RecoverFromTranslog – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 8.9-8.9

Briefly, this error occurs when Elasticsearch encounters an issue while trying to recover data from the transaction log (translog). This could be due to a corrupted translog or a disk I/O error. To resolve this issue, you can try the following: 1) Restart the Elasticsearch node, which may help if the issue is temporary. 2) Delete the corrupted translog files, but this could lead to data loss. 3) Restore the data from a snapshot if you have one. Always ensure to back up your data regularly to prevent such issues.

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

Log Context

Log “recoverFromTranslog” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 throw runtimeException;
 } else {
 // the old code was "throws IOException" so we shouldn't see any other exception types here
 logger.error("checked non-IOException unexpectedly thrown"; e);
 assert false : e;
 throw new UncategorizedExecutionException("recoverFromTranslog"; e);
 } catch (InterruptedException e) {
 // We don't really use interrupts in this area so this is somewhat unexpected (unless perhaps we're shutting down); just treat
 // it like any other exception.


How helpful was this guide?

We are sorry that this post was not useful for you!

Let us improve this post!

Tell us how we can improve this post?