一般拿Timer和Quartz相比较的，简直就是对Quartz的侮辱，两者的功能根本就不在一个层级上，如本篇介绍的Quartz强大的集群机制，可以采用基于
sqlserver，mysql的集群方案，当然还可以在第三方插件的基础上实现quartz序列化到热炒的mongodb，redis，震撼力可想而知，接下来本篇就和大家聊
一聊怎么搭建基于sqlserver的quartz集群，实现这么一种双机热备的强大功能。
一：下载sqlserver版的建表脚本
首先大家可以通过github上搜索quartz的源代码，在源码项目的/database/tables目录下，可以找到firebird，oracle，mysql，sqlserver等建库脚本，
本篇只需拿取sqlserver版本即可。 https://github.com/quartznet/quartznet/tree/master/database/tables 如下图所示
从上面的截图中可以看到，我接下来要做的事情就是增加一个你需要创建的database名字，这里取为：【quartz】，完整的脚本如下：
1 -- this script is for SQL Server and Azure SQL 2 3 CREATE DATABASE [quartz] 4 GO 5 6 USE [quartz] 7 GO 8 9 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1) 10 ALTER TABLE [dbo].[QRTZ_TRIGGERS] DROP CONSTRAINT FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS 11 GO 12 13 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1) 14 ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] DROP CONSTRAINT FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS 15 GO 16 17 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1) 18 ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] DROP CONSTRAINT FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS 19 GO 20 21 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1) 22 ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] DROP CONSTRAINT FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS 23 GO 24 25 IF EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_QRTZ_JOB_LISTENERS_QRTZ_JOB_DETAILS]') AND parent_object_id = OBJECT_ID(N'[dbo].[QRTZ_JOB_LISTENERS]')) 26 ALTER TABLE [dbo].[QRTZ_JOB_LISTENERS] DROP CONSTRAINT [FK_QRTZ_JOB_LISTENERS_QRTZ_JOB_DETAILS] 27 28 IF EXISTS (SELECT * FROM sys.foreign_keys WHERE object_id = OBJECT_ID(N'[dbo].[FK_QRTZ_TRIGGER_LISTENERS_QRTZ_TRIGGERS]') AND parent_object_id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGER_LISTENERS]')) 29 ALTER TABLE [dbo].[QRTZ_TRIGGER_LISTENERS] DROP CONSTRAINT [FK_QRTZ_TRIGGER_LISTENERS_QRTZ_TRIGGERS] 30 31 32 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_CALENDARS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 33 DROP TABLE [dbo].[QRTZ_CALENDARS] 34 GO 35 36 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_CRON_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 37 DROP TABLE [dbo].[QRTZ_CRON_TRIGGERS] 38 GO 39 40 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_BLOB_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 41 DROP TABLE [dbo].[QRTZ_BLOB_TRIGGERS] 42 GO 43 44 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_FIRED_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 45 DROP TABLE [dbo].[QRTZ_FIRED_TRIGGERS] 46 GO 47 48 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_PAUSED_TRIGGER_GRPS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 49 DROP TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] 50 GO 51 52 IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[QRTZ_JOB_LISTENERS]') AND type in (N'U')) 53 DROP TABLE [dbo].[QRTZ_JOB_LISTENERS] 54 55 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SCHEDULER_STATE]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 56 DROP TABLE [dbo].[QRTZ_SCHEDULER_STATE] 57 GO 58 59 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_LOCKS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 60 DROP TABLE [dbo].[QRTZ_LOCKS] 61 GO 62 IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGER_LISTENERS]') AND type in (N'U')) 63 DROP TABLE [dbo].[QRTZ_TRIGGER_LISTENERS] 64 65 66 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_JOB_DETAILS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 67 DROP TABLE [dbo].[QRTZ_JOB_DETAILS] 68 GO 69 70 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SIMPLE_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 71 DROP TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] 72 GO 73 74 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SIMPROP_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 75 DROP TABLE [dbo].QRTZ_SIMPROP_TRIGGERS 76 GO 77 78 IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1) 79 DROP TABLE [dbo].[QRTZ_TRIGGERS] 80 GO 81 82 CREATE TABLE [dbo].[QRTZ_CALENDARS] ( 83 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 84 [CALENDAR_NAME] [NVARCHAR] (200) NOT NULL , 85 [CALENDAR] [IMAGE] NOT NULL 86 ) 87 GO 88 89 CREATE TABLE [dbo].[QRTZ_CRON_TRIGGERS] ( 90 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 91 [TRIGGER_NAME] [NVARCHAR] (150) NOT NULL , 92 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL , 93 [CRON_EXPRESSION] [NVARCHAR] (120) NOT NULL , 94 [TIME_ZONE_ID] [NVARCHAR] (80) 95 ) 96 GO 97 98 CREATE TABLE [dbo].[QRTZ_FIRED_TRIGGERS] ( 99 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 100 [ENTRY_ID] [NVARCHAR] (140) NOT NULL , 101 [TRIGGER_NAME] [NVARCHAR] (150) NOT NULL , 102 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL , 103 [INSTANCE_NAME] [NVARCHAR] (200) NOT NULL , 104 [FIRED_TIME] [BIGINT] NOT NULL , 105 [SCHED_TIME] [BIGINT] NOT NULL , 106 [PRIORITY] [INTEGER] NOT NULL , 107 [STATE] [NVARCHAR] (16) NOT NULL, 108 [JOB_NAME] [NVARCHAR] (150) NULL , 109 [JOB_GROUP] [NVARCHAR] (150) NULL , 110 [IS_NONCONCURRENT] BIT NULL , 111 [REQUESTS_RECOVERY] BIT NULL 112 ) 113 GO 114 115 CREATE TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] ( 116 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 117 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL 118 ) 119 GO 120 121 CREATE TABLE [dbo].[QRTZ_SCHEDULER_STATE] ( 122 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 123 [INSTANCE_NAME] [NVARCHAR] (200) NOT NULL , 124 [LAST_CHECKIN_TIME] [BIGINT] NOT NULL , 125 [CHECKIN_INTERVAL] [BIGINT] NOT NULL 126 ) 127 GO 128 129 CREATE TABLE [dbo].[QRTZ_LOCKS] ( 130 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 131 [LOCK_NAME] [NVARCHAR] (40) NOT NULL 132 ) 133 GO 134 135 CREATE TABLE [dbo].[QRTZ_JOB_DETAILS] ( 136 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 137 [JOB_NAME] [NVARCHAR] (150) NOT NULL , 138 [JOB_GROUP] [NVARCHAR] (150) NOT NULL , 139 [DESCRIPTION] [NVARCHAR] (250) NULL , 140 [JOB_CLASS_NAME] [NVARCHAR] (250) NOT NULL , 141 [IS_DURABLE] BIT NOT NULL , 142 [IS_NONCONCURRENT] BIT NOT NULL , 143 [IS_UPDATE_DATA] BIT NOT NULL , 144 [REQUESTS_RECOVERY] BIT NOT NULL , 145 [JOB_DATA] [IMAGE] NULL 146 ) 147 GO 148 149 CREATE TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] ( 150 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 151 [TRIGGER_NAME] [NVARCHAR] (150) NOT NULL , 152 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL , 153 [REPEAT_COUNT] [INTEGER] NOT NULL , 154 [REPEAT_INTERVAL] [BIGINT] NOT NULL , 155 [TIMES_TRIGGERED] [INTEGER] NOT NULL 156 ) 157 GO 158 159 CREATE TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] ( 160 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 161 [TRIGGER_NAME] [NVARCHAR] (150) NOT NULL , 162 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL , 163 [STR_PROP_1] [NVARCHAR] (512) NULL, 164 [STR_PROP_2] [NVARCHAR] (512) NULL, 165 [STR_PROP_3] [NVARCHAR] (512) NULL, 166 [INT_PROP_1] [INT] NULL, 167 [INT_PROP_2] [INT] NULL, 168 [LONG_PROP_1] [BIGINT] NULL, 169 [LONG_PROP_2] [BIGINT] NULL, 170 [DEC_PROP_1] [NUMERIC] (13,4) NULL, 171 [DEC_PROP_2] [NUMERIC] (13,4) NULL, 172 [BOOL_PROP_1] BIT NULL, 173 [BOOL_PROP_2] BIT NULL, 174 ) 175 GO 176 177 CREATE TABLE [dbo].[QRTZ_BLOB_TRIGGERS] ( 178 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 179 [TRIGGER_NAME] [NVARCHAR] (150) NOT NULL , 180 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL , 181 [BLOB_DATA] [IMAGE] NULL 182 ) 183 GO 184 185 CREATE TABLE [dbo].[QRTZ_TRIGGERS] ( 186 [SCHED_NAME] [NVARCHAR] (120) NOT NULL , 187 [TRIGGER_NAME] [NVARCHAR] (150) NOT NULL , 188 [TRIGGER_GROUP] [NVARCHAR] (150) NOT NULL , 189 [JOB_NAME] [NVARCHAR] (150) NOT NULL , 190 [JOB_GROUP] [NVARCHAR] (150) NOT NULL , 191 [DESCRIPTION] [NVARCHAR] (250) NULL , 192 [NEXT_FIRE_TIME] [BIGINT] NULL , 193 [PREV_FIRE_TIME] [BIGINT] NULL , 194 [PRIORITY] [INTEGER] NULL , 195 [TRIGGER_STATE] [NVARCHAR] (16) NOT NULL , 196 [TRIGGER_TYPE] [NVARCHAR] (8) NOT NULL , 197 [START_TIME] [BIGINT] NOT NULL , 198 [END_TIME] [BIGINT] NULL , 199 [CALENDAR_NAME] [NVARCHAR] (200) NULL , 200 [MISFIRE_INSTR] [INTEGER] NULL , 201 [JOB_DATA] [IMAGE] NULL 202 ) 203 GO 204 205 ALTER TABLE [dbo].[QRTZ_CALENDARS] WITH NOCHECK ADD 206 CONSTRAINT [PK_QRTZ_CALENDARS] PRIMARY KEY CLUSTERED 207 ( 208 [SCHED_NAME], 209 [CALENDAR_NAME] 210 ) 211 GO 212 213 ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] WITH NOCHECK ADD 214 CONSTRAINT [PK_QRTZ_CRON_TRIGGERS] PRIMARY KEY CLUSTERED 215 ( 216 [SCHED_NAME], 217 [TRIGGER_NAME], 218 [TRIGGER_GROUP] 219 ) 220 GO 221 222 ALTER TABLE [dbo].[QRTZ_FIRED_TRIGGERS] WITH NOCHECK ADD 223 CONSTRAINT [PK_QRTZ_FIRED_TRIGGERS] PRIMARY KEY CLUSTERED 224 ( 225 [SCHED_NAME], 226 [ENTRY_ID] 227 ) 228 GO 229 230 ALTER TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] WITH NOCHECK ADD 231 CONSTRAINT [PK_QRTZ_PAUSED_TRIGGER_GRPS] PRIMARY KEY CLUSTERED 232 ( 233 [SCHED_NAME], 234 [TRIGGER_GROUP] 235 ) 236 GO 237 238 ALTER TABLE [dbo].[QRTZ_SCHEDULER_STATE] WITH NOCHECK ADD 239 CONSTRAINT [PK_QRTZ_SCHEDULER_STATE] PRIMARY KEY CLUSTERED 240 ( 241 [SCHED_NAME], 242 [INSTANCE_NAME] 243 ) 244 GO 245 246 ALTER TABLE [dbo].[QRTZ_LOCKS] WITH NOCHECK ADD 247 CONSTRAINT [PK_QRTZ_LOCKS] PRIMARY KEY CLUSTERED 248 ( 249 [SCHED_NAME], 250 [LOCK_NAME] 251 ) 252 GO 253 254 ALTER TABLE [dbo].[QRTZ_JOB_DETAILS] WITH NOCHECK ADD 255 CONSTRAINT [PK_QRTZ_JOB_DETAILS] PRIMARY KEY CLUSTERED 256 ( 257 [SCHED_NAME], 258 [JOB_NAME], 259 [JOB_GROUP] 260 ) 261 GO 262 263 ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] WITH NOCHECK ADD 264 CONSTRAINT [PK_QRTZ_SIMPLE_TRIGGERS] PRIMARY KEY CLUSTERED 265 ( 266 [SCHED_NAME], 267 [TRIGGER_NAME], 268 [TRIGGER_GROUP] 269 ) 270 GO 271 272 ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] WITH NOCHECK ADD 273 CONSTRAINT [PK_QRTZ_SIMPROP_TRIGGERS] PRIMARY KEY CLUSTERED 274 ( 275 [SCHED_NAME], 276 [TRIGGER_NAME], 277 [TRIGGER_GROUP] 278 ) 279 GO 280 281 ALTER TABLE [dbo].[QRTZ_TRIGGERS] WITH NOCHECK ADD 282 CONSTRAINT [PK_QRTZ_TRIGGERS] PRIMARY KEY CLUSTERED 283 ( 284 [SCHED_NAME], 285 [TRIGGER_NAME], 286 [TRIGGER_GROUP] 287 ) 288 GO 289 290 ALTER TABLE [dbo].QRTZ_BLOB_TRIGGERS WITH NOCHECK ADD 291 CONSTRAINT [PK_QRTZ_BLOB_TRIGGERS] PRIMARY KEY CLUSTERED 292 ( 293 [SCHED_NAME], 294 [TRIGGER_NAME], 295 [TRIGGER_GROUP] 296 ) 297 GO 298 299 ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] ADD 300 CONSTRAINT [FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY 301 ( 302 [SCHED_NAME], 303 [TRIGGER_NAME], 304 [TRIGGER_GROUP] 305 ) REFERENCES [dbo].[QRTZ_TRIGGERS] ( 306 [SCHED_NAME], 307 [TRIGGER_NAME], 308 [TRIGGER_GROUP] 309 ) ON DELETE CASCADE 310 GO 311 312 ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] ADD 313 CONSTRAINT [FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY 314 ( 315 [SCHED_NAME], 316 [TRIGGER_NAME], 317 [TRIGGER_GROUP] 318 ) REFERENCES [dbo].[QRTZ_TRIGGERS] ( 319 [SCHED_NAME], 320 [TRIGGER_NAME], 321 [TRIGGER_GROUP] 322 ) ON DELETE CASCADE 323 GO 324 325 ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] ADD 326 CONSTRAINT [FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY 327 ( 328 [SCHED_NAME], 329 [TRIGGER_NAME], 330 [TRIGGER_GROUP] 331 ) REFERENCES [dbo].[QRTZ_TRIGGERS] ( 332 [SCHED_NAME], 333 [TRIGGER_NAME], 334 [TRIGGER_GROUP] 335 ) ON DELETE CASCADE 336 GO 337 338 ALTER TABLE [dbo].[QRTZ_TRIGGERS] ADD 339 CONSTRAINT [FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS] FOREIGN KEY 340 ( 341 [SCHED_NAME], 342 [JOB_NAME], 343 [JOB_GROUP] 344 ) REFERENCES [dbo].[QRTZ_JOB_DETAILS] ( 345 [SCHED_NAME], 346 [JOB_NAME], 347 [JOB_GROUP] 348 ) 349 GO 350 351 CREATE INDEX IDX_QRTZ_T_J ON QRTZ_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP) 352 CREATE INDEX IDX_QRTZ_T_JG ON QRTZ_TRIGGERS(SCHED_NAME,JOB_GROUP) 353 CREATE INDEX IDX_QRTZ_T_C ON QRTZ_TRIGGERS(SCHED_NAME,CALENDAR_NAME) 354 CREATE INDEX IDX_QRTZ_T_G ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP) 355 CREATE INDEX IDX_QRTZ_T_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE) 356 CREATE INDEX IDX_QRTZ_T_N_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP,TRIGGER_STATE) 357 CREATE INDEX IDX_QRTZ_T_N_G_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP,TRIGGER_STATE) 358 CREATE INDEX IDX_QRTZ_T_NEXT_FIRE_TIME ON QRTZ_TRIGGERS(SCHED_NAME,NEXT_FIRE_TIME) 359 CREATE INDEX IDX_QRTZ_T_NFT_ST ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE,NEXT_FIRE_TIME) 360 CREATE INDEX IDX_QRTZ_T_NFT_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME) 361 CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_STATE) 362 CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE_GRP ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_GROUP,TRIGGER_STATE) 363 364 CREATE INDEX IDX_QRTZ_FT_TRIG_INST_NAME ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME) 365 CREATE INDEX IDX_QRTZ_FT_INST_JOB_REQ_RCVRY ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME,REQUESTS_RECOVERY) 366 CREATE INDEX IDX_QRTZ_FT_J_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP) 367 CREATE INDEX IDX_QRTZ_FT_JG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_GROUP) 368 CREATE INDEX IDX_QRTZ_FT_T_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP) 369 CREATE INDEX IDX_QRTZ_FT_TG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_GROUP) 370 GO
二：配置quartz的集群参数
当我们写var scheduler = StdSchedulerFactory.GetDefaultScheduler()这段代码的时候，如果大家看过源码的话，会知道这个GetScheduler的
过程中有一个初始化方法【Instantiate】方法，此方法中你会发现在做DBProvider的时候会需要几个参数来初始化DB的，比如下面看到的几个标红属性。
1 IList<string> dsNames = cfg.GetPropertyGroups(PropertyDataSourcePrefix); 2 foreach (string dataSourceName in dsNames) 3 { 4 string datasourceKey = "{0}.{1}".FormatInvariant(PropertyDataSourcePrefix, dataSourceName); 5 NameValueCollection propertyGroup = cfg.GetPropertyGroup(datasourceKey, true); 6 PropertiesParser pp = new PropertiesParser(propertyGroup); 7 8 Type cpType = loadHelper.LoadType(pp.GetStringProperty(PropertyDbProviderType, null)); 9 10 // custom connectionProvider... 11 if (cpType != null) 12 { 13 IDbProvider cp; 14 try 15 { 16 cp = ObjectUtils.InstantiateType<IDbProvider>(cpType); 17 } 18 catch (Exception e) 19 { 20 initException = new SchedulerException("ConnectionProvider of type '{0}' could not be instantiated.".FormatInvariant(cpType), e); 21 throw initException; 22 } 23 24 try 25 { 26 // remove the type name, so it isn't attempted to be set 27 pp.UnderlyingProperties.Remove(PropertyDbProviderType); 28 29 ObjectUtils.SetObjectProperties(cp, pp.UnderlyingProperties); 30 cp.Initialize(); 31 } 32 catch (Exception e) 33 { 34 initException = new SchedulerException("ConnectionProvider type '{0}' props could not be configured.".FormatInvariant(cpType), e); 35 throw initException; 36 } 37 38 dbMgr = DBConnectionManager.Instance; 39 dbMgr.AddConnectionProvider(dataSourceName, cp); 40 } 41 else 42 { 43 string dsProvider = pp.GetStringProperty(PropertyDataSourceProvider, null); 44 string dsConnectionString = pp.GetStringProperty(PropertyDataSourceConnectionString, null); 45 string dsConnectionStringName = pp.GetStringProperty(PropertyDataSourceConnectionStringName, null); 46 47 if (dsConnectionString == null && !String.IsNullOrEmpty(dsConnectionStringName)) 48 { 49 50 ConnectionStringSettings connectionStringSettings = ConfigurationManager.ConnectionStrings[dsConnectionStringName]; 51 if (connectionStringSettings == null) 52 { 53 initException = new SchedulerException("Named connection string '{0}' not found for DataSource: {1}".FormatInvariant(dsConnectionStringName, dataSourceName)); 54 throw initException; 55 } 56 dsConnectionString = connectionStringSettings.ConnectionString; 57 } 58 59 if (dsProvider == null) 60 { 61 initException = new SchedulerException("Provider not specified for DataSource: {0}".FormatInvariant(dataSourceName)); 62 throw initException; 63 } 64 if (dsConnectionString == null) 65 { 66 initException = new SchedulerException("Connection string not specified for DataSource: {0}".FormatInvariant(dataSourceName)); 67 throw initException; 68 } 69 try 70 { 71 DbProvider dbp = new DbProvider(dsProvider, dsConnectionString); 72 dbp.Initialize(); 73 74 dbMgr = DBConnectionManager.Instance; 75 dbMgr.AddConnectionProvider(dataSourceName, dbp); 76 } 77 catch (Exception exception) 78 { 79 initException = new SchedulerException("Could not Initialize DataSource: {0}".FormatInvariant(dataSourceName), exception); 80 throw initException; 81 } 82 } 83 }
接下来的问题就是这几个属性是如何配置进去的，仔细观察上面代码，你会发现所有的配置的源头都来自于cfg变量，ok，接下来你可以继续翻看代码，相信
你会看到有一个Initialize方法就是做cfg变量的初始化，如下代码所示：
1 public void Initialize() 2 { 3 // short-circuit if already initialized 4 if (cfg != null) 5 { 6 return; 7 } 8 if (initException != null) 9 { 10 throw initException; 11 } 12 13 NameValueCollection props = (NameValueCollection) ConfigurationManager.GetSection(ConfigurationSectionName); 14 15 string requestedFile = QuartzEnvironment.GetEnvironmentVariable(PropertiesFile); 16 17 string propFileName = requestedFile != null && requestedFile.Trim().Length > 0 ? requestedFile : "~/quartz.config"; 18 19 // check for specials 20 try 21 { 22 propFileName = FileUtil.ResolveFile(propFileName); 23 } 24 catch (SecurityException) 25 { 26 log.WarnFormat("Unable to resolve file path '{0}' due to security exception, probably running under medium trust"); 27 propFileName = "quartz.config"; 28 } 29 30 if (props == null && File.Exists(propFileName)) 31 { 32 // file system 33 try 34 { 35 PropertiesParser pp = PropertiesParser.ReadFromFileResource(propFileName); 36 props = pp.UnderlyingProperties; 37 Log.Info(string.Format("Quartz.NET properties loaded from configuration file '{0}'", propFileName)); 38 } 39 catch (Exception ex) 40 { 41 Log.Error("Could not load properties for Quartz from file {0}: {1}".FormatInvariant(propFileName, ex.Message), ex); 42 } 43 44 } 45 if (props == null) 46 { 47 // read from assembly 48 try 49 { 50 PropertiesParser pp = PropertiesParser.ReadFromEmbeddedAssemblyResource("Quartz.quartz.config"); 51 props = pp.UnderlyingProperties; 52 Log.Info("Default Quartz.NET properties loaded from embedded resource file"); 53 } 54 catch (Exception ex) 55 { 56 Log.Error("Could not load default properties for Quartz from Quartz assembly: {0}".FormatInvariant(ex.Message), ex); 57 } 58 } 59 if (props == null) 60 { 61 throw new SchedulerConfigException( 62 @"Could not find <quartz> configuration section from your application config or load default configuration from assembly. 63 Please add configuration to your application config file to correctly initialize Quartz."); 64 } 65 Initialize(OverrideWithSysProps(props)); 66 }
仔细阅读上面的一串代码，你会发现，默认quartz参数配置来源于三个地方。
1. app.config中的section节点。
2. bin目录下的~/quartz.config文件。
3. 默认配置的NameValueCollection字典集合，也就是上一篇博客给大家做的一个演示。
我个人不怎么喜欢通过quartz.config文件进行配置，这样也容易写死，所以我还是喜欢使用最简单的NameValueCollection配置，因为它的数据源可来源
于第三方存储结构中，配置代码如下：
1 //1.首先创建一个作业调度池 2 var properties = new NameValueCollection(); 3 //存储类型 4 properties["quartz.jobStore.type"] = "Quartz.Impl.AdoJobStore.JobStoreTX, Quartz"; 5 6 //驱动类型 7 properties["quartz.jobStore.driverDelegateType"] = "Quartz.Impl.AdoJobStore.SqlServerDelegate, Quartz"; //数据源名称 8 properties["quartz.jobStore.dataSource"] = "myDS"; 9 10 //连接字符串 11 properties["quartz.dataSource.myDS.connectionString"] = @"server=.;Initial Catalog=quartz;Integrated Security=True"; 12 //sqlserver版本 13 properties["quartz.dataSource.myDS.provider"] = "SqlServer-20"; 14 15 //是否集群 16 properties["quartz.jobStore.clustered"] = "true"; 17 properties["quartz.scheduler.instanceId"] = "AUTO";
上面的代码配置我都加过详细的注释，大家应该都能看得懂，而且这些配置就是这么定死的，没什么修改的空间，大家记住即可。
三：Job和Trigger定义
在集群中环境下，job和trigger的定义该怎么写的？大家也不要想的太复杂，注意一点就可以了，在Schedule一个Job时候，通过CheckExists判断一下
这个Job在Scheduler中是否已经存在了，如果存在，你就不能再次通过Schedule去重复调度一个Job就可以了。。。所以判断的代码也很简单，如下所示：
1 IScheduler scheduler = factory.GetScheduler(); 2 3 scheduler.Start(); 4 5 var jobKey = JobKey.Create("myjob", "group"); 6 7 if (scheduler.CheckExists(jobKey)) 8 { 9 Console.WriteLine("当前job已经存在，无需调度:{0}", jobKey.ToString()); 10 } 11 else 12 { 13 IJobDetail job = JobBuilder.Create<HelloJob>() 14 .WithDescription("使用quartz进行持久化存储") 15 .StoreDurably() 16 .RequestRecovery() 17 .WithIdentity(jobKey) 18 .UsingJobData("count", 1) 19 .Build(); 20 21 ITrigger trigger = TriggerBuilder.Create().WithSimpleSchedule(x => x.WithIntervalInSeconds(2).RepeatForever()) 22 .Build(); 23 24 scheduler.ScheduleJob(job, trigger); 25 26 Console.WriteLine("调度进行中！！！"); 27 }
上面这段代码，大家就可以部署在多台机器中了，是不是很简单？
四：强大的cluster完整演示
所有的初始化工作都做完了，接下来我们copy一份bin文件，同时打开两个console程序，如下所示，可以看到job任务只会被一个console调度，另外
一个在空等待。
然后你肯定很好奇的跑到sqlserver中去看看，是否已经有job和trigger的db存储，很开心吧，数据都有的。。。
、
好了，一切都是那么完美，接下来可以展示一下quartz集群下的高可用啦，如果某一个console挂了，那么另一台console会把这个任务给接过来，实
现强大的高可用。。。所以我要做的事情就是把console1关掉，再看看console2是不是可以开始调度job了？？？
完美，这个就是本篇给大家介绍的Quartz的Cluster集群，一台挂，另一台顶住，双机热备，当然这些console你可以部署在多台机器中，要做的就是保持各
个server的时间同步，因为quarz是依赖于本机server的时间，好了，本篇就先说到这里吧。
小礼物走一波，双击666。。。 完整代码：SimpleSchedulerApp.zip