apache/flink · error · ParquetDecodingException

Failed to read a byte

Error message

Failed to read a byte

What it means

Error "Failed to read a byte" thrown in apache/flink.

Source

Thrown at flink-formats/flink-parquet/src/main/java/org/apache/flink/formats/parquet/vector/reader/BooleanColumnReader.java:101

                            column.setBoolean(rowId + i, readBoolean());
                        } else {
                            column.setNullAt(rowId + i);
                        }
                    }
                    break;
            }
            rowId += n;
            left -= n;
            runLenDecoder.currentCount -= n;
        }
    }

    private boolean readBoolean() {
        if (bitOffset == 0) {
            try {
                currentByte = (byte) dataInputStream.read();
            } catch (IOException e) {
                throw new ParquetDecodingException("Failed to read a byte", e);
            }
        }

        boolean v = (currentByte & (1 << bitOffset)) != 0;
        bitOffset += 1;
        if (bitOffset == 8) {
            bitOffset = 0;
        }
        return v;
    }
}

View on GitHub (pinned to 2f3c205e92)

Solutions

1. Address the cause reported by the error message: Failed to read a byte
2. Verify the inputs, configuration values, and classpath/dependency setup related to this operation, then retry.

Example fix

Correct the condition described ("Failed to read a byte") and rerun the job or command.

When it happens

Trigger: Triggered at runtime when the operation fails because: Failed to read a byte.

Common situations: Commonly caused by misconfiguration, missing dependencies or files, unsupported types or operations, or invalid user input leading to: Failed to read a byte.

AI-assisted analysis of apache/flink@2f3c205e92 (2026-08-14). Data as JSON: /api/errors/d5d496ff4d83a417. Report an issue: GitHub.