Failed to associate a new translog – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 7.8-8

Briefly, this error occurs when Elasticsearch is unable to associate a new transaction log (translog) with an index. This could be due to a disk space issue, a file permission problem, or a corrupted translog. To resolve this, you can try freeing up disk space, checking and correcting file permissions, or deleting the corrupted translog. However, be cautious with the latter as it may lead to data loss. Always ensure you have a backup before performing such operations.

This guide will help you check for common problems that cause the log ” failed to associate a new translog ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: allocation, plugin.

Log Context

Log “failed to associate a new translog” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 final long primaryTerm = indexShard.getPendingPrimaryTerm();
 final String translogUUID = segmentInfos.userData.get(Translog.TRANSLOG_UUID_KEY);
 final Path translogLocation = indexShard.shardPath().resolveTranslog();
 Translog.createEmptyTranslog(translogLocation; shardId; localCheckpoint; primaryTerm; translogUUID; null);
 } catch (Exception e) {
 throw new TranslogException(shardId; "failed to associate a new translog"; e);
 }  @Override
 public void beforeIndexRemoved(IndexService indexService; IndexRemovalReason reason) {