Zabbix Documentation 2.4

3.04.05.0 (current)| In development:5.2 (devel)| Unsupported:1.82.02.22.43.23.44.24.4Guidelines

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manual:installation:upgrade_notes_240

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manual:installation:upgrade_notes_240 [2016/01/13 09:33]
martins-v trying to fix numbering
manual:installation:upgrade_notes_240 [2017/02/16 10:11]
martins-v note about case-sensitive MySQL database
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 Support of the "node watcher"​ second parameter has been removed from the ''​zabbix[process]''​ internal item. This item has also been removed from //Template App Zabbix Server//. In order to fix it, either manually delete the item or import the new template and mark //Delete missing// option for items. Support of the "node watcher"​ second parameter has been removed from the ''​zabbix[process]''​ internal item. This item has also been removed from //Template App Zabbix Server//. In order to fix it, either manually delete the item or import the new template and mark //Delete missing// option for items.
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 +=== Case-sensitive MySQL database ===
 +
 +A case-sensitive MySQL database is required for proper server work. It is [[:​manual/​appendix/​install/​db_scripts#​mysql|recommended]] to create a case-sensitive MySQL database during new installations. If you created a MySQL database with the utf8 character set previously, in order to support case sensitiveness of stored data, you need to convert the charset to utf8_bin.
 +
 === Handling automatically discovered hosts === === Handling automatically discovered hosts ===
  
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 The database upgrade patches will automatically convert the existing triggers to the [[manual:​introduction:​whatsnew240#​support_of_new_trigger_operators|new syntax]]. The database upgrade patches will automatically convert the existing triggers to the [[manual:​introduction:​whatsnew240#​support_of_new_trigger_operators|new syntax]].
 +
 +Note that along with the syntax change, unary **-** operator associativity has changed from right-associative to non-associative,​ meaning that **-(-1)** should now be used instead of **<​nowiki>​--</​nowiki>​1**.
 === Dropped support of round-off constants === === Dropped support of round-off constants ===
  
 The descriptions of ZBX_UNITS_ROUNDOFF_THRESHOLD,​ ZBX_UNITS_ROUNDOFF_UPPER_LIMIT,​ ZBX_UNITS_ROUNDOFF_MIDDLE_LIMIT and ZBX_UNITS_ROUNDOFF_LOWER_LIMIT definitions have been removed from the documentation since their functionality no longer matches their intended purpose. They are still present in the code and any changes made to them will remain, but their modification may cause unexpected results. The descriptions of ZBX_UNITS_ROUNDOFF_THRESHOLD,​ ZBX_UNITS_ROUNDOFF_UPPER_LIMIT,​ ZBX_UNITS_ROUNDOFF_MIDDLE_LIMIT and ZBX_UNITS_ROUNDOFF_LOWER_LIMIT definitions have been removed from the documentation since their functionality no longer matches their intended purpose. They are still present in the code and any changes made to them will remain, but their modification may cause unexpected results.