Already have confirmation from Apple that this is a known issue and a fix is in the works, until that fix rolls out though I'm wondering if anyone in the community has found any workarounds. Our office environment consists of roughly 200 Macs connecting to Active Directory & Open Directory (Golden Triangle). Several have now updated to 10.9.5 following the release last week. Those that have updated are seeing the opendirectoryd process continually consume more than 300% of CPU power, which leads to incredibly long logins (5~ minutes to login if it doesn't time out), authentication issues when trying to access network services, fans running at high constantly and overall slow performance. So far the only workarounds we've found are to either unbind from Active Directory and/or disconnect the network cable. Anyone else run into this and find a better workaround yet?