Magma DCP runs failed due to memcached issues on build 0.0.0-2297

Magma DCP runs failed on build 0.0.0-2297. I saw these memcached error messages in the log.

Control connection to memcached on 'ns_1@172.23.97.21' disconnected. Check logs for details.

Service 'memcached' exited with status 134. Restarting. Messages:

2021-06-14T17:24:30.909449-07:00 CRITICAL #22 /opt/couchbase/bin/../lib/libevent_core-2.1.so.7() [0x7f48661ea000+0xed8e]

2021-06-14T17:24:30.909461-07:00 CRITICAL #23 /opt/couchbase/bin/../lib/libevent_core-2.1.so.7() [0x7f48661ea000+0x17d01]

2021-06-14T17:24:30.909468-07:00 CRITICAL #24 /opt/couchbase/bin/../lib/libevent_core-2.1.so.7(event_base_loop+0x3bf) [0x7f48661ea000+0x1854f]

2021-06-14T17:24:30.909513-07:00 CRITICAL #25 /opt/couchbase/bin/memcached() [0x400000+0x751fb7]

2021-06-14T17:24:30.909556-07:00 CRITICAL #26 /opt/couchbase/bin/memcached() [0x400000+0x752486]

2021-06-14T17:24:30.909595-07:00 CRITICAL #27 /opt/couchbase/bin/memcached() [0x400000+0x753e46]

2021-06-14T17:24:30.909622-07:00 CRITICAL #28 /opt/couchbase/bin/memcached() [0x400000+0x19ba89]

2021-06-14T17:24:30.909663-07:00 CRITICAL #29 /opt/couchbase/bin/memcached() [0x400000+0x6ea959]

2021-06-14T17:24:30.909675-07:00 CRITICAL #30 /lib64/libpthread.so.0() [0x7f4866cfc000+0x7e65]

2021-06-14T17:24:30.909727-07:00 CRITICAL #31 /lib64/libc.so.6(clone+0x6d) [0x7f486476a000+0xfe88d]

Build: 0.0.0-2297

Job: http://perf.jenkins.couchbase.com/job/rhea-5node1/1235/

Logs: 
https://s3.amazonaws.com/bugdb/jira/qe/collectinfo-2021-06-15T002554-ns_1%40172.23.97.21.zip
https://s3.amazonaws.com/bugdb/jira/qe/collectinfo-2021-06-15T002554-ns_1%40172.23.97.22.zip
https://s3.amazonaws.com/bugdb/jira/qe/collectinfo-2021-06-15T002554-ns_1%40172.23.97.23.zip
https://s3.amazonaws.com/bugdb/jira/qe/collectinfo-2021-06-15T002554-ns_1%40172.23.97.24.zip