ctdb/tests/simple/76_ctdb_pdb_recovery.sh

   1 #!/bin/bash
   2
   3 test_info()
   4 {
   5     cat <<EOF
   6 The recovery process based on RSN for persistent databases is defective.
   7 For persistent databases sequence number based recovery method should be
   8 used. This test checks for the defect in the RSN based recovery method
   9 for persistent databases and confirms that the same issue is not observed
  10 when using sequence number based recovery method.
  11
  12 Steps:
  13
  14 1. Create a persistent database
  15 2. Add a record and update it few times.
  16 3. Delete the record
  17 4. Turn off one of the nodes
  18 5. Add a record with same key.
  19 6. Turn on the stopped node
  20
  21 Expected results:
  22
  23 * Check that the record is deleted (RSN based recovery) and record is
  24   present (sequence number based recovery)
  25
  26 EOF
  27 }
  28
  29 . "${TEST_SCRIPTS_DIR}/integration.bash"
  30
  31 ctdb_test_init "$@"
  32
  33 set -e
  34
  35 cluster_is_healthy
  36
  37 # Reset configuration
  38 ctdb_restart_when_done
  39
  40 do_test()
  41 {
  42 # Wipe Test database
  43 echo "wipe test database"
  44 try_command_on_node 0 $CTDB wipedb $TESTDB
  45
  46 # Add a record   key=test1 data=value1
  47 # and update values
  48 for value in value1 value2 value3 value4 value5 ; do
  49         echo "store key(test1) data($value)"
  50         try_command_on_node 0 "(echo -ne $value > /tmp/test_data)"
  51         try_command_on_node 0 $CTDB pstore $TESTDB test1 /tmp/test_data
  52 done
  53
  54 # Delete record
  55 echo "delete key(test1)"
  56 try_command_on_node 0 $CTDB pdelete $TESTDB test1
  57
  58 # Stop a node
  59 echo "stop node 1"
  60 try_command_on_node 1 $CTDB stop
  61
  62 wait_until_node_has_status 1 stopped
  63
  64 # Add a record   key=test1 data=value2
  65 echo "store key(test1) data(newvalue1)"
  66 try_command_on_node 0 "(echo -ne newvalue1 > /tmp/test_data)"
  67 try_command_on_node 0 $CTDB pstore $TESTDB test1 /tmp/test_data
  68
  69 # Continue node
  70 echo "contine node 1"
  71 try_command_on_node 1 $CTDB continue
  72
  73 wait_until_node_has_status 1 notstopped
  74
  75 }
  76
  77 #
  78 # Main test
  79 #
  80 TESTDB="persistent_test.tdb"
  81
  82 status=0
  83
  84 # Create a temporary persistent database to test with
  85 echo "create persistent test database $TESTDB"
  86 try_command_on_node 0 $CTDB attach $TESTDB persistent
  87
  88 echo "set RecoverPDBBySeqNum to 0"
  89 try_command_on_node all $CTDB setvar RecoverPDBBySeqNum 0
  90
  91 do_test
  92 if try_command_on_node 0 $CTDB pfetch $TESTDB test1 ; then
  93         echo "GOOD: Record was not deleted (recovery by RSN worked)"
  94 else
  95         echo "BAD: Record was deleted"
  96         status=1
  97 fi
  98
  99 # Set RecoverPDBBySeqNum = 1
 100 echo "set RecoverPDBBySeqNum to 1"
 101 try_command_on_node all $CTDB setvar RecoverPDBBySeqNum 1
 102
 103 do_test
 104 if try_command_on_node 0 $CTDB pfetch $TESTDB test1 ; then
 105         echo "GOOD: Record was not deleted (recovery by sequence number worked)"
 106 else
 107         echo "BAD: Record was deleted"
 108         status=1
 109 fi
 110
 111 exit $status