• 数据库性能工具
    • 选项
    • 使用方法

    数据库性能工具

    sdbtop 是一个 SequoiaDB 数据库的性能监控工具。通过 sdbtop,可以监控和查看集群中各个节点的监视信息。

    选项

    参数缩写描述
    —help-h返回基本帮助和用法文本
    —confpath-csdbtop 的配置文件,sdbtop 界面形态以及输出字段都依赖该文件(缺省使用默认配置文件)
    —hostname-i指定需要监控的主机名
    —servicename-s指定监控的端口服务名
    —usrname-u数据库用户名
    —password-p数据库密码,指定值则使用明文输入,不指定值则命令行提示输入
    —cipher使用加密文件输入密码,默认为 false
    —token加密口令
    —cipherfile加密文件,默认为 ./passwd
    —ssl使用 SSL 连接

    Note:

    • 对于 Ubuntu 等系统,需要安装 Ncurses 库,否则将会提示“Error opening terminal: TERM”

      • 方式一: 联网安装

        1. $ sudo apt-get install libncurses5-dev
      • 方式二: 源码安装

        解压源码包:

        1. $ tar -xvzf ncurses-5.5.tar.gz

        进入 ncurses-5.5 目录

        1. $ ./configure $ sudo make && make install

    使用方法

    在下面的例子,sdbtop 使用配置文件为“/opt/sequoiadb/conf/samples/sdbtop.xml”,监控主机名为 hostname1,端口服务名为 11810,用户名为 test,密码为 test 的数据库集群中的一个节点。

    1. $ sdbtop -c /opt/sequoiadb/conf/samples/sdbtop.xml -i hostname1 -s 11810 -u test -p test

    接着进入主窗口:

    1. refresh= 3 secs sdbtop 1.0 snapshotMode: GLOBAL
    2. displayMode: ABSOLUTE Main Window snapshotModeInput: NULL
    3. hostname: hostname1 filtering Number: 0
    4. servicename: 11810 sortingWay: NULL sortingField: NULL
    5. usrName: test Refresh: F5, Quit: q, Help: h
    6.  
    7. ##### ###### ###### ####### ##### ###### For help type h or ...
    8. # # # # # # # # # # sdbtop -h: usage
    9. # # # # # # # # # #
    10. ##### # # ###### # # # ######
    11. # # # # # # # # #
    12. # # # # # # # # #
    13. ##### ###### ###### # ##### #
    14.  
    15. SDB Interactive Snapshot Monitor V2.0
    16. Use these keys to navigate:
    17. m - Main Window s - Sessions c - CollectionSpaces
    18. t - System d - Database G - GLOBAL_SNAPSHOT
    19. g - GROUP_SNAPSHOT n - NODE_SNAPSHOT r - reset refreshInterval
    20. A - Ascending order D - Descending order C - filter condition
    21. Q - no filter condition N - filter number W - no filter number
    22. Licensed Materials - Property of SequoiaDB
    23. Copyright SequoiaDB Corp. 2013-2014 All Rights Reserved.

    Note:

    在主窗口中按“h”键可以查看所有工具支持的按键

    主窗口按键说明

    按键描述
    m返回主窗口
    s列出数据库节点上的所有会话
    c列出数据库节点上的所有集合空间
    t列出数据库节点上的系统资源使用情况
    d列出数据库节点的数据库监视信息
    Gglobal_snapshot,监控所有的数据节点组
    ggroup_snapshot,指定监控某个数据节点组
    nnode_snapshot,列出指定的数据库节点的监视信息
    r设置刷屏的时间间隔,单位:秒
    A将监视信息按照某列进行顺序排序
    D将监视信息按照某列进行逆序排序
    C将监视信息按照某个条件进行筛选
    Q返回没有使用条件进行筛选前的监视信息
    N将监视信息中对应行号的记录过滤不显示
    W返回没有使用行号进行过滤前的监视信息
    h查看使用帮助
    取消已进入的操作
    返回上一次监视界面,(在已进入 help 帮助输出中有效)
    强制刷新后台监视信息
    <向左移动,以查看隐藏的左边列的监视信息
    >向右移动,以查看隐藏的右边列的监视信息
    q退出程序
    切换数据计算的模式(绝对值,平均值,差值三个模式)

    例子

    • 进入主窗口后,按“s”键,列出数据库节点的所有会话信息
    1. refresh= 3 secs sdbtop 1.0 snapshotMode: GLOBAL
    2. displayMode: ABSOLUTE Sessions snapshotModeInput: NULL
    3. hostname: hostname1 filtering Number: 0
    4. servicename: 11810 sortingWay: NULL sortingField: NULL
    5. usrName: test Refresh: F5, Quit: q, Help: h
    6.  
    7. SessionID TID Type Name
    8. ------------------------------ ---------- ------------------ ------------------------------
    9. 1 hostname1:11820:1 10732 LogWriter ""
    10. 2 hostname1:11820:10 10741 Task Job[Prefetcher]
    11. 3 hostname1:11820:11 10742 Task Job[Prefetcher]
    12. 4 hostname1:11820:12 10743 Task Job[Prefetcher]
    13. 5 hostname1:11820:13 10744 Cluster ""
    14. 6 hostname1:11820:14 10745 ClusterShard ""
    15. 7 hostname1:11820:15 10746 ClusterLogNotify ""
    16. 8 hostname1:11820:16 10747 ShardReader ""
    17. 9 hostname1:11820:17 10748 ReplReader ""
    18. 10 hostname1:11820:18 10749 SyncClockWorker ""
    19. 11 hostname1:11820:19 10750 TCPListener ""
    20. 12 hostname1:11820:2 10733 DpsRollback ""
    21. 13 hostname1:11820:20 10751 RestListener ""
    22. 14 hostname1:11820:21 10752 Task Job[PageCleaner]
    23. 15 hostname1:11820:3 10734 Task Job[Prefetcher]
    24. 16 hostname1:11820:4 10735 Task Job[Prefetcher]
    25. 17 hostname1:11820:42 10847 ReplAgent NodeID:1000,TID:1,Start:active
    26. 18 hostname1:11820:5 10736 Task Job[Prefetcher]
    27. 19 hostname1:11820:59 23263 ShardAgent NetID:1,TID:23262
    28. 20 hostname1:11820:6 10737 Task Job[Prefetcher]
    29. 21 hostname1:11820:7 10738 Task Job[Prefetcher]
    30. 22 hostname1:11820:8 10739 Task Job[Prefetcher]
    • 按“Tab”键,可以看到屏幕左上方的“displayMode”的值会发生切换

    • 按“r”键,在屏幕最下方输入“2”,回车,设置刷新间隔时间,可以看到屏幕左上方的“refresh”的值变为 2

    1. refresh= 2 secs sdbtop 1.0 snapshotMode: GLOBAL
    2. displayMode: ABSOLUTE Sessions snapshotModeInput: NULL
    3. hostname: hostname1 filtering Number: 0
    4. servicename: 11810 sortingWay: NULL sortingField: NULL
    5. usrName: test Refresh: F5, Quit: q, Help: h
    6.  
    7. SessionID TID Type Name
    8. ------------------------------ ---------- ------------------ ------------------------------
    9. 1 hostname1:11820:1 10732 LogWriter ""
    10. 2 hostname1:11820:10 10741 Task Job[Prefetcher]
    11. 3 hostname1:11820:11 10742 Task Job[Prefetcher]
    12. 4 hostname1:11820:12 10743 Task Job[Prefetcher]
    13. 5 hostname1:11820:13 10744 Cluster ""
    14. 6 hostname1:11820:14 10745 ClusterShard ""
    15. 7 hostname1:11820:15 10746 ClusterLogNotify ""
    16. 8 hostname1:11820:16 10747 ShardReader ""
    17. 9 hostname1:11820:17 10748 ReplReader ""
    18. 10 hostname1:11820:18 10749 SyncClockWorker ""
    19. 11 hostname1:11820:19 10750 TCPListener ""
    20. 12 hostname1:11820:2 10733 DpsRollback ""
    21. 13 hostname1:11820:20 10751 RestListener ""
    22. 14 hostname1:11820:21 10752 Task Job[PageCleaner]
    23. 15 hostname1:11820:3 10734 Task Job[Prefetcher]
    24. 16 hostname1:11820:4 10735 Task Job[Prefetcher]
    25. 17 hostname1:11820:42 10847 ReplAgent NodeID:1000,TID:1,Start:active
    26. 18 hostname1:11820:5 10736 Task Job[Prefetcher]
    27. 19 hostname1:11820:59 23263 ShardAgent NetID:1,TID:23262
    28. 20 hostname1:11820:6 10737 Task Job[Prefetcher]
    29. 21 hostname1:11820:7 10738 Task Job[Prefetcher]
    30. 22 hostname1:11820:8 10739 Task Job[Prefetcher]
    • 按“A”键,并输入“TID”,列表结果按照 TID 进行顺序排序
    1. refresh= 2 secs sdbtop 1.0 snapshotMode: GLOBAL
    2. displayMode: ABSOLUTE Sessions snapshotModeInput: NULL
    3. hostname: hostname1 filtering Number: 0
    4. servicename: 11810 sortingWay: NULL sortingField: NULL
    5. usrName: test Refresh: F5, Quit: q, Help: h
    6.  
    7. SessionID TID Type Name
    8. ------------------------------ ---------- ------------------ ------------------------------
    9. 1 hostname1:11820:1 10732 LogWriter ""
    10. 2 hostname1:11820:10 10741 Task Job[Prefetcher]
    11. 3 hostname1:11820:11 10742 Task Job[Prefetcher]
    12. 4 hostname1:11820:12 10743 Task Job[Prefetcher]
    13. 5 hostname1:11820:13 10744 Cluster ""
    14. 6 hostname1:11820:14 10745 ClusterShard ""
    15. 7 hostname1:11820:15 10746 ClusterLogNotify ""
    16. 8 hostname1:11820:16 10747 ShardReader ""
    17. 9 hostname1:11820:17 10748 ReplReader ""
    18. 10 hostname1:11820:18 10749 SyncClockWorker ""
    19. 11 hostname1:11820:19 10750 TCPListener ""
    20. 12 hostname1:11820:2 10733 DpsRollback ""
    21. 13 hostname1:11820:20 10751 RestListener ""
    22. 14 hostname1:11820:21 10752 Task Job[PageCleaner]
    23. 15 hostname1:11820:3 10734 Task Job[Prefetcher]
    24. 16 hostname1:11820:4 10735 Task Job[Prefetcher]
    25. 17 hostname1:11820:42 10847 ReplAgent NodeID:1000,TID:1,Start:active
    26. 18 hostname1:11820:5 10736 Task Job[Prefetcher]
    27. 19 hostname1:11820:59 23263 ShardAgent NetID:1,TID:23262
    28. 20 hostname1:11820:6 10737 Task Job[Prefetcher]
    29. 21 hostname1:11820:7 10738 Task Job[Prefetcher]
    30. please input the displayName which need order by asc : TID
    • 按“N”键,并输入“1”,列表中将原来行号为 1 的记录过滤不显示

    • 按“W”键,返回没有按行号进行过滤前的列表信息

    • 按“C”键,并输入“TID:10732”进行筛选,则只显示 TID 值为 10732 的记录

    1. refresh= 2 secs sdbtop 1.0 snapshotMode: GLOBAL
    2. displayMode: ABSOLUTE Sessions snapshotModeInput: NULL
    3. hostname: hostname1 filtering Number: 0
    4. servicename: 11810 sortingWay: NULL sortingField: NULL
    5. usrName: test Refresh: F5, Quit: q, Help: h
    6.  
    7. SessionID TID Type Name
    8. ------------------------------ ---------- ------------------ ------------------------------
    9. 1 hostname1:11820:1 10732 LogWriter ""
    10. 2 hostname1:11820:10 10741 Task Job[Prefetcher]
    11. 3 hostname1:11820:11 10742 Task Job[Prefetcher]
    12. 4 hostname1:11820:12 10743 Task Job[Prefetcher]
    13. 5 hostname1:11820:13 10744 Cluster ""
    14. 6 hostname1:11820:14 10745 ClusterShard ""
    15. 7 hostname1:11820:15 10746 ClusterLogNotify ""
    16. 8 hostname1:11820:16 10747 ShardReader ""
    17. 9 hostname1:11820:17 10748 ReplReader ""
    18. 10 hostname1:11820:18 10749 SyncClockWorker ""
    19. 11 hostname1:11820:19 10750 TCPListener ""
    20. 12 hostname1:11820:2 10733 DpsRollback ""
    21. 13 hostname1:11820:20 10751 RestListener ""
    22. 14 hostname1:11820:21 10752 Task Job[PageCleaner]
    23. 15 hostname1:11820:3 10734 Task Job[Prefetcher]
    24. 16 hostname1:11820:4 10735 Task Job[Prefetcher]
    25. 17 hostname1:11820:42 10847 ReplAgent NodeID:1000,TID:1,Start:active
    26. 18 hostname1:11820:5 10736 Task Job[Prefetcher]
    27. 19 hostname1:11820:59 23263 ShardAgent NetID:1,TID:23262
    28. 20 hostname1:11820:6 10737 Task Job[Prefetcher]
    29. 21 hostname1:11820:7 10738 Task Job[Prefetcher]
    30. please input the filter condition : TID:10732
    • 按“Q”键,返回没有按照筛选条件前的列表信息

    • 按“<”或者“>”键,可以查看隐藏在左边或者右边的列