Source code for openquake.server.db.actions

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2016-2020 GEM Foundation
# OpenQuake is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# OpenQuake is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU General Public License for more details.
# You should have received a copy of the GNU Affero General Public License
# along with OpenQuake.  If not, see <>.
import os
import psutil
import getpass
import operator
from datetime import datetime

from openquake.hazardlib import valid
from openquake.baselib import datastore, general
from openquake.calculators.export import export
from openquake.server import __file__ as server_path
from openquake.server.db.schema.upgrades import upgrader
from openquake.server.db import upgrade_manager
from openquake.server.dbapi import NotFound

WHEN calculation_mode LIKE '%risk'
OR calculation_mode LIKE '%bcr'
OR calculation_mode LIKE '%damage'
THEN 'risk'
ELSE 'hazard'
END AS job_type

[docs]def check_outdated(db): """ Check if the db is outdated, called before starting anything :param db: a :class:`openquake.server.dbapi.Db` instance """ return upgrader.check_versions(db.conn)
[docs]def reset_is_running(db): """ Reset the flag job.is_running to False. This is called when the DbServer is restarted: the idea is that it is restarted only when all computations are completed. :param db: a :class:`openquake.server.dbapi.Db` instance """ db("UPDATE job SET is_running=0, status='failed'" "WHERE is_running=1 OR status='executing'")
[docs]def set_status(db, job_id, status): """ Set the status 'created', 'executing', 'complete', 'failed', 'aborted' consistently with `is_running`. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: ID of the current job :param status: status string """ assert status in ( 'created', 'submitted', 'executing', 'complete', 'aborted', 'failed', 'deleted'), status if status in ('created', 'complete', 'failed', 'aborted', 'deleted'): is_running = 0 else: # 'executing' is_running = 1 if job_id < 0: rows = db('SELECT id FROM job ORDER BY id DESC LIMIT ?x', -job_id) if not rows: return 0 job_id = rows[-1].id cursor = db('UPDATE job SET status=?x, is_running=?x WHERE id=?x', status, is_running, job_id) return cursor.rowcount
[docs]def create_job(db, datadir): """ Create job for the given user, return it. :param db: a :class:`openquake.server.dbapi.Db` instance :param datadir: Data directory of the user who owns/started this job. :returns: the job ID """ calc_id = get_calc_id(db, datadir) + 1 job = dict(id=calc_id, is_running=1, description='just created', user_name=getpass.getuser(), calculation_mode='to be set', ds_calc_dir=os.path.join('%s/calc_%s' % (datadir, calc_id))) return db('INSERT INTO job (?S) VALUES (?X)', job.keys(), job.values()).lastrowid
[docs]def import_job(db, calc_id, calc_mode, description, user_name, status, hc_id, datadir): """ Insert a calculation inside the database, if calc_id is not taken """ job = dict(id=calc_id, calculation_mode=calc_mode, description=description, user_name=user_name, hazard_calculation_id=hc_id, is_running=0, status=status, ds_calc_dir=os.path.join('%s/calc_%s' % (datadir, calc_id))) db('INSERT INTO job (?S) VALUES (?X)', job.keys(), job.values())
[docs]def delete_uncompleted_calculations(db, user): """ Delete the uncompleted calculations of the given user. :param db: a :class:`openquake.server.dbapi.Db` instance :param user: user name """ db("UPDATE job SET status = 'deleted' " "WHERE user_name=?x AND status != 'complete'", user)
[docs]def get_job(db, job_id, username=None): """ If job_id is negative, return the last calculation of the current user, otherwise returns the job_id unchanged. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID (can be negative and can be nonexisting) :param username: an user name (if None, ignore it) :returns: a valid job or None if the original job ID was invalid """ job_id = int(job_id) if job_id > 0: dic = dict(id=job_id) if username: dic['user_name'] = username try: return db('SELECT * FROM job WHERE ?A', dic, one=True) except NotFound: return # else negative job_id if username: joblist = db('SELECT * FROM job WHERE user_name=?x ' "AND status != 'deleted' ORDER BY id DESC LIMIT ?x", username, -job_id) else: joblist = db("SELECT * FROM job WHERE status != 'deleted' " 'ORDER BY id DESC LIMIT ?x', -job_id) if not joblist: # no jobs return else: return joblist[-1]
[docs]def get_calc_id(db, datadir, job_id=None): """ Return the latest calc_id by looking both at the datastore and the database. :param db: a :class:`openquake.server.dbapi.Db` instance :param datadir: the directory containing the datastores :param job_id: a job ID; if None, returns the latest job ID """ calcs = datastore.get_calc_ids(datadir) calc_id = 0 if not calcs else calcs[-1] if job_id is None: try: job_id = db('SELECT seq FROM sqlite_sequence WHERE name="job"', scalar=True) except NotFound: job_id = 0 return max(calc_id, job_id)
[docs]def list_calculations(db, job_type, user_name): """ Yield a summary of past calculations. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_type: 'hazard' or 'risk' :param user_name: an user name """ jobs = db('SELECT *, %s FROM job WHERE user_name=?x ' "AND job_type=?x AND status != 'deleted' ORDER BY start_time" % JOB_TYPE, user_name, job_type) out = [] if len(jobs) == 0: out.append('None') else: out.append('job_id | status | start_time | ' ' description') for job in jobs: descr = job.description start_time = job.start_time out.append('%6d | %10s | %s | %s' % (, job.status, start_time, descr)) return out
[docs]def list_outputs(db, job_id, full=True): """ List the outputs for a given :class:`~openquake.server.db.models.OqJob`. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: ID of a calculation. :param bool full: If True produce a full listing, otherwise a short version """ outputs = get_outputs(db, job_id) out = [] if len(outputs) > 0: truncated = False out.append(' id | name') outs = sorted(outputs, key=operator.attrgetter('display_name')) for i, o in enumerate(outs): if not full and i >= 10: out.append(' ... | %d additional output(s)' % (len(outs) - 10)) truncated = True break out.append('%4d | %s' % (, o.display_name)) if truncated: out.append('Some outputs where not shown. You can see the full ' 'list with the command\n`oq engine --list-outputs`') return out
[docs]def get_outputs(db, job_id): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: ID of a calculation. :returns: A sequence of :class:`openquake.server.db.models.Output` objects """ return db('SELECT * FROM output WHERE oq_job_id=?x', job_id)
DISPLAY_NAME = { 'asset_risk': 'Exposure + Risk', 'gmf_data': 'Ground Motion Fields', 'damages-rlzs': 'Asset Damage Distributions', 'damages-stats': 'Asset Damage Statistics', 'avg_damages-rlzs': 'Average Asset Damages', 'avg_damages-stats': 'Average Asset Damages Statistics', 'dmg_by_event': 'Aggregate Event Damages', 'losses_by_event': 'Aggregate Event Losses', 'events': 'Events', 'avg_losses-rlzs': 'Average Asset Losses', 'avg_losses-stats': 'Average Asset Losses Statistics', 'loss_curves-rlzs': 'Asset Loss Curves', 'loss_curves-stats': 'Asset Loss Curves Statistics', 'loss_maps-rlzs': 'Asset Loss Maps', 'loss_maps-stats': 'Asset Loss Maps Statistics', 'agg_curves-rlzs': 'Aggregate Loss Curves', 'agg_curves-stats': 'Aggregate Loss Curves Statistics', 'agg_losses-rlzs': 'Aggregate Losses', 'agg_losses-stats': 'Aggregate Losses Statistics', 'agg_risk': 'Total Risk', 'agglosses': 'Aggregate Asset Losses', 'tot_losses-rlzs': 'Total Losses', 'tot_losses-stats': 'Total Losses Statistics', 'tot_curves-rlzs': 'Total Loss Curves', 'tot_curves-stats': 'Total Loss Curves Statistics', 'bcr-rlzs': 'Benefit Cost Ratios', 'bcr-stats': 'Benefit Cost Ratios Statistics', 'ruptures': 'Earthquake Ruptures', 'hcurves': 'Hazard Curves', 'hmaps': 'Hazard Maps', 'uhs': 'Uniform Hazard Spectra', 'disagg': 'Disaggregation Outputs', 'realizations': 'Realizations', 'src_loss_table': 'Source Loss Table', 'fullreport': 'Full Report', 'input': 'Input Files' } # sanity check, all display name keys must be exportable dic = general.groupby(export, operator.itemgetter(0)) for key in DISPLAY_NAME: assert key in dic, key
[docs]def create_outputs(db, job_id, keysize, ds_size): """ Build a correspondence between the outputs in the datastore and the ones in the database. Also, update the datastore size in the job table. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: ID of the current job :param keysize: a list of pairs (key, size_mb) :param ds_size: total datastore size in MB """ rows = [(job_id, DISPLAY_NAME.get(key, key), key, size) for key, size in keysize] db('UPDATE job SET size_mb=?x WHERE id=?x', ds_size, job_id) db.insert('output', 'oq_job_id display_name ds_key size_mb'.split(), rows)
[docs]def finish(db, job_id, status): """ Set the job columns `is_running`, `status`, and `stop_time`. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: ID of the current job :param status: a string such as 'successful' or 'failed' """ db('UPDATE job SET ?D WHERE id=?x', dict(is_running=False, status=status, stop_time=datetime.utcnow()), job_id)
[docs]def del_calc(db, job_id, user, force=False): """ Delete a calculation and all associated outputs, if possible. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: job ID, can be an integer or a string :param user: username :param force: delete even if there are dependent calculations :returns: None if everything went fine or an error message """ job_id = int(job_id) dependent = db( "SELECT id FROM job WHERE hazard_calculation_id=?x " "AND status != 'deleted'", job_id) job_ids = [ for dep in dependent] if not force and job_id in job_ids: # jobarray err = [] for jid in job_ids: res = del_calc(db, jid, user, force=True) if "error" in res: err.append(res["error"]) if err: return {"error": ' '.join(err)} else: return {"success": 'children_of_%s' % job_id} elif not force and dependent: return {"error": 'Cannot delete calculation %d: there ' 'are calculations ' 'dependent from it: %s' % (job_id, [ for j in dependent])} try: owner, path = db('SELECT user_name, ds_calc_dir FROM job WHERE id=?x', job_id, one=True) except NotFound: return {"error": 'Cannot delete calculation %d:' ' ID does not exist' % job_id} deleted = db("UPDATE job SET status='deleted' WHERE id=?x AND " "user_name=?x", job_id, user).rowcount if not deleted: return {"error": 'Cannot delete calculation %d: it belongs to ' '%s and you are %s' % (job_id, owner, user)} fname = path + ".hdf5" try: os.remove(fname) except OSError as exc: # permission error return {"error": 'Could not remove %s: %s' % (fname, exc)} return {"success": fname}
[docs]def log(db, job_id, timestamp, level, process, message): """ Write a log record in the database. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID :param timestamp: timestamp to store in the log record :param level: logging level to store in the log record :param process: process ID to store in the log record :param message: message to store in the log record """ db('INSERT INTO log (job_id, timestamp, level, process, message) ' 'VALUES (?X)', (job_id, timestamp, level, process, message))
[docs]def get_log(db, job_id): """ Extract the logs as a big string :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID """ logs = db('SELECT * FROM log WHERE job_id=?x ORDER BY id', job_id) out = [] for log in logs: time = str(log.timestamp)[:-4] # strip decimals out.append('[%s #%d %s] %s' % (time, job_id, log.level, log.message)) return out
[docs]def get_output(db, output_id): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param output_id: ID of an Output object :returns: (ds_key, calc_id, dirname) """ out = db('SELECT output.*, ds_calc_dir FROM output, job ' 'WHERE AND', output_id, one=True) return out.ds_key, out.oq_job_id, os.path.dirname(out.ds_calc_dir)
# used in make_report
[docs]def fetch(db, templ, *args): """ Run generic queries directly on the database. See the documentation of the dbapi module. :param db: a :class:`openquake.server.dbapi.Db` instance :param templ: a SQL query template :param args: arguments to pass to the template """ return db(templ, *args)
[docs]def get_path(db): """ :param db: a :class:`openquake.server.dbapi.Db` instance :returns: the full path to the dbserver codebase """ return server_path
[docs]def get_dbpath(db): """ :param db: a :class:`openquake.server.dbapi.Db` instance :returns: the path to the database file. """ rows = db('PRAGMA database_list') # return a row with fields (id, dbname, dbpath) return rows[0].file
# ########################## upgrade operations ########################## #
[docs]def what_if_I_upgrade(db, extract_scripts): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param extract_scripts: scripts to extract """ return upgrade_manager.what_if_I_upgrade( db.conn, extract_scripts=extract_scripts)
[docs]def db_version(db): """ :param db: a :class:`openquake.server.dbapi.Db` instance """ return upgrade_manager.db_version(db.conn)
[docs]def upgrade_db(db): """ :param db: a :class:`openquake.server.dbapi.Db` instance """ return upgrade_manager.upgrade_db(db.conn)
# ################### used in Web UI ######################## #
[docs]def calc_info(db, calc_id): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param calc_id: calculation ID :returns: dictionary of info about the given calculation """ job = db('SELECT * FROM job WHERE id=?x', calc_id, one=True) response_data = {} response_data['user_name'] = job.user_name response_data['status'] = job.status response_data['start_time'] = str(job.start_time) response_data['stop_time'] = str(job.stop_time) response_data['is_running'] = job.is_running return response_data
[docs]def get_calcs(db, request_get_dict, allowed_users, user_acl_on=False, id=None): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param request_get_dict: a dictionary :param allowed_users: a list of users :param user_acl_on: if True, returns only the calculations owned by the user or the group :param id: if given, extract only the specified calculation :returns: list of tuples (job_id, user_name, job_status, calculation_mode, job_is_running, job_description) """ # helper to get job+calculation data from the oq-engine database filterdict = {} if id is not None: filterdict['id'] = id if 'calculation_mode' in request_get_dict: filterdict['calculation_mode'] = request_get_dict.get( 'calculation_mode') if 'is_running' in request_get_dict: is_running = request_get_dict.get('is_running') filterdict['is_running'] = valid.boolean(is_running) if 'limit' in request_get_dict: limit = int(request_get_dict.get('limit')) else: limit = 100 if 'start_time' in request_get_dict: # assume an ISO date string time_filter = "start_time >= '%s'" % request_get_dict.get('start_time') else: time_filter = 1 if user_acl_on: users_filter = "user_name IN (?X)" else: users_filter = 1 jobs = db('SELECT * FROM job WHERE ?A AND %s AND %s ' "AND status != 'deleted' ORDER BY id DESC LIMIT %d" % (users_filter, time_filter, limit), filterdict, allowed_users) return [(, job.user_name, job.status, job.calculation_mode, job.is_running, job.description,, job.hazard_calculation_id, job.size_mb) for job in jobs]
[docs]def update_job(db, job_id, dic): """ Update the given calculation record. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID :param dic: a dictionary of valid field/values for the job table """ db('UPDATE job SET ?D WHERE id=?x', dic, job_id)
[docs]def update_parent_child(db, parent_child): """ Set hazard_calculation_id (parent) on a job_id (child) """ db('UPDATE job SET hazard_calculation_id=?x WHERE id=?x', *parent_child)
[docs]def get_log_slice(db, job_id, start, stop): """ Get a slice of the calculation log as a JSON list of rows :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID :param start: start of the slice :param stop: end of the slice (the last element is excluded) """ start = int(start) stop = int(stop) limit = -1 if stop == 0 else stop - start logs = db('SELECT * FROM log WHERE job_id=?x ' 'ORDER BY id LIMIT ?s OFFSET ?s', job_id, limit, start) # NB: .isoformat() returns a string like '2016-08-29T15:42:34.984756' # we consider only the first 22 characters, i.e. '2016-08-29T15:42:34.98' return [[log.timestamp.isoformat()[:22], log.level, log.process, log.message] for log in logs]
[docs]def get_log_size(db, job_id): """ Get a slice of the calculation log as a JSON list of rows. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID """ return db('SELECT count(id) FROM log WHERE job_id=?x', job_id, scalar=True)
[docs]def get_traceback(db, job_id): """ Return the traceback of the given calculation as a list of lines. The list is empty if the calculation was successful. :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID """ # strange: understand why the filter returns two lines or zero lines log = db("SELECT * FROM log WHERE job_id=?x AND level='CRITICAL'", job_id) if not log: return [] response_data = log[-1].message.splitlines() return response_data
[docs]def get_result(db, result_id): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param result_id: a result ID :returns: (job_id, job_status, datadir, datastore_key) """ job = db('SELECT job.*, ds_key FROM job, output WHERE ' ' AND', result_id, one=True) return (, job.status, job.user_name, os.path.dirname(job.ds_calc_dir), job.ds_key)
[docs]def get_results(db, job_id): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: a job ID :returns: (datadir, datastore_keys) """ ds_calc_dir = db('SELECT ds_calc_dir FROM job WHERE id=?x', job_id, scalar=True) datadir = os.path.dirname(ds_calc_dir) return datadir, [output.ds_key for output in get_outputs(db, job_id)]
# ############################### db commands ########################### #
[docs]class List(list): _fields = ()
[docs]def get_executing_jobs(db): """ :param db: a :class:`openquake.server.dbapi.Db` instance :returns: (id, pid, user_name, start_time) tuples """ fields = 'id,pid,user_name,start_time' running = List() running._fields = fields.split(',') query = ('''-- executing jobs SELECT %s FROM job WHERE status='executing' ORDER BY id desc''' % fields) rows = db(query) for r in rows: # if is 0 it means that such information # is not available in the database if and psutil.pid_exists( running.append(r) return running
[docs]def get_calc_ids(db, user): """ :returns: calculation IDs of the given user """ return [ for r in db('SELECT id FROM job WHERE user_name=?x', user)]
[docs]def get_longest_jobs(db): """ :param db: a :class:`openquake.server.dbapi.Db` instance :returns: (id, user_name, days) tuples """ query = '''-- completed jobs taking more than one hour SELECT id, user_name, julianday(stop_time) - julianday(start_time) AS days FROM job WHERE status='complete' AND days > 0.04 ORDER BY days desc''' return db(query)
[docs]def find(db, description): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param description: job description, used in a case-insensitive LIKE clause """ query = '''-- completed jobs SELECT id, description, user_name, (julianday(stop_time) - julianday(start_time)) * 24 AS hours FROM job WHERE status='complete' AND description LIKE lower(?x) ORDER BY julianday(stop_time) - julianday(start_time)''' return db(query, description.lower())
# checksums
[docs]def add_checksum(db, job_id, value): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: job ID :param value: value of the checksum (32 bit integer) """ return db('INSERT INTO checksum VALUES (?x, ?x)', job_id, value).lastrowid
[docs]def update_job_checksum(db, job_id, checksum): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: job ID :param checksum: the checksum (32 bit integer) """ db('UPDATE checksum SET job_id=?x WHERE hazard_checksum=?x', job_id, checksum)
[docs]def get_checksum_from_job(db, job_id): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: job ID :returns: the value of the checksum or 0 """ checksum = db('SELECT hazard_checksum FROM checksum WHERE job_id=?x', job_id, scalar=True) return checksum
[docs]def get_job_from_checksum(db, checksum): """ :param db: a :class:`openquake.server.dbapi.Db` instance :param job_id: job ID :returns: the job associated to the checksum or None """ # there is an UNIQUE constraint both on hazard_checksum and job_id jobs = db('SELECT * FROM job WHERE id = (' 'SELECT job_id FROM checksum WHERE hazard_checksum=?x)', checksum) # 0 or 1 jobs if not jobs: return return jobs[0]