elasticsearch config_error ai_generated true

ElasticsearchParseException: failed to parse search template [my_template]; error: Mustache syntax error at line 3: unexpected character '}'

ID: elasticsearch/search-template-parsing-error

Also available as: JSON · Markdown · 中文
90%Fix Rate
86%Confidence
1Evidence
2024-03-18First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
7.15.0 active — — —
8.7.0 active — — —
8.13.0 active — — —

Root Cause

A search template defined in Elasticsearch contains invalid Mustache syntax, such as mismatched braces or incorrect variable interpolation, causing template parsing to fail.

generic

中文

Elasticsearch中定义的搜索模板包含无效的Mustache语法，例如不匹配的花括号或错误的变量插值，导致模板解析失败。

Official Documentation

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-template.html

Workarounds

  1. 95% success Retrieve the template definition using GET /_scripts/my_template, fix the Mustache syntax (e.g., replace unmatched '}' with '{{/query}}'), and update it using PUT /_scripts/my_template with the corrected source. Example fix: change '{{#query}} {{field}} }' to '{{#query}} {{field}} {{/query}}'. 
    Retrieve the template definition using GET /_scripts/my_template, fix the Mustache syntax (e.g., replace unmatched '}' with '{{/query}}'), and update it using PUT /_scripts/my_template with the corrected source. Example fix: change '{{#query}} {{field}} }' to '{{#query}} {{field}} {{/query}}'.
  2. 80% success Use an inline template in the search query instead of a stored template to bypass the parsing issue temporarily: GET /_search/template { 'source': { 'query': { 'match': { 'field': '{{value}}' } } }, 'params': { 'value': 'test' } } 
    Use an inline template in the search query instead of a stored template to bypass the parsing issue temporarily: GET /_search/template { 'source': { 'query': { 'match': { 'field': '{{value}}' } } }, 'params': { 'value': 'test' } }

中文步骤

  1. Retrieve the template definition using GET /_scripts/my_template, fix the Mustache syntax (e.g., replace unmatched '}' with '{{/query}}'), and update it using PUT /_scripts/my_template with the corrected source. Example fix: change '{{#query}} {{field}} }' to '{{#query}} {{field}} {{/query}}'.
  2. Use an inline template in the search query instead of a stored template to bypass the parsing issue temporarily: GET /_search/template { 'source': { 'query': { 'match': { 'field': '{{value}}' } } }, 'params': { 'value': 'test' } }

Dead Ends

Common approaches that don't work:

  1. 95% fail

    Re-saving the template with the same invalid syntax will produce the same error; the template must be corrected first.

  2. 85% fail

    Clearing the search template cache via POST /_cache/clear does not fix the underlying template definition.