Todd Lipcon created HDFS-4298:
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Summary: StorageRetentionManager spews warnings when used with QJM
Key: HDFS-4298
URL: https://issues.apache.org/jira/browse/HDFS-4298
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 3.0.0, 2.0.3-alpha
Reporter: Todd Lipcon
Assignee: Aaron T. Myers
When the NN is configured with a QJM, we see the following warning message
every time a checkpoint is made or uploaded:
12/12/10 16:07:52 WARN namenode.FSEditLog: Unable to determine input streams
from QJM to [127.0.0.1:13001, 127.0.0.1:13002, 127.0.0.1:13003]. Skipping.
org.apache.hadoop.hdfs.qjournal.client.QuorumException: Got too many exceptions
to achieve quorum size 2/3. 3 exceptions thrown:
127.0.0.1:13002: Asked for firstTxId 114837 which is in the middle of file
/tmp/jn-2/myjournal/current/edits_0000000000000095185-0000000000000114846
...
This is because, since HDFS-2946, the NN calls {{selectInputStreams}} to
determine the number of log segments and put a cap on the number. This API
throws an exception in the case of QJM if the argument falls in the middle of
an edit log boundary.
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