go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/appengine/tsmon/housekeeping.go (about)

     1  // Copyright 2016 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tsmon
    16  
    17  import (
    18  	"net/http"
    19  
    20  	"go.chromium.org/luci/appengine/gaemiddleware"
    21  	"go.chromium.org/luci/common/logging"
    22  	"go.chromium.org/luci/common/tsmon"
    23  	"go.chromium.org/luci/server/router"
    24  )
    25  
    26  // InstallHandlers installs HTTP handlers for tsmon routes.
    27  func InstallHandlers(r *router.Router, base router.MiddlewareChain) {
    28  	r.GET(
    29  		"/internal/cron/ts_mon/housekeeping",
    30  		base.Extend(gaemiddleware.RequireCron),
    31  		housekeepingHandler)
    32  }
    33  
    34  // housekeepingHandler performs task number assignments and runs global metric
    35  // callbacks.
    36  //
    37  // See DatastoreTaskNumAllocator and AssignTaskNumbers.
    38  func housekeepingHandler(c *router.Context) {
    39  	tsmon.GetState(c.Request.Context()).RunGlobalCallbacks(c.Request.Context())
    40  	if err := AssignTaskNumbers(c.Request.Context()); err != nil {
    41  		logging.WithError(err).Errorf(c.Request.Context(), "Task number assigner failed")
    42  		c.Writer.WriteHeader(http.StatusInternalServerError)
    43  	}
    44  }