impala newest release 10.11 disabled unlimited memory option WITH -1 B according to this issue:
https://issues.apache.org/jira/browse/IMPALA-5653
At the same time cloudera still recommends setting it in its information for Impala Daemon Memory Limit -1 B
"Memory limit in bytes for Impala Daemon, enforced by the daemon itself. If reached, queries running on the Impala
Daemon may be killed. Leave it blank to let Impala pick its own limit. Use a value of -1 B to specify no limit."
This is false.