Mercurial > gemma
view pkg/scheduler/boot.go @ 5520:05db984d3db1
Improve performance of bottleneck area calculation
Avoid buffer calculations by replacing them with simple distance comparisons
and calculate the boundary of the result geometry only once per iteration.
In some edge cases with very large numbers of iterations, this reduced
the runtime of a bottleneck import by a factor of more than twenty.
author | Tom Gottfried <tom@intevation.de> |
---|---|
date | Thu, 21 Oct 2021 19:50:39 +0200 |
parents | 5f47eeea988d |
children |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2018 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package scheduler import ( "context" "database/sql" "gemma.intevation.de/gemma/pkg/auth" "gemma.intevation.de/gemma/pkg/config" "gemma.intevation.de/gemma/pkg/log" ) const ( bootRole = "sys_admin" selectImportConfSQL = ` SELECT c.id, c.kind, a.v FROM import.import_configuration c JOIN import.import_configuration_attributes a ON c.id = a.import_configuration_id WHERE a.k = 'cron' AND a.v IS NOT NULL AND a.v <> '' ` scheduledIDsSQL = ` SELECT id FROM import.import_configuration WHERE username = $1 AND id IN ( SELECT import_configuration_id FROM import.import_configuration_attributes WHERE k = 'cron')` ) func init() { go boot() } // boot starts the scheduler with the configurations from // the database which have a schedule. func boot() { config.WaitReady() log.Infoln("booting scheduler from database.") ctx := context.Background() err := auth.RunAs( ctx, bootRole, func(conn *sql.Conn) error { rows, err := conn.QueryContext(ctx, selectImportConfSQL) if err != nil { return err } defer rows.Close() err = BootActions(func(ba *BoundAction) (bool, error) { if err != nil { return false, err } if !rows.Next() { return false, nil } var id int64 if err = rows.Scan( &id, &ba.Name, &ba.Spec, ); err != nil { return false, err } ba.CfgID = id return true, nil }) if err != nil { return err } return rows.Err() }) if err != nil { log.Errorf("%v\n", err) } } // ScheduledUserIDs returns the IDs with a schedule for a given user. func ScheduledUserIDs( ctx context.Context, conn *sql.Conn, user string, ) (map[int64]struct{}, error) { ids := map[int64]struct{}{} rows, err := conn.QueryContext(ctx, scheduledIDsSQL, user) if err != nil { return nil, nil } defer rows.Close() for rows.Next() { var id int64 if err := rows.Scan(&id); err != nil { return nil, err } ids[id] = struct{}{} } if err := rows.Err(); err != nil { return nil, err } return ids, nil }