Github user dlyle65535 commented on the issue:
https://github.com/apache/incubator-metron/pull/397
I was able to duplicate the failures in my environment by doing the
following (based on what Travis does).
```
mkdir mike_test
cd mike_test
git clone --depth=50 https://github.com/apache/incubator-metron.git
apache/incubator-metron
cd apache/incubator-metron/
git fetch origin +refs/pull/397/merge
git checkout -qf FETCH_HEAD
mvn -q integration-test install && build_utils/verify_licenses.sh
```
It bombs out with:
```
cardinality_gives_distinct_value_estimate_with_precisions_set(org.apache.metron.statistics.approximation.HyperLogLogPlusFunctionsIntegrationTest)
Time elapsed: 0.004 sec <<< ERROR!
org.apache.metron.common.dsl.ParseException: Unable to parse
HLLP_CARDINALITY(
HLLP_ADD(
HLLP_ADD(
HLLP_INIT(5, 6),
val1
),
val2
)
)
: Syntax error @ 8:3 no viable alternative at input
'HLLP_CARDINALITY(HLLP_ADD(HLLP_ADD(HLLP_INIT(5,6),val1),val2)\n'
```
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