Expected starting JSON object after in watch – Elasticsearch Error How To Solve Related Issues

Expected starting JSON object after in watch – Elasticsearch Error How To Solve Related Issues

Updated: July-20

Elasticsearch Version: 1.7-8.0

Before you begin reading this guide, we recommend you try running the Elasticsearch Error Check-Up  which can resolve issues causing many errors 


This guide will help you check for common problems that cause the log “Expected starting JSON object after in watch” to appear. It’s important to understand the issues related to the log, so to get started, read the general overview on common issues and tips related to the Elasticsearch concepts: plugin.

Advanced users might want to skip right to the common problems section in each concept or try running the Check-Up which analyses ES to discover the cause of many errors and provides suitable actionable recommendations (free tool that requires no installation). 

Log Context

Log”Expected starting JSON object after [{}] in watch [{}]”classname  is ChainInput.java
We extracted the following from Elasticsearch source code for those seeking an in-depth context :

  private static Input parseSingleInput(String watchId; String name; XContentParser parser;
  InputRegistry inputRegistry) throws IOException {
  if (parser.nextToken() != XContentParser.Token.START_OBJECT) {
  throw new ElasticsearchParseException("Expected starting JSON object after [{}] in watch [{}]"; name; watchId);
  Input input = inputRegistry.parse(watchId; parser).input();
  // expecting closing of two json object to start the next element in the array

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 BULK API : Malformed action/metadata line [3], expected START_OBJECT but found [VALUE_STRING] -views 11,127 ,score 10

elasticsearch watcher could not parse search input -views   1,296,score 1

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