# List of common errors leading to "failure" in Batch Searches

## SearchException: query='AND ada'

**One or several of your queries contains syntax errors**.

It means that you wrote one or more of your queries the wrong way with some characters that are reserved as operators: [**read the list of syntax errors by clicking here**](/datashare/usage/batch-search-documents.md).

**You need to correct the error(s) in your CSV** and re-launch your new batch search with a CSV that does not contain errors. [Check how to create a batch search](/datashare/usage/batch-search-documents.md).

Datashare **stops at the first syntax error**. It reports only the first ​error. You might need to **check all your queries** as some errors can remain after correcting the first one.

Example of a syntax error message:

*SearchException: query='AND ada' message='org.icij.datashare.batch.SearchException: org.elasticsearch.client.ResponseException: method \[POST], host \[<http://elasticsearch:9200>], URI \[/local-datashare/doc/\_search?typed\_keys=true\&ignore\_unavailable=false\&expand\_wildcards=open\&allow\_no\_indices=true\&scroll=60000ms\&search\_type=query\_then\_fetch\&batched\_reduce\_size=512], status line \[HTTP/1.1 400 Bad Request] {"error":{"root\_cause":\[{"type":"query\_shard\_exception","reason":"Failed to parse query \[AND ada]","index\_uuid":"pDkhK33BQGOEL59-4cw0KA","index":"local-datashare"}],"type":"search\_phase\_execution\_exception","reason":"all shards failed","phase":"query","grouped":true,"failed\_shards":\[{"shard":0,"index":"local-datashare","node":"\_jPzt7JtSm6IgUqrtxNsjw","reason":{"type":"query\_shard\_exception","reason":"Failed to parse query \[AND ada]","index\_uuid":"pDkhK33BQGOEL59-4cw0KA","index":"local-datashare","caused\_by":{"type":"parse\_exception","reason":"Cannot parse 'AND ada': Encountered " \<AND> "AND "" at line 1, column 0.\nWas expecting one of:\n \<NOT> ...\n "+" ...\n "-" ...\n \<BAREOPER> ...\n "(" ...\n "\*" ...\n \<QUOTED> ...\n \<TERM> ...\n \<PREFIXTERM> ...\n \<WILDTERM> ...\n \<REGEXPTERM> ...\n "\[" ...\n "{" ...\n \<NUMBER> ...\n \<TERM> ...\n ","caused\_by":{"type":"parse\_exception","reason":"Encountered " \<AND> "AND "" at line 1, column 0.\nWas expecting one of:\n \<NOT> ...\n "+" ...\n "-" ...\n \<BAREOPER> ...\n "(" ...\n "\*" ...\n \<QUOTED> ...\n \<TERM> ...\n \<PREFIXTERM> ...\n \<WILDTERM> ...\n \<REGEXPTERM> ...\n "\[" ...\n "{" ...\n \<NUMBER> ...\n \<TERM> ...\n "}}}}]},"status":400}'*

## elasticsearch: Name does not resolve

If you have a message which contain '*elasticsearch: Name does not resolve*', it means that Datashare can't make Elastic Search, its search engine, work.

In that case, you need to **re-start Datashare**: check how for [Mac](/datashare/local-mode/install-datashare-on-mac/open-datashare-on-mac.md), [Windows](/datashare/local-mode/install-datashare-on-windows/open-datashare-on-windows.md) or [Linux](/datashare/local-mode/install-datashare-on-linux/open-datashare-on-linux.md).

Example of a message regarding a problem with ElasticSearch:

*SearchException: query='lovelace' message='org.icij.datashare.batch.SearchException: java.io.IOException: elasticsearch: Name does not resolve'*


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://icij.gitbook.io/datashare/usage/faq/common-errors/list-of-common-errors-leading-to-failure-in-batch-searches.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.