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Current File : /www/server/mysql/src/mysql-test/suite/rpl/t/rpl_gtid_purged_maintained.test
#Want to skip this test from daily Valgrind execution
--source include/no_valgrind_without_big.inc
# Adding big test option for this test.
--source include/big_test.inc
--source include/not_group_replication_plugin.inc
# ==== Purpose ====
#
# Test that @@GLOBAL.GTID_PURGED is maintained correctly when the server
# restarts and when logs are purged.
#
# @@GLOBAL.GTID_PURGED contains the GTIDs that were in binary logs that
# have been purged.  It is initialized at server start and updated
# each time logs are purged.
#
# Test that GTID_PURGED is:
# - updated when a log is purged
# - initialized when the server is started
# - initialized correctly even when the first binlog begins with a
#   truncated Previous_gtids_log_event
# - initialized correctly even when the first binlog is truncated
#   before the Previous_gtids_log_event
#
# ==== Implementation ====
#
# Make three big iterations:
#  - first, the server behaves normally and generates a Gtid_log_event
#  - second, the server generates a binlog that is truncated in the
#    middle of the Gtid_log_event
#  - third, the server generates a binlog that is truncated just before
#    the Gtid_log_event
#
# Each big iteration has two phases:
#  - In the first phase, we generate a sequence of binlogs.
#  - In the second phase, we purge the binlogs, one at a time, and
#    verify that GTID_PURGED is updated accordingly.
#
# In the first phase, we have three nested loops:
#  - The innermost loop generates a sequence of transactions.
#  - The middle loop executes FLUSH LOGS before and after invoking the
#    innermost loop.
#  - The outermost loop restarts the server after invoking the middle
#    loop.
#
# ==== References ====
#
# Added in WL#3584 - Global Transaction Identifiers

--let $rpl_gtid_utils= 1
--source include/master-slave.inc
--source include/have_gtid.inc
--source include/have_debug.inc

--echo ######## Initialize ########

--let $master_uuid= `SELECT @@SERVER_UUID`
CREATE TABLE t1 (a INT) ENGINE = InnoDB;
--source include/sync_slave_sql_with_master.inc

--let $corruption_mode_count= 2
--let $restart_count= 2
--let $flush_count= 2
--let $corruption_mode_flag_1= --debug=d,skip_writing_previous_gtids_log_event
--let $corruption_mode_flag_2=
# Does not work: --let $corruption_mode_flag_2= --debug=d,write_partial_previous_gtids_log_event

--let $corruption_mode= 1
while ($corruption_mode <= $corruption_mode_count)
{
  --echo ######## corruption_mode = $corruption_mode of $corruption_mode_count ########
  --echo Phase one: Generating logs

  --source include/rpl_reset.inc

  # Restart the server three times
  --let $restart_i= 1
  --let $gno= 0
  while ($restart_i <= $restart_count)
  {
    --echo ======== restart_i = $restart_i of $restart_count ========

    --connection slave
    --source include/stop_slave.inc

    --let $rpl_server_number= 1
    --let $rpl_start_with_gtids= 1
    --let $rpl_server_parameters= \$corruption_mode_flag_$corruption_mode
    --source include/rpl_restart_server.inc

    --let $rpl_server_parameters=
    --source include/rpl_restart_server.inc

    --source include/start_slave.inc
    --connection master

    # For each restart, flush the log three times
    --let $flush_i= 1
    while ($flush_i <= $flush_count)
    {
      --echo -------- flush_i = $flush_i of $flush_count --------
      FLUSH LOGS;
      --let $transaction_count= $flush_i
      --let $transaction_i= 1
      while ($transaction_i <= $transaction_count)
      {
        --inc $gno
        eval INSERT INTO t1 VALUES ($gno);
        --inc $transaction_i
      }
      FLUSH LOGS;

      --echo [on slave]
      --source include/sync_slave_sql_with_master.inc

      --let $assert_text= no gtids lost yet on slave
      --let $assert_cond= @@GTID_PURGED = ""
      --source include/assert.inc

      --let $assert_text= committed gno $gno on slave
      --let $assert_cond= GTID_IS_EQUAL(@@GLOBAL.GTID_EXECUTED, "$master_uuid:1-$gno")
      --source include/assert.inc

      --echo [on master]
      --connection master

      --let $assert_text= no gtids lost yet on master
      --let $assert_cond= @@GTID_PURGED = ""
      --source include/assert.inc

      --let $assert_text= committed gno $gno on master
      --let $assert_cond= GTID_IS_EQUAL(@@GLOBAL.GTID_EXECUTED, "$master_uuid:1-$gno")
      --source include/assert.inc

      --inc $flush_i
    }

    --inc $restart_i
  }
  FLUSH LOGS;

  --source include/sync_slave_sql_with_master.inc
  --connection master

  --echo ######## corruption_mode = $corruption_mode ########
  --echo Phase two: Purging logs
  --let $gno= 0

  # Purge one log at a time, in the same sequence that we created logs above.
  --let $restart_i= 1
  while ($restart_i <= $restart_count)
  {
    --echo ======== restart_i = $restart_i of $restart_count ========

    --source include/purge_first_log.inc
    --let $assert_text= lost gtids from 1 to $gno on master
    --let $assert_cond= GTID_IS_EQUAL(@@GTID_PURGED, "$master_uuid:1-$gno")
    --source include/assert.inc

    --source include/purge_first_log.inc
    --let $assert_text= lost gtids from 1 to $gno on master
    --let $assert_cond= GTID_IS_EQUAL(@@GTID_PURGED, "$master_uuid:1-$gno")
    --source include/assert.inc

    --let $flush_i= 1
    while ($flush_i <= $flush_count)
    {
      # Purge one log for each FLUSH LOGS above.
      --echo -------- flush_i = $flush_i of $flush_count --------
      --source include/purge_first_log.inc
      --let $assert_text= lost gtids from 1 to $gno on master
      --let $assert_cond= GTID_IS_EQUAL(@@GTID_PURGED, "$master_uuid:1-$gno")
      --source include/assert.inc

      # Increase $gno in the same manner as above.
      --let $transaction_count= $flush_i
      --let $transaction_i= 1
      while ($transaction_i <= $transaction_count)
      {
        --inc $gno
        --inc $transaction_i
      }

      --source include/purge_first_log.inc
      --let $assert_text= lost gtids from 1 to $gno on master
      --let $assert_cond= GTID_IS_EQUAL(@@GTID_PURGED, "$master_uuid:1-$gno")
      --source include/assert.inc

      --inc $flush_i
    }

    --inc $restart_i
  }

  --inc $corruption_mode
}

--echo ######## Clean up ########
--connection master
DROP TABLE t1;
--source include/rpl_end.inc

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