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Splitfilesystem V2

Currently there are three different Versions with different features available. Splitfilesystem and SplitfilesystemV2 are in maintanace mode and can still be used in existing installations. For new installations or repositories SplitfilesystemV3 is recommended.

SplitfilesystemV3 (from tia ContentServer 3.6.0 or newer)

The files are stored within a filesystem in Base32 coded structures. The whole path is base 32 coded and divided into blocks.
The size of the blocks for folders can be choosen as 4, 8 (default) or 16. The filename is splitted with a variable number of characters, with a default of 250 chars.
The blockSize setting is stored in the filesystem in .kgs/blockSize.

Example:

Code Block
FZVWO4Y\MNXW4ZTJ\M5SGC5DB\NVSXIYI\MNXW23LP\NY\MFSF643VOBYGYZLNMVXHIYLSPEXHQ3LM.Info

Example:

Code Block
<repo>.contentservice.type     = splitfilesystemv3
<repo>.description             = Finance Repository
<repo>.saphttp.security        = 1
<repo>.accessmode              = rucd
<repo>.authentication.required = false
<repo>.authentication.user     = 
<repo>.authentication.pwdalias = 

#===== FI content service configuration (filesystem|splitfilesystemv2|splitfilesystemv3|azureblobstore|s3blobstore|kgsstore)
<repo>.contentservice.splitfilesystemv3.root.1 = C:/Doc_Base
<repo>.contentservice.splitfilesystemv3.root.2 = C:/Doc_Base_Disk2
<repo>.contentservice.splitfilesystemv3.contrepinpath = true
<repo>.contentservice.splitfilesystemv3.maxfolderblocks=8
<repo>.contentservice.splitfilesystemv3.maxFileNameLength=200
<repo>.contentservice.splitfilesystemv3.rootSelectionIntervalH=24
Info

Folder separation is always / see Syntax rules for repository.cfg file

To use the splitfilesystemv3 the <repo>.contentservice.typeneeds to be splitfilesystemv3.

All parameters for splitfilesystemv3 must be configured within <repo>.contentservice.splitfilesystemv3 on a repository or template level.

Parameter

Description

Default

root.<n>

Folder(s) where the documents and all related data are stored, it is allowed to add folder with a higher number anytime, you should not remove folder unless you do not want to access the files anymore.

Using the same path more than once as root directory is not allowed.

-

root.<n>.freespacegb

with this value it is possible to control the behavior of selecting the root folder.
-1 means the root folder will be skipped, expect the one with the highest number.
For any other value > 0 the folder will be checked if enough free disk space is available then this folder will be used. The folder with the smallest number and enough free space will be used. see also https://kgs-software.atlassian.net/wiki/spaces/DOCUEN/pages/2339602437/Splitfilesystem#root-folder-selection-rules .

-1

contrepinpath

create a folder in root that has the same name as the repository

false

maxfolderblocks

create subfolder from the base32 encoded folder name with this length, this parameter can reduce the folder depth . Available values 4, 8, 16

Note

This value cannot be changed in an existing repository it will lead to data lost and inconsistency!

8

maxFileNameLength

the filename of the document encoded in base32 is maximum this long, otherwise it will be splitted in subfolders. Any number between 10 and 250 can be used.

Note

This value cannot be changed in an existing repository it will lead to data lost and inconsistency!

250

rootSelectionIntervalH

Time interval to find a new root directory, when free space on disk is smaller than freespacegb. see https://kgs-software.atlassian.net/wiki/spaces/DOCUEN/pages/2339602437/Splitfilesystem#root-folder-selection-rules

12

root folder selection rules

Multiple root directories are allowed in SFSV3 to spread repositories across different disk/shares and avoid limit of filesystems.
Multiple roots can be configured distinguished by a order number. e.g. root.1,root.2

  • the algorithm tries in numbers order to pick the root

    • it checks the available space and compares it with the given limit. Default limit is -1.

    • If the algorithm finds out, that a root hasn’t enough space it tries the next.

    • with limit -1 a drive can be blocked. The space detection is skipped. It is then used in read only state (and / or only for adding components and informations)

      • if the last root has -1 it will be written until I/O-exception, means the root is “full“

  • the algorithm is triggered by:

    • if rootSelectionIntervalH is exceeded

    • if I/O-exception had happen while I/O-operation

Example:

Code Block
<repo>.contentservice.splitfilesystemv3.root.1 = C:/Doc_Base
<repo>.contentservice.splitfilesystemv3.root.2 = C:/Doc_Base_Disk2
<repo>.contentservice.splitfilesystemv3.root.2.freespacegb=-1
<repo>.contentservice.splitfilesystemv3.root.3 = C:/Doc_Base_Disk3
<repo>.contentservice.splitfilesystemv3.root.3.freespacegb=10
<repo>.contentservice.splitfilesystemv3.root.4 = C:/Doc_Base_Disk4
<repo>.contentservice.splitfilesystemv3.root.4.freespacegb=50

In this example root.1 is skiped and only used for reading because freespacegb is not set and therefore -1.

root.2 is also skipped because freespacegb is -1.

root.3 is only used when C:/Doc_Base_Disk3 has more than 10 GB available space.
root.4 is only used when C:/Doc_Base_Disk4 has more than 50 GB available space.
Is root.3 and root.4 disk space exceeded storing documents is no longer possible only reading.

Be aware that SFSV3 tries to keep documents in same folder together, when a document is stored in the original root and later a second document or component should be added in the same folder even when root.4 is used at the moment, SFSV3 will store the document in root (C:/Doc_Base). Make sure that your not used disk have some space left otherwise modification is no longer possible.

SplitfilesystemV2

The files are stored within a filesystem in Base32 coded structures. The whole path is base 32 coded and divided into blocks.

...

Code Block
{
  "properties": {
    "contentDigestAlgorithm": "MD5",
    "creationUser": "LOCAL SERVICE",
    "creationTime": "2023-07-13T07:03:50.867280400Z[UTC]",
    "propertyLayoutVersion": "V02.00",
    "modificationTime": "2023-07-13T08:03:37.406140Z[UTC]",
    "modificationUser": "LOCAL SERVICE",
    "objectName": "20230713_611ce078-2915-423d-8190-c72d40337ff9_node",
    "contentLength": "1127",
    "repository": "FI",
    "contentDigest": "68FAB75EC1AC8D2820068CC95FAA5EDE",
    "contentStreamLength": "1127",
    "archiveLinkVersion": "0046"
  }
}

Configurationparameters

...

In order to store documents on a filesystem parameters have to be defined within the repository.cfg file. In general the file is stored in the folder:

Code Block
<Tomcat folder>\webapps\<name of the webapp>\WEB-INF\classes\config

A small sample of a repository.cfg file:

Code Block
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License.  You may obtain a copy of the License at
# 
#      http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# the repository list for the default repositoryfactory.class
repositoryfactory.repositorylist = FI,MM

#----------------------  FI configuration (splitfilesystemv2) ----------------------------------

#===== FI repository configuration 
FI.contentservice.type     = splitfilesystemv2
FI.description             = Finance Repository
FI.saphttp.security        = 1
FI.accessmode              = rucd
FI.authentication.required = false
FI.authentication.user     = 
FI.authentication.pwdalias = 

#===== FI content service configuration (filesystem|splitfilesystemv2|splitfilesystemv3|azureblobstore|s3blobstore|kgsstore)
FI.contentservice.splitfilesystemv2.root = C:/Doc_Base
FI.contentservice.splitfilesystemv2.contrepinpath = true 
#===== FI keystore service configuration (none|pkcs12)
FI.keystoreservice.type        = pkcs12
FI.keystoreservice.pkcs12.name = common-ks.pkcs12

#===== FI meta service configuration (none|elastic|database|kafka)
FI.metaservice.type = none

#===== FI meta service configuration (none|elastic|database|kafka)
FI.protocolservice.type = none

...

All further parameters are defined individually for each content repository.

In order to store the documents on the filesystem the content repository type has to be set to splitfilesystemv2 .

Code Block
<repoName>.contentservice.type = splitfilesystemv2

In order to store the documents in a specified place the path has to be entered; ex. C:/Doc_Base/or /opt/Doc_Base . Please be aware that the separator for the folder always is a / !

When storing the documents on a filesystem we suggest to set the parameter ContrepInPath = true

Code Block
#<repoName>.contentservice.splitfilesystemv2.root = C:/Doc_Base
#<repoName>.contentservice.splitfilesystemv2.ContrepInPath = true 

The saphttp.security can be set to 0, 1 or 2.

0 means that no security is necessary and no certifiate is needed in order to store documents in the content repository

1 means that in order to store documents in the content repository a certificate has to be send from the SAP system to the content server. The certifiacte will be accepted automatically by the content server.

2 means that in order to store documents in the content repository a certificate has to be send from the SAP system to the content server. The certifiacte has to be accepted manually by the content server. This can be done via the transaction CSADMIN within the SAP system.

Code Block
#<repoName>.saphttp.security        = 1 

The parameters for the accessmode in general always should be rucd (read, update, create, delete) and the authentication should be set to false with no user a/o password.

Code Block
FI.accessmode              = rucd
FI.authentication.required = false
FI.authentication.user     = 
FI.authentication.pwdalias = default false
Info

Folder separation is always / see Syntax rules for repository.cfg file