On Fri, Apr 12, 2013 at 1:12 PM, Dane Miller <d...@optimalsocial.com> wrote: > I'm seeing hinted handoff kick in on all our nodes during periods of > high activity, but all the nodes seem to be up (according to the logs > and nodetool status). The pattern in the logs is something like this: > > 18:10:45 194 READ messages dropped in last 5000ms > 18:11:10 Started hinted handoff for host: > 7668c813-41a9-4d42-b362-5420528fefa0 with IP: /10.... > 18:11:11 Finished hinted handoff of 13 rows to endpoint /10.... > > This happens on all the nodes every 10 min, and with a different > endpoint each time. tpstats shows thousands of dropped reads, but no > other types of messages are dropped. > > Do slow reads trigger hint storage? If hints are being stored, > doesn't that imply DOWN nodes, and why don't I see that in the logs?
Sorry, meant to add: Cassandra 1.2.3, Ubuntu 12.04 x64
