couchdb

问题 I have one couchdb database and I am querying it in parallel. Now, I want to create a connection pool, because I discovered a bottleneck in my design - I was using a single instance of couchd , so parallelization was failing due to that. I searched the web for connection pool implementations, but I was not able to find a proper java connection pool implementation for couchdb - most of the frameworks support relational databases. I will be appreciated if someone can help me for that. 回答1: I've

问题 I'm using CouchDB for storing images and I'd like to know how to get an image from that CouchDD document to display it in HTML page. like: <img src= "....."> Are there any code examples I can follow? 回答1: You can store converted png-(jpg/gif) image in BLOB field <img src="data:image/png;base64,<?php echo $base64PNGImage ?>"> 回答2: If I got you right you just want to display the image right out of the document's attachements object. Just use the following URI construct: /database/document-id

问题 I am generating a dynamic html table. One of the columns in the table has a clickable image ( a href ). For testing, I have also created a static table, with similar structure as the dynamic table, in the same div. I have defined a selectors/a/click.js event handler, which works fine for the links in the static table, but not in the dynamic table. It seems that, since the table is dynamically generated, evently is not attaching any event handlers to it. Could somebody suggest a workaround for

问题 I'm building an address-book app that uses a back-end Cloudant database. The database stores 3 types of documents: -> User Profile document -> Group document -> User-to-Group Link document As the names of the document go, there are users in my database, there are groups for users(like whatsapp), and there are link documents for each user to a group (the link document also stores settings/privileges of that user in that group). My client-side app on login, queries cloudant for the user

问题 See the following code from http://wiki.apache.org/couchdb/Replication. Notice that docs_written = docs_read, but progress = 3. Why isn't progress = 100? Also, would there be any difference between couchdb and couchbase? $ curl http://localhost:5984/_active_tasks [ { "pid": "<0.1303.0>", "replication_id": "e42a443f5d08375c8c7a1c3af60518fb+create_target", "checkpointed_source_seq": 17333, "continuous": false, "doc_write_failures": 0, "docs_read": 17833, "docs_written": 17833, "missing

问题 I have a hybrid app that generates a lot of tombstones on couchdb. About 100,000 a month on the server. Each user should be getting about 4 a day. Does Pouchdb maintain tombstones? Or do they get compacted or purged? Or is there a command to do that? Or do I have to drop the database and recreate periodically? Thanks 回答1: Pouchdb does keep a tombstone when deleting a document. Purge is not available yet for PouchDB so the only way to completely deletes documents is by deleting the local

问题 I'm using the following jQuery code to get a JSON file from CouchDB. Function getURL() { var api_url = 'http://127.0.0.1:5984/couchcontentqueue/_design/DocCollections/_view/view_all_by_url_name?key="favorite-flickr-photos"&?callback=?'; $.getJSON(api_url, function(json) { var type = json.type; var desc = json.description; $("#dropBox h3").html(type); $("#dropBox p").html(desc); }); }; When I do a GET on that URL it provides back the following: {"total_rows":6,"offset":5,"rows":[ {"id":

问题 CouchDB offers the ability to perform faceted search via Lucene. I would like to perform a faceted search where one of the facets is geospatial (e.g. within 30km of a lat/long). Is this possible, and if so how? 回答1: Check out GeoCouch it's a fork of CouchDB that supports geospatial queries/indexes. 来源： https://stackoverflow.com/questions/9101367/faceted-search-with-geo-index-using-couchdb

问题 I just worked myself through a wiki article and blogposts regarding CouchDB's security. Now I am wondering how this is done in Android. The Android platforms security is relying on sandboxing applications, so config files can not be stored every but the app directory or maybe the sd card attached. As I learned, server admins are configured in a .ini file and the require_valid_user settings as well in regular CouchDB instances. On Android, I know, that uppon installation, CouchDB is storing a

问题 So we've been building an app that uses couchDb/cloudant with Pouchdb as our driver client side (ionic framework) and server side (node). Of late we've been getting errors when connecting to the remote, that seem to appear at random and only disappear temporarily restarting the app, or opening a new browser. update-data.service.js:38 Error: ETIMEDOUT(…)(anonymous function) @ update-data.service.js:38processQueue @ angular.js:16383(anonymous function) @ angular.js:16399$eval @ angular.js:17682