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Posted to issues@flink.apache.org by "Nico Kruber (JIRA)" <ji...@apache.org> on 2018/09/17 14:39:00 UTC
[jira] [Created] (FLINK-10356) Add sanity checks to
SpillingAdaptiveSpanningRecordDeserializer
Nico Kruber created FLINK-10356:
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Summary: Add sanity checks to SpillingAdaptiveSpanningRecordDeserializer
Key: FLINK-10356
URL: https://issues.apache.org/jira/browse/FLINK-10356
Project: Flink
Issue Type: Improvement
Components: Network
Affects Versions: 1.6.0, 1.5.3, 1.5.2, 1.5.1, 1.5.0, 1.6.1, 1.7.0, 1.5.4
Reporter: Nico Kruber
Assignee: Nico Kruber
{{SpillingAdaptiveSpanningRecordDeserializer}} doesn't have any consistency checks for usage calls or serializers behaving properly, e.g. to read only as many bytes as available/promised for that record. At least these checks should be added:
# Check that buffers have not been read from yet before adding them (this is an invariant {{SpillingAdaptiveSpanningRecordDeserializer}} works with and
from what I can see, it is followed now}}.
# Check that after deserialization, we actually consumed {{recordLength}} bytes
** If not, in the spanning deserializer, we currently simply skip the remaining bytes.
** But in the non-spanning deserializer, we currently continue from the wrong offset.
# Protect against {{setNextBuffer}} being called before draining all available records
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