Log Cant apply illegal value: using instead; use one of: – How To Solve Related Issues

Log Cant apply illegal value: using instead; use one of: – How To Solve Related Issues

Updated: Feb-20

Elasticsearch Version: 1.7-8.0

Background

To resolve issues causing many log errors you can try our Elasticsearch Check-Up it analyses ES configuration to provide actionable recommendations (no installation required) 


To troubleshoot log “Cant apply illegal value: using instead; use one of:” it’s important to understand a few problems related to Elasticsearch concepts index, shard. See bellow important tips and explanations on these concepts

Log Context

Log”Can’t apply {} illegal value: {} using {} instead; use one of: {}” classname is IndexShard.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

     private static Translog.Durabilty getFromSettings(ESLogger logger; Settings settings; Translog.Durabilty defaultValue) {
        final String value = settings.get(TranslogConfig.INDEX_TRANSLOG_DURABILITY; defaultValue.name());
        try {
            return Translog.Durabilty.valueOf(value.toUpperCase(Locale.ROOT));
        } catch (IllegalArgumentException ex) {
            logger.warn("Can't apply {} illegal value: {} using {} instead; use one of: {}"; TranslogConfig.INDEX_TRANSLOG_DURABILITY;
                    value; defaultValue; Arrays.toString(Translog.Durabilty.values()));
            return defaultValue;
        }
    }
}




Related issues to this log

We have gathered selected Q&A from the community and issues from Github, that can help fix related issues please review the following for further information :

1 Github Issue Number 22108  

Github Issue Number 26453  

 

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