A large number of pending tasks lock the elastic

Elasticsearch version 5.6.10
Application - graylog
Suddenly a large amount of pending tasks is created, preventing processing data to indices.
All of type put-mapping , 300-400 tasks
insertOrder timeInQueue priority source
45061687 4.3s HIGH put-mapping

After several hours tasks disappear and application works properly.
Please any suggestions, how to "release" ES when such amount of pending tasks is created?
Thanks in advance

The issue resolved. It was the index.mapping.total_fields.limit issue

This is the issue addressed by
#48867 which will be released in 7.6.0.

1 Like

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.