How to use Luke 7.4.0 with Elasticsearch 6.2.0?

[Ronan McHugh]

Hi,

I've been trying to get Luke to read my Elasticsearch 6.2.0 index without any success. I found some guidelines which involve repackaging the Luke jar with updated dependencies, but unfortunately the Elasticsearch SPI classes it documents seem to be out of date. I've added elasticsearch 6.2.0 to my pom.xml and added org.elasticsearch.index.codec.PerFieldMappingPostingFormatCodec to the org.apache.lucene.codecs.PostingsFormat before re-packaging but I'm getting a ClassCast exception. Honestly I think that this is only the beginning of my problems, so I'd really appreciate some help from someone more familiar with both Luke and Elasticsearch internal APIs.

Here's the stacktrace from Luke logs:

[2018-08-12 21:03:59,044] ERROR (ExceptionHandler.java:78) -
java.lang.ExceptionInInitializerError
    at org.apache.lucene.codecs.PostingsFormat.forName(PostingsFormat.java:112)

Caused by: java.lang.ClassCastException: class org.elasticsearch.index.codec.PerFieldMappingPostingFormatCodec
    at java.lang.Class.asSubclass(Class.java:3404)
    at org.apache.lucene.util.SPIClassIterator.next(SPIClassIterator.java:156)
    at org.apache.lucene.util.NamedSPILoader.reload(NamedSPILoader.java:70)
    at org.apache.lucene.util.NamedSPILoader.<init>(NamedSPILoader.java:51)
    at org.apache.lucene.util.NamedSPILoader.<init>(NamedSPILoader.java:38)
    at org.apache.lucene.codecs.PostingsFormat$Holder.<clinit>(PostingsFormat.java:49)
    ... 74 more

Luke 7.4.0

Thanks in advance,

Ronan McHugh

[tomoko.uc...@gmail.com]

Hi,

Sorry for the late reply.

I can read my Elasticsearch 6.2 index with Luke 7.4.0 without adding dependencies. 

Can you provide more information, such as installed plugins, your analyzer settings and mappings?

Regards,

Tomoko

2018年8月13日月曜日 4時07分56秒 UTC+9 Ronan McHugh:

[tomoko.uc...@gmail.com]

Was your problem solved?

If not yet, can you create an issue on GitHub repository?

https://github.com/DmitryKey/luke/issues

Currently, this forum is not so active. More users may notice the issue than post it to here.

Tomoko

2018年9月13日木曜日 0時34分08秒 UTC+9 tomoko.uc...@gmail.com: