| # Copyright (c) 2014 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import re, os, sys, time, random |
| |
| import common |
| from autotest_lib.client.common_lib import global_config |
| from autotest_lib.frontend import database_settings_helper |
| from autotest_lib.tko import utils |
| |
| |
| class MySQLTooManyRows(Exception): |
| pass |
| |
| |
| class db_sql(object): |
| def __init__(self, debug=False, autocommit=True, host=None, |
| database=None, user=None, password=None): |
| self.debug = debug |
| self.autocommit = autocommit |
| self._load_config(host, database, user, password) |
| |
| self.con = None |
| self._init_db() |
| |
| # if not present, insert statuses |
| self.status_idx = {} |
| self.status_word = {} |
| status_rows = self.select('status_idx, word', 'tko_status', None) |
| for s in status_rows: |
| self.status_idx[s[1]] = s[0] |
| self.status_word[s[0]] = s[1] |
| |
| machine_map = os.path.join(os.path.dirname(__file__), |
| 'machines') |
| if os.path.exists(machine_map): |
| self.machine_map = machine_map |
| else: |
| self.machine_map = None |
| self.machine_group = {} |
| |
| |
| def _load_config(self, host, database, user, password): |
| """Loads configuration settings required to connect to the database. |
| |
| This will try to connect to use the settings prefixed with global_db_. |
| If they do not exist, they un-prefixed settings will be used. |
| |
| If parameters are supplied, these will be taken instead of the values |
| in global_config. |
| |
| @param host: If set, this host will be used, if not, the host will be |
| retrieved from global_config. |
| @param database: If set, this database will be used, if not, the |
| database will be retrieved from global_config. |
| @param user: If set, this user will be used, if not, the |
| user will be retrieved from global_config. |
| @param password: If set, this password will be used, if not, the |
| password will be retrieved from global_config. |
| """ |
| database_settings = database_settings_helper.get_global_db_config() |
| |
| # grab the host, database |
| self.host = host or database_settings['HOST'] |
| self.database = database or database_settings['NAME'] |
| |
| # grab the user and password |
| self.user = user or database_settings['USER'] |
| self.password = password or database_settings['PASSWORD'] |
| |
| # grab the timeout configuration |
| self.query_timeout =( |
| database_settings.get('OPTIONS', {}).get('timeout', 3600)) |
| |
| # Using fallback to non-global in order to work without configuration |
| # overhead on non-shard instances. |
| get_value = global_config.global_config.get_config_value_with_fallback |
| self.min_delay = get_value("AUTOTEST_WEB", "global_db_min_retry_delay", |
| "min_retry_delay", type=int, default=20) |
| self.max_delay = get_value("AUTOTEST_WEB", "global_db_max_retry_delay", |
| "max_retry_delay", type=int, default=60) |
| |
| # TODO(beeps): Move this to django settings once we have routers. |
| # On test instances mysql connects through a different port. No point |
| # piping this through our entire infrastructure when it is only really |
| # used for testing; Ideally we would specify this through django |
| # settings and default it to the empty string so django will figure out |
| # the default based on the database backend (eg: mysql, 3306), but until |
| # we have database routers in place any django settings will apply to |
| # both tko and afe. |
| # The intended use of this port is to allow a testing shard vm to |
| # update the master vm's database with test results. Specifying |
| # and empty string will fallback to not even specifying the port |
| # to the backend in tko/db.py. Unfortunately this means retries |
| # won't work on the test cluster till we've migrated to routers. |
| self.port = global_config.global_config.get_config_value( |
| "AUTOTEST_WEB", "global_db_port", type=str, default='') |
| |
| |
| def _init_db(self): |
| # make sure we clean up any existing connection |
| if self.con: |
| self.con.close() |
| self.con = None |
| |
| # create the db connection and cursor |
| self.con = self.connect(self.host, self.database, |
| self.user, self.password, self.port) |
| self.cur = self.con.cursor() |
| |
| |
| def _random_delay(self): |
| delay = random.randint(self.min_delay, self.max_delay) |
| time.sleep(delay) |
| |
| |
| def run_with_retry(self, function, *args, **dargs): |
| """Call function(*args, **dargs) until either it passes |
| without an operational error, or a timeout is reached. |
| This will re-connect to the database, so it is NOT safe |
| to use this inside of a database transaction. |
| |
| It can be safely used with transactions, but the |
| transaction start & end must be completely contained |
| within the call to 'function'.""" |
| OperationalError = _get_error_class("OperationalError") |
| |
| success = False |
| start_time = time.time() |
| while not success: |
| try: |
| result = function(*args, **dargs) |
| except OperationalError, e: |
| self._log_operational_error(e) |
| stop_time = time.time() |
| elapsed_time = stop_time - start_time |
| if elapsed_time > self.query_timeout: |
| raise |
| else: |
| try: |
| self._random_delay() |
| self._init_db() |
| except OperationalError, e: |
| self._log_operational_error(e) |
| else: |
| success = True |
| return result |
| |
| |
| def _log_operational_error(self, e): |
| msg = ("%s: An operational error occured during a database " |
| "operation: %s" % (time.strftime("%X %x"), str(e))) |
| print >> sys.stderr, msg |
| sys.stderr.flush() # we want these msgs to show up immediately |
| |
| |
| def dprint(self, value): |
| if self.debug: |
| sys.stdout.write('SQL: ' + str(value) + '\n') |
| |
| |
| def commit(self): |
| self.con.commit() |
| |
| |
| def rollback(self): |
| self.con.rollback() |
| |
| |
| def get_last_autonumber_value(self): |
| self.cur.execute('SELECT LAST_INSERT_ID()', []) |
| return self.cur.fetchall()[0][0] |
| |
| |
| def _quote(self, field): |
| return '`%s`' % field |
| |
| |
| def _where_clause(self, where): |
| if not where: |
| return '', [] |
| |
| if isinstance(where, dict): |
| # key/value pairs (which should be equal, or None for null) |
| keys, values = [], [] |
| for field, value in where.iteritems(): |
| quoted_field = self._quote(field) |
| if value is None: |
| keys.append(quoted_field + ' is null') |
| else: |
| keys.append(quoted_field + '=%s') |
| values.append(value) |
| where_clause = ' and '.join(keys) |
| elif isinstance(where, basestring): |
| # the exact string |
| where_clause = where |
| values = [] |
| elif isinstance(where, tuple): |
| # preformatted where clause + values |
| where_clause, values = where |
| assert where_clause |
| else: |
| raise ValueError('Invalid "where" value: %r' % where) |
| |
| return ' WHERE ' + where_clause, values |
| |
| |
| |
| def select(self, fields, table, where, distinct=False, group_by=None, |
| max_rows=None): |
| """\ |
| This selects all the fields requested from a |
| specific table with a particular where clause. |
| The where clause can either be a dictionary of |
| field=value pairs, a string, or a tuple of (string, |
| a list of values). The last option is what you |
| should use when accepting user input as it'll |
| protect you against sql injection attacks (if |
| all user data is placed in the array rather than |
| the raw SQL). |
| |
| For example: |
| where = ("a = %s AND b = %s", ['val', 'val']) |
| is better than |
| where = "a = 'val' AND b = 'val'" |
| """ |
| cmd = ['select'] |
| if distinct: |
| cmd.append('distinct') |
| cmd += [fields, 'from', table] |
| |
| where_clause, values = self._where_clause(where) |
| cmd.append(where_clause) |
| |
| if group_by: |
| cmd.append(' GROUP BY ' + group_by) |
| |
| self.dprint('%s %s' % (' '.join(cmd), values)) |
| |
| # create a re-runable function for executing the query |
| def exec_sql(): |
| sql = ' '.join(cmd) |
| numRec = self.cur.execute(sql, values) |
| if max_rows is not None and numRec > max_rows: |
| msg = 'Exceeded allowed number of records' |
| raise MySQLTooManyRows(msg) |
| return self.cur.fetchall() |
| |
| # run the query, re-trying after operational errors |
| if self.autocommit: |
| return self.run_with_retry(exec_sql) |
| else: |
| return exec_sql() |
| |
| |
| def select_sql(self, fields, table, sql, values): |
| """\ |
| select fields from table "sql" |
| """ |
| cmd = 'select %s from %s %s' % (fields, table, sql) |
| self.dprint(cmd) |
| |
| # create a -re-runable function for executing the query |
| def exec_sql(): |
| self.cur.execute(cmd, values) |
| return self.cur.fetchall() |
| |
| # run the query, re-trying after operational errors |
| if self.autocommit: |
| return self.run_with_retry(exec_sql) |
| else: |
| return exec_sql() |
| |
| |
| def _exec_sql_with_commit(self, sql, values, commit): |
| if self.autocommit: |
| # re-run the query until it succeeds |
| def exec_sql(): |
| self.cur.execute(sql, values) |
| self.con.commit() |
| self.run_with_retry(exec_sql) |
| else: |
| # take one shot at running the query |
| self.cur.execute(sql, values) |
| if commit: |
| self.con.commit() |
| |
| |
| def insert(self, table, data, commit=None): |
| """\ |
| 'insert into table (keys) values (%s ... %s)', values |
| |
| data: |
| dictionary of fields and data |
| """ |
| fields = data.keys() |
| refs = ['%s' for field in fields] |
| values = [data[field] for field in fields] |
| cmd = ('insert into %s (%s) values (%s)' % |
| (table, ','.join(self._quote(field) for field in fields), |
| ','.join(refs))) |
| self.dprint('%s %s' % (cmd, values)) |
| |
| self._exec_sql_with_commit(cmd, values, commit) |
| |
| |
| def delete(self, table, where, commit = None): |
| cmd = ['delete from', table] |
| if commit is None: |
| commit = self.autocommit |
| where_clause, values = self._where_clause(where) |
| cmd.append(where_clause) |
| sql = ' '.join(cmd) |
| self.dprint('%s %s' % (sql, values)) |
| |
| self._exec_sql_with_commit(sql, values, commit) |
| |
| |
| def update(self, table, data, where, commit = None): |
| """\ |
| 'update table set data values (%s ... %s) where ...' |
| |
| data: |
| dictionary of fields and data |
| """ |
| if commit is None: |
| commit = self.autocommit |
| cmd = 'update %s ' % table |
| fields = data.keys() |
| data_refs = [self._quote(field) + '=%s' for field in fields] |
| data_values = [data[field] for field in fields] |
| cmd += ' set ' + ', '.join(data_refs) |
| |
| where_clause, where_values = self._where_clause(where) |
| cmd += where_clause |
| |
| values = data_values + where_values |
| self.dprint('%s %s' % (cmd, values)) |
| |
| self._exec_sql_with_commit(cmd, values, commit) |
| |
| |
| def delete_job(self, tag, commit = None): |
| job_idx = self.find_job(tag) |
| for test_idx in self.find_tests(job_idx): |
| where = {'test_idx' : test_idx} |
| self.delete('tko_iteration_result', where) |
| self.delete('tko_iteration_perf_value', where) |
| self.delete('tko_iteration_attributes', where) |
| self.delete('tko_test_attributes', where) |
| self.delete('tko_test_labels_tests', {'test_id': test_idx}) |
| where = {'job_idx' : job_idx} |
| self.delete('tko_tests', where) |
| self.delete('tko_jobs', where) |
| |
| |
| def insert_job(self, tag, job, commit = None): |
| job.machine_idx = self.lookup_machine(job.machine) |
| if not job.machine_idx: |
| job.machine_idx = self.insert_machine(job, commit=commit) |
| else: |
| self.update_machine_information(job, commit=commit) |
| |
| afe_job_id = utils.get_afe_job_id(tag) |
| |
| data = {'tag':tag, |
| 'label': job.label, |
| 'username': job.user, |
| 'machine_idx': job.machine_idx, |
| 'queued_time': job.queued_time, |
| 'started_time': job.started_time, |
| 'finished_time': job.finished_time, |
| 'afe_job_id': afe_job_id} |
| is_update = hasattr(job, 'index') |
| if is_update: |
| self.update('tko_jobs', data, {'job_idx': job.index}, commit=commit) |
| else: |
| self.insert('tko_jobs', data, commit=commit) |
| job.index = self.get_last_autonumber_value() |
| self.update_job_keyvals(job, commit=commit) |
| for test in job.tests: |
| self.insert_test(job, test, commit=commit) |
| |
| |
| def update_job_keyvals(self, job, commit=None): |
| for key, value in job.keyval_dict.iteritems(): |
| where = {'job_id': job.index, 'key': key} |
| data = dict(where, value=value) |
| exists = self.select('id', 'tko_job_keyvals', where=where) |
| |
| if exists: |
| self.update('tko_job_keyvals', data, where=where, commit=commit) |
| else: |
| self.insert('tko_job_keyvals', data, commit=commit) |
| |
| |
| def insert_test(self, job, test, commit = None): |
| kver = self.insert_kernel(test.kernel, commit=commit) |
| data = {'job_idx':job.index, 'test':test.testname, |
| 'subdir':test.subdir, 'kernel_idx':kver, |
| 'status':self.status_idx[test.status], |
| 'reason':test.reason, 'machine_idx':job.machine_idx, |
| 'started_time': test.started_time, |
| 'finished_time':test.finished_time} |
| is_update = hasattr(test, "test_idx") |
| if is_update: |
| test_idx = test.test_idx |
| self.update('tko_tests', data, |
| {'test_idx': test_idx}, commit=commit) |
| where = {'test_idx': test_idx} |
| self.delete('tko_iteration_result', where) |
| self.delete('tko_iteration_perf_value', where) |
| self.delete('tko_iteration_attributes', where) |
| where['user_created'] = 0 |
| self.delete('tko_test_attributes', where) |
| else: |
| self.insert('tko_tests', data, commit=commit) |
| test_idx = test.test_idx = self.get_last_autonumber_value() |
| data = {'test_idx': test_idx} |
| |
| for i in test.iterations: |
| data['iteration'] = i.index |
| for key, value in i.attr_keyval.iteritems(): |
| data['attribute'] = key |
| data['value'] = value |
| self.insert('tko_iteration_attributes', data, |
| commit=commit) |
| for key, value in i.perf_keyval.iteritems(): |
| data['attribute'] = key |
| data['value'] = value |
| self.insert('tko_iteration_result', data, |
| commit=commit) |
| |
| data = {'test_idx': test_idx} |
| for i in test.perf_values: |
| data['iteration'] = i.index |
| for perf_dict in i.perf_measurements: |
| data['description'] = perf_dict['description'] |
| data['value'] = perf_dict['value'] |
| data['stddev'] = perf_dict['stddev'] |
| data['units'] = perf_dict['units'] |
| # TODO(fdeng): In db, higher_is_better doesn't allow null, |
| # This is a workaround to avoid altering the |
| # table (very expensive) while still allows test to send |
| # higher_is_better=None. Ideally, the table should be |
| # altered to allow this. |
| if perf_dict['higher_is_better'] is not None: |
| data['higher_is_better'] = perf_dict['higher_is_better'] |
| data['graph'] = perf_dict['graph'] |
| self.insert('tko_iteration_perf_value', data, commit=commit) |
| |
| for key, value in test.attributes.iteritems(): |
| data = {'test_idx': test_idx, 'attribute': key, |
| 'value': value} |
| self.insert('tko_test_attributes', data, commit=commit) |
| |
| if not is_update: |
| for label_index in test.labels: |
| data = {'test_id': test_idx, 'testlabel_id': label_index} |
| self.insert('tko_test_labels_tests', data, commit=commit) |
| |
| |
| def read_machine_map(self): |
| if self.machine_group or not self.machine_map: |
| return |
| for line in open(self.machine_map, 'r').readlines(): |
| (machine, group) = line.split() |
| self.machine_group[machine] = group |
| |
| |
| def machine_info_dict(self, job): |
| hostname = job.machine |
| group = job.machine_group |
| owner = job.machine_owner |
| |
| if not group: |
| self.read_machine_map() |
| group = self.machine_group.get(hostname, hostname) |
| if group == hostname and owner: |
| group = owner + '/' + hostname |
| |
| return {'hostname': hostname, 'machine_group': group, 'owner': owner} |
| |
| |
| def insert_machine(self, job, commit = None): |
| machine_info = self.machine_info_dict(job) |
| self.insert('tko_machines', machine_info, commit=commit) |
| return self.get_last_autonumber_value() |
| |
| |
| def update_machine_information(self, job, commit = None): |
| machine_info = self.machine_info_dict(job) |
| self.update('tko_machines', machine_info, |
| where={'hostname': machine_info['hostname']}, |
| commit=commit) |
| |
| |
| def lookup_machine(self, hostname): |
| where = { 'hostname' : hostname } |
| rows = self.select('machine_idx', 'tko_machines', where) |
| if rows: |
| return rows[0][0] |
| else: |
| return None |
| |
| |
| def lookup_kernel(self, kernel): |
| rows = self.select('kernel_idx', 'tko_kernels', |
| {'kernel_hash':kernel.kernel_hash}) |
| if rows: |
| return rows[0][0] |
| else: |
| return None |
| |
| |
| def insert_kernel(self, kernel, commit = None): |
| kver = self.lookup_kernel(kernel) |
| if kver: |
| return kver |
| |
| # If this kernel has any significant patches, append their hash |
| # as diferentiator. |
| printable = kernel.base |
| patch_count = 0 |
| for patch in kernel.patches: |
| match = re.match(r'.*(-mm[0-9]+|-git[0-9]+)\.(bz2|gz)$', |
| patch.reference) |
| if not match: |
| patch_count += 1 |
| |
| self.insert('tko_kernels', |
| {'base':kernel.base, |
| 'kernel_hash':kernel.kernel_hash, |
| 'printable':printable}, |
| commit=commit) |
| kver = self.get_last_autonumber_value() |
| |
| if patch_count > 0: |
| printable += ' p%d' % (kver) |
| self.update('tko_kernels', |
| {'printable':printable}, |
| {'kernel_idx':kver}) |
| |
| for patch in kernel.patches: |
| self.insert_patch(kver, patch, commit=commit) |
| return kver |
| |
| |
| def insert_patch(self, kver, patch, commit = None): |
| print patch.reference |
| name = os.path.basename(patch.reference)[:80] |
| self.insert('tko_patches', |
| {'kernel_idx': kver, |
| 'name':name, |
| 'url':patch.reference, |
| 'hash':patch.hash}, |
| commit=commit) |
| |
| |
| def find_test(self, job_idx, testname, subdir): |
| where = {'job_idx': job_idx , 'test': testname, 'subdir': subdir} |
| rows = self.select('test_idx', 'tko_tests', where) |
| if rows: |
| return rows[0][0] |
| else: |
| return None |
| |
| |
| def find_tests(self, job_idx): |
| where = { 'job_idx':job_idx } |
| rows = self.select('test_idx', 'tko_tests', where) |
| if rows: |
| return [row[0] for row in rows] |
| else: |
| return [] |
| |
| |
| def find_job(self, tag): |
| rows = self.select('job_idx', 'tko_jobs', {'tag': tag}) |
| if rows: |
| return rows[0][0] |
| else: |
| return None |
| |
| |
| def _get_db_type(): |
| """Get the database type name to use from the global config.""" |
| get_value = global_config.global_config.get_config_value_with_fallback |
| return "db_" + get_value("AUTOTEST_WEB", "global_db_type", "db_type", |
| default="mysql") |
| |
| |
| def _get_error_class(class_name): |
| """Retrieves the appropriate error class by name from the database |
| module.""" |
| db_module = __import__("autotest_lib.tko." + _get_db_type(), |
| globals(), locals(), ["driver"]) |
| return getattr(db_module.driver, class_name) |
| |
| |
| def db(*args, **dargs): |
| """Creates an instance of the database class with the arguments |
| provided in args and dargs, using the database type specified by |
| the global configuration (defaulting to mysql).""" |
| db_type = _get_db_type() |
| db_module = __import__("autotest_lib.tko." + db_type, globals(), |
| locals(), [db_type]) |
| db = getattr(db_module, db_type)(*args, **dargs) |
| return db |
