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Resume from last finished checksum (where master_crc is not null). Use ? for resume queries instead of string literals. Add back '(disables L<"--[no]empty-replicate-table)" to --resume docu.

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This commit is contained in:
Daniel Nichter
2011-11-07 11:25:11 -07:00
parent a807f56ab5
commit f45003731c
2 changed files with 129 additions and 9 deletions
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22
bin/pt-table-checksum
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@@ -6858,7 +6858,7 @@ sub last_chunk {
}
my ($dbh, $repl_table, $q) = @args{@required_args};
my $sql = "SELECT MAX(ts) FROM $repl_table";
my $sql = "SELECT MAX(ts) FROM $repl_table WHERE master_crc IS NOT NULL";
MKDEBUG && _d($sql);
my ($max_ts) = $dbh->selectrow_array($sql);
if ( !$max_ts ) {
@@ -6867,16 +6867,22 @@ sub last_chunk {
}
$sql = "SELECT * FROM $repl_table "
. "WHERE ts='$max_ts' "
. "WHERE ts<=? "
. "ORDER BY db DESC, tbl DESC, chunk DESC LIMIT 1";
MKDEBUG && _d($sql);
my $last_chunk = $dbh->selectrow_hashref($sql);
my $sth = $dbh->prepare($sql);
$sth->execute($max_ts);
my $last_chunk = $sth->fetchrow_hashref();
$sth->finish();
MKDEBUG && _d('Last chunk:', Dumper($last_chunk));
$sql = "SELECT MAX(chunk) FROM $repl_table "
. "WHERE db='$last_chunk->{db}' AND tbl='$last_chunk->{tbl}'";
. "WHERE db=? AND tbl=? AND master_crc IS NOT NULL";
MKDEBUG && _d($sql);
my ($max_chunk) = $dbh->selectrow_array($sql);
$sth = $dbh->prepare($sql);
$sth->execute($last_chunk->{db}, $last_chunk->{tbl});
my ($max_chunk) = $sth->fetchrow_array();
$sth->finish();
MKDEBUG && _d('Max chunk:', $max_chunk);
if ( ($last_chunk->{chunk} || 0) ne ($max_chunk || 0) ) {
warn ts("Not resuming from max chunk ("
@@ -7695,9 +7701,9 @@ pt-table-checksum selects with USE, and never changes afterwards. See also
=item --resume
Resume checksumming from the last completed chunk. If the tool is stopped
before it finishes checksumming all tables, checksumming can resume from the
last chunk of the last table finished by specifying this option.
Resume checksumming from the last completed chunk (disables L<"--[no]empty-replicate-table). If the tool is stopped before it finishes checksumming all
tables, checksumming can resume from the last chunk of the last table
finished by specifying this option.
=item --retries