Comments (6)
Having the update as a map would be easier I think :
PUT /request/file/all/byPath/update/
{
startkey: "/some/path/"
endkey: "/some/path/ZZZZ"
update: {
lastModification: 3554232,
author: "John"
}
}
Or, more powerful (and similar performance: 1 request app->DS, 2X request DS->Couch) a function
PUT /request/file/all/byPath/update/
{
startkey: "/some/path/"
endkey: "/some/path/ZZZZ"
update: "function(doc){
doc.tags = doc.tags.map(function(tag){
if(tag === 'old-name') return 'new-name';
else return tag;
}
return doc
}"
}
I agree this would be convenient and might improve performance of some cozy apps.
Not sure when we will have the time to do it
from cozy-data-system.
Yes, a map would indeed be better (I wonder how I could have missed this). I'll try to add this feature if I get some time soon, this could show useful for Kresus.
from cozy-data-system.
👍 This would be useful to import larger time series (for example, 15 years of currency data for ~10 different currencies is north of 25000 values).
EDIT: Actually, bulk insert would be useful for that, which also shouldn't be very different from bulk delete / update.
from cozy-data-system.
FYI, according to this post about couchdb performance:
- Inserting docs one-by-one happens at
~260 docs/sec
, - Inserting docs in bulk (groups of 10000 docs) happens at
~2700 docs/sec
, - With even more optimizations (e.g. bypass HTTP and JSON conversions) it can go higher than
10500 docs/sec
.
from cozy-data-system.
@jankeromnes , One thing to keep in mind is that cozy has a lot of views in couchdb. So adding many documents slow down the whole cozy. We already had some troubles with emails when importing large accounts.
So for your use case of currency, (ie. never changing values). The performance-optimal solution would be to have huge documents with, say, all data for a month and then using views to produce the index you need
function(doc){
if (doc.docType == 'MonthOfCurrencyExchange')
for (date in doc.dates)
for (currency in date.currencies)
emit(date, currency, value);
from cozy-data-system.
Interesting idea, thanks @aenario! Actually it might even be faster to store all my values in one single document, since the number of documents seems to be the bottleneck. I'll try different options.
from cozy-data-system.
Related Issues (20)
- Creation of a sharing controller HOT 4
- Fine-grained permission control through id
- TypeError: Cannot read property 'targetDocType' of null HOT 1
- 30G of cozy.couch - any chance of reducing it ? HOT 5
- “Application not authorized” should be less verbose
- cozy update crash on data-system update HOT 7
- Don't crash when index is not available HOT 2
- Convert binaries error
- TypeError: error:0606506D:digital envelope routines:EVP_DecryptFinal_ex:wrong final block length HOT 1
- Improve "Error: Application is not authorized" error handling
- TypeError: Cannot read property 'docType' of undefined HOT 1
- Diacritics in file name makes data-system crash HOT 4
- Add file checksum automatically HOT 1
- Error trying to download a large folder HOT 3
- Extract EXIF data when adding pictures HOT 1
- Allow to disable the inner indexer
- Files doesn't (always) generate previews of pictures HOT 1
- Error creating thumbnails: TypeError: Cannot read property 'id' of undefined
- Allow replication to access /replication/_all_docs URLs HOT 1
- Server error: Forbidden operation | Buffer isn't a JSON valid
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