Failed to write operation operation – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch fails to write a specific operation due to issues like insufficient disk space, incorrect file permissions, or network connectivity problems. To resolve this, you can free up disk space, check and correct file permissions, or troubleshoot network issues. Additionally, ensure that the Elasticsearch cluster is not in a read-only state, and the index you’re trying to write to is not closed or deleted.

This guide will help you check for common problems that cause the log ” Failed to write operation [” + operation + “] ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “Failed to write operation [” + operation + “]” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 } catch (final AlreadyClosedException | IOException ex) {
 throw ex;
 } catch (final Exception ex) {
 throw new TranslogException(shardId; "Failed to write operation [" + operation + "]"; ex);
 } finally {