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Code Issues Releases Wiki Activity

Allow bin/storage adjust to make key changes

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Summary:
Ref T1191. These are a bit tricky because keys can interact with column changes, so basically we do three phases:

  1. Nuke all bad keys.
  2. Make all column (and database/table) changes.
  3. Fix all nuked keys.

Test Plan: Ran migration locally. See note for remaining issues.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1191

Differential Revision: https://secure.phabricator.com/D10599
This commit is contained in:
epriestley 2014-10-01 08:18:11 -07:00
parent 22ee8432d2
commit a5ce56aa76
1 changed files with 135 additions and 42 deletions
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177
src/infrastructure/storage/management/workflow/PhabricatorStorageManagementAdjustWorkflow.php
View file

@ -129,56 +129,99 @@ final class PhabricatorStorageManagementAdjustWorkflow
$failed = array();
// We make changes in three phases:
//
// Phase 0: Drop all keys which we're going to adjust. This prevents them
// from interfering with column changes.
//
// Phase 1: Apply all database, table, and column changes.
//
// Phase 2: Restore adjusted keys.
$phases = 3;
$bar = id(new PhutilConsoleProgressBar())
->setTotal(count($adjustments));
foreach ($adjustments as $adjust) {
try {
switch ($adjust['kind']) {
case 'database':
queryfx(
$conn,
'ALTER DATABASE %T CHARACTER SET = %s COLLATE = %s',
$adjust['database'],
$adjust['charset'],
$adjust['collation']);
break;
case 'table':
queryfx(
$conn,
'ALTER TABLE %T.%T COLLATE = %s',
$adjust['database'],
$adjust['table'],
$adjust['collation']);
break;
case 'column':
$parts = array();
if ($adjust['charset']) {
$parts[] = qsprintf(
->setTotal(count($adjustments) * $phases);
for ($phase = 0; $phase < $phases; $phase++) {
foreach ($adjustments as $adjust) {
try {
switch ($adjust['kind']) {
case 'database':
if ($phase != 1) {
break;
}
queryfx(
$conn,
'CHARACTER SET %Q COLLATE %Q',
'ALTER DATABASE %T CHARACTER SET = %s COLLATE = %s',
$adjust['database'],
$adjust['charset'],
$adjust['collation']);
}
break;
case 'table':
if ($phase != 1) {
break;
}
queryfx(
$conn,
'ALTER TABLE %T.%T COLLATE = %s',
$adjust['database'],
$adjust['table'],
$adjust['collation']);
break;
case 'column':
if ($phase != 1) {
break;
}
$parts = array();
if ($adjust['charset']) {
$parts[] = qsprintf(
$conn,
'CHARACTER SET %Q COLLATE %Q',
$adjust['charset'],
$adjust['collation']);
}
queryfx(
$conn,
'ALTER TABLE %T.%T MODIFY %T %Q %Q %Q',
$adjust['database'],
$adjust['table'],
$adjust['name'],
$adjust['type'],
implode(' ', $parts),
$adjust['nullable'] ? 'NULL' : 'NOT NULL');
queryfx(
$conn,
'ALTER TABLE %T.%T MODIFY %T %Q %Q %Q',
$adjust['database'],
$adjust['table'],
$adjust['name'],
$adjust['type'],
implode(' ', $parts),
$adjust['nullable'] ? 'NULL' : 'NOT NULL');
break;
default:
throw new Exception(
pht('Unknown schema adjustment kind "%s"!', $adjust['kind']));
break;
case 'key':
if (($phase == 0) && $adjust['exists']) {
queryfx(
$conn,
'ALTER TABLE %T.%T DROP KEY %T',
$adjust['database'],
$adjust['table'],
$adjust['name']);
}
if (($phase == 2) && $adjust['keep']) {
queryfx(
$conn,
'ALTER TABLE %T.%T ADD %Q KEY %T (%Q)',
$adjust['database'],
$adjust['table'],
$adjust['unique'] ? 'UNIQUE' : '/* NONUNIQUE */',
$adjust['name'],
implode(', ', $adjust['columns']));
}
break;
default:
throw new Exception(
pht('Unknown schema adjustment kind "%s"!', $adjust['kind']));
}
} catch (AphrontQueryException $ex) {
$failed[] = array($adjust, $ex);
}
} catch (AphrontQueryException $ex) {
$failed[] = array($adjust, $ex);
$bar->update(1);
}
$bar->update(1);
}
$bar->done();
@ -222,6 +265,11 @@ final class PhabricatorStorageManagementAdjustWorkflow
$issue_charset = PhabricatorConfigStorageSchema::ISSUE_CHARSET;
$issue_collation = PhabricatorConfigStorageSchema::ISSUE_COLLATION;
$issue_columntype = PhabricatorConfigStorageSchema::ISSUE_COLUMNTYPE;
$issue_surpluskey = PhabricatorConfigStorageSchema::ISSUE_SURPLUSKEY;
$issue_missingkey = PhabricatorConfigStorageSchema::ISSUE_MISSINGKEY;
$issue_columns = PhabricatorConfigStorageSchema::ISSUE_KEYCOLUMNS;
$issue_unique = PhabricatorConfigStorageSchema::ISSUE_UNIQUE;
$adjustments = array();
foreach ($comp->getDatabases() as $database_name => $database) {
@ -321,6 +369,51 @@ final class PhabricatorStorageManagementAdjustWorkflow
);
}
}
foreach ($table->getKeys() as $key_name => $key) {
$expect_key = $expect_table->getKey($key_name);
$actual_key = $actual_table->getKey($key_name);
$issues = array();
$keep_key = true;
if ($key->hasIssue($issue_surpluskey)) {
$issues[] = $issue_surpluskey;
$keep_key = false;
}
if ($key->hasIssue($issue_missingkey)) {
$issues[] = $issue_missingkey;
}
if ($key->hasIssue($issue_columns)) {
$issues[] = $issue_columns;
}
if ($key->hasIssue($issue_unique)) {
$issues[] = $issue_unique;
}
if ($issues) {
$adjustment = array(
'kind' => 'key',
'database' => $database_name,
'table' => $table_name,
'name' => $key_name,
'issues' => $issues,
'exists' => (bool)$actual_key,
'keep' => $keep_key,
);
if ($keep_key) {
$adjustment += array(
'columns' => $expect_key->getColumnNames(),
'unique' => $expect_key->getUnique(),
);
}
$adjustments[] = $adjustment;
}
}
}
}