Server does not shut down with SIGTERM after installing Spider 3.3 plugin

Problem: After installing the spider plugin I tried to shut the server down and it just stuck.

• Compiled from source on CentOS 7
• installed into /usr/local/mysql via make install.
• I ran a clean setup into an empty datadir. /usr/local/mysql/scripts/mysql_install_db --user=mysql --datadir=/path/to/datadir
• Started mysqld with /usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnf --user=mysql
• I installed the spider plugin with: mysql < /usr/local/mysql/share//install_spider.sql
• I tried to stop the server with KILL -TERM to mysqld process

Logging from server shows:

2017-12-04 16:13:54 0 [Note] Got signal 15 to shutdown mysqld

2017-12-04 16:13:54 0 [Note] /usr/local/mysql/bin/mysqld (unknown): Normal shutdown

2017-12-04 16:13:54 0 [Note] InnoDB: FTS optimize thread exiting.

2017-12-04 16:13:54 0 [Note] Event Scheduler: Killing the scheduler thread, thread id 6

2017-12-04 16:13:54 0 [Note] Event Scheduler: Waiting for the scheduler thread to reply

2017-12-04 16:13:54 0 [Note] Event Scheduler: Stopped

2017-12-04 16:13:54 0 [Note] Event Scheduler: Purging the queue. 0 events

2017-12-04 16:15:43 0 [Note] Got signal 15 to shutdown mysqld

2017-12-04 16:16:03 0 [Note] Got signal 15 to shutdown mysqld

2017-12-04 16:16:05 0 [Note] Got signal 15 to shutdown mysqld

but it does not shutdown.

There is no specific spider configuration (yet).

Build is from commit: 60c446584c614f19f9 in branch 10.3

My expectation is that mysqld would close down cleanly and stop.