(draft) make sure no leftover rsync processes after mtr

ps auxw | grep mysqld

a         7853  0.3  0.0   9940  2988 pts/1    S    22:44   0:00 /bin/bash -ue /home/a/env1/m2-10.0-galera/bld/scripts/wsrep_sst_rsync --role joiner --address 127.0.0.1:16008 --datadir /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/mysqld.3/data/ --defaults-file /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/my.cnf --defaults-group-suffix .3 --parent 7791 --binlog master-bin

a         7943  0.0  0.0  11152   952 pts/1    S    22:44   0:00 rsync --daemon --no-detach --port 16008 --config /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/mysqld.3/data//rsync_sst.conf

a        16484  0.0  0.0  14240   932 pts/6    S+   22:48   0:00 grep --color=auto mysqld

 ./mtr --mem --enable-disabled --force  galera_as_slave_replication_bundle

Logging: /home/a/env1/m2-10.0-galera/src/mysql-test/mysql-test-run.pl  --mem --enable-disabled --force galera_as_slave_replication_bundle

vardir: /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var

Checking leftover processes...

Removing old var directory...

Creating var directory '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var'...

 - symlinking 'var' to '/dev/shm/var_auto_VjD1'

Checking supported features...

MariaDB Version 10.0.33-MariaDB-wsrep

 - SSL connections supported

Sphinx 'indexer' binary not found, sphinx suite will be skipped

Collecting tests...

 - galera.galera_as_slave_replication_bundle wil be run although it's been disabled

   due to 'MDEV-13549 Galera test failures'

Installing system database...

==============================================================================

TEST                                      RESULT   TIME (ms) or COMMENT

--------------------------------------------------------------------------

worker[1] Using MTR_BUILD_THREAD 300, with reserved ports 16000..16019

worker[1] mysql-test-run: WARNING: Process [mysqld.3 - pid: 7511, winpid: 7511, exit: 256] died after mysql-test-run waited 6.4 seconds for /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/run/mysqld.3.pid to be created.

galera.galera_as_slave_replication_bundle 'innodb_plugin' [ fail ]

        Test ended at 2017-11-04 22:44:43

CURRENT_TEST: galera.galera_as_slave_replication_bundle

Failed to start mysqld.3

mysqltest failed but provided no output

 - saving '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/log/galera.galera_as_slave_replication_bundle-innodb_plugin/' to '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/log/galera.galera_as_slave_replication_bundle-innodb_plugin/'

***Warnings generated in error logs during shutdown after running tests: galera.galera_as_slave_replication_bundle

171104 22:44:38 [ERROR] WSREP: Failed to read from: wsrep_sst_rsync --role 'donor' --address '127.0.0.1:16008/rsync_sst' --socket '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/tmp/mysqld.2.sock' --datadir '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/mysqld.2/data/' --defaults-file '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/my.cnf' --defaults-group-suffix '.2'  --binlog 'master-bin' --gtid '5a6903d9-c1a9-11e7-8d6a-6f0a27b55e8c:0'

171104 22:44:38 [ERROR] WSREP: Process completed with error: wsrep_sst_rsync --role 'donor' --address '127.0.0.1:16008/rsync_sst' --socket '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/tmp/mysqld.2.sock' --datadir '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/mysqld.2/data/' --defaults-file '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/my.cnf' --defaults-group-suffix '.2'  --binlog 'master-bin' --gtid '5a6903d9-c1a9-11e7-8d6a-6f0a27b55e8c:0': 1 (Operation not permitted)

171104 22:44:38 [ERROR] WSREP: Command did not run: wsrep_sst_rsync --role 'donor' --address '127.0.0.1:16008/rsync_sst' --socket '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/tmp/mysqld.2.sock' --datadir '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/mysqld.2/data/' --defaults-file '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/my.cnf' --defaults-group-suffix '.2'  --binlog 'master-bin' --gtid '5a6903d9-c1a9-11e7-8d6a-6f0a27b55e8c:0'

171104 22:44:38 [Warning] WSREP: 0.0 (UBINTI): State transfer to 1.0 (UBINTI) failed: -1 (Operation not permitted)

171104 22:44:38 [Warning] WSREP: 0.0 (UBINTI): State transfer to 1.0 (UBINTI) failed: -1 (Operation not permitted)

171104 22:44:38 [ERROR] WSREP: gcs/src/gcs_group.cpp:gcs_group_handle_join_msg():736: Will never receive state. Need to abort.

worker[1] mysql-test-run: WARNING: Waited 60 seconds for /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/run/mysqld.3.pid to be created, still waiting for 120 seconds...

worker[1] mysql-test-run: WARNING: Waited 120 seconds for /home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/run/mysqld.3.pid to be created, still waiting for 60 seconds...

worker[1] mysql-test-run: WARNING: Timeout after mysql-test-run waited 180 seconds for the process [mysqld.3 - pid: 7790, winpid: 7790] to create a pid file.

galera.galera_as_slave_replication_bundle 'xtradb' [ fail ]

        Test ended at 2017-11-04 22:47:44

CURRENT_TEST: galera.galera_as_slave_replication_bundle

CURRENT_TEST: galera.galera_as_slave_replication_bundle

Failed to start mysqld.3

 - saving '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/log/galera.galera_as_slave_replication_bundle-xtradb/' to '/home/a/env1/_depot/m-branch/m2-10.0-galera-bld/mysql-test/var/log/galera.galera_as_slave_replication_bundle-xtradb/'

***Warnings generated in error logs during shutdown after running tests: galera.galera_as_slave_replication_bundle

WSREP_SST: [ERROR] Parent mysqld process (PID:7512) terminated unexpectedly. (20171104 22:44:44.074)