible proprietary IDE make it obvious which particular system he's describing.
  - simonh 5y ago
    I think Athena has equivalents to all of these but I don't know what they're called. I only know Qz.
    - le-chiffre 5y ago
      The Athena database is Hydra; The Athena graph is Pixie; The Athena job runner is also Bob
      - tstordyallison 5y ago
        I find it amusing that Bob made it in most of the banks, but few of the other names stuck.
  - cbzbc 5y ago
    How are the Barbara databases synchronized - as multiple nodes are mentioned ? The description makes it sound like it's just a large set of pickles in something like a Berkley DB?
    - simonh 5y ago
      Each server in a ring has a complete copy of the data for that ring. Each ring consists of a network of servers which may have nodes in different geographies. They're called rings, but are actually acyclic networks (IIRC). Replication occurs automatically so you need to manage consistency in your app architecture. For example if you have instances of an app running in different geographies, the specific data for those instances should be in different folders.

duskwuff 5y ago

Certainly does. Some discussion here from a few years back: https://news.ycombinator.com/item?id=23819270 https://news.ycombinator.com/item?id=23819270

trenchgun 5y ago

Yes, but it is also probably similar to what they have in GS & BAML. Model seems to originate from GS: https://news.ycombinator.com/item?id=29104401 https://news.ycombinator.com/item?id=29104401