Github user calvinjia commented on the pull request:
https://github.com/apache/spark/pull/4867#issuecomment-88985837
@srowen @syepes I'm planning to re-open this when Tachyon 0.6.2 is
available. There were two problems encountered in the tests:
1. HTTPClient version mismatch: Selenium (used for UI tests) requires
version 4.3.x, and Tachyon included 4.2.5 through a transitive dependency of
its shaded thrift jar. To address this, Tachyon 0.6.2 will promote the
transitive dependencies of the shaded jar so they can be excluded in spark.
2. Jackson-Mapper-ASL version mismatch: In lower versions of hadoop-client
(ie. 1.0.4), version 1.0.1 is included. The parquet library used in spark sql
requires version 1.8+. Its unclear to me why upgrading tachyon-client would
cause this dependency to break. The solution was to exclude jackson-mapper-asl
from hadoop-client. If there is a better way to handle this issue, please let
me know.
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