设为首页 收藏本站
查看: 1631|回复: 0

[经验分享] 开源项目:高级SQL Server监控、性能图、分析与优化、版本控制

[复制链接]

尚未签到

发表于 2015-6-27 06:08:07 | 显示全部楼层 |阅读模式
  这是一个相当高级的SQL Server监控工具,全面监控SQL Server的活动与性能,分析性能瓶颈,给出优化建议。
  
  red-gate有一个在线的数据库监控工具,不过那个商业的东西价钱不便宜。我写的这个平民版,开源,功能上有颇多的差异(各有长短)。
  
  项目在Codeplex上开源:http://sqlmon.codeplex.com/
  
  在Codeproject上有英文介绍:http://www.codeproject.com/KB/database/sqlmonitor.aspx

介绍
  是否想过:“SQL Server为什么那么慢?”,“为什么CPU占用那么高?”,“到底哪里死锁了?”,“为什么数据库那么大?”,“怎样才可以查看我的存储过程和函数的历史版本?”,“可以让我的SQL Server跑得更快吗?”。
  
  你的答案就在这里;-)
  
到底能干嘛

  • 监控SQL Server的活动:进程、任务,详细查看当前执行的语句与实际变量值,终止进程
  • IO/CPU/网络等性能趋势图
  • 函数/存储过程等的版本控制,这在商业软件中也没有(如果你知道,告诉我)
  • 对象浏览器:服务器、数据库、表、视图、函数、存储过程等
  • 数据库管理:收缩、日志清除、备份、恢复等
  • 在整个数据库中搜索对象/脚本内容,这在SQL Server 2012中也无法做到
  • 自动显示所有对象的脚本,如表、视图、函数、存储过程等
  
概览
  
DSC0000.gif   
  在上图中,我们可以看见表的create脚本。如果你选择其它对象,如函数、存储过程等,一样会显示相应的脚本。
  
  在对象列表中,如果是数据表,显示表的占用空间(包括索引)、记录数等。
  
  这些在SQL Server 2012中都没有。
  
  获取数据库信息
  
  

DSC0001.gif DSC0002.jpg View Code

SELECT DB_NAME(database_id) AS DatabaseName, Name AS Logical_Name, Physical_Name, CAST(size AS decimal(30,0))*8 AS Size, state FROM sys.master_files WHERE DB_NAME(database_id) = 'YOUR_DATABASE_NAME'   
  对象/脚本搜索
  
  

View Code

--search in script
Select s.name, s.create_date AS CreateDate, s.modify_date AS ModifyDate, s.type, c.text from syscomments c left join sys.objects s on c.id = s.object_id where [Text] like '%YOUR_QUERY_HERE%'
--search in jobs
SELECT job_id, name, date_created AS CreateDate, date_modified AS ModifyDate, 'Job' AS type FROM msdb.dbo.sysjobs  
  
  获取表结构
  
  


--To get table names and records
SELECT
    [TableName] = so.name,
    [RowCount] = MAX(si.rows)
FROM
    sysobjects so,
    sysindexes si
WHERE
    so.xtype = 'U'
    AND
    si.id = OBJECT_ID(so.name)
GROUP BY
    so.name
--To get table used space
EXEC sp_spaceused 'TABLE_NAME'
--To get table script
declare @Id int, @i int, @i2 int,@Sql varchar(max),@Sql2 varchar(max), @f1 varchar(5), @f2 varchar(5), @f3 varchar(5), @f4 varchar(5), @T varchar(5)
    select @Id=object_id('YOUR_TABLE_NAME_HERE'), @f1 = char(13) + char(10), @f2 = '    ', @f3=@f1+@f2, @f4=',' + @f3
   
    if not(@Id is null)
    BEGIN
    declare @Data table(Id int identity primary key, D varchar(max) not null, ic int null, re int null, o int not null);
   
    -- Columns
    with c as(
        select c.column_id, Nr = row_number() over(order by c.column_id), Clr=count(*) over(),
            D = quotename(c.name) + ' ' +
                case when s.name = 'sys' or c.is_computed=1 then '' else quotename(s.name) + '.' end +
                case when c.is_computed=1 then '' when s.name = 'sys' then t.Name else quotename(t.name) end +
                case when c.user_type_id!=c.system_type_id or c.is_computed=1 then ''
                    when t.Name in ('xml', 'uniqueidentifier', 'tinyint', 'timestamp', 'time', 'text', 'sysname', 'sql_variant', 'smallmoney', 'smallint', 'smalldatetime', 'ntext', 'money',
                                    'int', 'image', 'hierarchyid', 'geometry', 'geography', 'float', 'datetimeoffset', 'datetime2', 'datetime', 'date', 'bigint', 'bit') then ''
                    when t.Name in('varchar','varbinary', 'real', 'numeric', 'decimal', 'char', 'binary')
                        then '(' + isnull(convert(varchar,nullif(c.max_length,-1)), 'max') + isnull(','+convert(varchar,nullif(c.scale, 0)), '') + ')'
                    when t.Name in('nvarchar','nchar')
                        then '(' + isnull(convert(varchar,nullif(c.max_length,-1) / 2), 'max') + isnull(','+convert(varchar,nullif(c.scale, 0)), '') + ')'
                    else '??'
                    end +
                case when ic.object_id is not null then ' identity(' + convert(varchar,ic.seed_value) + ',' + convert(varchar,ic.increment_value) + ')' else '' end +
                case when c.is_computed=1 then 'as' + cc.definition when c.is_nullable = 1 then ' null' else ' not null' end +
                case c.is_rowguidcol when 1 then ' rowguidcol' else '' end +
                case when d.object_id is not null then ' default ' + d.definition else  '' end
        from sys.columns c
        inner join sys.types t
        on t.user_type_id = c.user_type_id
        inner join sys.schemas s
        on s.schema_id=t.schema_id
        left outer join sys.computed_columns cc
        on cc.object_id=c.object_id and cc.column_id=c.column_id
        left outer join sys.default_constraints d
        on d.parent_object_id=@id and d.parent_column_id=c.column_id
        left outer join sys.identity_columns ic
        on ic.object_id=c.object_id and ic.column_id=c.column_id
        where c.object_id=@Id
        
    )
        insert into @Data(D, o)
        select '    ' + D + case Nr when Clr then '' else ',' + @f1 end, 0
        from c where NOT D IS NULL
        order by column_id
   
    -- SubObjects
    set @i=0
    while 1=1
        begin
        select top 1 @i=c.object_id, @T = c.type, @i2=i.index_id
        from sys.objects c
        left outer join sys.indexes i
        on i.object_id=@Id and i.name=c.name
        where parent_object_id=@Id and c.object_id>@i and c.type not in('D')
        order by c.object_id
        if @@rowcount=0 break
        if @T = 'C'
            insert into @Data
            select @f4 + 'check ' + case is_not_for_replication when 1 then 'not for replication ' else '' end + definition, null, null, 10
            from sys.check_constraints where object_id=@i
        else if @T = 'Pk'
            insert into @Data
            select @f4 + 'primary key' + isnull(' ' + nullif(lower(i.type_desc),'clustered'), ''), @i2, null, 20
            from sys.indexes i
            where i.object_id=@Id and i.index_id=@i2
        else if @T = 'uq'
            insert into @Data values(@f4 + 'unique', @i2, null, 30)
        else if @T = 'f'
            begin
            insert into @Data
            select @f4 + 'foreign key', -1, @i, 40
            from sys.foreign_keys f
            where f.object_id=@i
            
            insert into @Data
            select ' references ' + quotename(s.name) + '.' + quotename(o.name), -2, @i, 41
            from sys.foreign_keys f
            inner join sys.objects o
            on o.object_id=f.referenced_object_id
            inner join sys.schemas s
            on s.schema_id=o.schema_id
            where f.object_id=@i
            
            insert into @Data
            select ' not for replication', -3, @i, 42
            from sys.foreign_keys f
            inner join sys.objects o
            on o.object_id=f.referenced_object_id
            inner join sys.schemas s
            on s.schema_id=o.schema_id
            where f.object_id=@i and f.is_not_for_replication=1
            end
        else
            insert into @Data values(@f4 + 'Unknow SubObject [' + @T + ']', null, null, 99)
        end
    insert into @Data values(@f1+')', null, null, 100)
   
    -- Indexes
    insert into @Data
    select @f1 + 'create ' + case is_unique when 1 then 'unique ' else '' end + lower(s.type_desc) + ' index ' + 'i' + convert(varchar, row_number() over(order by index_id)) + ' on ' + quotename(sc.Name) + '.' + quotename(o.name), index_id, null, 1000
    from sys.indexes s
    inner join sys.objects o
    on o.object_id=s.object_id
    inner join sys.schemas sc
    on sc.schema_id=o.schema_id
    where s.object_id=@Id and is_unique_constraint=0 and is_primary_key=0 and s.type_desc != 'heap'
   
    -- columns
    set @i=0
    while 1=1
        begin
        select top 1 @i=ic from @Data where ic>@i order by ic
        if @@rowcount=0 break
        select @i2=0, @Sql=null, @Sql2=null
        while 1=1
            begin
            select @i2=index_column_id,
                @Sql = case c.is_included_column when 1 then @Sql else isnull(@Sql + ', ', '(') + cc.Name + case c.is_descending_key when 1  then ' desc' else '' end end,
                @Sql2 = case c.is_included_column when 0 then @Sql2 else isnull(@Sql2 + ', ', '(') + cc.Name + case c.is_descending_key when 1  then ' desc' else '' end end
            from sys.index_columns c
            inner join sys.columns cc
            on c.column_id=cc.column_id and cc.object_id=c.object_id
            where c.object_id=@Id and index_id=@i and index_column_id>@i2
            order by index_column_id
            if @@rowcount=0 break
            end
        update @Data set D=D+@Sql +')' + isnull(' include' + @Sql2 + ')', '') where ic=@i
        end
        
    -- references
    set @i=0
    while 1=1
        begin
        select top 1 @i=re from @Data where re>@i order by re
        if @@rowcount=0 break
        
        select @i2=0, @Sql=null, @Sql2=null
        while 1=1
            begin
            select @i2=f.constraint_column_id,
                @Sql = isnull(@Sql + ', ', '(') + c1.Name,
                @Sql2 = isnull(@Sql2 + ', ', '(') + c2.Name
            from sys.foreign_key_columns f
            inner join sys.columns c1
            on c1.column_id=f.parent_column_id and c1.object_id=f.parent_object_id
            inner join sys.columns c2
            on c2.column_id=f.referenced_column_id and c2.object_id=f.referenced_object_id
            where f.constraint_object_id=@i and f.constraint_column_id>@i2
            order by f.constraint_column_id
            if @@rowcount=0 break
            end
        update @Data set D = D + @Sql + ')'  where re=@i and ic=-1
        update @Data set D = D + @Sql2 + ')'  where re=@i and ic=-2
        end;
   
    -- Render
    with x as(
        select id=d.id-1, D=d.D + isnull(d2.D,'')
        from @Data d
        left outer join @Data d2
        on d.re=d2.re and d2.o=42
        where d.o=41
        
    )
    update @Data
        set D=d.D+x.D
    from @Data d
    inner join x
    on x.id=d.id
   
    delete @Data where o in(41, 42)
   
    select @Sql = 'create table ' + quotename(s.name) + '.' + quotename(o.name) + '(' + @f1
    from sys.objects o
    inner join sys.schemas s
    on o.schema_id = s.schema_id
    where o.object_id=@Id
   
    set @i=0
    while 1=1
        begin
        select top 1 @I=Id, @Sql = @Sql + D from @Data order by o, case when o=0 then right('0000' + convert(varchar,id),5)  else D end, id
        if @@rowcount=0 break
        delete @Data where id=@i
        end
    END
    SELECT @Sql  
  
性能趋势图
  
DSC0003.jpg
  
  在上图中,我们可以看见SQL Server历史/当前的IO/CPU/网络信息都在趋势图中显示。
  
  这些数据来自几个系统变量:
  

  • @@cpu_busy
  • @@io_busy
  • @@idle
  • @@pack_received
  • @@pack_sent
  • @@connections
  • @@packet_errors
  • @@total_read
  • @@total_write
  • @@total_errors
  
  以下是相应的SQL:
  


declare @now         datetime
declare @cpu_busy     int
declare @io_busy    int
declare @idle        int
declare @pack_received    int
declare @pack_sent    int
declare @pack_errors    int
declare @connections    int
declare @total_read    int
declare @total_write    int
declare @total_errors    int

declare @oldcpu_busy     int    /* used to see if DataServer has been rebooted */
declare @interval    int
declare @mspertick    int    /* milliseconds per tick */


/*
**  Set @mspertick.  This is just used to make the numbers easier to handle
**  and avoid overflow.
*/
select @mspertick = convert(int, @@timeticks / 1000.0)

/*
**  Get current monitor values.
*/
select
    @now = getdate(),
    @cpu_busy = @@cpu_busy,
    @io_busy = @@io_busy,
    @idle = @@idle,
    @pack_received = @@pack_received,
    @pack_sent = @@pack_sent,
    @connections = @@connections,
    @pack_errors = @@packet_errors,
    @total_read = @@total_read,
    @total_write = @@total_write,
    @total_errors = @@total_errors

/*
**  Check to see if DataServer has been rebooted.  If it has then the
**  value of @@cpu_busy will be less than the value of spt_monitor.cpu_busy.
**  If it has update spt_monitor.
*/
select @oldcpu_busy = cpu_busy
    from master.dbo.spt_monitor
if @oldcpu_busy > @cpu_busy
begin
    update master.dbo.spt_monitor
        set
            lastrun = @now,
            cpu_busy = @cpu_busy,
            io_busy = @io_busy,
            idle = @idle,
            pack_received = @pack_received,
            pack_sent = @pack_sent,
            connections = @connections,
            pack_errors = @pack_errors,
            total_read = @total_read,
            total_write = @total_write,
            total_errors = @total_errors
end

/*
**  Now print out old and new monitor values.
*/
set nocount on
select @interval = datediff(ss, lastrun, @now)
    from master.dbo.spt_monitor
/* To prevent a divide by zero error when run for the first
** time after boot up
*/
if @interval = 0
    select @interval = 1
select last_run = lastrun, current_run = @now, seconds = @interval,
    cpu_busy_total = convert(int, ((@cpu_busy * @mspertick) / 1000)),
    cpu_busy_current = convert(int, (((@cpu_busy - cpu_busy)
        * @mspertick) / 1000)),
    cpu_busy_percentage = convert(int, ((((@cpu_busy - cpu_busy)
        * @mspertick) / 1000) * 100) / @interval),
    io_busy_total = convert(int, ((@io_busy * @mspertick) / 1000)),
    io_busy_current = convert(int, (((@io_busy - io_busy)
        * @mspertick) / 1000)),
    io_busy_percentage = convert(int, ((((@io_busy - io_busy)
        * @mspertick) / 1000) * 100) / @interval),
    idle_total = convert(int, ((convert(bigint,@idle) * @mspertick) / 1000)),
    idle_current = convert(int, (((@idle - idle)
        * @mspertick) / 1000)),
    idle_percentage = convert(int, ((((@idle - idle)
        * @mspertick) / 1000) * 100) / @interval),
    packets_received_total = @pack_received,
    packets_received_current = @pack_received - pack_received,
    packets_sent_total = @pack_sent,
    packets_sent_current = @pack_sent - pack_sent,
    packet_errors_total = @pack_errors,
    packet_errors_current = @pack_errors - pack_errors,
    total_read = @total_read,
    current_read = @total_read - total_read,
    total_write = @total_write,
    current_write =    @total_write - total_write,
    total_errors = @total_errors,
    current_errors = @total_errors - total_errors,
    connections_total = @connections,
    connections_current = @connections - connections
from master.dbo.spt_monitor

/*
**  Now update spt_monitor
*/
update master.dbo.spt_monitor
    set
        lastrun = @now,
        cpu_busy = @cpu_busy,
        io_busy = @io_busy,
        idle = @idle,
        pack_received = @pack_received,
        pack_sent = @pack_sent,
        connections = @connections,
        pack_errors = @pack_errors,
        total_read = @total_read,
        total_write = @total_write,
        total_errors = @total_errors  
  
版本控制
  数据库开发人员总在想,每次修改了函数/存储过程,我们都得自己做备份,用以历史参考,当发现错误的时候,可以回滚。在SQL Monitor里面,这个是全自动的。
  
  版本控制的思想来自这里:http://www.sqlteam.com/article/using-ddl-triggers-in-sql-server-2005-to-capture-schema-changes
  
  原理就是用数据库DDL触发器记录每个DDL操作,自增版本,并存储到一个表中。


  
DSC0004.jpg
  
  关键代码
  
  


SET ANSI_NULLS OFF
GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[VERSION_CONTROL_TABLE]') AND type in (N'U'))
BEGIN
CREATE TABLE [dbo].[{0}](
    [ID] [bigint] IDENTITY(1,1) NOT NULL,
    [databasename] [varchar](256) NULL,
    [eventtype] [varchar](50) NULL,
    [objectname] [varchar](256) NULL,
    [objecttype] [varchar](25) NULL,
    [sqlcommand] [nvarchar](max) NULL,
    [loginname] [varchar](256) NULL,
    [hostname] [varchar](256) NULL,
    [PostTime] [datetime] NULL,
    [Version] [int] NOT NULL,
CONSTRAINT [PK_VERSION_CONTROL_TABLE] PRIMARY KEY CLUSTERED
(
    [ID] ASC
)WITH (IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
END

GO

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE TRIGGER [TRG_VERSION_CONTROL_TABLE}]
ON DATABASE
FOR CREATE_PROCEDURE, ALTER_PROCEDURE, DROP_PROCEDURE,
CREATE_TABLE, ALTER_TABLE, DROP_TABLE,
CREATE_FUNCTION, ALTER_FUNCTION, DROP_FUNCTION,
CREATE_TRIGGER, ALTER_TRIGGER, DROP_TRIGGER,
CREATE_VIEW, ALTER_VIEW, DROP_VIEW,
CREATE_INDEX, ALTER_INDEX, DROP_INDEX

AS

SET NOCOUNT ON

DECLARE @CurrentVersion int
DECLARE @CurrentID int
DECLARE @DatabaseName varchar(256)
DECLARE @ObjectName varchar(256)
DECLARE @data XML

SET @data = EVENTDATA()

INSERT INTO dbo.VERSION_CONTROL_TABLE(databasename, eventtype,objectname, objecttype, sqlcommand, loginname,Hostname,PostTime, Version)
VALUES(
@data.value('(/EVENT_INSTANCE/DatabaseName)[1]', 'varchar(256)'),
@data.value('(/EVENT_INSTANCE/EventType)[1]', 'varchar(50)'),  -- value is case-sensitive
@data.value('(/EVENT_INSTANCE/ObjectName)[1]', 'varchar(256)'),
@data.value('(/EVENT_INSTANCE/ObjectType)[1]', 'varchar(25)'),
@data.value('(/EVENT_INSTANCE/TSQLCommand)[1]', 'varchar(max)'),
@data.value('(/EVENT_INSTANCE/LoginName)[1]', 'varchar(256)'),
HOST_NAME(),
GETDATE(),
0
)

SET @CurrentID = IDENT_CURRENT('VERSION_CONTROL_TABLE')
SELECT @DatabaseName = databasename, @ObjectName = objectname FROM VERSION_CONTROL_TABLE WHERE ID = @CurrentID
IF (@DatabaseName IS NOT NULL AND @ObjectName IS NOT NULL)
BEGIN
    SELECT @CurrentVersion = MAX(Version) FROM VERSION_CONTROL_TABLE WHERE databasename = @DatabaseName AND objectname = @ObjectName
    UPDATE VERSION_CONTROL_TABLE SET Version = ISNULL(@CurrentVersion, 0) + 1 WHERE ID = @CurrentID
END
GO
ENABLE TRIGGER [TRG_VERSION_CONTROL_TABLE] ON DATABASE  
  
  SQL Monitor会全自动给你的所有脚本修改做版本记录。你可以随时查看在什么时候哪个机器用什么身份修改了哪个对象的脚本。
  
DSC0005.jpg
  
  SQL Monitor内置版本比较,你可以清楚知道不同的版本的差异。
  
  
活动监控
  
  
DSC0006.jpg   
  上图清晰显示所有系统的活动进程,每个进程当前执行什么语句。
  
  获取进程列表
  

View Code

--To get processes
SELECT s.session_id AS spid, s.login_time, s.host_name AS hostname, s.host_process_id AS hostprocess, s.login_name AS loginname, s.logical_reads AS physical_io, s.cpu_time AS cpu, s.program_name, 0 AS dbid, s.last_request_start_time AS last_batch_begin, CASE WHEN status = 'running' THEN GETDATE() ELSE dateadd(ms, s.cpu_time, s.last_request_end_time) END AS last_batch_end, s.status FROM sys.dm_exec_sessions s JOIN sys.dm_exec_connections c ON s.session_id = c.session_id  
  
  获取任务列表
  

View Code

--To get jobs
SELECT job_id AS spid, name AS program_name, 0 AS dbid, 0 AS cpu, 0 AS physical_io, NULL AS login_time, NULL AS last_batch_begin, NULL AS last_batch_end, NULL AS status, NULL AS hostname, NULL AS hostprocess, NULL AS cmd, NULL AS loginname FROM msdb.dbo.sysjobs  
  
分析
  这是商业级的数据与性能分析,SQL Monitor自动给你的系统、数据库、数据表、索引等进行分析。
  
  

  
  基本原理是首先利用master.sys.xp_fixeddrives获取磁盘的剩余空间,然后:
  
  


//database & disk free space
        var databases = GetDatabasesInfo();
        var files = new List();
        databases.AsEnumerable().ForEach(d =>
        {
            var database = GetDatabaseInfo(d["name"].ToString());
            database.AsEnumerable().ForEach(f =>
            {
                files.Add(new Tuple(Convert.ToInt32(f["type"]) == 1, f["physical_name"].ToString(), Convert.ToInt64(Convert.ToDecimal(f["Size"]) / Size1K)));
            }
            );
        });
        var spaces = new Dictionary>();
        //MB free
        var driveSpaces = Query("EXEC master.sys.xp_fixeddrives");
        driveSpaces.AsEnumerable().ForEach(s =>
        {
            //could not use name but rather index, because the column name will change according to locale
            spaces.Add(s[0].ToString(), new KeyValue(Convert.ToInt64(s[1]), 0));
        });
        files.ForEach(f =>
        {
            //maybe some access issues
            try
            {
                var drive = f.Item2.Substring(0, 1);
                if (spaces.ContainsKey(drive))
                {
                    spaces[drive].Value += f.Item3;
                }
            }
            catch (Exception)
            {
                //mmmm.....what can we do, mate?
            }
        });
        spaces.ForEach(s =>
        {
            if (s.Value.Key < s.Value.Value / 100 * Settings.Instance.DatabaseDiskFreeSpaceRatio)
            {
                analysisResult.Add(new AnalysisResult { ResultType = AnalysisResultTypes.DiskFreeSpace, ObjectName = s.Key, ReferenceValue = s.Value.Key, CurrentValue = s.Value.Value, Factor = Settings.Instance.DatabaseDiskFreeSpaceRatio + SizePercentage });
            }
        });

        //database data file & log file space
        databases.AsEnumerable().ForEach(d =>
        {
            var name = d["name"].ToString();
            if (!systemDatabases.Contains(name))
            {
                var database = GetDatabaseInfo(name);
                var databaseSpace = new Dictionary { { DatabaseFileTypes.Data, 0 }, { DatabaseFileTypes.Log, 0 } };
                database.AsEnumerable().ForEach(f =>
                {
                    var key = (DatabaseFileTypes)Convert.ToInt32(f["type"]);
                    databaseSpace[key] += Convert.ToInt64(Convert.ToDecimal(f["Size"]) / Size1K);
                }
                );
                bool? shrink = null;
                if (databaseSpace[DatabaseFileTypes.Log] > databaseSpace[DatabaseFileTypes.Data] / 100 * Settings.Instance.DatabaseDataLogSpaceRatio)
                    shrink = false;
                else
                {
                    var logSpaces = SQLHelper.Query("DBCC SQLPERF(LOGSPACE)", GetServerInfo(name));
                    var logSpace = logSpaces.Select(string.Format("[Database Name] = '{0}'", name));
                    if (logSpace.Length > 0)
                    {
                        var logSpacedUsed = Convert.ToDouble(logSpace[0]["Log Space Used (%)"]);
                        if (logSpacedUsed < Settings.Instance.DatabaseDataLogSpaceRatio)
                            shrink = true;
                    }
                }
                if (shrink != null)
                    analysisResult.Add(new AnalysisResult { ResultType = AnalysisResultTypes.DatabaseLogSpace, ObjectName = name, ReferenceValue = databaseSpace[DatabaseFileTypes.Log], CurrentValue = databaseSpace[DatabaseFileTypes.Data], Factor = Settings.Instance.DatabaseDataLogSpaceRatio + SizePercentage, Key = (bool)shrink ? 1 : 0 });
            }
        });  
  对于表空间,使用了sp_spaceused,关键代码:
  


var tables = GetObjects(KeyTables);
tables.AsEnumerable().ForEach(t =>
    {
        var name = t[KeyName].ToString();
        var space = Query(string.Format("EXEC sp_spaceused '{0}'", name), CurrentServerInfo);
        if (space.Rows.Count > 0)
        {
            var row = space.Rows[0];
            var dataSize = ToKB(row["data"]) / Size1K;
            var indexSize = ToKB(row["index_size"]) / Size1K;
            if (indexSize > dataSize / 100 * Settings.Instance.TableDataIndexSpaceRatio)
                analysisResult.Add(new AnalysisResult { ResultType = AnalysisResultTypes.TableIndexSpace, ObjectName = name, ReferenceValue = dataSize, CurrentValue = indexSize, Factor = Settings.Instance.DatabaseDataLogSpaceRatio + SizePercentage, Key = (int)TableIndexSpaceRules.DataIndexSpaceRatio });
        }
    });  
  

  
  

最新版本
  
  http://sqlmon.codeplex.com/releases/view/77943
  

运维网声明 1、欢迎大家加入本站运维交流群:群②:261659950 群⑤:202807635 群⑦870801961 群⑧679858003
2、本站所有主题由该帖子作者发表,该帖子作者与运维网享有帖子相关版权
3、所有作品的著作权均归原作者享有,请您和我们一样尊重他人的著作权等合法权益。如果您对作品感到满意,请购买正版
4、禁止制作、复制、发布和传播具有反动、淫秽、色情、暴力、凶杀等内容的信息,一经发现立即删除。若您因此触犯法律,一切后果自负,我们对此不承担任何责任
5、所有资源均系网友上传或者通过网络收集,我们仅提供一个展示、介绍、观摩学习的平台,我们不对其内容的准确性、可靠性、正当性、安全性、合法性等负责,亦不承担任何法律责任
6、所有作品仅供您个人学习、研究或欣赏,不得用于商业或者其他用途,否则,一切后果均由您自己承担,我们对此不承担任何法律责任
7、如涉及侵犯版权等问题,请您及时通知我们,我们将立即采取措施予以解决
8、联系人Email:admin@iyunv.com 网址:www.yunweiku.com

所有资源均系网友上传或者通过网络收集,我们仅提供一个展示、介绍、观摩学习的平台,我们不对其承担任何法律责任,如涉及侵犯版权等问题,请您及时通知我们,我们将立即处理,联系人Email:kefu@iyunv.com,QQ:1061981298 本贴地址:https://www.yunweiku.com/thread-80850-1-1.html 上篇帖子: SQL Server调优系列玩转篇(如何利用查询提示(Hint)引导语句运行) 下篇帖子: [翻译]使用C#创建SQL Server的存储过程(Visual Studio 2005 + SQL Server 2005)
您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

扫码加入运维网微信交流群X

扫码加入运维网微信交流群

扫描二维码加入运维网微信交流群,最新一手资源尽在官方微信交流群!快快加入我们吧...

扫描微信二维码查看详情

客服E-mail:kefu@iyunv.com 客服QQ:1061981298


QQ群⑦:运维网交流群⑦ QQ群⑧:运维网交流群⑧ k8s群:运维网kubernetes交流群


提醒:禁止发布任何违反国家法律、法规的言论与图片等内容;本站内容均来自个人观点与网络等信息,非本站认同之观点.


本站大部分资源是网友从网上搜集分享而来,其版权均归原作者及其网站所有,我们尊重他人的合法权益,如有内容侵犯您的合法权益,请及时与我们联系进行核实删除!



合作伙伴: 青云cloud

快速回复 返回顶部 返回列表