arvindshmicrosoft commented on a change in pull request #270: Support Accumulo installs on Microsoft Azure URL: https://github.com/apache/fluo-muchos/pull/270#discussion_r312264013
########## File path: ansible/roles/common/tasks/os.yml ########## @@ -17,6 +17,12 @@ - name: "set swappiness to zero" sysctl: name=vm.swappiness value=0 +- name: "set vm.min_free_kbytes to 1G" Review comment: Thanks for the question, Keith. In our performance tests on Azure, we found that with larger numbers of test clients (we are testing with cingest) per tserver node, and with large native maps, we were hitting strange "page allocation failure" errors (not OOM killer though) with symptoms similar to those described in these threads: * https://bugzilla.kernel.org/show_bug.cgi?id=107111 * https://access.redhat.com/solutions/90883 * https://serverfault.com/questions/236170/page-allocation-failure-am-i-running-out-of-memory Again, if you prefer we keep these conditional when cluster_type == 'azure', that's easy for us to do. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
