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Briefly, this error occurs when there are too many affix files associated with the Hunspell dictionary in OpenSearch. Hunspell is a spell checker used by OpenSearch for text analysis. The issue might be due to an excessive number of custom dictionaries or incorrect configuration. To resolve this, you can reduce the number of custom dictionaries, ensure each dictionary has only one affix file, or check the configuration of your Hunspell dictionaries. Also, consider upgrading OpenSearch if you’re using an older version, as newer versions may have improved handling for this issue.
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This guide will help you check for common problems that cause the log ” Too many affix files exist for hunspell dictionary [%s] ” to appear. To understand the issues related to this log, read the explanation below about the following OpenSearch concepts: analysis, indices.
Log Context
Log “Too many affix files exist for hunspell dictionary [%s]” class name is HunspellService.java. We extracted the following from OpenSearch source code for those seeking an in-depth context :
Path[] affixFiles = FileSystemUtils.files(dicDir; "*.aff");
if (affixFiles.length == 0) {
throw new OpenSearchException(String.format(Locale.ROOT; "Missing affix file for hunspell dictionary [%s]"; locale));
}
if (affixFiles.length != 1) {
throw new OpenSearchException(String.format(Locale.ROOT; "Too many affix files exist for hunspell dictionary [%s]"; locale));
}
InputStream affixStream = null; Path[] dicFiles = FileSystemUtils.files(dicDir; "*.dic");
List dicStreams = new ArrayList<>(dicFiles.length);
