Adding upstream version 1:10.11.6.upstream/1%10.11.6

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 262 insertions, 0 deletions

diff --git a/mysql-test/include/rpl_change_topology.inc b/mysql-test/include/rpl_change_topology.inc
new file mode 100644
index 00000000..b63700b0
--- /dev/null
+++ b/mysql-test/include/rpl_change_topology.inc
@@ -0,0 +1,262 @@
+# ==== Purpose ====
+#
+# Changes replication topology. This file is normally sourced from
+# include/rpl_init.inc, but test cases can also source it if they
+# need to change topology after they have sourced include/rpl_init.inc
+#
+# This file sets up variables needed by include/rpl_sync.inc and many
+# other replication scripts in the include/ directory. It also issues
+# CHANGE MASTER on all servers where the configuration changes from
+# what it was before. It does not issue START SLAVE (use
+# include/rpl_start_slaves.inc for that).
+#
+# Note: it is not currently possible to change the number of servers
+# after the rpl_init.inc, without first calling rpl_end.inc. So the
+# test has to set $rpl_server_count to the total number of servers
+# that the test uses, before it sources include/rpl_init.inc. After
+# that, $rpl_server_count must not change until after next time the
+# test sources include/rpl_end.inc.
+#
+# Note: Since this script issues CHANGE MASTER, the test case must
+# ensure that all slaves where the configuration changes have stopped
+# both the IO thread and the SQL thread before this script is sourced.
+#
+#
+# ==== Usage ====
+#
+# [--let $rpl_server_count= 7]
+# --let $rpl_topology= 1->2->3->1->4, 2->5, 6->7
+# [--let $rpl_skip_change_master= 1]
+# [--let $rpl_master_log_file= 1:master-bin.000001,3:master-bin.000003]
+# [--let $rpl_master_log_pos= 1:4711,3:107]
+# [--let $rpl_debug= 1]
+# --source include/rpl_change_topology.inc
+#
+# Parameters:
+#   $rpl_master_log_file
+#     By default, CHANGE MASTER is executed with MASTER_LOG_FILE set
+#     to the name of the last binlog file on the master (retrieved by
+#     executing SHOW MASTER STATUS). This variable can be set to
+#     specify another filename. This variable should be a
+#     comma-separated list of the following form:
+#
+#       SERVER_NUMBER_1:FILE_NAME_1,SERVER_NUMBER_2:FILE_NAME_2,...
+#
+#     Before CHANGE MASTER is executed on server N, this script checks
+#     if $rpl_master_log_file contains the text N:FILE_NAME. If it
+#     does, then MASTER_LOG_FILE is set to FILE_NAME. Otherwise,
+#     MASTER_LOG_FILE is set to the last binlog on the master. For
+#     example, to specify that server_1 should start replicate from
+#     master-bin.000007 and server_5 should start replicate from
+#     master-bin.012345, do:
+#       --let $rpl_master_log_file= 1:master-bin.000007,5:master-bin.012345
+#
+#   $rpl_master_log_pos
+#     By default, CHANGE MASTER is executed without specifying the
+#     MASTER_LOG_POS parameter. This variable can be set to set a
+#     specific position. It has the same form as $rpl_master_log_file
+#     (see above). For example, to specify that server_3 should start
+#     replicate from position 4711 of its master, do:
+#       --let $rpl_master_log_pos= 3:4711
+#
+#   $rpl_server_count, $rpl_topology, $rpl_debug, $rpl_skip_change_master
+#     See include/rpl_init.inc
+#
+#
+# ==== Internal variables configured by this file ====
+#
+# This file sets up the following variables, which are used by other
+# low-level replication files such as:
+#   include/rpl_sync.inc
+#   include/rpl_start_slaves.inc
+#   include/rpl_stop_slaves.inc
+#   include/rpl_end.inc
+#
+# $rpl_server_count_length
+#   Set to LENGTH($rpl_server_count). So if $rpl_server_count < 10,
+#   then $rpl_server_count_length = 1; if 10 <= $rpl_server_count <
+#   100, then $rpl_server_count_length = 2, etc.
+#
+# $rpl_master_list
+#   Set to a string consisting of $rpl_server_count numbers, each one
+#   whitespace-padded to $rpl_server_count_length characters. If
+#   server N is a slave, then the N'th number is the master of server
+#   N. If server N is not a slave, then the N'th number is just spaces
+#   (so in fact it is not a number). For example, if $rpl_topology is
+#   '1->2,2->3,3->1,2->4,5->6', then $rpl_master_list is '3122 5'.
+#
+# $rpl_sync_chain_dirty
+#   This variable is set to 1. This tells include/rpl_sync.inc to
+#   compute a new value for $rpl_sync_chain next time that
+#   include/rpl_sync.inc is sourced. See
+#   include/rpl_generate_sync_chain.inc and include/rpl_sync.inc for
+#   details.
+
+
+# Remove whitespace from $rpl_topology
+--let $rpl_topology= `SELECT REPLACE('$rpl_topology', ' ', '')`
+
+--let $include_filename= rpl_change_topology.inc [new topology=$rpl_topology]
+--source include/begin_include_file.inc
+
+
+if ($rpl_debug)
+{
+  --echo ---- Check input ----
+}
+
+
+if (`SELECT '$rpl_topology' = '' OR '$rpl_server_count' = ''`)
+{
+  --die You must set $rpl_topology and $rpl_server_count before you source rpl_change_topology.inc. If you really want to change to the empty topology, set $rpl_topology= none
+}
+--let $_rpl_topology= $rpl_topology
+if ($_rpl_topology == 'none')
+{
+  --let $_rpl_topology=
+}
+if ($rpl_master_list == '')
+{
+  --die You must source include/rpl_init.inc before you source include/rpl_change_topology.inc
+}
+--let $_rpl_old_master_list= $rpl_master_list
+
+if ($rpl_debug)
+{
+  --echo \$rpl_server_count='$rpl_server_count'
+  --echo old \$rpl_server_count_length='$rpl_server_count_length'
+  --echo new \$rpl_topology='$_rpl_topology'
+  --echo old \$rpl_master_list='$rpl_master_list'
+  --echo old \$rpl_sync_chain='$rpl_sync_chain'
+}
+
+
+if ($rpl_debug)
+{
+  --echo ---- Generate \$rpl_server_count_length and \$rpl_master_list ----
+}
+
+--let $rpl_server_count_length= `SELECT LENGTH('$rpl_server_count')`
+--let $rpl_master_list=
+--let $_rpl_no_server= `SELECT REPEAT(' ', $rpl_server_count_length)`
+--let $rpl_master_list= `SELECT REPEAT('$_rpl_no_server', $rpl_server_count)`
+while ($_rpl_topology)
+{
+  # Get 's1->s2' from 's1->s2->s3->...' or from 's1->s2,s3->s4,...'
+  --let $_rpl_master_slave= `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX('$_rpl_topology', ',', 1), '->', 2)`
+  # Modify $_rpl_topology as follows:
+  #  - If it starts with 's1->s2,', remove 's1->s2,'
+  #  - If it starts with 's1->s2->', remove 's1->'
+  #  - If it is equal to 's1->s2', remove 's1->s2'
+  --let $_rpl_topology= `SELECT SUBSTR('$_rpl_topology', IF(SUBSTR('$_rpl_topology', LENGTH('$_rpl_master_slave') + 1, 2) != '->', LENGTH('$_rpl_master_slave'), LOCATE('->', '$_rpl_master_slave')) + 2)`
+  # Get 's1' from 's1->s2'
+  --let $_rpl_master= `SELECT SUBSTRING_INDEX('$_rpl_master_slave', '->', 1)`
+  # Get 's2' from 's1->s2'
+  --let $_rpl_slave= `SELECT SUBSTRING('$_rpl_master_slave', LENGTH('$_rpl_master') + 3)`
+  # Check that s2 does not have another master.
+  if (`SELECT SUBSTR('$rpl_master_list', 1 + ($_rpl_slave - 1) * $rpl_server_count_length, $rpl_server_count_length) != '$_rpl_no_server'`)
+  {
+    --echo ERROR IN TEST: Server '$_rpl_slave' has more than one master in topology '$rpl_topology'
+    --die ERROR IN TEST: found a server with more than one master in the $rpl_topology variable
+  }
+  # Save 's1' at position 's2' in $rpl_master_list
+  --let $rpl_master_list= `SELECT INSERT('$rpl_master_list', 1 + ($_rpl_slave - 1) * $rpl_server_count_length, $rpl_server_count_length, RPAD('$_rpl_master', $rpl_server_count_length, ' '))`
+}
+
+if ($rpl_debug)
+{
+  --echo new \$rpl_server_count_length = '$rpl_server_count_length'
+  --echo new \$rpl_master_list = '$rpl_master_list'
+}
+
+if (!$rpl_skip_change_master)
+{
+  if ($rpl_debug)
+  {
+    --echo ---- Execute CHANGE MASTER on all servers ----
+  }
+
+  if (!$rpl_debug)
+  {
+    --disable_query_log
+  }
+
+  --let $_rpl_server= $rpl_server_count
+  while ($_rpl_server)
+  {
+    # The following statement evaluates to:
+    #  0, if server_$_rpl_server has the same master as before.
+    #  The master's server, if server_$_rpl_server is a slave.
+    #  The empty string, if server_$_rpl_server is not a slave.
+    --let $_rpl_master= `SELECT TRIM(IFNULL(NULLIF(SUBSTRING('$rpl_master_list', 1 + ($_rpl_server - 1) * $rpl_server_count_length, $rpl_server_count_length), SUBSTRING('$_rpl_old_master_list', 1 + ($_rpl_server - 1) * $rpl_server_count_length, $rpl_server_count_length)), 0))`
+    if ($rpl_debug)
+    {
+      --echo \$_rpl_server='$_rpl_server' \$_rpl_master='$_rpl_master'
+    }
+    if ($_rpl_master)
+    {
+      # Get port number
+      --let $_rpl_port= \$SERVER_MYPORT_$_rpl_master
+      # Get MASTER_LOG_FILE
+      --let $_rpl_master_log_file_index= `SELECT LOCATE('$_rpl_server:', '$rpl_master_log_file')`
+      if ($_rpl_master_log_file_index)
+      {
+        # Get text from after ':' and before ',', starting at
+        # $_rpl_master_log_file
+        --let $_rpl_master_log_file= `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(SUBSTRING('$rpl_master_log_file', $_rpl_master_log_file_index), ',', 1), ':', -1)`
+      }
+      if (!$_rpl_master_log_file_index)
+      {
+        --let $rpl_connection_name= server_$_rpl_master
+        --source include/rpl_connection.inc
+        --let $_rpl_master_log_file= query_get_value(SHOW MASTER STATUS, File, 1)
+        if ($rpl_debug)
+        {
+          --echo "\$rpl_master_log_file parameter not set for the master: $_rpl_master, use the latest binlog file by executing SHOW MASTER STATUS."
+        }
+      }
+      # Change connection.
+      --let $rpl_connection_name= server_$_rpl_server
+      --source include/rpl_connection.inc
+      # Get MASTER_LOG_POS
+      --let $_rpl_master_log_pos_index= `SELECT LOCATE('$_rpl_server:', '$rpl_master_log_pos')`
+      if ($_rpl_master_log_pos_index)
+      {
+        --let $_rpl_master_log_pos= `SELECT SUBSTRING_INDEX(SUBSTRING_INDEX(SUBSTRING('$rpl_master_log_pos', $_rpl_master_log_pos_index), ',', 1), ':', -1)`
+        --let $_rpl_master_log_pos= , MASTER_LOG_POS = $_rpl_master_log_pos
+      }
+      if (!$_rpl_master_log_pos_index)
+      {
+        --let $_rpl_master_log_pos=
+        if ($rpl_debug)
+        {
+          --echo "\$rpl_master_log_pos parameter not set for the master: $_rpl_master. Set log position to empty."
+        }
+      }
+      if ($rpl_master_log_file)
+      {
+        eval CHANGE MASTER TO MASTER_HOST = '127.0.0.1', MASTER_PORT = $_rpl_port, MASTER_USER = 'root', MASTER_LOG_FILE = '$_rpl_master_log_file'$_rpl_master_log_pos, MASTER_CONNECT_RETRY = 1, MASTER_USE_GTID=NO;
+      }
+      if (!$rpl_master_log_file)
+      {
+        eval CHANGE MASTER TO MASTER_HOST = '127.0.0.1', MASTER_PORT = $_rpl_port, MASTER_USER = 'root', MASTER_CONNECT_RETRY=1;
+      }
+    }
+    if ($_rpl_master == '')
+    {
+        # This un-configures the server so that it's not a slave.
+        # After BUG#28796, such configuration is not possible any more.
+        #--let $rpl_connection_name= server_$_rpl_server
+        #--source include/rpl_connection.inc
+        #CHANGE MASTER TO MASTER_HOST = '';
+    }
+    --dec $_rpl_server
+  }
+}
+
+
+--let $rpl_sync_chain_dirty= 1
+
+
+--let $include_filename= rpl_change_topology.inc
+--source include/end_include_file.inc