epoll was supposed to be disabled as part of this PR [1] pending perf. tests; IIRC test clusters were busy then, and I lost track of this change. I’ll post an update soon.
Thank you, Sudheesh [1] https://github.com/apache/drill/pull/486 <https://github.com/apache/drill/pull/486> > On Jul 26, 2016, at 6:54 PM, Jacques Nadeau <jacq...@dremio.com> wrote: > > I don't think this will fix your issue since this is a internal extraction. > Try using: -Ddrill.exec.enable-epoll=false in your drill-env. That should > (hopefully) disable the extraction of epoll drivers (which should actually > be disabled by default I believe due to disconnection problems in heavy > load cases). > > > -- > Jacques Nadeau > CTO and Co-Founder, Dremio > > On Tue, Jul 26, 2016 at 7:20 AM, scott <tcots8...@gmail.com> wrote: > >> Thanks Leon for the suggestion, but do you think this config change will >> help with my startup problem? It looks like it changes operations for sort >> after startup. >> >> Scott >> >> On Mon, Jul 25, 2016 at 3:55 PM, Leon Clayton <lclay...@maprtech.com> >> wrote: >> >>> >>> I move the /tmp off local disk into the distributed FS on a node local >>> volume on MapR. Other file systems can be inserted. >>> >>> Open up drill-override.conf on all of the nodes, and insert this : >>> >>> sort: { >>> purge.threshold : 100, >>> external: { >>> batch.size : 4000, >>> spill: { >>> batch.size : 4000, >>> group.size : 100, >>> threshold : 200, >>> directories : [ "/var/mapr/local/Hostname/drillspill" ], >>> fs : "maprfs:///" >>> } >>> } >>> } >>> >>>> On 25 Jul 2016, at 16:44, scott <tcots8...@gmail.com> wrote: >>>> >>>> Hello, >>>> I've run into an issue where Drill will not start if mount permissions >>> are >>>> set on /tmp to noexec. The permissions were set to noexec due to >> security >>>> concerns. I'm using Drill version 1.7. The error I get when starting >>> Drill >>>> is: >>>> >>>> Exception in thread "main" java.lang.UnsatisfiedLinkError: >>>> /tmp/libnetty-transport-native-epoll5743269078378802025.so: >>>> /tmp/libnetty-transport-native-epoll5743269078378802025.so: failed to >> map >>>> segment from shared object: Operation not permitted >>>> >>>> Does anyone know of a way to configure Drill to use a different tmp >>>> location? >>>> >>>> Thanks, >>>> Scott >>> >>> >>
