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| #!/usr/bin/env python | ||
| # -*- coding: UTF-8 -* | ||
| # Copyright (c) 2022 OceanBase | ||
| # OceanBase Diagnostic Tool is licensed under Mulan PSL v2. | ||
| # You can use this software according to the terms and conditions of the Mulan PSL v2. | ||
| # You may obtain a copy of Mulan PSL v2 at: | ||
| # http://license.coscl.org.cn/MulanPSL2 | ||
| # THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, | ||
| # EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, | ||
| # MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE. | ||
| # See the Mulan PSL v2 for more details. | ||
|
|
||
| """ | ||
| @time: 2024/8/19 | ||
| @file: analyze_index_space.py | ||
| @desc: | ||
| """ | ||
|
|
||
|
|
||
| import sys | ||
| from common.tool import StringUtils, Util | ||
| from common.ob_connector import OBConnector | ||
| from common.command import get_observer_version | ||
|
|
||
|
|
||
| class AnalyzeIndexSpaceHandler(object): | ||
| def __init__(self, context): | ||
| self.context = context | ||
| self.stdio = context.stdio | ||
| self.ob_version = get_observer_version(self.context) | ||
| self.sys_connector = None | ||
| self.tenant_id = None | ||
| self.table_id = None | ||
| self.index_id = None | ||
| self.column_names = [] | ||
| self.estimated_table_data = None | ||
|
|
||
| def init_option(self): | ||
| options = self.context.options | ||
| ob_cluster = self.context.cluster_config | ||
| self.stdio.verbose('cluster config: {0}'.format(StringUtils.mask_passwords(ob_cluster))) | ||
| self.ob_cluster = ob_cluster | ||
| self.sys_connector = OBConnector(ip=ob_cluster.get("db_host"), port=ob_cluster.get("db_port"), username=ob_cluster.get("tenant_sys").get("user"), password=ob_cluster.get("tenant_sys").get("password"), stdio=self.stdio, timeout=100) | ||
| tenant_name = Util.get_option(options, 'tenant_name') | ||
| table_name = Util.get_option(options, 'table_name') | ||
| index_name = Util.get_option(options, 'index_name') | ||
| column_names = Util.get_option(options, 'column_names') | ||
| # get tenant id | ||
| tenant_data = self.sys_connector.execute_sql("select tenant_id from oceanbase.__all_tenant where tenant_name = '{0}';".format(tenant_name)) | ||
| if len(tenant_data) == 0: | ||
| raise Exception("can not find tenant id by tenant name: {0}. Please check the tenant name.".format(tenant_name)) | ||
| self.tenant_id = tenant_data[0][0] | ||
| if self.tenant_id is None: | ||
| raise Exception("can not find tenant id by tenant name: {0}. Please check the tenant name.".format(tenant_name)) | ||
| # get table id | ||
| table_id_data = self.sys_connector.execute_sql("select table_id from oceanbase.__all_virtual_table where table_name = '{0}' and tenant_id = '{1}';".format(table_name, self.tenant_id)) | ||
| if len(table_id_data) == 0: | ||
| raise Exception("can not find table id by table name: {0}. Please check the table name.".format(table_name)) | ||
| self.table_id = table_id_data[0][0] | ||
| if self.table_id is None: | ||
| raise Exception("can not find table id by table name: {0}. Please check the table name.".format(table_name)) | ||
| # get index id | ||
| if index_name is not None: | ||
| index_id_data = self.sys_connector.execute_sql("select table_id from oceanbase.__all_virtual_table where table_name like '%{0}%' and data_table_id = '{1}' and tenant_id = '{2}';".format(index_name, self.table_id, self.tenant_id)) | ||
| if len(index_id_data) == 0: | ||
| raise Exception("can not find index id by index name: {0}. Please check the index name.".format(index_name)) | ||
| self.index_id = index_id_data[0][0] | ||
| if self.index_id is None: | ||
| raise Exception("can not find index id by index name: {0}. Please check the index name.".format(index_name)) | ||
| # get column names | ||
| if column_names is not None: | ||
| self.column_names = column_names.split(',') | ||
| if len(self.column_names) == 0: | ||
| raise Exception("--column_names parameter format is incorrect: {0}.".format(column_names)) | ||
| return True | ||
|
|
||
| def handle(self): | ||
| try: | ||
| if not self.init_option(): | ||
| self.stdio.error('init option failed') | ||
| return False | ||
| # evaluate the space size of the table where the index is located | ||
| self.stdio.start_loading('start query estimated_table_data_size, please wait some minutes...') | ||
| sql = "select svr_ip, svr_port, sum(original_size) as estimated_table_size from oceanbase.__all_virtual_tablet_sstable_macro_info where tablet_id in (select tablet_id from oceanbase.__all_virtual_tablet_to_table_history where table_id = {0}) and (svr_ip, svr_port) in (select svr_ip, svr_port from oceanbase.__all_virtual_ls_meta_table where role = 1) group by svr_ip, svr_port;".format( | ||
| self.table_id | ||
| ) | ||
| self.stdio.verbose("execute_sql is {0}".format(sql)) | ||
| self.estimated_table_data = self.sys_connector.execute_sql_return_cursor_dictionary(sql).fetchall() | ||
| self.stdio.stop_loading('succeed') | ||
| # get the sum of all column lengths | ||
| sql = "select table_id, sum(data_length) as all_columns_length from oceanbase.__all_virtual_column_history where tenant_id = '{0}' and table_id = '{1}';".format(self.tenant_id, self.table_id) | ||
| self.stdio.verbose("execute_sql is {0}".format(sql)) | ||
| self.main_table_sum_of_data_length = int(self.sys_connector.execute_sql_return_cursor_dictionary(sql).fetchall()[0]["all_columns_length"]) | ||
| # get the sum of column lengths included in the index | ||
| if self.index_id is not None: | ||
| sql = "select table_id, sum(data_length) as index_columns_length from oceanbase.__all_virtual_column_history where tenant_id = '{0}' and table_id = '{1}';".format(self.tenant_id, self.index_id) | ||
| self.stdio.verbose("execute_sql is {0}".format(sql)) | ||
| self.index_table_sum_of_data_length = int(self.sys_connector.execute_sql_return_cursor_dictionary(sql).fetchall()[0]["index_columns_length"]) | ||
| elif len(self.column_names) != 0: | ||
| sql = "select table_id, sum(data_length) as columns_length from oceanbase.__all_virtual_column_history where tenant_id = '{0}' and table_id = '{1}' and column_name in ('{2}');".format( | ||
| self.tenant_id, self.table_id, "','".join(self.column_names) | ||
| ) | ||
| self.stdio.verbose("execute_sql is {0}".format(sql)) | ||
| self.index_table_sum_of_data_length = int(self.sys_connector.execute_sql_return_cursor_dictionary(sql).fetchall()[0]["columns_length"]) | ||
| else: | ||
| raise Exception("please specify an index or column.") | ||
|
|
||
| # estimate the final space size | ||
| estimated_index_data = [] | ||
| for node_table_estimated_size in self.estimated_table_data: | ||
| node_estimated_index_data = {} | ||
| node_estimated_index_data["svr_ip"] = node_table_estimated_size["svr_ip"] | ||
| node_estimated_index_data["svr_port"] = node_table_estimated_size["svr_port"] | ||
| estimiated_index_size = int(self.index_table_sum_of_data_length / self.main_table_sum_of_data_length * int(node_table_estimated_size["estimated_table_size"])) | ||
| if self.ob_version == "4.2.3.0" or StringUtils.compare_versions_greater(self.ob_version, "4.2.3.0"): | ||
| self.stdio.verbose("magnification is 1.5") | ||
| target_server_estimated_size = int(estimiated_index_size * 15 / 10) | ||
| else: | ||
| self.stdio.verbose("magnification is 5.5") | ||
| target_server_estimated_size = int(estimiated_index_size * 55 / 10) | ||
| node_estimated_index_data["estimiated_index_size"] = target_server_estimated_size | ||
| estimated_index_data.append(node_estimated_index_data) | ||
| for node_estimated_index_data in estimated_index_data: | ||
| target_server_ip = node_estimated_index_data["svr_ip"] | ||
| target_server_port = node_estimated_index_data["svr_port"] | ||
| target_server_estimated_index_size = int(node_estimated_index_data["estimiated_index_size"]) | ||
| # get target_server_total_size and target_server_used_size | ||
| target_server_data = self.sys_connector.execute_sql_return_cursor_dictionary( | ||
| "select total_size, used_size from oceanbase.__all_virtual_disk_stat where svr_ip = '{0}' and svr_port = {1};".format(target_server_ip, target_server_port) | ||
| ).fetchall() | ||
| target_server_total_size = int(target_server_data[0]["total_size"]) | ||
| target_server_used_size = int(target_server_data[0]["used_size"]) | ||
| # get data_disk_usage_limit_percentage | ||
| sql = "SELECT VALUE FROM oceanbase.GV$OB_PARAMETERS WHERE SVR_IP='{0}' and SVR_PORT='{1}' and NAME LIKE \"data_disk_usage_limit_percentage\"".format(target_server_ip, target_server_port) | ||
| self.stdio.verbose("execute_sql is {0}".format(sql)) | ||
| data_disk_usage_limit_percentage = int(self.sys_connector.execute_sql_return_cursor_dictionary(sql).fetchall()[0]["VALUE"]) | ||
| # data_disk_usage_limit_percentage is a Cluster level configuration items | ||
| available_disk_space = int(target_server_total_size / 100 * data_disk_usage_limit_percentage - target_server_used_size) | ||
| if target_server_estimated_index_size > available_disk_space: | ||
| self.stdio.print("==>> estimated index space is {}.".format(target_server_estimated_index_size)) | ||
| self.stdio.print("the disk space of server({0}:{1}) disk is not enough. please add the server disk".format(target_server_ip, target_server_port)) | ||
| else: | ||
| self.stdio.print("==>> estimated index space is {}.".format(target_server_estimated_index_size)) | ||
| self.stdio.print("the disk space of server({0}:{1}) is enough. Don't warn. If there are still errors, please contact the OceanBase community.".format(target_server_ip, target_server_port)) | ||
| except Exception as e: | ||
| self.stdio.verbose("analyze index space error: {0}".format(e)) | ||
| sys.exit() | ||
| finally: | ||
| self.stdio.verbose("end analyze index space") |