This is an automated cherry-pick of pingcap#59358

Signed-off-by: ti-chi-bot <[email protected]>

Author: lcwangchao

metrics/grafana/tidb.json

@@ -19054,7 +19054,7 @@
           "targets": [
             {
               "exemplar": true,
-              "expr": "avg(tidb_server_ttl_watermark_delay{k8s_cluster=\"$k8s_cluster\",tidb_cluster=\"$tidb_cluster\", type=\"schedule\"}) by (type, name)",
+              "expr": "max(tidb_server_ttl_watermark_delay{k8s_cluster=\"$k8s_cluster\",tidb_cluster=\"$tidb_cluster\", type=\"schedule\"}) by (type, name)",
               "interval": "",
               "legendFormat": "{{ name }}",
               "queryType": "randomWalk",

pkg/ttl/ttlworker/BUILD.bazel

@@ -0,0 +1,124 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+go_library(
+    name = "ttlworker",
+    srcs = [
+        "config.go",
+        "del.go",
+        "job.go",
+        "job_manager.go",
+        "scan.go",
+        "session.go",
+        "task_manager.go",
+        "timer.go",
+        "timer_sync.go",
+        "worker.go",
+    ],
+    importpath = "github.com/pingcap/tidb/pkg/ttl/ttlworker",
+    visibility = ["//visibility:public"],
+    deps = [
+        "//pkg/infoschema",
+        "//pkg/infoschema/context",
+        "//pkg/kv",
+        "//pkg/meta/model",
+        "//pkg/metrics",
+        "//pkg/parser/ast",
+        "//pkg/parser/terror",
+        "//pkg/sessionctx",
+        "//pkg/sessionctx/vardef",
+        "//pkg/store/driver/error",
+        "//pkg/timer/api",
+        "//pkg/timer/runtime",
+        "//pkg/timer/tablestore",
+        "//pkg/ttl/cache",
+        "//pkg/ttl/client",
+        "//pkg/ttl/metrics",
+        "//pkg/ttl/session",
+        "//pkg/ttl/sqlbuilder",
+        "//pkg/types",
+        "//pkg/util",
+        "//pkg/util/chunk",
+        "//pkg/util/intest",
+        "//pkg/util/logutil",
+        "//pkg/util/sqlexec",
+        "//pkg/util/timeutil",
+        "@com_github_pingcap_errors//:errors",
+        "@com_github_pingcap_failpoint//:failpoint",
+        "@com_github_tikv_client_go_v2//tikv",
+        "@com_github_tikv_client_go_v2//tikvrpc",
+        "@io_etcd_go_etcd_client_v3//:client",
+        "@org_golang_x_exp//maps",
+        "@org_golang_x_time//rate",
+        "@org_uber_go_multierr//:multierr",
+        "@org_uber_go_zap//:zap",
+    ],
+)
+
+go_test(
+    name = "ttlworker_test",
+    timeout = "moderate",
+    srcs = [
+        "del_test.go",
+        "job_manager_integration_test.go",
+        "job_manager_test.go",
+        "scan_integration_test.go",
+        "scan_test.go",
+        "session_integration_test.go",
+        "session_test.go",
+        "task_manager_integration_test.go",
+        "task_manager_test.go",
+        "timer_sync_test.go",
+        "timer_test.go",
+    ],
+    embed = [":ttlworker"],
+    flaky = True,
+    race = "on",
+    shard_count = 50,
+    deps = [
+        "//pkg/domain",
+        "//pkg/infoschema",
+        "//pkg/infoschema/context",
+        "//pkg/kv",
+        "//pkg/meta/model",
+        "//pkg/metrics",
+        "//pkg/parser/ast",
+        "//pkg/parser/mysql",
+        "//pkg/sessionctx",
+        "//pkg/sessionctx/vardef",
+        "//pkg/sessionctx/variable",
+        "//pkg/statistics",
+        "//pkg/store/mockstore",
+        "//pkg/testkit",
+        "//pkg/testkit/testfailpoint",
+        "//pkg/testkit/testflag",
+        "//pkg/timer/api",
+        "//pkg/timer/tablestore",
+        "//pkg/ttl/cache",
+        "//pkg/ttl/client",
+        "//pkg/ttl/metrics",
+        "//pkg/ttl/session",
+        "//pkg/types",
+        "//pkg/util",
+        "//pkg/util/chunk",
+        "//pkg/util/logutil",
+        "//pkg/util/mock",
+        "//pkg/util/skip",
+        "//pkg/util/sqlexec",
+        "//pkg/util/timeutil",
+        "@com_github_google_uuid//:uuid",
+        "@com_github_ngaut_pools//:pools",
+        "@com_github_pingcap_errors//:errors",
+        "@com_github_pingcap_failpoint//:failpoint",
+        "@com_github_prometheus_client_golang//prometheus",
+        "@com_github_prometheus_client_model//go",
+        "@com_github_stretchr_testify//assert",
+        "@com_github_stretchr_testify//mock",
+        "@com_github_stretchr_testify//require",
+        "@com_github_tikv_client_go_v2//testutils",
+        "@com_github_tikv_client_go_v2//tikv",
+        "@com_github_tikv_client_go_v2//tikvrpc",
+        "@org_golang_x_time//rate",
+        "@org_uber_go_atomic//:atomic",
+        "@org_uber_go_zap//:zap",
+    ],
+)