Hongbing Wang created HDDS-11209:
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Summary: Avoid insufficient EC pipelines in the container pipeline
cache
Key: HDDS-11209
URL: https://issues.apache.org/jira/browse/HDDS-11209
Project: Apache Ozone
Issue Type: Bug
Components: EC, OM
Affects Versions: 1.4.0
Reporter: Hongbing Wang
Assignee: Hongbing Wang
OM cached pipeline may not have completed caching container's all datanode
information (for example, some DNs may not have reported back yet after the SCM
restarts, or some DNs may not report due to some reasons ), which can be
problematic for EC files. If the nodes num is less than the EC data-blocks num,
an error will occur when reading data:
{code:java}
There are insufficient datanodes to read the EC block {code}
This err will persist until the cache expires (after 6 hours).
So, we should not cache EC pipelines with incomplete data-nodes.
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