elasticsearch 6.1 error : IOException while reading synonyms_path_path - docker

Question

I am using elasticsearch 6.1 and I am trying to add a basic synonym filter to my settings following this doc : https://www.elastic.co/guide/en/elasticsearch/reference/current/analysis-synonym-tokenfilter.html
Here is my code :
curl -XPUT 'localhost:9200/test_index?pretty' -H 'Content-Type: application/json' -d'
{
"settings": {
"index" : {
"analysis" : {
"analyzer" : {
"search_synonyms" : {
"type": "custom",
"tokenizer" : "keyword",
"filter" : ["lowercase","synonyms"]
}
},
"filter" : {
"synonyms" : {
"type" : "synonym",
"synonyms_path" : "analysis/synonyms.txt"
}
}
}
}
}
}'
And I get the following error message :
{
"error" : {
"root_cause" : [
{
"type" : "illegal_argument_exception",
"reason" : "IOException while reading synonyms_path_path: /usr/share/elasticsearch/config/analysis/synonyms.txt"
}
],
"type" : "illegal_argument_exception",
"reason" : "IOException while reading synonyms_path_path: /usr/share/elasticsearch/config/analysis/synonyms.txt",
"caused_by" : {
"type" : "no_such_file_exception",
"reason" : "/usr/share/elasticsearch/config/analysis/synonyms.txt"
}
},
"status" : 400
}
I believe the issue comes from the "... reading synonyms_path_path:" which should probably be just "... reading synonyms_path:".
However, I believe I respected all features as mentioned in the doc.
Moreover, if I try just to put :
"filter" : {
"synonyms" : {
"type" : "synonym",
"synonyms" : "analysis/synonyms.txt"
}
}
It just does not read the file then...
My synonyms.txt is the exact same file as shown in the doc for solr format.
Any thoughts or suggestion on how to fix this?
Thank you very much in advance for you time.

Answer 1

By using the following command on file, I fixed the error message :
sudo chmod 777 synonyms.txt
But the analyzer still does not recognize the synonyms present in the file.
Indeed synonyms.txt contains : i-pod, i pod => ipod
And if I try :
curl -XGET 'localhost:9200/test_index/_analyze?pretty' -H 'Content-Type: application/json' -d'
{
"analyzer": "search_synonyms",
"text": "i pod"
}'
I get :
{
"tokens" : [
{
"token" : "i pod",
"start_offset" : 0,
"end_offset" : 5,
"type" : "word",
"position" : 0
}
]
}
Problem not yet entirely solved, but getting there :).

Answer 2

"filter" : {
"synonyms" : {
"type" : "synonym",
"synonyms" : "synonyms.txt"
}
}
Try this. It worked for me.

Answer 3

Little late, but I had the same issue with docker, as Aurelien Quillet pointed out.
You probably need something like
services:
elasticsearch_container:
volumes:
- ${APPLICATION}/config/packages/synonyms.txt:/usr/share/elasticsearch/config/synonyms.txt
In my case ${APPLICATION}/config/packages/synonyms.txt is the path in my project code.
The path shown in the error (/usr/share/elasticsearch/config/synonyms.txt) is the path in my elasticsearch container.