On 16 November 2011 13:02, Filipe Manana (Resolved) (JIRA) <j...@apache.org> wrote: > > [ > https://issues.apache.org/jira/browse/COUCHDB-1334?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel > ] > > Filipe Manana resolved COUCHDB-1334. > ------------------------------------ > > Resolution: Fixed > Fix Version/s: (was: 1.2) > 1.3 > > Latest patch applied against master. > >> Indexer speedup (for non-native view servers) >> --------------------------------------------- >> >> Key: COUCHDB-1334 >> URL: https://issues.apache.org/jira/browse/COUCHDB-1334 [snip] >> The following 2 patches significantly improve view index generation/update >> time and reduce CPU consumption. >> The first patch makes the view updater's batching more efficient, by >> ensuring each btree bulk insertion adds/removes a minimum of N (=100) >> key/value pairts. This also makes the index file size grow not so fast with >> old data (old btree nodes basically). This behaviour is already done in >> master/trunk in the new indexer (by Paul Davis). >> The second patch maximizes the throughput with an external view server (such >> as couchjs). Basically it makes the pipe (erlang port) communication between >> the Erlang VM (couch_os_process basically) and the view server more >> efficient since the 2 sides spend less time block on reading from the pipe.
Hi Filipe, Just a heads up, but I am consistently having the Erlang VM hang when doing a master build today. Clearly, my issue may not be related to this patch but I can't see anything else after a quick look in git history that stands out. As this uses the same Spidermonkey, Erlang R14B03 + patches etc as for all my other builds, I am assuming this is a bug triggered by CouchDB in the VM somewhere. Hopefully tomorrow I'll both isolate the commit where things go awry, and also find a way of getting some logging or a test case -- it would be great to have a fix for this go into OTP/R15. If you have time, or some advice to share, the binary build is at https://www.dropbox.com/s/jeifcxpbtpo78ak/Snapshots/20111122 Thanks Dave
