Difference between revisions of "Wikispooks:SMW Known Issues"

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(Created page with "{{HelpSection|image=SMW.png}} Semantic Mediawiki is cutting edge software, which is not without its problems. ==Server Load== When you save changes to the semantic data, they...")
 
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{{HelpSection|image=SMW.png}}
 
{{HelpSection|image=SMW.png}}
Semantic Mediawiki is cutting edge software, which is not without its problems.
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{{WSProblems|outdated=Yes|details=This page has not been updated since a major server upgrade in January 2019. It no longer applies given the updated SMW version and a more powerful host computer. It is left as a reminder of the problems of trying to run the site on an insufficiently powerful webhost.}}
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'''Semantic Mediawiki does have problems''', some of which have been addressed since this article was written. Go to [[Special:Version]] to see which version of SMW site is currently (it was 2.5.8 as of February 2019).
  
 
==Server Load==
 
==Server Load==
 
When you save changes to the semantic data, they may not be instantly reflected in the pages served. The reason for this is that, like Mediawiki, SMW has a queue of updates. This is unavoidable and only to be expected with such software. SMW has not been subject to the same extensive testing and optimisation as Mediawiki, and so can use a lot of resources (server RAM and CPU). This should not present a serious problem to experimentation and development, provided certain issues are borne in mind:
 
When you save changes to the semantic data, they may not be instantly reflected in the pages served. The reason for this is that, like Mediawiki, SMW has a queue of updates. This is unavoidable and only to be expected with such software. SMW has not been subject to the same extensive testing and optimisation as Mediawiki, and so can use a lot of resources (server RAM and CPU). This should not present a serious problem to experimentation and development, provided certain issues are borne in mind:
 
#Changing a lot of high use templates will increase the server queue resulting in the slower processing of semantic templates. ''Be careful of experiments with high use templates such as [[Template:SMWDocs]]; experiment elsewhere first to check your syntax.''
 
#Changing a lot of high use templates will increase the server queue resulting in the slower processing of semantic templates. ''Be careful of experiments with high use templates such as [[Template:SMWDocs]]; experiment elsewhere first to check your syntax.''
#It is possible to place the system in a non-deterministic (i.e. random) state, by stating the equivalent of (If A, then Not A). ''Be careful of any templates which autogenerate a lot of markup (such as [[category:Display Templates|Display Templates]]). Try to avoid their use if possible, and think it through carefully if not.''
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#It is possible to place the system in a non-deterministic (i.e. random) state, by stating the equivalent of (If A, then Not A). ''Be careful of any templates which autogenerate a lot of markup (such as [[:category:Display Properties|Display Properties]]). Try to avoid their use if possible, and think it through carefully if not.''
  
 
==Known Bugs==
 
==Known Bugs==
The current version of SMW does has some bugs, which should be reported to the SMW developers. This is for listing bugs known to be affecting Wikispooks:
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SMW bugs should be reported to the SMW developers. This is for listing bugs known to be affecting Wikispooks:
# Column headings are omitted when querying on an inverse property - see [[Lone nut]] for an example of this
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#<s> Column headings are omitted when querying on an inverse property - e.g. [[Lone_nut#Official_examples]]</s>
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#<s> Dates which have a year and month but no day create a red error message - e.g. [[File:King Family File Transcript.pdf]]</s>
  
{{WikiSpooks Footer/Semantic Mediawiki}}
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==Rough Edges==
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This list is for points which may not merit the label 'bug', but where SMW behaviour is still sub-optimal
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# <S>Redirects do not work perfectly when in a list - e.g. See Edward Snowden's revelations list on [[Whistleblower]] - these repeated entries (redirects) are redundant</S>
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{{Wikispooks Footer/Semantic Mediawiki}}
 
[[Category:Semantic Mediawiki]]
 
[[Category:Semantic Mediawiki]]

Latest revision as of 16:37, 2 May 2023

SMW.png

Wikispooks-logo-outdated.png  This page has not been updated since a major server upgrade in January 2019. It no longer applies given the updated SMW version and a more powerful host computer. It is left as a reminder of the problems of trying to run the site on an insufficiently powerful webhost.

Semantic Mediawiki does have problems, some of which have been addressed since this article was written. Go to Special:Version to see which version of SMW site is currently (it was 2.5.8 as of February 2019).

Server Load

When you save changes to the semantic data, they may not be instantly reflected in the pages served. The reason for this is that, like Mediawiki, SMW has a queue of updates. This is unavoidable and only to be expected with such software. SMW has not been subject to the same extensive testing and optimisation as Mediawiki, and so can use a lot of resources (server RAM and CPU). This should not present a serious problem to experimentation and development, provided certain issues are borne in mind:

  1. Changing a lot of high use templates will increase the server queue resulting in the slower processing of semantic templates. Be careful of experiments with high use templates such as Template:SMWDocs; experiment elsewhere first to check your syntax.
  2. It is possible to place the system in a non-deterministic (i.e. random) state, by stating the equivalent of (If A, then Not A). Be careful of any templates which autogenerate a lot of markup (such as Display Properties). Try to avoid their use if possible, and think it through carefully if not.

Known Bugs

SMW bugs should be reported to the SMW developers. This is for listing bugs known to be affecting Wikispooks:

  1. Column headings are omitted when querying on an inverse property - e.g. Lone_nut#Official_examples
  2. Dates which have a year and month but no day create a red error message - e.g. File:King Family File Transcript.pdf

Rough Edges

This list is for points which may not merit the label 'bug', but where SMW behaviour is still sub-optimal

  1. Redirects do not work perfectly when in a list - e.g. See Edward Snowden's revelations list on Whistleblower - these repeated entries (redirects) are redundant


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