# Bulk API Indexing failed -- IndexMissingException **URL:** \ **Category:** Elasticsearch\ **Created:** [August 17, 2012, 9:34pm UTC](https://discuss.elastic.co/t/bulk-api-indexing-failed-indexmissingexception/8776 "2012-08-17T21:34:45Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Sushant\_Shankar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/sushant_shankar/32/2652_2.png) [@Sushant\_Shankar](https://discuss.elastic.co/u/Sushant_Shankar)\ **Post date:** [August 17, 2012, 9:34pm UTC](https://discuss.elastic.co/t/bulk-api-indexing-failed-indexmissingexception/8776/1 "2012-08-17T21:34:45Z")
I am using Elastic Search to index ~600M documents per day containing several text fields. I have been trying to optimize the index building process and am running into some snags. Using 64 shards for 8 nodes, ES indexes ~460M documents in 90 minutes before I get an IndexMissingException and lose shards, at which point one of the 8 nodes starts throwing IndexMissingException's, causing the Map-Reduce job to throw enough errors to stop the index building process. Setup: - Dedicated 8 node cluster (each node has 12GB RAM, quad core, 8GB heap space for Elastic Search of that) - ES v0.19.8 - Separate cluster that runs a Map-Reduce job (I use 60 mappers) that populate an index through the bulk API (each request contains a maximum of 10,000 requests) - Successful full index build (all documents) from running the Map-Reduce index building and ES on same nodes. - ~600M documents (which takes up ~250GB) - No replicas while indexing (planning to make 1 replica after indexing) Failure (changed IP address to be localhost): > Any insights or help would be much appreciated! Thanks! Sushant -- ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 3:15am UTC](https://discuss.elastic.co/t/bulk-api-indexing-failed-indexmissingexception/8776/2 "2017-07-06T03:15:58Z")