Is it possible to boost up views/indexes creation in couchdb by multiple cores? -


we have converted database of app run-time logs mysql couchdb. there around 3m docs converted, occupy around 7gb.

then scripted out our first view (with reduce function) , did query invoke first run of view, make out view creation/generation. should take time , did 'top' on machine see process/cpu load stuff. noticed there 2 heavy process:

beam.smp  couchjs

it's interesting seems occupy 1 core, there 4 cores on machine. possible make couchdb make use of multiple cores while creating/updating views?

currently not supported. guess multicore support add complexity couchdb.

so far, couchdb chooses simplicity instead of features. (did know couchdb 18,000 lines of code? compare 1 million in mysql or 100,000 in sqlite.)

when design document view index building, uses 1 couchjs process. if have multiple design documents, will run in parallel. couchdb spawn 1 couchjs process per design document, , os spread them across multiple cores.

however, if need performance, bigcouch apache couchdb-compatible , does support parallelized view index building using oversharded architecture.


Comments

Post a Comment

Popular posts from this blog

apache - Add omitted ? to URLs -

i working on website cms reads page name of query string, e.g. http://exmaple.com/?pagename . trying create rewrite rule rewrite ? . so, user types in /pagename , taken /?pagename try this: rewriteengine on rewritecond %{request_filename} !-d rewritecond %{request_filename} !-f rewriterule ^/?(.*) index.php?$1 [l]
Read more

redirect - bbPress Forum - rewrite to wwww.mysite prohibits login -

i using bbpress installation without wordpress integration. the redirect of rewriteengine @ forum site works: rewriteengine on rewritecond %{http_host} ^forum.mysite.com$ rewriterule (.*)$ http://www.forum.mysite.com/$1 [r=301,l] the problem login pppress. bbpress login not recognize: http://www.forum.mysite/bb-login.php . it redirects to: http://forum.mysite.com/bb-login.php . i tried permalink settings none , name based, same issue. does uses redirect in bbpress or how can eliminate "double" content , redirect permanently www.? i redirected www.forum.mysite.com forum.mysite.com , achieved eliminate "double" content.
Read more

php - How can I stop spam on my custom forum/blog? -

so have custom built forum & blog system of late has been dealing lot of spam. if wordpress use akismet, if different common platform i'm sure i'd find plugin. there kind of static class can download this? using php. i'd still go akismet, if it. uses outside of wordpress, may have pay fee it, depending on use -- check terms , conditions -- it's option , easy implement in php using api. use api key wordpress. com account access. basically, grab whichever php client library takes fancy -- use alex potsides' php5 library -- plug in key, , it's handful of lines of code. here's bare bones of validation straight 1 of live sites: ... if ($akismet) { $akismet->setcommentauthor($name); $akismet->setcommentauthoremail($session->userinfo["email"]); $akismet->setcommentauthorurl(""); $akismet->setcommentcontent($sentence);...
Read more