21–30 of 96 posts
Earlier quoted context omitted.
I meant database consistency in the sense of never needing "repair tables"; although as far as I know, CouchDB's automatic conflict resolution is also consistent (based on UUIDs), isn't it? Clarified it, thanks!
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Earlier quoted context omitted.
I meant database consistency in the sense of never needing "repair tables"; although as far as I know, CouchDB's automatic conflict resolution is also consistent (based on UUIDs), isn't it? Clarified it, thanks!
[deleted]
Also of note, if the edits that caused the conflict are replicated to other nodes, each node will independently choose the same revision to use as the 'primary' document response.
Bottom line, the choice is deterministic and is guaranteed to be preserved, but the choice may not be the last written revision.
Also, bugs that result in corrupt dbs are treated as major bugs as opposed to a part of the design. I've also not seen reports of index corruption under load, if you have logs or any more information we'd definitely appreciate if you could put that info into a ticket on JIRA [1] or even just mail dev@couchdb.apache.org with details.
Apples vs Oranges vs Strawberries vs Pineapple vs Grapes Apples usually stay crispy unless baked. Good in pies. Oranges can be sour (or sweet). Do not bake. Strawberries are red. Good in pies, advise against baking. Pineapples are rough on the outside. Good fresh, baked, grilled, fried, debatable on pizza. Grapes come in many colors and sizes. Great fresh or turned into alcoholic beverages. (Not the worst introductio…
Pineapple Guava (Acca Sellowania) -- Small green fruit. Seeds soft and edible, skin optional. Turpentine flavor signals overripe. Cold hardy and grown in many parts of the US as an evergreen ornamental. Delicious eaten raw.
Strawberry Guava (Psidium cattleianum) --- Tasty small soft red fruit with very fragrant aroma and many small hard seeds. Skin edible, but seeds best avoided. Can be eaten out of hand, but low commercial use. Frost tolerant in mild climates.
White Guava (Psidium guajava) --- True tropical guava, thus barely if at all frost-tolerant. Large fragrant fruit with inedible hard seeds. Usually used for juice or puree, rarely eaten out of hand. Wonderful strong aroma increases with ripeness.
While obviously not of use to a producer of guavas, this sort of cheat sheet might be helpful to someone who happens to encounter one of these varieties in a grocery store or tree nursery. At the least, it might keep someone from breaking their teeth on the inedible hard seeds!
> While SQL databases are insanely useful tools, their tyranny of ~15 years is coming to an end This shit, AGAIN? Really? No, they are not.
With AppEngine at Google, MongoDB at Disqus, Cassandra at Facebook and Redis at Github you can definitely say that SQL databases are one of many options available today and don't dominate like they did 5 years ago.
SQL is being replaced in niches that strain its model. elsewhere, it remains steadfast.
Apples vs Oranges vs Strawberries vs Pineapple vs Grapes Apples usually stay crispy unless baked. Good in pies. Oranges can be sour (or sweet). Do not bake. Strawberries are red. Good in pies, advise against baking. Pineapples are rough on the outside. Good fresh, baked, grilled, fried, debatable on pizza. Grapes come in many colors and sizes. Great fresh or turned into alcoholic beverages. (Not the worst introductio…
Actually, this would be useful and not superficial to someone who has seen pictures of these fruits but has never seen one in real life. Obviously it can be refined, but the idea is not bad. For example, try this with some quite different but seemingly similar fruits that most people are not as familiar with: Pineapple Guava (Acca Sellowania) -- Small green fruit. Seeds soft and edible, skin optional. Turpentine flav…
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> While SQL databases are insanely useful tools, their tyranny of ~15 years is coming to an end This shit, AGAIN? Really? No, they are not.
I also don't understand the 15 years figure either, is that a reference to when MySQL was initially released? I hope the original poster understands that SQL is older than that.
Earlier quoted context omitted.
With AppEngine at Google, MongoDB at Disqus, Cassandra at Facebook and Redis at Github you can definitely say that SQL databases are one of many options available today and don't dominate like they did 5 years ago.
if i'm not mistaken, the majority of those organizations still rely heavily on relational datastores, except in the case of exceptional workloads. in addition, i believe facebook has since migrated away from cassandra to the hadoop stack for their messaging platform, though they primarily use mysql (or its successors). SQL is being replaced in niches that strain its model. elsewhere, it remains steadfast.
I think nobody expects SQL's "market share" to fall to low levels, especially with noSQL requiring much deeper understanding of the data and it's planned use. NoSQL practically operates on a lower layer than SQL does.
Still, it's nice to see people thinking about data storage choices and not going blindly to MySQL/Oracle/etc!
Apples vs Oranges vs Strawberries vs Pineapple vs Grapes Apples usually stay crispy unless baked. Good in pies. Oranges can be sour (or sweet). Do not bake. Strawberries are red. Good in pies, advise against baking. Pineapples are rough on the outside. Good fresh, baked, grilled, fried, debatable on pizza. Grapes come in many colors and sizes. Great fresh or turned into alcoholic beverages. (Not the worst introductio…
I'd rather know about these superficialities than know nothing at all.