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- more info about update

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steinm 2011-12-08 18:30:17 +00:00
parent 1232b8f309
commit f714187b14
1 changed files with 20 additions and 7 deletions
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27
install/update-3.3.0/update.txt
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@ -30,8 +30,8 @@ is placed on a html page.
As a consequence the complete database has to be searched for those As a consequence the complete database has to be searched for those
previously converted strings and converted back into the original value. previously converted strings and converted back into the original value.
For both of the above improvements a php script is provided which has to be The conversion is done right after the database update during the
called after the database update. installation and upgrade process.
Content directory Content directory
----------------- -----------------
@ -40,13 +40,26 @@ Consequently, there is a limitation of documents set by the maximum number
of subdirectories in a directory of the filesystem. The currently most used of subdirectories in a directory of the filesystem. The currently most used
filesystem on Linux (ext3) supports only 31998 directories. In order to filesystem on Linux (ext3) supports only 31998 directories. In order to
overcome this limitation another level of directories has been put inbetween overcome this limitation another level of directories has been put inbetween
the content directory and the document directory numbered from 1 to maxDirId. the content directory and the document directory numbered from 1 to
maxDirID. This allows a theorethical maximum of sq(maxDirID) documents. The
path to the document folder consists of the new path id and the document id
(<pathid>/<docid>). The path id is derived from the document id by the
formula
floor(docid/maxDirID) + 1
Hence, all documents with an id from 1 to maxDirID have the path '1/<docid>'.
The limiting factor of this schema is the number of document ids. It cannot
be higher than sq(maxDirID).
If you intend to switch to the new content directory format, you will have If you intend to switch to the new content directory format, you will have
to create a new directory with name '1' below the content dir and move all to set maxDirID to a value > 0 (possibly 31998) and create a new directory
document directories into it. If you have already a document with id 1, you with name '1' below the content dir and move all document directories into
must choose a different name for your new sub directory and rename to 1 after it. If you have already a document with id 1, you must choose a different
all document directories have been moved. name for your new sub directory and rename to 1 after all document
directories have been moved. If you want to keep the current content
directory structure set maxDirID to 0. Make sure the maxDirID remains
unchanged for a content directory.
After finishing update After finishing update
---------------------- ----------------------