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What are the differences between ArrayList and Vector?
... allow concurrent reads? Fine. Want to perform one synchronization for a batch of ten writes? Also fine. It does require a little more care on your end, but it's likely what you want. Also note that if you have an ArrayList, you can use the Collections.synchronizedList function to create a syn...
Cluster analysis in R: determine the optimal number of clusters
...t.obj)
css.obj <- css.hclust(dist.obj,hclust.obj)
elbow.obj <- elbow.batch(css.obj)
k <- elbow.obj$k
return(k)
}
Running Elbow parallel
no_cores <- detectCores()
cl<-makeCluster(no_cores)
clusterEvalQ(cl, library(GMD))
clusterExport(cl, list("data.clustering", "data.con...
Shards and replicas in Elasticsearch
...:17
Andy
333 bronze badges
answered Mar 29 '13 at 15:11
javannajavanna
51.7k1212 gold b...
Distributed sequence number generation?
...
i like your point about the batch id generation, but it just limits any real time calculation possibility.
– ishan
Jul 10 '15 at 18:19
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Migrating from JSF 1.2 to JSF 2.0
...emoved taglig annotation), then followed community.jboss.org/wiki/RichFaces333AndJSF20 and finally had to do this stackoverflow.com/questions/85532/…
– Toskan
Dec 29 '11 at 19:19
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What exactly is metaprogramming?
... then eval it) or to emit another language (using .NET to create a windows batch file).
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What does “Auto packing the repository for optimum performance” mean?
...press) objects, so Git initially creates loose objects, then packs them in batches now and then, via automatic invocation of git gc --auto.
If you let Git finish repacking, this won't happen again for a while. It can indeed take a while, especially if you have a lot of large binary objects, but if ...
Write a program to find 100 largest numbers out of an array of 1 billion numbers
... QuickSelect again. Continue until you have run though the entire input in batches of 100.
At the end you have the top 100 values. For N values you have run QuickSelect roughly N/100 times. Each Quickselect cost about 200 times some constant, so the total cost is 2N times some constant. This looks ...
What's wrong with foreign keys?
...sually a good thing). This is especially painful when you are doing large batch updates, and you load up one table before another, with the second table creating consistent state (but should you be doing that sort of thing if there is a possibility that the second load fails and your database is no...
Find size of Git repository
... files in the repo history:
git rev-list --objects --all | git cat-file --batch-check="%(objectsize) %(rest)" | cut -d" " -f1 | paste -s -d + - | bc
You can replace --all with a treeish (HEAD, origin/master, etc.) to calculate the size of a branch.
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