suites/rados: remove cache mode thrashing test

This is known to be unreliable (because the 'forward' mode does
not keep client ops ordered properly).  Disable it.

(Upstream we've replaced 'forward' with 'proxy'.)

Signed-off-by: Sage Weil <sage@redhat.com>

diff --git a/suites/rados/singleton/all/thrash_cache_writeback_forward_none.yaml b/suites/rados/singleton/all/thrash_cache_writeback_forward_none.yaml
deleted file mode 100644 (file)
index 80a222b..0000000
--- a/suites/rados/singleton/all/thrash_cache_writeback_forward_none.yaml
+++ /dev/null
@@ -1,62 +0,0 @@
-roles:
-- - mon.a
-  - osd.0
-  - osd.1
-  - osd.2
-- - osd.3
-  - osd.4
-  - osd.5
-  - client.0
-tasks:
-- install:
-- ceph:
-    log-whitelist:
-    - wrongly marked me down
-    - slow request
-- exec:
-    client.0:
-      - ceph osd pool create base 4
-      - ceph osd pool create cache 4
-      - ceph osd tier add base cache
-      - ceph osd tier cache-mode cache writeback
-      - ceph osd tier set-overlay base cache
-      - ceph osd pool set cache hit_set_type bloom
-      - ceph osd pool set cache hit_set_count 8
-      - ceph osd pool set cache hit_set_period 60
-      - ceph osd pool set cache target_max_objects 500
-- background_exec:
-    mon.a:
-      - while true
-      - do sleep 30
-      - echo forward
-      - ceph osd tier cache-mode cache forward
-      - sleep 10
-      - ceph osd pool set cache cache_target_full_ratio .001
-      - echo cache-try-flush-evict-all
-      - rados -p cache cache-try-flush-evict-all
-      - sleep 5
-      - echo cache-flush-evict-all
-      - rados -p cache cache-flush-evict-all
-      - sleep 5
-      - echo remove overlay
-      - ceph osd tier remove-overlay base
-      - sleep 20
-      - echo add writeback overlay
-      - ceph osd tier cache-mode cache writeback
-      - ceph osd pool set cache cache_target_full_ratio .8
-      - ceph osd tier set-overlay base cache
-      - sleep 30
-      - ceph osd tier cache-mode cache readforward
-      - done
-- rados:
-    clients: [client.0]
-    pools: [base]
-    max_seconds: 600
-    ops: 400000
-    objects: 10000
-    size: 1024
-    op_weights:
-      read: 100
-      write: 100
-      delete: 50
-      copy_from: 50