prestodb/presto · error · RuntimeException

Error reading dictionary page

Error message

Error reading dictionary page

What it means

Wraps an IOException raised while decrypting/decompressing the dictionary page in readDictionaryPage — the modular-encryption AAD or the compressed payload failed, meaning the dictionary page is corrupt or the decryption context (keys, AAD) is wrong.

Source

Thrown at presto-parquet/src/main/java/com/facebook/presto/parquet/reader/PageReader.java:153

        catch (IOException e) {
            throw new RuntimeException("Could not decompress page", e);
        }
    }

    public DictionaryPage readDictionaryPage()
    {
        if (compressedDictionaryPage == null) {
            return null;
        }
        try {
            Slice slice = decryptSliceIfNeeded(compressedDictionaryPage.getSlice(), dictionaryPageAdditionalAuthenticationData);
            return new DictionaryPage(
                    decompress(codec, slice, compressedDictionaryPage.getUncompressedSize()),
                    compressedDictionaryPage.getDictionarySize(),
                    compressedDictionaryPage.getEncoding());
        }
        catch (IOException e) {
            throw new RuntimeException("Error reading dictionary page", e);
        }
    }

    public long getRetainedSizeInBytes()
    {
        return INSTANCE_SIZE +
                (compressedDictionaryPage == null ? 0 : compressedDictionaryPage.getRetainedSizeInBytes()) +
                sizeOf(dataPageAdditionalAuthenticationData) +
                sizeOf(dictionaryPageAdditionalAuthenticationData);
    }

    // additional authenticated data for AES cipher
    private Slice decryptSliceIfNeeded(Slice slice, byte[] additionalAuthenticationData)
            throws IOException
    {
        if (!blockDecryptor.isPresent()) {
            return slice;
        }

View on GitHub (pinned to 55bb57d202)

Solutions

1. Verify encryption keys and footer/key metadata are correct for this file
2. Restore the file if corrupt (checksum the object)
3. Confirm writer and reader agree on Parquet modular encryption settings

When it happens

Trigger: Thrown at presto-parquet/src/main/java/com/facebook/presto/parquet/reader/PageReader.java:153 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of prestodb/presto@55bb57d202 (2026-09-04). Data as JSON: /api/errors/8b1e4ac4962b26b8. Report an issue: GitHub.