ceph/qa/workunits/rados/test_alloc_hint.sh

   1 #!/bin/bash
   2
   3 set -ex
   4 shopt -s nullglob # fns glob expansion in expect_alloc_hint_eq()
   5
   6 #
   7 # Helpers
   8 #
   9
  10 function get_xml_val() {
  11     local xml="$1"
  12     local tag="$2"
  13
  14     local regex=".*<${tag}>(.*)</${tag}>.*"
  15     if [[ ! "${xml}" =~ ${regex} ]]; then
  16         echo "'${xml}' xml doesn't match '${tag}' tag regex" >&2
  17         return 2
  18     fi
  19
  20     echo "${BASH_REMATCH[1]}"
  21 }
  22
  23 function get_conf_val() {
  24     set -e
  25
  26     local entity="$1"
  27     local option="$2"
  28
  29     local val
  30     val="$(sudo ceph daemon "${entity}" config get --format=xml "${option}")"
  31     val="$(get_xml_val "${val}" "${option}")"
  32
  33     echo "${val}"
  34 }
  35
  36 function setup_osd_data() {
  37     for (( i = 0 ; i < "${NUM_OSDS}" ; i++ )); do
  38         OSD_DATA[i]="$(get_conf_val "osd.$i" "osd_data")"
  39     done
  40 }
  41
  42 function setup_pgid() {
  43     local poolname="$1"
  44     local objname="$2"
  45
  46     local pgid
  47     pgid="$(ceph osd map "${poolname}" "${objname}" --format=xml)"
  48     pgid="$(get_xml_val "${pgid}" "pgid")"
  49
  50     PGID="${pgid}"
  51 }
  52
  53 function expect_alloc_hint_eq() {
  54     local expected_extsize="$1"
  55
  56     for (( i = 0 ; i < "${NUM_OSDS}" ; i++ )); do
  57         # Make sure that stuff is flushed from the journal to the store
  58         # by the time we get to it, as we prod the actual files and not
  59         # the journal.
  60         sudo ceph daemon "osd.${i}" "flush_journal"
  61
  62         # e.g., .../25.6_head/foo__head_7FC1F406__19
  63         #       .../26.bs1_head/bar__head_EFE6384B__1a_ffffffffffffffff_1
  64         local fns=$(sudo sh -c "ls ${OSD_DATA[i]}/current/${PGID}*_head/${OBJ}_*")
  65         local count="${#fns[@]}"
  66         if [ "${count}" -ne 1 ]; then
  67             echo "bad fns count: ${count}" >&2
  68             return 2
  69         fi
  70
  71         local extsize
  72         extsize="$(sudo xfs_io -c extsize "${fns[0]}")"
  73         local extsize_regex="^\[(.*)\] ${fns[0]}$"
  74         if [[ ! "${extsize}" =~ ${extsize_regex} ]]; then
  75             echo "extsize doesn't match extsize_regex: ${extsize}" >&2
  76             return 2
  77         fi
  78         extsize="${BASH_REMATCH[1]}"
  79
  80         if [ "${extsize}" -ne "${expected_extsize}" ]; then
  81             echo "FAIL: alloc_hint: actual ${extsize}, expected ${expected_extsize}" >&2
  82             return 1
  83         fi
  84     done
  85 }
  86
  87 #
  88 # Global setup
  89 #
  90
  91 EC_K="2"
  92 EC_M="1"
  93 NUM_OSDS="$((EC_K + EC_M))"
  94
  95 NUM_PG="12"
  96 NUM_PGP="${NUM_PG}"
  97
  98 LOW_CAP="$(get_conf_val "osd.0" "filestore_max_alloc_hint_size")"
  99 HIGH_CAP="$((LOW_CAP * 10))" # 10M, assuming 1M default cap
 100 SMALL_HINT="$((LOW_CAP / 4))" # 256K, assuming 1M default cap
 101 BIG_HINT="$((LOW_CAP * 6))" # 6M, assuming 1M default cap
 102
 103 setup_osd_data
 104
 105 #
 106 # ReplicatedBackend tests
 107 #
 108
 109 POOL="alloc_hint-rep"
 110 ceph osd pool create "${POOL}" "${NUM_PG}"
 111 ceph osd pool set "${POOL}" size "${NUM_OSDS}"
 112
 113 OBJ="foo"
 114 setup_pgid "${POOL}" "${OBJ}"
 115 rados -p "${POOL}" create "${OBJ}"
 116
 117 # Empty object, SMALL_HINT - expect SMALL_HINT
 118 rados -p "${POOL}" set-alloc-hint "${OBJ}" "${SMALL_HINT}" "${SMALL_HINT}"
 119 expect_alloc_hint_eq "${SMALL_HINT}"
 120
 121 # Try changing to BIG_HINT (1) - expect LOW_CAP (BIG_HINT > LOW_CAP)
 122 rados -p "${POOL}" set-alloc-hint "${OBJ}" "${BIG_HINT}" "${BIG_HINT}"
 123 expect_alloc_hint_eq "${LOW_CAP}"
 124
 125 # Bump the cap to HIGH_CAP
 126 ceph tell 'osd.*' injectargs "--filestore_max_alloc_hint_size ${HIGH_CAP}"
 127
 128 # Try changing to BIG_HINT (2) - expect BIG_HINT (BIG_HINT < HIGH_CAP)
 129 rados -p "${POOL}" set-alloc-hint "${OBJ}" "${BIG_HINT}" "${BIG_HINT}"
 130 expect_alloc_hint_eq "${BIG_HINT}"
 131
 132 ceph tell 'osd.*' injectargs "--filestore_max_alloc_hint_size ${LOW_CAP}"
 133
 134 # Populate object with some data
 135 rados -p "${POOL}" put "${OBJ}" /etc/passwd
 136
 137 # Try changing back to SMALL_HINT - expect BIG_HINT (non-empty object)
 138 rados -p "${POOL}" set-alloc-hint "${OBJ}" "${SMALL_HINT}" "${SMALL_HINT}"
 139 expect_alloc_hint_eq "${BIG_HINT}"
 140
 141 OBJ="bar"
 142 setup_pgid "${POOL}" "${OBJ}"
 143
 144 # Non-existent object, SMALL_HINT - expect SMALL_HINT (object creation)
 145 rados -p "${POOL}" set-alloc-hint "${OBJ}" "${SMALL_HINT}" "${SMALL_HINT}"
 146 expect_alloc_hint_eq "${SMALL_HINT}"
 147
 148 ceph osd pool delete "${POOL}" "${POOL}" --yes-i-really-really-mean-it
 149
 150 #
 151 # ECBackend tests
 152 #
 153
 154 PROFILE="alloc_hint-ecprofile"
 155 POOL="alloc_hint-ec"
 156 ceph osd erasure-code-profile set "${PROFILE}" k=2 m=1 crush-failure-domain=osd
 157 ceph osd erasure-code-profile get "${PROFILE}" # just so it's logged
 158 ceph osd pool create "${POOL}" "${NUM_PG}" "${NUM_PGP}" erasure "${PROFILE}"
 159
 160 OBJ="baz"
 161 setup_pgid "${POOL}" "${OBJ}"
 162 rados -p "${POOL}" create "${OBJ}"
 163
 164 # Empty object, SMALL_HINT - expect scaled-down SMALL_HINT
 165 rados -p "${POOL}" set-alloc-hint "${OBJ}" "${SMALL_HINT}" "${SMALL_HINT}"
 166 expect_alloc_hint_eq "$((SMALL_HINT / EC_K))"
 167
 168 ceph osd pool delete "${POOL}" "${POOL}" --yes-i-really-really-mean-it
 169
 170 #
 171 # Global teardown
 172 #
 173
 174 echo "OK"