Cassandra DTests deadlocks on random test

2017-10-19 Thread Sergey La
Hi! I have created the patch for the Cassandra version 3.0.14 and trying to test it using the cassandra dtests. Problem is - dtests deadlocks at some random tests, time and again - on unpatched 3.0.14 version of Cassandra. What I have done. I cloned the cassandra repository (origin http://git-

Re: Cassandra DTests deadlocks on random test

2017-10-19 Thread Michael Shuler
7.6G RAM may be a little bit too small, we've seen similar random hangs in the past on non-resource-intensive tests on m3.large. It doesn't appear you are skipping resource-intensive tests. Our standard dtest instance type has been an m3.xlarge, and the resource-intensive tests are run m3.2xlarge.

Options to add a column to column family with compact storage

2017-10-19 Thread Li, Guangxing
Hi, I have a column family with compact storage setting: CREATE TABLE course_book_catalogue ( key text, "actVersion" int, "addonResources" text, "assessmentOpnrEnabled" boolean, "attachmentId" text, version int, PRIMARY KEY ((key)) ) WITH COMPACT STORAGE AND... I have a need to add

Re: Cassandra DTests deadlocks on random test

2017-10-19 Thread Murukesh Mohanan
I have had this problem too on similarly spec'd OpenStack instances (but I'm reasonably certain I didn't include the resource-intensive tests). My solution was to run the dtests in small batches (say 5-10 each), with a timeout (say 1.2x the max for 5 tests from a good run). Kill the test if exceeds