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Convert pt-table-checksum boundaries to SQL WHERE clauses.

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This commit is contained in:
Daniel Nichter
2011-12-22 15:43:15 -07:00
parent 1d8da408fc
commit b63bc4c26b
13 changed files with 206 additions and 98 deletions
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2
lib/Sandbox.pm
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@@ -41,6 +41,8 @@ my %port_for = (
slave2 => 12347,
master1 => 12348, # master-master
master2 => 12349, # master-master
master3 => 2900,
master4 => 2901,
);
sub new {

22
lib/TableChecksum.pm
View File

@@ -470,18 +470,16 @@ sub make_checksum_query {
sub find_replication_differences {
my ( $self, $dbh, $table ) = @_;
(my $sql = <<" EOF") =~ s/\s+/ /gm;
SELECT db, tbl, chunk, boundaries,
COALESCE(this_cnt-master_cnt, 0) AS cnt_diff,
COALESCE(
this_crc <> master_crc OR ISNULL(master_crc) <> ISNULL(this_crc),
0
) AS crc_diff,
this_cnt, master_cnt, this_crc, master_crc
FROM $table
WHERE master_cnt <> this_cnt OR master_crc <> this_crc
OR ISNULL(master_crc) <> ISNULL(this_crc)
EOF
my $sql
= "SELECT db, tbl, CONCAT(db, '.', tbl) AS `table`, "
. "chunk, chunk_index, lower_boundary, upper_boundary, "
. "COALESCE(this_cnt-master_cnt, 0) AS cnt_diff, "
. "COALESCE("
. "this_crc <> master_crc OR ISNULL(master_crc) <> ISNULL(this_crc), 0"
. ") AS crc_diff, this_cnt, master_cnt, this_crc, master_crc "
. "FROM $table "
. "WHERE master_cnt <> this_cnt OR master_crc <> this_crc "
. "OR ISNULL(master_crc) <> ISNULL(this_crc)";
MKDEBUG && _d($sql);
my $diffs = $dbh->selectall_arrayref($sql, { Slice => {} });