jjirsa

26 ms·

211.
by jjirsa 10y ago
Cassandra was literally designed for this class of problem, and redis wasn't, isn't, and never will be. The bucketing they're doing is within a partition - they still get all data in a logical cluster, which gives them transp
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by jjirsa 10y ago
Full compactions really shouldn't be needed - if the tombstones are problematic you may be able to data model around it.
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by jjirsa 10y ago
Look for local meetups - in Seattle there's "Seattle Scalability" which is great for this sort of thing (and highscalability used to be great for this, too).
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by jjirsa 10y ago
Wildly biased Cassandra person, but I find this very well written and explained, and I'm especially happy that when you bumped into problems like wide partition and tombstone memory pressure, you didn't just throw up your hands, b
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by jjirsa 10y ago
The tombstone problem described is due to misuse - probably from improper use of prepared statements. Looks like they worked around it well.
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by jjirsa 10y ago
I find it fascinating that people still think Cassandra is some risky new tech - been running it in production since 2010, and the fact that people are still worried about it makes me snicker a bit.
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by jjirsa 10y ago
You can have strong consistency in Cassandra - ING gave a talk at Cassandra summit 2015 on their multi-DC Strongly consistent use cases Cassandra let's you choose - per query - how many replicas must ack the query. Strong consistency i
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by jjirsa 10y ago
Hey kids, If you run any sort of database, now's the time to put it behind a firewall. Hugs and kisses, Common Sense
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by jjirsa 10y ago
> Ex of bad question: Implement a stringbuilder. We used to ask people to implement standard date-related functions. "That's stupid, all the date functions are already written, and they handle all the weird edge cases for you!&
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by jjirsa 10y ago
> fact that he appeals to the majority of people citation needed.
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by jjirsa 10y ago
The PMC can (should) invite active members of the community - there's no fixed size, the PMC can add members at any time. There's no need to worry about ratios of people committing code - the PMC is about guidance, not about writi
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by jjirsa 10y ago
Apparently what they wanted? There's no evidence they ever tried to use their overwhelming majority in the PMC to do anything that even remotely resembled control. What they did was fail to enforce rules, primarily around trademarks -
223.
by jjirsa 10y ago
Sometimes members of the PMC are on the PMC to help committers do things in the Apache way - Jim (in particular) is a member of the ASF board and likely mentored the project early on (I'd go check to be certain but I'm mobile at t
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by jjirsa 10y ago
I feel like I've sent more than enough emails on this subject already, so rather than nit pick tiny things in your comment with which I disagree, I'm just going to say that I agree with your closing sentence.
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by jjirsa 10y ago
I've committed a few Instaclustr patches in the past month - they weren't huge, but they exist (and I appreciate that). Also some patches coming out of FB/Instagram (with a new committer as well).
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by jjirsa 10y ago
> the doom and gloom narrative played by the article seems a bit disingenuous to say the least Would you have read it if it said "a bunch of nerds argued about nerdy things on the internet, and in the end, everything will be OK&quot
227.
by jjirsa 10y ago
Can you link the jira for the mvn/ant bug? Or, if it doesn't exist, can you create it?
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by jjirsa 10y ago
Datastax sells Datastax enterprise, which is a closed source fork. Yes, they could have a non-ASF open source fork, but what's the purpose? What do they gain? That just fractures the community - the same community they need in order to
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by jjirsa 10y ago
ctrl-f, "cassandra", 0 of 0... what's context?
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by jjirsa 10y ago
Also at Crowdstrike: https://www.crowdstrike.com/careers/?p=job%2FoGBT3fwX Our infrastructure / data services team manages petabytes of data in various cloud databases (cassandra/ES/postgres/kafka).
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by jjirsa 10y ago
High demand. Very small supply.
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by jjirsa 10y ago
Pretty good, honestly. Encourage you to email for more info.
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by jjirsa 10y ago
Crowdstrike | Full-time | SF, Irvine, Seattle, DC, or Remote (US) | www.crowdstrike.com CrowdStrike (www.crowdstrike.com) is looking to hire a Sr. Engineer - Data Services in the Seattle or Irvine area, to help us take our internal automati
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by jjirsa 10y ago
> Why are you choosing Cassandra every time? Linear horizontal scaling (double capacity? double # of nodes), no SPOF, Active/Active/Active cross-WAN HA. > And what's your refutation for his desire to use MySQL over som
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by jjirsa 10y ago
Marty is a smart guy. He was smarter than me when we were in college together, and he's smarter than me now. But I disagree with him strongly here. Sometimes hipster tech is just hipster for the sake of hipster, but if I have to choose
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by jjirsa 10y ago
Crowdstrike | Full-time | SF, Irvine, Seattle, DC, or Remote (US) | www.crowdstrike.com CrowdStrike (www.crowdstrike.com) is looking to hire a Sr. Software Engineer - Data Services in the Seattle or Irvine area, to help us take our internal
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by jjirsa 11y ago
Not always as clearcut as you may expect.
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by jjirsa 13y ago
How often are you updating the json values? 10/s? 100/s? 1M/s? How many string keys? Millions? Billions? What happens if you lose an update? Redis great for lots of rapid reads and moderate write speed for data that fits on a