distcp -skipcrccheck has no effect
----------------------------------
Key: HDFS-3054
URL: https://issues.apache.org/jira/browse/HDFS-3054
Project: Hadoop HDFS
Issue Type: Bug
Components: tools
Affects Versions: 0.23.2
Reporter: patrick white
Using distcp with '-skipcrccheck' still seems to cause CRC checksums to happen.
Ran into this while debugging an issue associated with source and destination
having different blocksizes, and not using the preserve blocksize parameter
(-pb). In both 23.1 and 23.2 builds, trying to bypass the checksum verification
by using the '-skipcrcrcheck' parameter had no effect, the distcp still failed
on checksum errors.
Test scenario to reproduce;
do not use '-pb' and try a distcp from 20.205 (default blksize=128M) to .23
(default blksize=256M), the distcp fails on checksum errors, which is expected
due to checksum calculation (tiered aggregation of all blks). Trying the same
distcp only providing '-skipcrccheck' still fails with the same checksum error,
it is expected that checksum would now be bypassed and the distcp would proceed.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
