[LU-8413] sanity test_101f fails with 'misses too much pages!'

Duplicate — Tue, 28 Mar 2017 17:11:00 +0000

sanity test 101f fails with

'misses too much pages!'

From the test_log on the client, we see

== sanity test 101f: check mmap read performance ===================================================== 02:47:36 (1468403256)
/usr/bin/iozone
Cancel LRU locks on lustre client to flush the client cache
Reset readahead stats
mmap read the file with small block size
checking missing pages
 sanity test_101f: @@@@@@ FAIL: misses too much pages!

Here is the check that is failing in the test code:

       local miss=$($LCTL get_param -n llite.*.read_ahead_stats |
                        get_named_value 'misses' | cut -d" " -f1 | calc_total)

        [ $miss -lt 3 ] || error "misses too much pages ('$miss')!"

There’s nothing interesting in the console logs.

This test does NOT fail consistently and has failed with this error message six times since 13-July-2016:
2016-07-13 - https://testing.hpdd.intel.com/test_sets/43aec3ae-48e8-11e6-8968-5254006e85c2
2016-07-13 - https://testing.hpdd.intel.com/test_sets/af1ac4e8-4948-11e6-9f8e-5254006e85c2
2016-07-14 - https://testing.hpdd.intel.com/test_sets/c663d7fa-49b3-11e6-9f8e-5254006e85c2
2016-07-14 - https://testing.hpdd.intel.com/test_sets/95d24332-4a27-11e6-bf87-5254006e85c2
2016-07-17 - https://testing.hpdd.intel.com/test_sets/c3840482-4c02-11e6-bf87-5254006e85c2
2016-07-17 - https://testing.hpdd.intel.com/test_sets/ca53ff1e-4c71-11e6-9f8e-5254006e85c2

Whamcloud Community JIRA

[LU-8413] sanity test_101f fails with 'misses too much pages!'