This commit fixes problems with parsing ipv6 addresses given via
the wsrep_sst_receive_address and wsrep_node_address options.
Also, this commit removes extra lines in the configuration files
in the mtr test suites for Galera related to these parameters.
The following features have been added:
1) Automatic addition of the pf = ip6 option for socat
when it can be recognized by the format of the connection
address;
2) Automatically add or remove extra commas at the beginning
and at the end of sockopt, for example, sockopt='pf=ip6'
and sockopt=',pf=ip6' work equally well;
Also, due to interference in the code of the get_transfer()
function, I also refactored it and now:
3) encrypt = 4 is supported not only for xtrabackup-v2,
but also for mariabackup - this can help with migration
from Percona;
4) Improved setting of 'commonname' option for encrypt=3
and encrypt=4 modes;
This patch fixes several flaws in the SST scripts that cause
failures while running tests that use version 6 IP addresses
for cluster nodes.
First, if the netcat utility is used for streaming (but not socat),
then in accordance with its command line syntax, we need to remove
the square brackets around the IPv6 address. However, for socat,
the address must contain square brackets, as before.
Secondly, if an IPv6 address is used, then from the joiner side for
a number of systems (such as Debian) we need to explicitly specify
the "-6" option, otherwise a listening socket with an IPv6 address
may not be created.
This patch also contains code improvements in the wsrep_sst_common.
Changed the code that pars the connection address - fixed the
shortcomings that sometimes led to incorrect parsing of parameters
when using shells other than the latest versions of bash.
Also, this patch removes the duplicate code that is intended
for parsing the connection address and which was located in the
wsrep_sst_mariabackup file, since all the necessary actions have
already been done in wsrep_sst_common and there they are done in
such a way that any shell is supported, not just bash.
The fix does not require separate tests, since all the
necessary tests are already present in the galera_3nodes suite.
On the contrary, after this fix, tests using IPv6 addresses can
be removed from the disabled list (this will be done in a separate
commit related to MDEV-23659).
This patch contains the port of the MDEV-18379 patch
for 10.1 branch, but also includes a number of changes
made within MDEV-17835, which are necessary for the
normal operation of tests that use IPv6:
1) Fixed flaws in the galera_3nodes mtr suite control scripts,
because of which they could not work with mariabackup.
2) Fixed numerous bugs in the SST scripts and in the mtr test
files (galera_3nodes mtr suite) that prevented the use of Galera
with IPv6 addresses.
3) Fixed flaws in tests for rsync and mysqldump (for galera_3nodes
mtr tests suite). These tests were not performed successfully
without these fixes.
4) Currently, the three-node mtr suite for Galera (galera_3nodes)
uses a separate IPv6 availability check using the "have_ipv6.inc"
file. This check duplicates a more accurate check at suite.pm
level, which can be used by including the file "check_ipv6.inc".
This patch removes this discrepancy between suites.
5) GAL-501 test in the galera_3nodes suite does not contain the
option "--bind-address=::" which is needed for the test to work
correctly with IPv6 (at least on some systems), since without
it the server will not wait for connections on the IPv6 interface.
https://jira.mariadb.org/browse/MDEV-18379
and partially https://jira.mariadb.org/browse/MDEV-17835
