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scyllacluster_sysctl.go
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scyllacluster_sysctl.go
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// Copyright (C) 2021 ScyllaDB
package scyllacluster
import (
"context"
"fmt"
g "github.com/onsi/ginkgo/v2"
o "github.com/onsi/gomega"
"github.com/scylladb/scylla-operator/pkg/naming"
scyllafixture "github.com/scylladb/scylla-operator/test/e2e/fixture/scylla"
"github.com/scylladb/scylla-operator/test/e2e/framework"
"github.com/scylladb/scylla-operator/test/e2e/tools"
"github.com/scylladb/scylla-operator/test/e2e/utils"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
var _ = g.Describe("ScyllaCluster sysctl", func() {
defer g.GinkgoRecover()
f := framework.NewFramework("scyllacluster")
g.It("should set container sysctl", func() {
ctx, cancel := context.WithTimeout(context.Background(), testTimeout)
defer cancel()
sc := scyllafixture.BasicScyllaCluster.ReadOrFail()
fsAIOMaxNRKey := "fs.aio-max-nr"
fsAIOMaxNRValue := 2424242 // A unique value.
o.Expect(sc.Spec.Sysctls).To(o.BeEmpty())
sc.Spec.Sysctls = []string{fmt.Sprintf("%s=%d", fsAIOMaxNRKey, fsAIOMaxNRValue)}
framework.By("Creating a ScyllaCluster")
sc, err := f.ScyllaClient().ScyllaV1().ScyllaClusters(f.Namespace()).Create(ctx, sc, metav1.CreateOptions{})
o.Expect(err).NotTo(o.HaveOccurred())
framework.By("Waiting for the ScyllaCluster to rollout (RV=%s)", sc.ResourceVersion)
waitCtx1, waitCtx1Cancel := utils.ContextForRollout(ctx, sc)
defer waitCtx1Cancel()
sc, err = utils.WaitForScyllaClusterState(waitCtx1, f.ScyllaClient().ScyllaV1(), sc.Namespace, sc.Name, utils.WaitForStateOptions{}, utils.IsScyllaClusterRolledOut)
o.Expect(err).NotTo(o.HaveOccurred())
verifyScyllaCluster(ctx, f.KubeClient(), sc)
hosts := getScyllaHostsAndWaitForFullQuorum(ctx, f.KubeClient().CoreV1(), sc)
o.Expect(hosts).To(o.HaveLen(1))
di := insertAndVerifyCQLData(ctx, hosts)
defer di.Close()
framework.By("Checking the sysctl value")
podName := fmt.Sprintf("%s-0", naming.StatefulSetNameForRack(sc.Spec.Datacenter.Racks[0], sc))
stdout, stderr, err := tools.PodExec(
f.KubeClient().CoreV1().RESTClient(),
f.ClientConfig(),
f.Namespace(),
podName,
"scylla",
[]string{"/usr/sbin/sysctl", "--values", fsAIOMaxNRKey},
nil,
)
o.Expect(err).NotTo(o.HaveOccurred())
o.Expect(stderr).To(o.BeEmpty())
o.Expect(stdout).To(o.Equal(fmt.Sprintf("%d\n", fsAIOMaxNRValue)))
})
})