Look at the "max_dbs_open" configuration parameter in the .ini files and increase it to a higher value.
On Fri, Apr 22, 2011 at 3:01 PM, Jonathan Johnson <[email protected]> wrote: > I'm running couchdb 1.0.2 on CentOS 5.5. The databases are on an ext4 > formatted drive. > > I have 209 databases, but they're never truly active at the same time. > Our stack is written in ruby. The web layer switches between active > databases depending on the url. However, we have 16 web processes, so > in theory the maximum number of truly active databases is 16. > > We also have a daemon process that loops through a chunk of the > databases periodically. However, it's one thread, and as such also > only truly works with one database at a time. > > My understanding is that CouchRest doesn't keep HTTP connections alive > for multiple requests, but I don't know that for sure. I have even > gone as far as putting in manual garbage collection calls in my daemon > to ensure that any stranded connection objects will be collected. > > With all of that, however, I eventually get into a state where I get > the all_dbs_active error. It doesn't happen often -- last time was > nearly 3 weeks ago. However, once it gets in the state, restarting all > of my clients doesn't release the databases. The only way to recover > is to restart couch. > > open_os_files was at 2308 before I restarted it this morning, which is > less than the current limit set (4096). > > I guess I feel like this is an issue inside of couch because even if I > quit all of my active server processes that connect to couch, couch > never frees up the open databases. I can hit it one-off from my > browser and still get the error, even though I'm the only active > connection. > > Has anyone else seen this? Any ideas of what I can try to prevent this > from happening? > > Thanks! > -Jon > -- Filipe David Manana, [email protected], [email protected] "Reasonable men adapt themselves to the world. Unreasonable men adapt the world to themselves. That's why all progress depends on unreasonable men."
