关于Cacti的Hash值的说明

[原创]个人笔记:关于Cacti的Hash值的说明

源自:杨志刚博客 (http://yangzhigang.cublog.cn/)，如转载请注明来源。

前言：
在Cacti的模板以及数据库中，都可以见到有Hash值，这些值的设计用什么做什么的呢？这些值有什么限定的规则和意义？数据库中不同表之间的hash值有什么关联呢？

正文：
下面先以一个简单的XML文件来说明(文件下载见附件)。
此文件是一个通过snmpv2的MIB OID来取得系统uptime的模板文件,下面解析一下此文件：

 

Line1:  

- line2:  <hash_0000050a7928571d7330f5e9156ad05b24f1d4>

  line3:  <name>SNMPv2-MIB - sysUpTimename>

- line4:  <graph>

  line5:  <t_title>ont_title>

  line6:  <title>|host_hostname| - Uptimetitle>

  line7:  <t_image_format_id />

  line8:  <image_format_id>1image_format_id>

  line9:  <t_height />

  line10: <height>120height>

  line11: <t_width />

  line12: <width>500width>

  line13: <t_auto_scale />

  line14: <auto_scale>onauto_scale>

  line15: <t_auto_scale_opts />

  line16: <auto_scale_opts>2auto_scale_opts>

  line17: <t_auto_scale_log />

  line18: <auto_scale_log />

llline19: <t_auto_scale_rigid />

liline20: <auto_scale_rigid />

liline21: <t_auto_padding />

  line22: <auto_padding>onauto_padding>

  line23: <t_export />

  line24: <export>onexport>

  line25: <t_upper_limit />

  line26: <upper_limit>0upper_limit>

  line27: <t_lower_limit />

  line28: <lower_limit>0lower_limit>

  line29: <t_base_value />

  line30: <base_value>1000base_value>

  line31: <t_unit_value />

  line32: <unit_value />

  line33: <t_unit_exponent_value />

  line34: <unit_exponent_value />

  line35: <t_vertical_label />

  line36: <vertical_label>Daysvertical_label>

line37:  graph>

- <items>

- <hash_100005983796b725494b16f67d739082e8f9d5>

  <task_item_id>hash_0800053f765eaeaf380c6762cf01e44442e53etask_item_id>

  <color_id>7EE600color_id>

  <graph_type_id>7graph_type_id>

  <consolidation_function_id>1consolidation_function_id>

  <cdef_id>hash_050005caababff166448da7a0fb2c2dba04e7ecdef_id>

  <value />

  <gprint_id>hash_060005e9c43831e54eca8069317a2ce8c6f751gprint_id>

  <text_format />

  <hard_return />

  <sequence>1sequence>

  hash_100005983796b725494b16f67d739082e8f9d5>

- <hash_1000055e0267f848d7663c9a55acf4e0f23051>

  <task_item_id>hash_0800053f765eaeaf380c6762cf01e44442e53etask_item_id>

  <color_id>0color_id>

  <graph_type_id>9graph_type_id>

  <consolidation_function_id>4consolidation_function_id>

  <cdef_id>hash_050005caababff166448da7a0fb2c2dba04e7ecdef_id>

  <value />

  <gprint_id>hash_060005e9c43831e54eca8069317a2ce8c6f751gprint_id>

  <text_format>Current:text_format>

  <hard_return />

  <sequence>2sequence>

  hash_1000055e0267f848d7663c9a55acf4e0f23051>

- <hash_100005fe14380f543ce0950e9fade5f5dee2f2>

  <task_item_id>hash_0800053f765eaeaf380c6762cf01e44442e53etask_item_id>

  <color_id>0color_id>

  <graph_type_id>9graph_type_id>

  <consolidation_function_id>3consolidation_function_id>

  <cdef_id>hash_050005caababff166448da7a0fb2c2dba04e7ecdef_id>

  <value />

  <gprint_id>hash_060005e9c43831e54eca8069317a2ce8c6f751gprint_id>

  <text_format>Maximum:text_format>

  <hard_return>onhard_return>

  <sequence>4sequence>

  hash_100005fe14380f543ce0950e9fade5f5dee2f2>

  items>

- <inputs>

- <hash_0900054a961dc5e60993470e67bbef5ce40312>

  <name>Data Source [sysUpTime]name>

  <description />

  <column_name>task_item_idcolumn_name>

  <items>hash_000005983796b725494b16f67d739082e8f9d5|hash_0000055e0267f848d7663c9a55acf4e0f23051|hash_000005fe14380f543ce0950e9fade5f5dee2f2items>

  hash_0900054a961dc5e60993470e67bbef5ce40312>

  inputs>

  hash_0000050a7928571d7330f5e9156ad05b24f1d4>

- <hash_0100050f3b291f75c0bf4a0ef094f967e6b143>

  <name>SNMPv2-MIB - sysUpTimename>

- <ds>

  <t_name />

  <name>|host_hostname| - Uptimename>

  <data_input_id>hash_0300053eb92bb845b9660a7445cf9740726522data_input_id>

  <t_rra_id />

  <t_rrd_step />

  <rrd_step>300rrd_step>

  <t_active>ont_active>

  <active>onactive>

  <rra_items>hash_150005c21df5178e5c955013591239eb0afd46|hash_1500050d9c0af8b8acdc7807943937b3208e29|hash_1500056fc2d038fb42950138b0ce3e9874cc60|hash_150005e36f3adb9f152adfa5dc50fd2b23337erra_items>

  ds>

- <items>

- <hash_0800053f765eaeaf380c6762cf01e44442e53e>

  <t_data_source_name />

  <data_source_name>sysUpTimedata_source_name>

  <t_rrd_minimum />

  <rrd_minimum>0rrd_minimum>

  <t_rrd_maximum />

  <rrd_maximum>0rrd_maximum>

  <t_data_source_type_id />

  <data_source_type_id>1data_source_type_id>

  <t_rrd_heartbeat />

  <rrd_heartbeat>600rrd_heartbeat>

  <t_data_input_field_id />

  <data_input_field_id>0data_input_field_id>

  hash_0800053f765eaeaf380c6762cf01e44442e53e>

  items>

- <data>

- <item_000>

  <data_input_field_id>hash_0700054276a5ec6e3fe33995129041b1909762data_input_field_id>

  <t_value />

  <value>.1.3.6.1.2.1.1.3.0value>

  item_000>

- <item_001>

  <data_input_field_id>hash_070005012ccb1d3687d3edb29c002ea66e72dadata_input_field_id>

  <t_value />

  <value />

  item_001>

- <item_002>

  <data_input_field_id>hash_0700059c55a74bd571b4f00a96fd4b793278c6data_input_field_id>

  <t_value />

  <value />

  item_002>

- <item_003>

  <data_input_field_id>hash_070005ad14ac90641aed388139f6ba86a2e48bdata_input_field_id>

  <t_value />

  <value />

  item_003>

- <item_004>

  <data_input_field_id>hash_07000532285d5bf16e56c478f5e83f32cda9efdata_input_field_id>

  <t_value />

  <value />

  item_004>

- <item_005>

  <data_input_field_id>hash_07000592f5906c8dc0f964b41f4253df582c38data_input_field_id>

  <t_value />

  <value />

  item_005>

  data>

  hash_0100050f3b291f75c0bf4a0ef094f967e6b143>

- <hash_0300053eb92bb845b9660a7445cf9740726522>

  <name>Get SNMP Dataname>

  <type_id>2type_id>

  <input_string />

- <fields>

- <hash_07000592f5906c8dc0f964b41f4253df582c38>

  <name>SNMP IP Addressname>

  <update_rra />

  <regexp_match />

  <allow_nulls />

  <type_code>hostnametype_code>

  <input_output>ininput_output>

  <data_name>management_ipdata_name>

  hash_07000592f5906c8dc0f964b41f4253df582c38>

- <hash_07000532285d5bf16e56c478f5e83f32cda9ef>

  <name>SNMP Communityname>

  <update_rra />

  <regexp_match />

  <allow_nulls />

  <type_code>snmp_communitytype_code>

  <input_output>ininput_output>

  <data_name>snmp_communitydata_name>

  hash_07000532285d5bf16e56c478f5e83f32cda9ef>

- <hash_070005ad14ac90641aed388139f6ba86a2e48b>

  <name>SNMP Usernamename>

  <update_rra />

  <regexp_match />

  <allow_nulls>onallow_nulls>

  <type_code>snmp_usernametype_code>

  <input_output>ininput_output>

  <data_name>snmp_usernamedata_name>

  hash_070005ad14ac90641aed388139f6ba86a2e48b>

- <hash_0700059c55a74bd571b4f00a96fd4b793278c6>

  <name>SNMP Passwordname>

  <update_rra />

  <regexp_match />

  <allow_nulls>onallow_nulls>

  <type_code>snmp_passwordtype_code>

  <input_output>ininput_output>

  <data_name>snmp_passworddata_name>

  hash_0700059c55a74bd571b4f00a96fd4b793278c6>

- <hash_070005012ccb1d3687d3edb29c002ea66e72da>

  <name>SNMP Version (1, 2, or 3)name>

  <update_rra />

  <regexp_match />

  <allow_nulls>onallow_nulls>

  <type_code>snmp_versiontype_code>

  <input_output>ininput_output>

  <data_name>snmp_versiondata_name>

  hash_070005012ccb1d3687d3edb29c002ea66e72da>

- <hash_0700054276a5ec6e3fe33995129041b1909762>

  <name>OIDname>

  <update_rra />

  <regexp_match />

  <allow_nulls />

  <type_code>snmp_oidtype_code>

  <input_output>ininput_output>

  <data_name>oiddata_name>

  hash_0700054276a5ec6e3fe33995129041b1909762>

  fields>

  hash_0300053eb92bb845b9660a7445cf9740726522>

- <hash_150005c21df5178e5c955013591239eb0afd46>

  <name>Daily (5 Minute Average)name>

  <x_files_factor>0.5x_files_factor>

  <steps>1steps>

  <rows>600rows>

  <timespan>86400timespan>

  <cf_items>1|3cf_items>

  hash_150005c21df5178e5c955013591239eb0afd46>

- <hash_1500050d9c0af8b8acdc7807943937b3208e29>

  <name>Weekly (30 Minute Average)name>

  <x_files_factor>0.5x_files_factor>

  <steps>6steps>

  <rows>700rows>

  <timespan>604800timespan>

  <cf_items>1|3cf_items>

  hash_1500050d9c0af8b8acdc7807943937b3208e29>

- <hash_1500056fc2d038fb42950138b0ce3e9874cc60>

  <name>Monthly (2 Hour Average)name>

  <x_files_factor>0.5x_files_factor>

  <steps>24steps>

  <rows>775rows>

  <timespan>2678400timespan>

  <cf_items>1|3cf_items>

  hash_1500056fc2d038fb42950138b0ce3e9874cc60>

- <hash_150005e36f3adb9f152adfa5dc50fd2b23337e>

  <name>Yearly (1 Day Average)name>

  <x_files_factor>0.5x_files_factor>

  <steps>288steps>

  <rows>797rows>

  <timespan>33053184timespan>

  <cf_items>1|3cf_items>

  hash_150005e36f3adb9f152adfa5dc50fd2b23337e>

- <hash_050005caababff166448da7a0fb2c2dba04e7e>

  <name>Miliseconds to Daysname>

- <items>

- <hash_140005c6c097cf4569c485db2014c88dbec532>

  <sequence>1sequence>

  <type>4type>

  <value>CURRENT_DATA_SOURCEvalue>

  hash_140005c6c097cf4569c485db2014c88dbec532>

- <hash_140005ee32895cfa811896443c4e39e2399d99>

  <sequence>2sequence>

  <type>6type>

  <value>8640000value>

  hash_140005ee32895cfa811896443c4e39e2399d99>

- <hash_1400055aaf0f8f02ab04aaa2e56d3b0217c42c>

  <sequence>3sequence>

  <type>2type>

  <value>4value>

  hash_1400055aaf0f8f02ab04aaa2e56d3b0217c42c>

  items>

  hash_050005caababff166448da7a0fb2c2dba04e7e>

- <hash_060005e9c43831e54eca8069317a2ce8c6f751>

  <name>Normalname>

  <gprint_text>%8.2lf%sgprint_text>

  hash_060005e9c43831e54eca8069317a2ce8c6f751>

  cacti>

文件:	cacti_graph_template_snmpv2mib_sysuptime.rar
大小:	2KB
下载:	下载