apache/flink · error · RuntimeException

Error serializing Record header: %s

Error message

Error serializing Record header: %s

What it means

Error "Error serializing Record header: %s" thrown in apache/flink.

Source

Thrown at flink-core/src/main/java/org/apache/flink/types/Record.java:1103

                            mask |= (offsets[col] != NULL_INDICATOR_OFFSET) ? 0x1 : 0x0;
                        }
                        serializer.writeByte(mask);
                    }

                    // now the eight-bit chunks
                    for (i = numFields >>> 3; i > 0; i--) {
                        mask = 0;
                        for (int k = 0; k < 8; k++, col--) {
                            mask <<= 1;
                            mask |= (offsets[col] != NULL_INDICATOR_OFFSET) ? 0x1 : 0x0;
                        }
                        serializer.writeByte(mask);
                    }
                }
            }
            serializer.writeValLenIntBackwards(numFields);
        } catch (Exception e) {
            throw new RuntimeException("Error serializing Record header: " + e.getMessage(), e);
        }
    }

    // --------------------------------------------------------------------------------------------
    //                             Serialization
    // --------------------------------------------------------------------------------------------

    @Override
    public void write(DataOutputView out) throws IOException {
        // make sure everything is in a valid binary representation
        updateBinaryRepresenation();

        // write the length first, variably encoded, then the contents of the binary array
        writeVarLengthInt(out, this.binaryLen);
        out.write(this.binaryData, 0, this.binaryLen);
    }

    @Override

View on GitHub (pinned to 2f3c205e92)

Solutions

1. Address the cause reported by the error message: Error serializing Record header: the reported value
2. Verify the inputs, configuration values, and classpath/dependency setup related to this operation, then retry.

Example fix

Correct the condition described ("Error serializing Record header: the reported value") and rerun the job or command.

When it happens

Trigger: Triggered at runtime when the operation fails because: Error serializing Record header: the reported value.

Common situations: Commonly caused by misconfiguration, missing dependencies or files, unsupported types or operations, or invalid user input leading to: Error serializing Record header: the reported value.

AI-assisted analysis of apache/flink@2f3c205e92 (2026-08-14). Data as JSON: /api/errors/a7648f806a2eb5cc. Report an issue: GitHub.