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Special Case | How to handle | ||||||||
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The NCI Thesaurus differs from other OWL formatted resources and as a result you should follow this documentation. | |||||||||
OWL terminologies do not normally require special handling, but LexEVS offers some advanced loading options users may take advantage of. | |||||||||
Terminologies in RRF format typically come from the National Library of Medicine's (NLM) Unified Medical Language System (UMLS). Many terminologies are a subset of the UMLS such as LOINC, SNOMED, MedDRA, HUGO, GO, and ICD to name a few. The terminology you're interested in is a subset of the UMLS if:
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None of the above match and you cannot find a suitable source format. | Many terminology providers produce more than one source format that can be downloaded. Source formats such as text only, CSV, tab delimited, and spreadsheets are not acceptable source formats for LexEVS. If you can not find an acceptable source format for a terminology to load into LexEVS then one option is to download versions that have been placed on BioPortal
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Common Errors When Loading
Error | Remedy or Indication |
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Out of Memory Error Heap Error Perm Gen Error | Generally memory related errors that indicate the heap space and/or perm gen space need to be increased when starting the Java VM. |
Data Truncation Error | Source formats change over the years and sometimes this results in this database related error. It indicates that a column size is too small for whatever element has been pulled from the source file. This will require an update to LexEVS to fix and a temporary workaround can be to edit the source so that the element is made short enough to fit the database column. |
DataBase Connection Error | Check to see if the DBMS is up and running, that your database exists, that the connection parameters are correct, and that proper privileges exist for the connecting user. This error may manifest itself as DAO related errors being generated by the spring framework at some levels of execution in the logs, including failing to create a dao list. |
Too many files open | Linux system error requires setting of system properties. This happens when the Lucene index is large and is being reindexed on loading a new terminology or is being optimized or cleaned up. |
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