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cb7d078c1d
* drivers/raw_exec: enable configuring raw_exec task to have no memory limit This PR makes it possible to configure a raw_exec task to not have an upper memory limit, which is how the driver would behave pre-1.7. This is done by setting memory_max = -1. The cluster (or node pool) must have memory oversubscription enabled. * cl: add cl
69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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//go:build linux
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package executor
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import (
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"fmt"
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"testing"
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"github.com/hashicorp/nomad/nomad/structs"
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"github.com/hashicorp/nomad/plugins/drivers"
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"github.com/shoenig/test/must"
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)
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func Test_computeMemory(t *testing.T) {
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cases := []struct {
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memory int64
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memoryMax int64
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expSoft int64
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expHard int64
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}{
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{
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// typical case; only 'memory' is set and that is used as the hard
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// memory limit
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memory: 100,
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memoryMax: 0,
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expSoft: 0,
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expHard: mbToBytes(100),
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},
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{
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// oversub case; both 'memory' and 'memory_max' are set and used as
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// the soft and hard memory limits
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memory: 100,
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memoryMax: 200,
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expSoft: mbToBytes(100),
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expHard: mbToBytes(200),
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},
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{
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// special oversub case; 'memory' is set and 'memory_max' is set to
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// -1; which indicates there should be no hard limit (i.e. -1 / max)
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memory: 100,
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memoryMax: memoryNoLimit,
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expSoft: mbToBytes(100),
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expHard: memoryNoLimit,
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},
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}
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for _, tc := range cases {
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name := fmt.Sprintf("(%d,%d)", tc.memory, tc.memoryMax)
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t.Run(name, func(t *testing.T) {
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command := &ExecCommand{
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Resources: &drivers.Resources{
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NomadResources: &structs.AllocatedTaskResources{
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Memory: structs.AllocatedMemoryResources{
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MemoryMB: tc.memory,
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MemoryMaxMB: tc.memoryMax,
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},
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},
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},
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}
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hard, soft := (*UniversalExecutor)(nil).computeMemory(command)
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must.Eq(t, tc.expSoft, soft)
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must.Eq(t, tc.expHard, hard)
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})
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}
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}
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