Quartz.net 3.x使用總結(二)——Db持久化和叢集

撈月亮的猴子發表於2019-02-01

　　上一篇簡單介紹了Quartz.net的概念和基本用法，這一篇記錄一下Quartz.net通過資料庫持久化Trigger和Jobs等資料，並簡單配置Quartz.net的叢集。

1.JobStore介紹

　　學習持久化和叢集前我們先了解一下Quartz.net中的JobStore，JobStore用於追蹤任務排程相關的所有資料，如Job，Trigger，Claendar等。Quartz.net 提供了兩種JobStore:RAMJobStore,AdoJobStore。

RAMJobStore

　　RAMJobStore是最簡單的JobStore，顧名思義這種JobStore將所有的資料都存放在記憶體中，這也是它執行速度快的原因，但是弊端也很明顯:一旦應用結束或者遇到斷電所有的資料都會丟失。RAMJobStore是預設的JobStore，我們也已通過下邊的程式碼來顯式設定使用的JobStore為RAMJobStore。

quartz.jobStore.type = Quartz.Simpl.RAMJobStore, Quartz

AdoJobStore

　　AdoJobStore通過Ado.net將資料儲存在資料庫中，因此可以解決斷電資料丟失的問題，但是因為要讀寫資料庫所以效率相對較低。AdoJobStore官方支援的資料庫有：MySql,SqlServer,Sqllite,Oracle等，當前AdoJobStore只有一種型別JobStoreTX，這一點不同於Jave版本，java版本還有JobStoreCMT型別。

2.Db持久化和叢集配置

　　Quartz.net配置資料庫持久化和叢集比較容易，可以分為簡單的兩步：

第一步：新增資料庫表

　　我們首先要在資料庫中新增一系列的表（在Quartz專案的database/tables資料夾下可以找到各種資料庫表的生成指令碼，Git地址https://github.com/quartznet/quartznet/tree/master/database/tables）。以Sqlserver為例，Sqlserver的資料表生成指令碼如下：

-- this script is for SQL Server and Azure SQL
create database [QuartzDb]
go
USE [QuartzDb]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_TRIGGERS] DROP CONSTRAINT FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] DROP CONSTRAINT FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] DROP CONSTRAINT FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISFOREIGNKEY') = 1)
ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] DROP CONSTRAINT FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS
GO

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]'))
ALTER TABLE [dbo].[QRTZ_JOB_LISTENERS] DROP CONSTRAINT [FK_QRTZ_JOB_LISTENERS_QRTZ_JOB_DETAILS]

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]'))
ALTER TABLE [dbo].[QRTZ_TRIGGER_LISTENERS] DROP CONSTRAINT [FK_QRTZ_TRIGGER_LISTENERS_QRTZ_TRIGGERS]


IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_CALENDARS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_CALENDARS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_CRON_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_CRON_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_BLOB_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_BLOB_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_FIRED_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_FIRED_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_PAUSED_TRIGGER_GRPS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS]
GO

IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[QRTZ_JOB_LISTENERS]') AND type in (N'U'))
DROP TABLE [dbo].[QRTZ_JOB_LISTENERS]

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SCHEDULER_STATE]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_SCHEDULER_STATE]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_LOCKS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_LOCKS]
GO
IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGER_LISTENERS]') AND type in (N'U'))
DROP TABLE [dbo].[QRTZ_TRIGGER_LISTENERS]


IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_JOB_DETAILS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_JOB_DETAILS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SIMPLE_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS]
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_SIMPROP_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].QRTZ_SIMPROP_TRIGGERS
GO

IF EXISTS (SELECT * FROM dbo.sysobjects WHERE id = OBJECT_ID(N'[dbo].[QRTZ_TRIGGERS]') AND OBJECTPROPERTY(id, N'ISUSERTABLE') = 1)
DROP TABLE [dbo].[QRTZ_TRIGGERS]
GO

CREATE TABLE [dbo].[QRTZ_CALENDARS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [CALENDAR_NAME] [NVARCHAR] (200)  NOT NULL ,
  [CALENDAR] [VARBINARY](MAX) NOT NULL
)
GO

CREATE TABLE [dbo].[QRTZ_CRON_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [CRON_EXPRESSION] [NVARCHAR] (120)  NOT NULL ,
  [TIME_ZONE_ID] [NVARCHAR] (80) 
)
GO

CREATE TABLE [dbo].[QRTZ_FIRED_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [ENTRY_ID] [NVARCHAR] (140)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [INSTANCE_NAME] [NVARCHAR] (200)  NOT NULL ,
  [FIRED_TIME] [BIGINT] NOT NULL ,
  [SCHED_TIME] [BIGINT] NOT NULL ,
  [PRIORITY] [INTEGER] NOT NULL ,
  [STATE] [NVARCHAR] (16)  NOT NULL,
  [JOB_NAME] [NVARCHAR] (150)  NULL ,
  [JOB_GROUP] [NVARCHAR] (150)  NULL ,
  [IS_NONCONCURRENT] BIT  NULL ,
  [REQUESTS_RECOVERY] BIT  NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_SCHEDULER_STATE] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [INSTANCE_NAME] [NVARCHAR] (200)  NOT NULL ,
  [LAST_CHECKIN_TIME] [BIGINT] NOT NULL ,
  [CHECKIN_INTERVAL] [BIGINT] NOT NULL
)
GO

CREATE TABLE [dbo].[QRTZ_LOCKS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [LOCK_NAME] [NVARCHAR] (40)  NOT NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_JOB_DETAILS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [JOB_NAME] [NVARCHAR] (150)  NOT NULL ,
  [JOB_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [DESCRIPTION] [NVARCHAR] (250) NULL ,
  [JOB_CLASS_NAME] [NVARCHAR] (250)  NOT NULL ,
  [IS_DURABLE] BIT  NOT NULL ,
  [IS_NONCONCURRENT] BIT  NOT NULL ,
  [IS_UPDATE_DATA] BIT  NOT NULL ,
  [REQUESTS_RECOVERY] BIT  NOT NULL ,
  [JOB_DATA] [VARBINARY](MAX) NULL
)
GO

CREATE TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [REPEAT_COUNT] [INTEGER] NOT NULL ,
  [REPEAT_INTERVAL] [BIGINT] NOT NULL ,
  [TIMES_TRIGGERED] [INTEGER] NOT NULL
)
GO

CREATE TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [STR_PROP_1] [NVARCHAR] (512) NULL,
  [STR_PROP_2] [NVARCHAR] (512) NULL,
  [STR_PROP_3] [NVARCHAR] (512) NULL,
  [INT_PROP_1] [INT] NULL,
  [INT_PROP_2] [INT] NULL,
  [LONG_PROP_1] [BIGINT] NULL,
  [LONG_PROP_2] [BIGINT] NULL,
  [DEC_PROP_1] [NUMERIC] (13,4) NULL,
  [DEC_PROP_2] [NUMERIC] (13,4) NULL,
  [BOOL_PROP_1] BIT NULL,
  [BOOL_PROP_2] BIT NULL,
  [TIME_ZONE_ID] [NVARCHAR] (80) NULL 
)
GO

CREATE TABLE [dbo].[QRTZ_BLOB_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [BLOB_DATA] [VARBINARY](MAX) NULL
)
GO

CREATE TABLE [dbo].[QRTZ_TRIGGERS] (
  [SCHED_NAME] [NVARCHAR] (120)  NOT NULL ,
  [TRIGGER_NAME] [NVARCHAR] (150)  NOT NULL ,
  [TRIGGER_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [JOB_NAME] [NVARCHAR] (150)  NOT NULL ,
  [JOB_GROUP] [NVARCHAR] (150)  NOT NULL ,
  [DESCRIPTION] [NVARCHAR] (250) NULL ,
  [NEXT_FIRE_TIME] [BIGINT] NULL ,
  [PREV_FIRE_TIME] [BIGINT] NULL ,
  [PRIORITY] [INTEGER] NULL ,
  [TRIGGER_STATE] [NVARCHAR] (16)  NOT NULL ,
  [TRIGGER_TYPE] [NVARCHAR] (8)  NOT NULL ,
  [START_TIME] [BIGINT] NOT NULL ,
  [END_TIME] [BIGINT] NULL ,
  [CALENDAR_NAME] [NVARCHAR] (200)  NULL ,
  [MISFIRE_INSTR] [INTEGER] NULL ,
  [JOB_DATA] [VARBINARY](MAX) NULL
)
GO

ALTER TABLE [dbo].[QRTZ_CALENDARS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_CALENDARS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [CALENDAR_NAME]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_CRON_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_FIRED_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_FIRED_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [ENTRY_ID]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_PAUSED_TRIGGER_GRPS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_PAUSED_TRIGGER_GRPS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_SCHEDULER_STATE] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_SCHEDULER_STATE] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [INSTANCE_NAME]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_LOCKS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_LOCKS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [LOCK_NAME]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_JOB_DETAILS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_JOB_DETAILS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [JOB_NAME],
    [JOB_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_SIMPLE_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_SIMPROP_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_TRIGGERS] WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].QRTZ_BLOB_TRIGGERS WITH NOCHECK ADD
  CONSTRAINT [PK_QRTZ_BLOB_TRIGGERS] PRIMARY KEY  CLUSTERED
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) 
GO

ALTER TABLE [dbo].[QRTZ_CRON_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_CRON_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) REFERENCES [dbo].[QRTZ_TRIGGERS] (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) ON DELETE CASCADE
GO

ALTER TABLE [dbo].[QRTZ_SIMPLE_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_SIMPLE_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) REFERENCES [dbo].[QRTZ_TRIGGERS] (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) ON DELETE CASCADE
GO

ALTER TABLE [dbo].[QRTZ_SIMPROP_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_SIMPROP_TRIGGERS_QRTZ_TRIGGERS] FOREIGN KEY
  (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) REFERENCES [dbo].[QRTZ_TRIGGERS] (
    [SCHED_NAME],
    [TRIGGER_NAME],
    [TRIGGER_GROUP]
  ) ON DELETE CASCADE
GO

ALTER TABLE [dbo].[QRTZ_TRIGGERS] ADD
  CONSTRAINT [FK_QRTZ_TRIGGERS_QRTZ_JOB_DETAILS] FOREIGN KEY
  (
    [SCHED_NAME],
    [JOB_NAME],
    [JOB_GROUP]
  ) REFERENCES [dbo].[QRTZ_JOB_DETAILS] (
    [SCHED_NAME],
    [JOB_NAME],
    [JOB_GROUP]
  )
GO

CREATE INDEX IDX_QRTZ_T_J ON QRTZ_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_T_JG ON QRTZ_TRIGGERS(SCHED_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_T_C ON QRTZ_TRIGGERS(SCHED_NAME,CALENDAR_NAME)
CREATE INDEX IDX_QRTZ_T_G ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP)
CREATE INDEX IDX_QRTZ_T_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_N_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_N_G_STATE ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_GROUP,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_NEXT_FIRE_TIME ON QRTZ_TRIGGERS(SCHED_NAME,NEXT_FIRE_TIME)
CREATE INDEX IDX_QRTZ_T_NFT_ST ON QRTZ_TRIGGERS(SCHED_NAME,TRIGGER_STATE,NEXT_FIRE_TIME)
CREATE INDEX IDX_QRTZ_T_NFT_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME)
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_STATE)
CREATE INDEX IDX_QRTZ_T_NFT_ST_MISFIRE_GRP ON QRTZ_TRIGGERS(SCHED_NAME,MISFIRE_INSTR,NEXT_FIRE_TIME,TRIGGER_GROUP,TRIGGER_STATE)

CREATE INDEX IDX_QRTZ_FT_TRIG_INST_NAME ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME)
CREATE INDEX IDX_QRTZ_FT_INST_JOB_REQ_RCVRY ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,INSTANCE_NAME,REQUESTS_RECOVERY)
CREATE INDEX IDX_QRTZ_FT_J_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_FT_JG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,JOB_GROUP)
CREATE INDEX IDX_QRTZ_FT_T_G ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_NAME,TRIGGER_GROUP)
CREATE INDEX IDX_QRTZ_FT_TG ON QRTZ_FIRED_TRIGGERS(SCHED_NAME,TRIGGER_GROUP)
GO

View Code

在Sqlserver管理器中新建查詢，貼上上邊的指令碼，執行即可生成Quartz的資料庫表，資料庫的結構如下：

第二部：配置QuartzFactory屬性，直接看程式碼：

    class Program
    {
        public static void Main(string[] args)
        {
            NameValueCollection pars = new NameValueCollection
            {
                //scheduler名字
                ["quartz.scheduler.instanceName"] = "MyScheduler",
                //執行緒池個數
                ["quartz.threadPool.threadCount"] = "20",
                //型別為JobStoreXT,事務
                ["quartz.jobStore.type"] = "Quartz.Impl.AdoJobStore.JobStoreTX, Quartz",
                //JobDataMap中的資料都是字串
                //["quartz.jobStore.useProperties"] = "true",
                //資料來源名稱
                ["quartz.jobStore.dataSource"] = "myDS",
                //資料表名字首
                ["quartz.jobStore.tablePrefix"] = "QRTZ_",
                //使用Sqlserver的Ado操作代理類
                ["quartz.jobStore.driverDelegateType"] = "Quartz.Impl.AdoJobStore.SqlServerDelegate, Quartz",
                //資料來源連線字串
                ["quartz.dataSource.myDS.connectionString"] = "Server=[yourserver];Database=quartzDb;Uid=sa;Pwd=[yourpass]",
                //資料來源的資料庫
                ["quartz.dataSource.myDS.provider"] = "SqlServer",
                //序列化型別
                ["quartz.serializer.type"] = "json",//binary
                //自動生成scheduler例項ID，主要為了保證叢集中的例項具有唯一標識
                ["quartz.scheduler.instanceId"] = "AUTO",
                //是否配置叢集
                ["quartz.jobStore.clustered"] = "true",
            };
            StdSchedulerFactory factory = new StdSchedulerFactory(pars);
            IScheduler scheduler = factory.GetScheduler().Result;
            scheduler.Start();
            IJobDetail job = JobBuilder.Create<MyJob>()
                .WithIdentity("job1", "g1")
                .Build();
            ITrigger trigger = TriggerBuilder.Create().WithIdentity("trigger1", "g1").WithCronSchedule("0/1 * * * * ?").Build();
            if (scheduler.CheckExists(job.Key).Result)
            {
                scheduler.DeleteJob(job.Key).Wait();
            }
            scheduler.ScheduleJob(job, trigger).Wait();
        }
    }

    public class MyJob : IJob
    {
        public async Task Execute(IJobExecutionContext context)
        {
            await Task.Run(() =>
            {
                Console.WriteLine($"hello! 當前時間：{DateTime.Now}");
                Console.WriteLine($"觸發時間：{context.ScheduledFireTimeUtc?.LocalDateTime},下次觸發時間：{context.NextFireTimeUtc?.LocalDateTime}");
                Console.WriteLine();

            });
        }
    }

　　上邊的程式碼配置資訊在程式碼中都有註釋，這個栗子實現了一個簡單的任務排程：每秒列印一次任務的觸發時間和下次觸發時間。然後執行專案即可，到這裡Db持久化和叢集都配置完成了。執行程式Quartz會自動在資料庫中記錄排程任務相關的資料

Quartz自動向資料庫寫入的trigger資訊：

Quartz自動向資料庫寫入的Job資訊：

程式執行結果：

到這裡我們看到了Db持久化已經實現了，但是上邊的栗子，我們在程式碼中通過 ["quartz.jobStore.clustered"] = "true" 配置了叢集，這個有什麼用呢？

首先新增一個debug資料夾的副本

然後執行這兩個資料夾下的xxx.exe檔案（如果使用的是.net core，生成的是xxx.dll檔案,進入dll檔案所在目錄，命令列執行 dotnet xxx.dll 即可啟動）,執行結果如下：

　　如上所示，執行兩個xxx.exe（core中是dll）後，原檔案和副本在同一時間只有一個在執行，所以我們排程的任務沒有重複執行。如果我們關掉正在執行的那個程式，那麼另一個程式會開始執行。我們可以得出結論：Quartz的叢集並不會造成任務重複執行，而且當一個伺服器掛了後，另一個伺服器會自動開始執行，這種機制大大增加了任務排程的容災效能。

3.一些需要注意的地方

1.Quartz3.x支援async和await，為提高效能，我們最好將Job中的Execute方法都寫成非同步方法；

2.不管使用的是RAMJobStore還是AdoJobStore，千萬不要通過程式碼來直接操作JobStore（比如我們直接通過程式碼修改資料庫中的資料），JobStore讓Quartz自動操作即可。無論使用場景是web應用還是桌面程式，我們只使用Scheduler提供的介面方法來實現Job和Trigger等的增/刪/改/查/暫停/恢復即可。

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