Reached premature end of file translog is truncated – How to solve this Elasticsearch exception

Opster Team

August-23, Version: 6.8-8.9

Briefly, this error occurs when Elasticsearch encounters an unexpected end in the translog file, which may be due to a system crash or disk failure. The translog file is crucial for data recovery. To resolve this issue, you can try to restore from a snapshot if available. If not, you can delete the corrupted translog files, but this may result in data loss. Another option is to use the Elasticsearch “translog recovery tool” to recover as much data as possible from the corrupted translog.

This guide will help you check for common problems that cause the log ” reached premature end of file; translog is truncated ” to appear. To understand the issues related to this log, read the explanation below about the following Elasticsearch concepts: index.

Log Context

Log “reached premature end of file; translog is truncated” class name is We extracted the following from Elasticsearch source code for those seeking an in-depth context :

 operation = Translog.Operation.readOperation(in);
 } catch (EOFException e) {
 throw new TruncatedTranslogException(in.getSource(); "reached premature end of file; translog is truncated"; e);
 return operation;
 }  /**


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