--- title: "加密块 blobName 过小 bytesRead —— 如何解决此 Elasticsearch 异常" date: 2026-01-01 lastmod: 2026-01-01 description: "当 Elasticsearch 中的加密块(一种数据文件)小于预期大小时会发生此错误。这可能是由于数据损坏或数据传输不完整导致的。" tags: ["加密", "数据块", "RepositoryException", "数据完整性"] summary: "版本: 7.12-8.6 简而言之,当 Elasticsearch 中的加密块(一种数据文件)小于预期大小时,会发生此错误。这可能是由于数据损坏或数据传输不完整导致的。要解决此问题,你可以尝试重新索引数据,确保数据传输完成,或检查数据文件是否存在损坏。如果问题仍然存在,请考虑检查你的加密设置或你的数据与 Elasticsearch 的兼容性。 日志上下文 # 日志 “The encrypted blob [” + blobName + “] is too small [” + bytesRead + “]” 的类名是 EncryptedRepository.java. 我们从 Elasticsearch 源代码中提取了以下内容,供那些寻求深入上下文的人参考: try { // read the DEK Id (fixed length) which is prepended to the encrypted blob final byte[] dekIdBytes = new byte[DEK_ID_LENGTH]; final int bytesRead = Streams.readFully(encryptedDataInputStream; dekIdBytes); if (bytesRead != DEK_ID_LENGTH) { throw new RepositoryException(repositoryName; "The encrypted blob [" + blobName + "] is too small [" + bytesRead + "]"); } final String dekId = new String(dekIdBytes; StandardCharsets." --- > **版本:** 7.12-8.6 简而言之,当 Elasticsearch 中的加密块(一种数据文件)小于预期大小时,会发生此错误。这可能是由于数据损坏或数据传输不完整导致的。要解决此问题,你可以尝试重新索引数据,确保数据传输完成,或检查数据文件是否存在损坏。如果问题仍然存在,请考虑检查你的加密设置或你的数据与 Elasticsearch 的兼容性。 日志上下文 ----------- 日志 "The encrypted blob [" + blobName + "] is too small [" + bytesRead + "]" 的类名是 [EncryptedRepository.java.](https://www.geeksforgeeks.org/java-lang-class-class-java-set-1/) 我们从 Elasticsearch 源代码中提取了以下内容,供那些寻求深入上下文的人参考: ```java try { // read the DEK Id (fixed length) which is prepended to the encrypted blob final byte[] dekIdBytes = new byte[DEK_ID_LENGTH]; final int bytesRead = Streams.readFully(encryptedDataInputStream; dekIdBytes); if (bytesRead != DEK_ID_LENGTH) { throw new RepositoryException(repositoryName; "The encrypted blob [" + blobName + "] is too small [" + bytesRead + "]"); } final String dekId = new String(dekIdBytes; StandardCharsets.UTF_8); // might open a connection to read and decrypt the DEK; but most likely it will be served from cache final SecretKey dek = getDEKById.apply(dekId); // read and decrypt the rest of the blob ```