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This article looks at After Image Journaling and audit trails in Recital using SET JOURNAL and associated commands.

Overview

After Image Journaling, used in conjunction with a structured backup policy is an effective disaster recovery solution. Any transaction that takes place on a table that is being journaled is logged in the journal file. In the event of a disk crash or similar event in which the table is lost, the journaled transactions can be reapplied to the latest backup copy of the table. Alternatively or additionally, the journal can be used to provide an audit trail to all modifications made to the table data.

NOTE: Recital also provides Before Image Journaling via BEGIN TRANSACTION / END TRANSACTION blocks, allowing unsuccessful transactions to be rolled back to a set saved state.

SET JOURNAL and RECOVER

Regular backups are an essential routine for any system, but in high-transaction environments restoration of the latest backup can still mean a major loss of data. After image journaling can successfully be used as part of your disaster recovery strategy to minimize data loss and down time. Recital after image journaling functionality is based on the use of the SET JOURNAL and RECOVER commands.

SET JOURNAL
SET JOURNAL TO [<.dbj filename> | ()]
SET JOURNAL ON | OFF | ()

The SET JOURNAL command is used to enable the After Image Journaling and audit trail for the active table. The TO <.dbj filename> clause associates the specified transaction journal file with the active table.  If the journal file does not exist, it will be created.  The filename can be substituted with a <expC>, enclosed in round brackets, which returns a valid filename.  If no file extension is specified, ‘.dbj’ is used. When specifying a journal file, it is recommended that the journal file is stored on a different disk than that which the table is stored on, so that if a fatal disk error occurs, then the journal file will not be lost along with the table. 

//Enable journaling for the southwind!orders table
open database southwind
use orders
set journal to /journals/ord_journ

The <.dbj filename> is a standard table.  It contains seven fields that are specific to a journal file, followed by the first 249 fields of the associated table.

The first seven fields in the journal are:


Field

Type

Display

Storage

Description

AUD_DATE

Date

8 | 10 *

4

The date on which the transaction was performed.

AUD_TIME

Character

8

8

 The time at which the transaction was performed, in the format HH:MM:SS.

AUD_TERM

Character

12

12

The name of the terminal from which the transaction was performed

AUD_UID

Short

5

2

The ID of the user who performed the transaction.

AUD_GID

Short

5

2

The group ID of the user who performed the transaction.

AUD_CMD

Short

4

2

The command number of the transaction performed from the command table below

AUD_RECNO

Integer

7

4

The record number in the associated table which the transaction was performed on.


* Dependent on SET CENTURY setting.

The AUD_CMD Command Reference Numbers are as follows:


Command

Number

DELETE

14

RECALL

36

REPLACE

41

BROWSE

6

CHANGE

8

EDIT

17

INSERT

26

APPEND

5

READ

35


Since journal files are standard Recital tables, you can use standard Recital commands such as the REPORT command to print audit trails, transaction logs, etc.

//Enable journaling for the southwind!orders table
open database southwind
use orders
set journal to /journals/ord_journ
//.. transactions
close data
//View journaled records
use /journals/ord_journ.dbj

Click image to display full size

Fig 1: Journal Record Example.

The SET JOURNAL TO command without a <.dbj filename> specified closes the active journal file and no further journaling will take place on the active table until the SET JOURNAL TO <.dbj filename> is reissued.

The journaling features are mainly used with shared tables.  It should be noted that there is an overhead in enabling transaction journaling, as records updated in a table are also written to the journal file. When records are appended into a journal file, locking is automatically performed so that multiple users can update the journal concurrently.  The associated table must be opened shareable for this to occur.  Each table can have a journal file associated with it. 

The SET JOURNAL ON | OFF command enables or disables transaction journaling.  This command is primarily used in applications where journaling can be disabled for a certain class of operations. By default, SET JOURNAL is ON, but no journal files are set.

NOTE: Only the first 249 fields of a table can be journaled: subsequent fields are ignored. The maximum number of fields in a Recital table is 256.

RECOVER
RECOVER FROM <.dbj filename> | ()

The RECOVER command uses the journal file to reapply lost transactions to a previous backup of the data after a fatal error such as a disk head crash. The FROM clause specifies the journal file to use. The file name can be substituted with an <expC>, enclosed in round brackets, which returns a valid filename.  If no file extension is specified, then ‘.dbj’ is assumed. 

Regular backups are essential to the successful use of After Image Journaling.   It is also very important to reinitialize the journal file after each backup: either open the journal file as you would a normal table and use the ZAP command, or delete the file completely. If a fatal error occurs, such as a disk head crash, the table and index files must be restored from a backup, then the RECOVER command executed. RECOVER will reapply' all of the transactions in the journal file to the table, and update the indexes.  After the RECOVER command has completed, you can continue with normal processing. 

//Create a backup of the southwind!orders table
//...backup table and associated files
//Reinitialize the journal file
erase /journals/ord_journ.dbj
//Enable journaling for the southwind!orders table
open database southwind
use orders
set journal to /journals/ord_journ
//.. transactions
//Restore the backup of the southwind!orders table
//...restore
//Open the restored backup
open database southwind
use orders
//Reapply the transactions using the journal
recover from /journals/ord_journ.dbj
//Now, enable the journal file again or
//restart with a new backup

Journaling Memo Fields

By default, memo fields - variable length text fields - are not journaled due to the possible storage overhead of multiple copies of potentially large blocks of text. But, if memo journaling is required, the SET MEMOJOURNAL ON command can be used to enable this.

SET MEMOJOURNAL
SET MEMOJOURNAL ON | OFF | ()

The SET MEMOJOURNAL command causes memo fields to be journaled when journaling is set on a table. This command allows the optional logical expression <expL> to be evaluated.  If a value of  .T. is returned, MEMOJOURNAL is set ON.  If a value of .F. is returned, MEMOJOURNAL is set OFF.  By default SET MEMOJOURNAL is OFF.

Like a normal Recital table, the journal holds only a pointer to a data block in an associated memo file, not the actual memo data itself. The journal's memo file has a file extension of .dbm rather than the standard Recital .dbt. Therefore, if the journal is being opened as a table, in order to view the journal's memo data, the SET MEMOEXT command should be used.

//Enable journaling for the southwind!suppliers table
open database southwind
use suppliers
set journal to /journals/sup_journ
//.. transactions
close data
//Set filename extension for memo file
set memoext to '.dbm'
//View journaled records
use /journals/sup_journ.dbj

Summary

The After Image Journaling enabled by the SET JOURNAL and RECOVER commands can be used in conjunction with a strict backup regime to minimize data loss in cases where tables become damaged or irretrievable. Journal files can be accessed like standard Recital tables and provide detailed information about the transactions applied to a table, so can be used for auditing purposes.

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Recital 10 enhanced Recital by enabling it to be used in bash shell scripts and in shell commands which use pipes and/or redirect stdin and stdout. If stdin is not redirected then recital will startup and operate as normal in a terminal window. Additionally you can use heredoc to denote a block of recital commands that should be executed. Note that when used in this manner, no UI commands can be executed and no user interaction is allowed.  
# recital < mrprog.prg 
# recital < myprog.prg > myoutput.txt
# recital > myoutput.txt <<END
use customers
list structure
END
# echo "select * from sales!customers where overdue" | recital | wc -l
Individual commands can be executed in shell scripts.
# recital -c "create database sales"
# recital -c "create table sales!invoices (id int, name char(25), due date)"
Expressions can be evaluated and used in shell scripts.
# VER=`recital -e "version(1)"`
You can view what command line options are available by typing:
# recital --help
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Warnings

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Headers

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Icon set 1

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Icon set 2

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Icon set 3

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Tooltips

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Code

Below is a sample of <pre> or <div class="gkCode1">

#wrapper {
position: relative;
float: left;
display: block;
}

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#wrapper {
position: relative;
float: left;
display: block;
}

Below is a sample of <div class="gkCode3"><h4>Name of your file</h4>Here goes your code</div>



File

#wrapper {
position: relative;
float: left;
display: block;
}

Unordered lists

Types of unordered lists

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  • Element 1
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<ul class="gkBullet3">

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<ul class="gkSquare2">

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<ul class="gkSquare3">

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Ordered lists

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<ol class="gkRoman">

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<ol class="gkDec">

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<div class="gkNumber1"><p><span>here goes a number</span>and here text of element</p>

01 Element

02 Element

<div class="gkNumber2"><p><span>here goes a number</span>and here text of element</p>

01 Element

02 Element

Abbrs and acronyms

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Definition lists

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Butter
it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.
Dairy milk
is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.

<dl class="gkDef2"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>

Butter
it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.
Dairy milk
is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.

<dl class="gkDef3"><dt>Here goes the word you're about to define</dt><dd>Here goes definition</dd></dl>

Butter
it is a dairy product made by churning fresh or fermented cream or milk. It is generally used as a spread and a condiment, as well as in cooking applications such as baking, sauce making, and frying. Butter consists of butterfat, water and milk proteins.
Dairy milk
is an opaque white liquid produced by the mammary glands of mammals (including monotremes). It provides the primary source of nutrition for newborn mammals before they are able to digest other types of food.

Legends

Legend

This is a sample legend note. Use <div class="gkLegend1"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Legend

This is a sample legend note. Use <div class="gkLegend2"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Legend

This is a sample legend note. Use <div class="gkLegend3"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Legend

This is a sample legend note. Use <div class="gkLegend4"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Legend

This is a sample legend note. Use <div class="gkLegend5"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Legend

This is a sample legend note. Use <div class="gkLegend6"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Legend

This is a sample legend note. Use <div class="gkLegend7"> <h4> Title </h4> <p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus.</p> </div>.

Dropcaps

This is a sample text with Dropcap. Use <p> <span class="gkDropcap1">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.

This is a sample text with Dropcap. Use <p> <span class="gkDropcap2">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.

This is a sample text with Dropcap. Use <p class="gkDropcap3"> <span class="gkDropcap3">t</span> to make the first letter larger. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend. Vivamus ullamcorper est id libero aliquam ullamcorper. Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut..</p>.

Floated blocks

Below are samples of text in which part of it is displayed in a separate block

<p> Here goes main part of the text <span class="gkBlockTextLeft">Block of text</span>rest of the text</p>

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.

<p> Here goes main part of the text <span class="gkBlockTextRight">Block of text</span>rest of the text</p>

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.

<p> Here goes main part of the text <span class="gkBlockTextCenter">Block of text</span>rest of the text</p>

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue. Duis quis quam sed purus porta eleifend.Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum condimentum pulvinar justo, sed faucibus ligula feugiat ac. Morbi quis enim nulla, vel congue augue.Donec eget dignissim augue. Donec ante felis, aliquam ut consequat eget, lobortis dapibus risus. Aliquam laoreet enim et lectus ornare hendrerit. Aliquam rhoncus enim libero. Morbi aliquam, nibh mattis feugiat dapibus, nisi massa adipiscing justo, sit amet condimentum urna ipsum et lacus. Nam fermentum, eros quis ullamcorper convallis, libero mauris lacinia eros, sed tempus leo lorem vitae purus. Nunc a malesuada felis. Cras ultrices sapien eu nisi elementum non blandit urna sodales. Duis accumsan cursus massa, eu facilisis diam porta ut. Morbi cursus est vel velit hendrerit dictum.

Other span blocks

This is a sample pin note. Use <span class="gkClear">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkClear-1">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkClear-2">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-1">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-2">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-3">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-4">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-5">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-6">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

This is a sample pin note. Use <span class="gkColor-7">Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Integer urna. Aenean tristique. Fusce a neque. Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. </span>

Blockquotes

This is a sample quote text. Use < blockquote > Your quoted text goes here!< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote1"><div> Your quoted text goes here!< /div>< /div>< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote2"><div> Your quoted text goes here!< /div>< /div>< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote3"><div> Your quoted text goes here!< /div>< /div>< /blockquote >
This is a sample quote text. Use< blockquote><div class="gkBlockquote4"><div> Your quoted text goes here!< /div>< /div>< /blockquote >

Tables

Table Header (thead)
Table Footer (tfoot)
Column 1 Column 2
Cell 3 - part of tbody Cell 4 - part of tbody
Cell 5 - part of tbody Cell 6 - part of tbody
Cell 7 - part of tbody Cell 8 - part of tbody

Table Header (thead)
Table Footer (tfoot)
Column 1 Column 2
Cell 1 - part of tbody Cell 2 - part of tbody
Cell 3 - part of tbody Cell 4 - part of tbody
Cell 5 - part of tbody Cell 6 - part of tbody

 

 

Template additional styles

In order to get the video you have to use code like this:


<a class="gk_video_frame" href="http://www.vimeo.com/16274294" rel="mediabox[720 410]">
    <img src="/images/stories/demo/demo_video_1.png" border="0" alt="Video 1" />
    <span class="gk_vframe">Frame</span> 
    <span class="gk_voverlay">Overlay</span> 
    Watch the video 
</a>

As a href attribute you set the video address. In the rel attribute you can specify the video size. Image element is the thumbnail in the frame.

You can also create a blocks with icons. The structure is always similar - you have to change only second class near gk_block:


<div class="gk_block tablet">
<h3><a href="#">Mobile Ready</a></h3>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum</p>
</div>

Available blocks styles with classes:

android

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

blackberry

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

calendar

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

chat

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

clock

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

cog

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

firefox

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

info

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

mac

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

mail

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

mobilephone

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

phone

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

recycledbag

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

shoppingcart

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

tablet

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

user

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Cras quis erat elit. Donec pretium condimentum

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All temporary files created by Recital are stored in the directory specified by the environment variable DB_TMPDIR.

 
In order to have these files stored in memory first create a temporary directory
mkdir /opt/recital/tmp
 
Then mount the directory with the tmpfs command
mount -t tmpfs -o size=1g recitaltmpfs /usr/recital/tmp
 
Then change the DB_TMPDIR variable in the recital.conf to point to the newly created temporary directory.
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By default Recital uses PAM to authenticate users.  It is also possible to tell PAM to use Kerberos.  Simply replace the existing entries in the /etc/pam.d/recital file with the ones below:

auth       sufficient   pam_krb5.so try_first_pass
auth       sufficient   pam_unix.so shadow nullok try_first_pass
account    required     pam_unix.so broken_shadow
account    [default=bad success=ok user_unknown=ignore] pam_krb5.so
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The Openfiler NAS/SAN Appliance (NSA) is a Storage Management Operating System / NAS Appliance distribution. It is powered by the Linux 2.6 kernel and Open Source applications such as Apache, Samba, LVM2, ext3, Linux NFS and iSCSI Enterprise Target. Openfiler combines these ubiquitous technologies into a small, easy to manage solution fronted by a powerful web-based management interface. Openfiler allows you to build a Network Attached Storage (NAS) and/or Storage Area Network (SAN) appliance, using industry-standard hardware, in less than 10 minutes of installation time.

Building upon the popularity of server virtualization technologies such as VMware, Virtual Iron, and Xen, Openfiler can also be deployed as a virtual machine instance or on  a bare metal machine.

This deployment flexibility of Openfiler ensures that storage administrators are able to make the best use of system performance and storage capacity resources when allocating and managing networked storage in a multi-platform environment.

Openfiler is ideally suited for use with High Availability Recital applications as it incorporates:

  • Heartbeat cluster manager
  • drbd disk replication
  • CIFS
  • NFS
  • Software and hardware RAID
  • FTP
  • rsync
  • HTTP/DAV
  • iSCSI
  • LVM2
  • Multiple NIC bonding for High Availability
  • Powerful web-based GUI

 

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Found a nice subversion plugin for finder on the MAC.

The goal of the SCPlugin project is to integrate Subversion into the Mac OS X Finder. 

  • Support for Subversion.
  • Access to commonly used source control operations via contextual menu [screenshot]
  • Dynamic icon badging for files under version control. Shows the status of your files visually. [ screenshot ]
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I am pleased to finally report that the Centos release of Redhats 5.3 has been built and is available for download from http://www.centos.org/

The highlights of this release can be found at the following URL: http://www.redhat.com

The main areas of interest in my opinion excluding critical secirty fixes are:

  • Updated hardwaresupport support for the new Intel Core i7 (Nehalem) chips
  • Beefed up virtualiseation support increasing CPU and Ram limits of Virtual machines.
  • Inclusion of the fully open sourced OpenJDK. This makes Red Hat Enterprise Linux 5.3 the first enterprise-ready solution with a fully open source Java stack when combined with JBoss Enterprise Application Platform.


For those who already have Centos 5.2 installed you can simply receive the update via Yum.

Before you do the following, check that  you do not have 3rd party repo's and the Centos-testing repo enabled.

You can display the currently enabled repo's using the following command.

$ yum repolist



Then as root at the prompt type:

$ yum update

 

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This website runs in a  virtual machine under vmware server. It is clustered between two servers using heartbeat and DRBD.
 
When VMware server starts up a virtual machine it generates a uuid (unique id) based on the machine it is running on and stores this in the .vmx file.
 
When heartbeat switches from slave to master, it will start VMware server (which is setup as a resource in the haresources file).
 
Virtual machines that you want started automatically when you start VMware server will not start because the uuid changes between the master and backup systems. To get around this problem always do the following:
  • edit the .vmx file and add the following line

    uuid.action = "keep"
If this is not done then everytime you try to run the virtual machine on the backup system in your cluster, VMware server will complain that the virtual machine has been copied or moved and it will not start it.
  • set the virtual machine to power off when vmware is stopped. Do not set this to "suspend" or it will not restart on the backup machine.
This will allow the virtual machine to start properly on the backup machine.
 
 
 
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