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main_test.go
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// Copyright 2021 DigitalOcean
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"fmt"
"testing"
"github.com/spf13/cobra"
"github.com/stretchr/testify/require"
)
func TestCalcPgMappingsToUndoBackfill(t *testing.T) {
// Corner-case PG states included to ensure we handle them gracefully:
// * 1.999[01]: up and acting sets have different lengths
// * 1.999[23]: up/acting set has duplicate OSDs
pgDumpOut := `
[
{ "pgid": "1.32", "up": [ 7, 5, 9], "acting": [ 7, 5, 9 ] },
{ "pgid": "1.33", "up": [ 6, 0, 10], "acting": [ 6, 10, 2], "state": "backfill_wait" },
{ "pgid": "1.45", "up": [ 6, 3, 2], "acting": [ 6, 3, 2], "state": "backfill_wait" },
{ "pgid": "1.46", "up": [ 4, 6, 0], "acting": [ 4, 6, 1], "state": "backfill_wait" },
{ "pgid": "1.47", "up": [ 0, 11, 4], "acting": [ 2, 11, 4], "state": "backfill_wait" },
{ "pgid": "1.89", "up": [ 10, 2, 8], "acting": [ 10, 2, 8] },
{ "pgid": "1.8a", "up": [ 3, 7, 0], "acting": [ 3, 7, 1], "state": "backfill_wait" },
{ "pgid": "1.8b", "up": [ 3, 6, 0], "acting": [ 3, 7, 1], "state": "backfill_wait" },
{ "pgid": "1.8c", "up": [ 3, 6, 0], "acting": [ 1, 2147483647, 3 ],
"state": "active+undersized+degraded+remapped+backfill_wait" },
{ "pgid": "1.8d", "up": [ 3, 6, 0], "acting": [ 3, 7, 1 ],
"state": "active+remapped+backfilling" },
{ "pgid": "1.8e", "up": [ 23, 26, 20], "acting": [ 23, 27, 21 ], "state": "backfill_wait" },
{ "pgid": "1.8f", "up": [ 33, 36, 30], "acting": [ 33, 37, 31 ], "state": "backfill_wait" },
{ "pgid": "1.90", "up": [ 33, 36, 30], "acting": [ 33, 37, 31 ], "state": "backfill_wait" },
{ "pgid": "1.91", "up": [ 33, 36, 30], "acting": [ 33, 37, 2147483647 ], "state": "backfill_wait" },
{ "pgid": "1.92", "up": [ 3, 6, 1], "acting": [ 1, 2147483647, 3 ], "state": "backfill_wait" },
{ "pgid": "1.93", "up": [ 1, 4, 5], "acting": [ 1, 2, 3 ], "state": "backfill_wait" },
{ "pgid": "1.9990", "up": [ 1 ], "acting": [ 1, 2, 3 ], "state": "backfill_wait" },
{ "pgid": "1.9991", "up": [ 1, 2, 3 ], "acting": [ 1 ], "state": "backfill_wait" },
{ "pgid": "1.9992", "up": [ 1, 2, 3 ], "acting": [ 1, 4, 4 ], "state": "backfill_wait" },
{ "pgid": "1.9993", "up": [ 1, 4, 4 ], "acting": [ 1, 2, 3 ], "state": "backfill_wait" },
{ "pgid": "2.10", "up": [ 21, 22, 23 ], "acting": [ 21, 22, 24 ], "state": "active+remapped+backfilling" },
{ "pgid": "2.11", "up": [ 25, 26, 27 ], "acting": [ 25, 28, 27 ], "state": "active+remapped+backfill_wait" }
]
`
// PG 1.33 has a stale and invalid upmap entry like we've seen left
// behind by Ceph sometimes - both its from and to are in the up set.
osdDumpOut := `
{
"pg_upmap_items": [
{ "pgid": "1.33", "mappings": [ { "from": 0, "to": 10 } ] },
{ "pgid": "1.8f", "mappings": [ { "from": 37, "to": 36 } ] },
{ "pgid": "1.90", "mappings": [ { "from": 37, "to": 36 }, { "from": 31, "to": 30 } ] },
{ "pgid": "1.93", "mappings": [ { "from": 3, "to": 4 }, { "from": 2, "to": 5 } ] }
]
}
`
doRunPgQuery := func(pgid string) (string, error) {
switch pgid {
case "1.8c":
// Replicated case.
return `
{
"acting": [ 1, 2147483647, 3 ],
"info": { "pgid": "1.8c" },
"peer_info": [
{ "peer": "1", "incomplete": 0 },
{ "peer": "3", "incomplete": 0 },
{ "peer": "6", "incomplete": 1 },
{ "peer": "10", "incomplete": 0 }
]
}
`, nil
case "1.91":
// EC case.
return `
{
"acting": [ 33, 37, 2147483647 ],
"info": { "pgid": "1.91" },
"peer_info": [
{ "peer": "37(1)", "incomplete": 0, "stats": {"last_epoch_clean": 101} },
{ "peer": "36(1)", "incomplete": 1, "stats": {"last_epoch_clean": 100} },
{ "peer": "33(0)", "incomplete": 0, "stats": {"last_epoch_clean": 100} },
{ "peer": "30(2)", "incomplete": 1, "stats": {"last_epoch_clean": 100} },
{ "peer": "38(2)", "incomplete": 0, "stats": {"last_epoch_clean": 101} },
{ "peer": "39(2)", "incomplete": 0, "stats": {"last_epoch_clean": 99} }
]
}
`, nil
case "1.92":
// We're missing a replica.
return `
{
"acting": [ 1, 2147483647, 3 ],
"info": { "pgid": "1.92" },
"peer_info": [
{ "peer": "1", "incomplete": 0 },
{ "peer": "3", "incomplete": 0 },
{ "peer": "6", "incomplete": 1 }
]
}
`, nil
default:
return "", fmt.Errorf("unhandled pgid %s", pgid)
}
}
tests := []struct {
name string
source bool
target bool
exclude []int
include []int
excludePools []int
includePools []int
pgsIncluding []int
expected []expectedMapping
}{
{
name: "with exclude specified",
source: false,
target: false,
exclude: []int{21, 26},
include: []int{},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 6, To: 7, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 6, To: 10, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8f", Mappings: []mapping{{From: 30, To: 31, dirty: true}}},
{ID: "1.90", Mappings: []mapping{}},
{ID: "1.91", Mappings: []mapping{{From: 36, To: 37, dirty: true}, {From: 30, To: 38, dirty: true}}},
{ID: "1.93", Mappings: []mapping{}},
},
},
{
name: "with exclude, source, and target specified",
source: true,
target: true,
exclude: []int{21, 26},
include: []int{},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 6, To: 7, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 6, To: 10, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8f", Mappings: []mapping{{From: 30, To: 31, dirty: true}}},
{ID: "1.90", Mappings: []mapping{}},
{ID: "1.91", Mappings: []mapping{{From: 36, To: 37, dirty: true}, {From: 30, To: 38, dirty: true}}},
{ID: "1.93", Mappings: []mapping{}},
},
},
{
name: "with exclude and source specified",
source: true,
target: false,
exclude: []int{21, 26},
include: []int{},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 6, To: 7, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 6, To: 10, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8e", Mappings: []mapping{{From: 20, To: 21, dirty: true}}},
{ID: "1.8f", Mappings: []mapping{{From: 30, To: 31, dirty: true}}},
{ID: "1.90", Mappings: []mapping{}},
{ID: "1.91", Mappings: []mapping{{From: 36, To: 37, dirty: true}, {From: 30, To: 38, dirty: true}}},
{ID: "1.93", Mappings: []mapping{}},
},
},
{
name: "with exclude and target specified",
source: false,
target: true,
exclude: []int{21, 26},
include: []int{},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 6, To: 7, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 6, To: 10, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8e", Mappings: []mapping{{From: 26, To: 27, dirty: true}}},
{ID: "1.8f", Mappings: []mapping{{From: 30, To: 31, dirty: true}}},
{ID: "1.90", Mappings: []mapping{}},
{ID: "1.91", Mappings: []mapping{{From: 36, To: 37, dirty: true}, {From: 30, To: 38, dirty: true}}},
{ID: "1.93", Mappings: []mapping{}},
{ID: "2.11", Mappings: []mapping{{From: 26, To: 28, dirty: true}}},
},
},
{
name: "with include specified",
source: false,
target: false,
exclude: []int{},
include: []int{0, 26},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8e", Mappings: []mapping{{From: 26, To: 27, dirty: true}}},
{ID: "2.11", Mappings: []mapping{{From: 26, To: 28, dirty: true}}},
},
},
{
name: "with include and target specified",
source: false,
target: true,
exclude: []int{},
include: []int{1, 26},
expected: []expectedMapping{
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
},
},
{
name: "with include and source specified",
source: true,
target: false,
exclude: []int{},
include: []int{0, 26},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8e", Mappings: []mapping{{From: 26, To: 27, dirty: true}}},
{ID: "2.11", Mappings: []mapping{{From: 26, To: 28, dirty: true}}},
},
},
{
name: "with exclude and include specified",
source: false,
target: false,
exclude: []int{2},
include: []int{0, 26},
expected: []expectedMapping{
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8e", Mappings: []mapping{{From: 26, To: 27, dirty: true}}},
{ID: "2.11", Mappings: []mapping{{From: 26, To: 28, dirty: true}}},
},
},
{
name: "with exclude-pools specified",
excludePools: []int{1},
expected: []expectedMapping{
{ID: "2.11", Mappings: []mapping{{From: 26, To: 28, dirty: true}}},
},
},
{
name: "with include-pools specified",
includePools: []int{1},
expected: []expectedMapping{
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.46", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.47", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.8a", Mappings: []mapping{{From: 0, To: 1, dirty: true}}},
{ID: "1.8b", Mappings: []mapping{{From: 6, To: 7, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8c", Mappings: []mapping{{From: 6, To: 10, dirty: true}, {From: 0, To: 1, dirty: true}}},
{ID: "1.8e", Mappings: []mapping{{From: 26, To: 27, dirty: true}, {From: 20, To: 21, dirty: true}}},
{ID: "1.8f", Mappings: []mapping{{From: 30, To: 31, dirty: true}}},
{ID: "1.90", Mappings: []mapping{}},
{ID: "1.91", Mappings: []mapping{{From: 36, To: 37, dirty: true}, {From: 30, To: 38, dirty: true}}},
{ID: "1.93", Mappings: []mapping{}},
},
},
{
name: "with pgs-including specified",
pgsIncluding: []int{26},
expected: []expectedMapping{
{ID: "1.8e", Mappings: []mapping{{From: 26, To: 27, dirty: true}, {From: 20, To: 21, dirty: true}}},
{ID: "2.11", Mappings: []mapping{{From: 26, To: 28, dirty: true}}},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
setupTest(t)
defer teardownTest(t)
runOsdDump = func() (string, error) { return osdDumpOut, nil }
runPgDumpPgsBrief = func() (string, error) { return pgDumpOut, nil }
runPgQuery = doRunPgQuery
M = mustGetCurrentMappingState()
source := tt.source
target := tt.target
excludeOsds := make(map[int]struct{})
includeOsds := make(map[int]struct{})
excludePools := make(map[int]struct{})
includePools := make(map[int]struct{})
pgsIncludingOsds := make(map[int]struct{})
for _, v := range tt.exclude {
excludeOsds[v] = struct{}{}
}
for _, v := range tt.include {
includeOsds[v] = struct{}{}
}
for _, v := range tt.excludePools {
excludePools[v] = struct{}{}
}
for _, v := range tt.includePools {
includePools[v] = struct{}{}
}
for _, v := range tt.pgsIncluding {
pgsIncludingOsds[v] = struct{}{}
}
calcPgMappingsToUndoBackfill(true, source, target, excludeOsds, includeOsds, excludePools, includePools, pgsIncludingOsds)
validateDirtyMappings(t, tt.expected)
})
}
}
func TestCountCurrentBackfills(t *testing.T) {
setupTest(t)
defer teardownTest(t)
out := `
[
{ "pgid": "1.32", "up": [ 7, 5, 9], "acting": [ 7, 5, 9 ] },
{ "pgid": "1.33", "up": [ 6, 0, 10], "acting": [ 6, 10, 2 ] },
{ "pgid": "1.45", "up": [ 6, 3, 2], "acting": [ 6, 3, 2 ] },
{ "pgid": "1.46", "up": [ 4, 6, 0], "acting": [ 4, 6, 1 ] },
{ "pgid": "1.47", "up": [ 0, 11, 4], "acting": [ 2, 11, 4 ] },
{ "pgid": "1.89", "up": [ 10, 2, 8], "acting": [ 10, 2, 8 ] },
{ "pgid": "1.8a", "up": [ 3, 7, 0], "acting": [ 3, 7, 1 ] },
{ "pgid": "1.8b", "up": [ 3, 6, 0], "acting": [ 3, 7, 1 ] },
{ "pgid": "1.8c", "up": [ 3, 6, 0], "acting": [ 3, 7, 1 ],
"state": "active+recovery_wait+degraded+remapped" }
]
`
runPgDumpPgsBrief = func() (string, error) { return out, nil }
expectedSourceBackfillCounts := map[int]int{
1: 4,
2: 2,
7: 2,
}
expectedTargetBackfillCounts := map[int]int{
0: 6,
6: 2,
}
sourceBackfillCounts, targetBackfillCounts := countCurrentBackfills()
testEqual := func(expected, actual map[int]int) {
require.Len(t, actual, len(expected))
for k, v := range expected {
require.Contains(t, actual, k)
require.Equal(t, v, actual[k])
}
}
testEqual(expectedSourceBackfillCounts, sourceBackfillCounts)
testEqual(expectedTargetBackfillCounts, targetBackfillCounts)
}
func TestCalcPgMappingsToUndoUpmaps(t *testing.T) {
// Need an entry for each PG that will have mappings affected. Other
// than that, we want to fake backfills such that:
// sourceBackfillCounts := map[int]int{
// 1: 4,
// 2: 1,
// 3: 1,
// 5: 2,
// }
// targetBackfillCounts := map[int]int{
// 0: 6,
// 6: 2,
// 8: 2,
// }
pgDumpOut := `
[
{ "pgid": "1.33", "up": [ 100, 2, 3 ], "acting": [ 100, 2, 3 ] },
{ "pgid": "1.34", "up": [ 100, 2, 3 ], "acting": [ 100, 2, 3 ] },
{ "pgid": "1.46", "up": [ 100, 1, 3 ], "acting": [ 100, 1, 3 ] },
{ "pgid": "1.47", "up": [ 100, 2, 3 ], "acting": [ 100, 2, 3 ] },
{ "pgid": "1.48", "up": [ 101, 2, 3 ], "acting": [ 101, 2, 3 ] },
{ "pgid": "1.8a", "up": [ 102, 7, 1 ], "acting": [ 102, 7, 1 ] },
{ "pgid": "1.8b", "up": [ 102, 7, 9 ], "acting": [ 102, 7, 9 ] },
{ "pgid": "1.8c", "up": [ 102, 7, 5 ], "acting": [ 102, 7, 5 ] },
{ "pgid": "1.8d", "up": [ 103, 2, 5 ], "acting": [ 103, 2, 5 ] },
{ "pgid": "1.100", "up": [ 998, 999, 0 ], "acting": [ 998, 999, 1 ] },
{ "pgid": "1.101", "up": [ 998, 999, 0 ], "acting": [ 998, 999, 1 ] },
{ "pgid": "1.102", "up": [ 998, 999, 0 ], "acting": [ 998, 999, 1 ] },
{ "pgid": "1.103", "up": [ 998, 999, 0 ], "acting": [ 998, 999, 1 ] },
{ "pgid": "1.104", "up": [ 998, 999, 0 ], "acting": [ 998, 999, 2 ] },
{ "pgid": "1.105", "up": [ 998, 999, 0 ], "acting": [ 998, 999, 3 ] },
{ "pgid": "1.106", "up": [ 998, 999, 6 ], "acting": [ 998, 999, 5 ] },
{ "pgid": "1.107", "up": [ 998, 999, 6 ], "acting": [ 998, 999, 5 ] },
{ "pgid": "1.108", "up": [ 998, 999, 8 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.109", "up": [ 998, 999, 8 ], "acting": [ 998, 999, 1000 ] }
]
`
osdDumpOut := `
{
"pg_upmap_items": [
{ "pgid": "1.33", "mappings": [ { "from": 0, "to": 2 } ] },
{ "pgid": "1.34", "mappings": [ { "from": 0, "to": 3 } ] },
{ "pgid": "1.46", "mappings": [ { "from": 0, "to": 1 } ] },
{ "pgid": "1.47", "mappings": [ { "from": 0, "to": 2 } ] },
{ "pgid": "1.48", "mappings": [ { "from": 6, "to": 2 } ] },
{ "pgid": "1.8a", "mappings": [ { "from": 0, "to": 1 } ] },
{ "pgid": "1.8b", "mappings": [ { "from": 1, "to": 7 }, { "from": 0, "to": 9 } ] },
{ "pgid": "1.8c", "mappings": [ { "from": 6, "to": 5 } ] },
{ "pgid": "1.8d", "mappings": [ { "from": 8, "to": 5 } ] }
]
}
`
t.Run("source OSDs specified", func(t *testing.T) {
setupTest(t)
defer teardownTest(t)
runOsdDump = func() (string, error) { return osdDumpOut, nil }
runPgDumpPgsBrief = func() (string, error) { return pgDumpOut, nil }
maxSourceBackfills := 3
sourceOsds := []int{1, 2, 5, 7}
expected := []expectedMapping{
{ID: "1.33", Mappings: nil},
{ID: "1.48", Mappings: nil},
{ID: "1.8b", Mappings: []mapping{{From: 0, To: 9}}},
{ID: "1.8d", Mappings: nil},
}
M = mustGetCurrentMappingState()
M.bs.maxBackfillsFrom = maxSourceBackfills
calcPgMappingsToUndoUpmaps(sourceOsds, false)
validateDirtyMappings(t, expected)
})
t.Run("target OSDs specified", func(t *testing.T) {
setupTest(t)
defer teardownTest(t)
runOsdDump = func() (string, error) { return osdDumpOut, nil }
runPgDumpPgsBrief = func() (string, error) { return pgDumpOut, nil }
maxSourceBackfills := 2
targetOsds := []int{1, 6}
expected := []expectedMapping{
{ID: "1.48", Mappings: nil},
{ID: "1.8b", Mappings: []mapping{{From: 0, To: 9}}},
}
M = mustGetCurrentMappingState()
M.bs.maxBackfillsFrom = maxSourceBackfills
calcPgMappingsToUndoUpmaps(targetOsds, true)
validateDirtyMappings(t, expected)
})
t.Run("max-backfills specified", func(t *testing.T) {
setupTest(t)
defer teardownTest(t)
runOsdDump = func() (string, error) { return osdDumpOut, nil }
runPgDumpPgsBrief = func() (string, error) { return pgDumpOut, nil }
targetOsds := []int{0}
expected := []expectedMapping{
{ID: "1.33", Mappings: nil},
{ID: "1.34", Mappings: nil},
{ID: "1.8a", Mappings: nil},
}
M = mustGetCurrentMappingState()
M.bs.maxBackfillReservations = 9
M.bs.osd(100).maxBackfillReservations = 2
calcPgMappingsToUndoUpmaps(targetOsds, true)
validateDirtyMappings(t, expected)
})
}
func TestCalcPgMappingsToBalanceHost(t *testing.T) {
// Initial state:
// 0: 1.1, 1.2, 1.3, 1.4 (-> 1), 1.5
// 1: 1.6, 1.7, 1.8 (plus 1.4 coming from 0)
// 2: 1.9, 1.10
// 3: 1.11, 1.12, 1.13, 1.14
// 4: 1.15
pgDumpOut := `
[
{ "pgid": "1.1", "up": [ 0 ], "acting": [ 0 ] },
{ "pgid": "1.2", "up": [ 0 ], "acting": [ 0 ] },
{ "pgid": "1.3", "up": [ 0 ], "acting": [ 0 ] },
{ "pgid": "1.4", "up": [ 1 ], "acting": [ 0 ] },
{ "pgid": "1.5", "up": [ 0 ], "acting": [ 0 ] },
{ "pgid": "1.6", "up": [ 1 ], "acting": [ 1 ] },
{ "pgid": "1.7", "up": [ 1 ], "acting": [ 1 ] },
{ "pgid": "1.8", "up": [ 1 ], "acting": [ 1 ] },
{ "pgid": "1.9", "up": [ 2 ], "acting": [ 2 ] },
{ "pgid": "1.10", "up": [ 2 ], "acting": [ 2 ] },
{ "pgid": "1.11", "up": [ 3 ], "acting": [ 3 ] },
{ "pgid": "1.12", "up": [ 3 ], "acting": [ 3 ] },
{ "pgid": "1.13", "up": [ 3 ], "acting": [ 3 ] },
{ "pgid": "1.14", "up": [ 3 ], "acting": [ 3 ] },
{ "pgid": "1.15", "up": [ 4 ], "acting": [ 4 ] }
]
`
osdDumpOut := `
{
"osds": [
{ "osd": 0, "in": 1, "up": 1 },
{ "osd": 1, "in": 1, "up": 1 },
{ "osd": 2, "in": 1, "up": 1 },
{ "osd": 3, "in": 1, "up": 1 },
{ "osd": 4, "in": 1, "up": 1 },
{ "osd": 5, "in": 0, "up": 1 }
],
"pg_upmap_items": [
{ "pgid": "1.4", "mappings": [ { "from": 0, "to": 1 } ] },
{ "pgid": "1.5", "mappings": [ { "from": 2, "to": 0 } ] }
]
}
`
tests := []struct {
name string
maxBackfills int
targetSpread int
expected []expectedMapping
}{
{
name: "fully balance",
maxBackfills: 4,
targetSpread: 0,
expected: []expectedMapping{
{ID: "1.14", Mappings: []mapping{{From: 3, To: 4, dirty: true}}},
{ID: "1.5", Mappings: []mapping{{From: 2, To: 4, dirty: true}}},
{ID: "1.8", Mappings: []mapping{{From: 1, To: 2, dirty: true}}},
},
},
{
name: "no balance due to outstanding backfill",
maxBackfills: 1,
targetSpread: 0,
expected: []expectedMapping{},
},
{
name: "single movement",
maxBackfills: 2,
targetSpread: 0,
expected: []expectedMapping{
{ID: "1.5", Mappings: []mapping{{From: 2, To: 4, dirty: true}}},
},
},
{
name: "increased target spread",
maxBackfills: 4,
targetSpread: 2,
expected: []expectedMapping{
{ID: "1.5", Mappings: []mapping{{From: 2, To: 4, dirty: true}}},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
setupTest(t)
defer teardownTest(t)
runOsdDump = func() (string, error) { return osdDumpOut, nil }
runPgDumpPgsBrief = func() (string, error) { return pgDumpOut, nil }
M = mustGetCurrentMappingState()
calcPgMappingsToBalanceOsds(
[]int{0, 1, 2, 3, 4, 5},
tt.maxBackfills,
tt.targetSpread,
)
validateDirtyMappings(t, tt.expected)
})
}
}
func TestCalcPgMappingsToDrainOsd(t *testing.T) {
osdDumpOut := `
{
"pg_upmap_items": [
]
}
`
// 3 racks, 2 hosts/rack, 4 osds/host
osdTreeOut := `
{
"nodes": [
{
"children": [ -1, -2, -3 ],
"type": "root",
"name": "root1",
"id": -999
},
{
"children": [ -4, -5 ],
"type": "rack",
"name": "rack1",
"id": -1
},
{
"children": [ 0, 1, 2, 3 ],
"type": "host",
"name": "host1",
"id": -4
},
{ "type": "osd", "name": "osd.0", "id": 0 },
{ "type": "osd", "name": "osd.1", "id": 1 },
{ "type": "osd", "name": "osd.2", "id": 2 },
{ "type": "osd", "name": "osd.3", "id": 3 },
{
"children": [ 4, 5, 6, 7 ],
"type": "host",
"name": "host2",
"id": -5
},
{ "type": "osd", "name": "osd.4", "id": 4 },
{ "type": "osd", "name": "osd.5", "id": 5 },
{ "type": "osd", "name": "osd.6", "id": 6 },
{ "type": "osd", "name": "osd.7", "id": 7 },
{
"children": [ -6, -7 ],
"type": "rack",
"name": "rack2",
"id": -2
},
{
"children": [ 8, 9, 10, 11 ],
"type": "host",
"name": "host3",
"id": -6
},
{ "type": "osd", "name": "osd.8", "id": 8 },
{ "type": "osd", "name": "osd.9", "id": 9 },
{ "type": "osd", "name": "osd.10", "id": 10 },
{ "type": "osd", "name": "osd.11", "id": 11 },
{
"children": [ 12, 13, 14, 15 ],
"type": "host",
"name": "host4",
"id": -7
},
{ "type": "osd", "name": "osd.12", "id": 12 },
{ "type": "osd", "name": "osd.13", "id": 13 },
{ "type": "osd", "name": "osd.14", "id": 14 },
{ "type": "osd", "name": "osd.15", "id": 15 },
{
"children": [ -8, -9 ],
"type": "rack",
"name": "rack3",
"id": -3
},
{
"children": [ 16, 17, 18, 19 ],
"type": "host",
"name": "host3",
"id": -8
},
{ "type": "osd", "name": "osd.16", "id": 16 },
{ "type": "osd", "name": "osd.17", "id": 17 },
{ "type": "osd", "name": "osd.18", "id": 18 },
{ "type": "osd", "name": "osd.19", "id": 19 },
{
"children": [ 20, 21, 22, 23 ],
"type": "host",
"name": "host4",
"id": -9
},
{ "type": "osd", "name": "osd.20", "id": 20 },
{ "type": "osd", "name": "osd.21", "id": 21 },
{ "type": "osd", "name": "osd.22", "id": 22 },
{ "type": "osd", "name": "osd.23", "id": 23 }
]
}
`
// Need an entry for each PG that will have mappings affected. Other
// than that, we want to fake backfills such that:
// sourceBackfillCounts := map[int]int{
// 0: 2,
// }
// targetBackfillCounts := map[int]int{
// 1: 6,
// 2: 2,
// 3: 3,
// 5: 2,
// // Leave these at 0 so that they would be
// // preferred if allowMovementAcrossCrushType
// // and targetOsds allows.
// 4: 0,
// 8: 0,
// 12: 0,
// 16: 0,
// }
pgDumpOut := `
[
{ "pgid": "1.32", "up": [ 0, 8, 16 ], "acting": [ 0, 8, 16 ] },
{ "pgid": "1.33", "up": [ 0, 5, 16 ], "acting": [ 0, 5, 16 ] },
{ "pgid": "1.34", "up": [ 0, 5, 16 ], "acting": [ 0, 5, 16 ] },
{ "pgid": "1.35", "up": [ 0, 8, 16 ], "acting": [ 0, 8, 16 ] },
{ "pgid": "1.100", "up": [ 998, 999, 1 ], "acting": [ 998, 999, 0 ] },
{ "pgid": "1.101", "up": [ 998, 999, 1 ], "acting": [ 998, 999, 0 ] },
{ "pgid": "1.102", "up": [ 998, 999, 1 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.103", "up": [ 998, 999, 1 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.104", "up": [ 998, 999, 1 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.105", "up": [ 998, 999, 1 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.106", "up": [ 998, 999, 2 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.107", "up": [ 998, 999, 2 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.108", "up": [ 998, 999, 3 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.109", "up": [ 998, 999, 3 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.110", "up": [ 998, 999, 3 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.111", "up": [ 998, 999, 5 ], "acting": [ 998, 999, 1000 ] },
{ "pgid": "1.112", "up": [ 998, 999, 5 ], "acting": [ 998, 999, 1000 ] }
]
`
sourceOsd := 0
maxSourceBackfills := 5
tests := []struct {
name string
allowMovementAcrossCrushType string
targetOsds []int
expected []expectedMapping
}{
{
name: "movements stay in host (default)",
allowMovementAcrossCrushType: "",
targetOsds: []int{1, 2, 3, 4, 8, 12, 16},
expected: []expectedMapping{
{ID: "1.32", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.34", Mappings: []mapping{{From: 0, To: 3, dirty: true}}},
},
},
{
name: "movement allowed across hosts",
allowMovementAcrossCrushType: "host",
targetOsds: []int{1, 2, 3, 5, 8, 12, 16},
expected: []expectedMapping{
{ID: "1.32", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.33", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.35", Mappings: []mapping{{From: 0, To: 5, dirty: true}}},
},
},
// Movements allowed across racks - weird case enabled by PGs
// 33 and 34 having two copies in the same rack currently.
{
name: "movement allowed across racks",
allowMovementAcrossCrushType: "rack",
targetOsds: []int{1, 2, 3, 5, 8, 12, 16},
expected: []expectedMapping{
{ID: "1.32", Mappings: []mapping{{From: 0, To: 2, dirty: true}}},
{ID: "1.33", Mappings: []mapping{{From: 0, To: 8, dirty: true}}},
{ID: "1.34", Mappings: []mapping{{From: 0, To: 12, dirty: true}}},
},
},
{
name: "movements stay in host - no candidates",
allowMovementAcrossCrushType: "",
targetOsds: []int{4, 8, 12, 16},
expected: []expectedMapping{},
},
{
name: "movement allowed across hosts - no candidates",
allowMovementAcrossCrushType: "host",
targetOsds: []int{8, 12, 16},
expected: []expectedMapping{},
},
{
name: "movement allowed across racks - no candidates",
allowMovementAcrossCrushType: "rack",
targetOsds: []int{16},
expected: []expectedMapping{},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
setupTest(t)
defer teardownTest(t)
runOsdDump = func() (string, error) { return osdDumpOut, nil }
runOsdTree = func() (string, error) { return osdTreeOut, nil }
runPgDumpPgsBrief = func() (string, error) { return pgDumpOut, nil }
M = mustGetCurrentMappingState()
M.bs.maxBackfillsFrom = maxSourceBackfills
calcPgMappingsToDrainOsd(
tt.allowMovementAcrossCrushType,
[]int{sourceOsd},
sliceToMap(tt.targetOsds),
)
validateDirtyMappings(t, tt.expected)
})
}
}
func sliceToMap(slice []int) map[int]struct{} {
ret := make(map[int]struct{}, len(slice))
for _, item := range slice {
ret[item] = struct{}{}
}
return ret
}
type expectedMapping struct {
ID string
Mappings []mapping
}
func validateDirtyMappings(t *testing.T, expected []expectedMapping) {
puis := M.dirtyUpmapItems()
require.Len(t, puis, len(expected))
for i := range puis {
require.Equal(t, expected[i].ID, puis[i].PgID)
require.ElementsMatchf(t, expected[i].Mappings, puis[i].Mappings, "pg %s expected: %v got %v", expected[i].ID, expected[i].Mappings, puis[i].Mappings)
}
}
func TestParseMaxBackfillReservations(t *testing.T) {
setupTest(t)
defer teardownTest(t)
osdTreeOut := `
{
"nodes": [
{
"children": [ 0, 1, 2 ],
"type": "host",
"name": "host1",
"id": -4
},
{ "type": "osd", "name": "osd.0", "id": 0, "reweight": 0.123 },
{ "type": "osd", "name": "osd.1", "id": 1, "reweight": 1.00000 },
{ "type": "osd", "name": "osd.2", "id": 2, "reweight": 0 }
]
}
`
runOsdTree = func() (string, error) { return osdTreeOut, nil }
runPgDumpPgsBrief = func() (string, error) { return "{}", nil }
cmd := &cobra.Command{}
cmd.Flags().StringSlice("max-backfill-reservations", []string{"4", "bucket:host1:10", "133:6"}, "")
M = mustGetCurrentMappingState()
mustParseMaxBackfillReservations(cmd)
require.Equal(t, 10, M.bs.getMaxBackfillReservations(1))
// 'out' OSDs are excluded from osdspecs.
require.Equal(t, 4, M.bs.getMaxBackfillReservations(2))
require.Equal(t, 6, M.bs.getMaxBackfillReservations(133))
}
func TestDeviceClassFilter(t *testing.T) {
setupTest(t)
defer teardownTest(t)
osdTreeOut := `
{
"nodes": [
{ "id": -1, "name": "default", "type": "root", "children": [-4] },
{ "id": -4, "name": "datacenter1", "type": "datacenter", "children": [-3] },
{ "id": -3, "name": "rack1", "type": "rack", "children": [-31, -6, -5, -2] },
{ "id": -2, "name": "host1", "type": "host", "children": [2, 1, 0] },
{ "id": 0, "device_class": "green", "name": "osd.0", "type": "osd", "reweight": 1 },
{ "id": 1, "device_class": "red", "name": "osd.1", "type": "osd", "reweight": 1 },
{ "id": 2, "device_class": "blue", "name": "osd.2", "type": "osd", "reweight": 1 },
{ "id": -5, "name": "host2", "type": "host", "children": [6, 4, 3] },
{ "id": 3, "device_class": "green", "name": "osd.3", "type": "osd", "reweight": 1 },
{ "id": 4, "device_class": "red", "name": "osd.4", "type": "osd", "reweight": 1 },
{ "id": 6, "device_class": "blue", "name": "osd.6", "type": "osd", "reweight": 1 },
{ "id": -6, "name": "host3", "type": "host", "children": [8, 7, 5] },
{ "id": 5, "device_class": "green", "name": "osd.5", "type": "osd", "reweight": 1 },
{ "id": 7, "device_class": "red", "name": "osd.7", "type": "osd", "reweight": 1 },
{ "id": 8, "device_class": "blue", "name": "osd.8", "type": "osd", "reweight": 1 },
{ "id": -31, "name": "host4", "type": "host", "children": [11, 10, 9] },
{ "id": 9, "device_class": "green", "name": "osd.9", "type": "osd", "reweight": 1 },
{ "id": 10, "device_class": "red", "name": "osd.10", "type": "osd", "reweight": 1 },
{ "id": 11, "device_class": "blue", "name": "osd.11", "type": "osd", "reweight": 1 }
]
}
`
runOsdTree = func() (string, error) { return osdTreeOut, nil }
require.ElementsMatch(t, mustGetOsdsForBucket("rack1", "red"),
[]int{1, 4, 7, 10})
require.ElementsMatch(t, mustGetOsdsForBucket("rack1", "blue"),
[]int{2, 6, 8, 11})
require.ElementsMatch(t, mustGetOsdsForBucket("host1", "green"),
[]int{0})
require.ElementsMatch(t, mustGetOsdsForBucket("host4", ""),
[]int{9, 10, 11})
}
func setupTest(t *testing.T) {
// By default, report all pools we use as replicated; if there are EC
// tests, they can override this implementation.
osdPoolDetailout := `
[
{ "pool_id": 1, "pool_name": "replicated", "erasure_code_profile": "" },
{ "pool_id": 2, "pool_name": "rbd", "erasure_code_profile": "" }
]
`
runOsdPoolLs = func() (string, error) { return osdPoolDetailout, nil }
// We only need the upmap items from this; default to empty.
runOsdDump = func() (string, error) { return "{}", nil }
}
func teardownTest(t *testing.T) {
savedOsdDumpOut = nil
savedOsdPoolsDetails = nil
savedParsedOsdTree = nil
savedPgDumpPgsBrief = nil
runOsdDump = nil
runOsdPoolLs = nil
runOsdTree = nil
runPgDumpPgsBrief = nil
runPgQuery = nil
}