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Briefly, this error occurs when OpenSearch fails to load the Hunspell dictionary for a specific locale. This could be due to a missing or incorrectly configured dictionary file. To resolve this issue, ensure that the Hunspell dictionary file for the specified locale is present in the correct directory. If it is, check the file’s permissions to ensure OpenSearch can access it. If the file is missing, you may need to download or create it. Also, verify your OpenSearch configuration to ensure it’s correctly set to use the Hunspell dictionary.
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This guide will help you check for common problems that cause the log ” Failed to load hunspell dictionary for locale: ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: indices, analysis.
Log Context
Log “Failed to load hunspell dictionary for locale:” classname is HunspellService.java.
We extracted the following from OpenSearch source code for those seeking an in-depth context :
this.defaultIgnoreCase = HUNSPELL_IGNORE_CASE.get(settings);
this.loadingFunction = (locale) -> {
try {
return loadDictionary(locale; settings; env);
} catch (Exception e) {
logger.error("Failed to load hunspell dictionary for locale: " + locale; e);
throw new IllegalStateException("Failed to load hunspell dictionary for locale: " + locale);
}
};
if (!HUNSPELL_LAZY_LOAD.get(settings)) {
scanAndLoadDictionaries();
