[
https://issues.apache.org/jira/browse/PHOENIX-3534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16540256#comment-16540256
]
ASF GitHub Bot commented on PHOENIX-3534:
-----------------------------------------
Github user twdsilva commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/303#discussion_r201739480
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/coprocessor/MetaDataEndpointImpl.java
---
@@ -1809,180 +2256,97 @@ public void createTable(RpcController controller,
CreateTableRequest request,
} catch (Throwable t) {
logger.error("createTable failed", t);
ProtobufUtil.setControllerException(controller,
-
ServerUtil.createIOException(SchemaUtil.getTableName(schemaName, tableName),
t));
+ ServerUtil.createIOException(fullTableName, t));
}
}
+ private void dropChildMetadata(byte[] schemaName, byte[] tableName,
byte[] tenantIdBytes)
+ throws IOException, SQLException,
ClassNotFoundException {
+ TableViewFinderResult childViewsResult = new
TableViewFinderResult();
+ findAllChildViews(tenantIdBytes, schemaName, tableName,
childViewsResult);
+ if (childViewsResult.hasViews()) {
+ for (TableInfo viewInfo :
childViewsResult.getResults()) {
+ byte[] viewTenantId = viewInfo.getTenantId();
+ byte[] viewSchemaName =
viewInfo.getSchemaName();
+ byte[] viewName = viewInfo.getTableName();
+ Properties props = new Properties();
+ if (viewTenantId != null && viewTenantId.length
!= 0)
+
props.setProperty(PhoenixRuntime.TENANT_ID_ATTRIB,
Bytes.toString(viewTenantId));
+ try (PhoenixConnection connection =
QueryUtil.getConnectionOnServer(env.getConfiguration())
+
.unwrap(PhoenixConnection.class)) {
+ MetaDataClient client = new
MetaDataClient(connection);
+ org.apache.phoenix.parse.TableName
viewTableName = org.apache.phoenix.parse.TableName
+
.create(Bytes.toString(viewSchemaName), Bytes.toString(viewName));
+ client.dropTable(
+ new
DropTableStatement(viewTableName, PTableType.VIEW, false, true, true));
+ }
+ }
+ }
+ }
+
private boolean execeededIndexQuota(PTableType tableType, PTable
parentTable) {
return PTableType.INDEX == tableType &&
parentTable.getIndexes().size() >= maxIndexesPerTable;
}
-
- private void findAllChildViews(Region region, byte[] tenantId, PTable
table,
- TableViewFinder result, long clientTimeStamp, int
clientVersion) throws IOException, SQLException {
- TableViewFinder currResult = findChildViews(region, tenantId,
table, clientVersion, false);
- result.addResult(currResult);
- for (ViewInfo viewInfo : currResult.getViewInfoList()) {
- byte[] viewtenantId = viewInfo.getTenantId();
- byte[] viewSchema = viewInfo.getSchemaName();
- byte[] viewTable = viewInfo.getViewName();
- byte[] tableKey = SchemaUtil.getTableKey(viewtenantId,
viewSchema, viewTable);
- ImmutableBytesPtr cacheKey = new ImmutableBytesPtr(tableKey);
- PTable view = loadTable(env, tableKey, cacheKey,
clientTimeStamp, clientTimeStamp, clientVersion);
- if (view == null) {
- logger.warn("Found orphan tenant view row in
SYSTEM.CATALOG with tenantId:"
- + Bytes.toString(tenantId) + ", schema:"
- + Bytes.toString(viewSchema) + ", table:"
- + Bytes.toString(viewTable));
- continue;
- }
- findAllChildViews(region, viewtenantId, view, result,
clientTimeStamp, clientVersion);
- }
- }
-
- // TODO use child link instead once splittable system catalog
(PHOENIX-3534) is implemented
- // and we have a separate table for links.
- private TableViewFinder findChildViews_deprecated(Region region,
byte[] tenantId, PTable table, byte[] linkTypeBytes, boolean stopAfterFirst)
throws IOException {
- byte[] schemaName = table.getSchemaName().getBytes();
- byte[] tableName = table.getTableName().getBytes();
- boolean isMultiTenant = table.isMultiTenant();
- Scan scan = new Scan();
- // If the table is multi-tenant, we need to check across all
tenant_ids,
- // so we can't constrain the row key. Otherwise, any views would
have
- // the same tenantId.
- if (!isMultiTenant) {
- byte[] startRow = ByteUtil.concat(tenantId,
QueryConstants.SEPARATOR_BYTE_ARRAY);
- byte[] stopRow = ByteUtil.nextKey(startRow);
- scan.setStartRow(startRow);
- scan.setStopRow(stopRow);
- }
- SingleColumnValueFilter linkFilter = new
SingleColumnValueFilter(TABLE_FAMILY_BYTES, LINK_TYPE_BYTES, CompareOp.EQUAL,
linkTypeBytes);
- SingleColumnValueFilter tableTypeFilter = new
SingleColumnValueFilter(TABLE_FAMILY_BYTES, TABLE_TYPE_BYTES,
- CompareOp.EQUAL,
PTableType.VIEW.getSerializedValue().getBytes());
- tableTypeFilter.setFilterIfMissing(false);
- linkFilter.setFilterIfMissing(true);
- byte[] suffix =
ByteUtil.concat(QueryConstants.SEPARATOR_BYTE_ARRAY, SchemaUtil
- .getPhysicalHBaseTableName(schemaName, tableName,
table.isNamespaceMapped())
- .getBytes());
- SuffixFilter rowFilter = new SuffixFilter(suffix);
- List<Filter> filters =
Lists.<Filter>newArrayList(linkFilter,tableTypeFilter,rowFilter);
- if (stopAfterFirst) {
- filters.add(new PageFilter(1));
- }
- FilterList filter = new FilterList(filters);
- scan.setFilter(filter);
- scan.addColumn(TABLE_FAMILY_BYTES, LINK_TYPE_BYTES);
- scan.addColumn(TABLE_FAMILY_BYTES, TABLE_TYPE_BYTES);
- scan.addColumn(TABLE_FAMILY_BYTES, TABLE_SEQ_NUM_BYTES);
-
- // Original region-only scanner modified due to PHOENIX-1208
- // RegionScanner scanner = region.getScanner(scan);
- // The following *should* work, but doesn't due to HBASE-11837
- // TableName systemCatalogTableName =
region.getTableDesc().getTableName();
- // HTableInterface hTable = env.getTable(systemCatalogTableName);
- // These deprecated calls work around the issue
- try (HTableInterface hTable =
ServerUtil.getHTableForCoprocessorScan(env,
- region.getTableDesc().getTableName().getName())) {
- boolean allViewsInCurrentRegion = true;
- int numOfChildViews = 0;
- List<ViewInfo> viewInfoList = Lists.newArrayList();
- try (ResultScanner scanner = hTable.getScanner(scan)) {
- for (Result result = scanner.next(); (result != null);
result = scanner.next()) {
- numOfChildViews++;
- ImmutableBytesWritable ptr = new
ImmutableBytesWritable();
- ResultTuple resultTuple = new ResultTuple(result);
- resultTuple.getKey(ptr);
- byte[] key = ptr.copyBytes();
- if (checkTableKeyInRegion(key, region) != null) {
- allViewsInCurrentRegion = false;
- }
- byte[][] rowKeyMetaData = new byte[3][];
- getVarChars(result.getRow(), 3, rowKeyMetaData);
- byte[] viewTenantId =
rowKeyMetaData[PhoenixDatabaseMetaData.TENANT_ID_INDEX];
- byte[] viewSchemaName =
rowKeyMetaData[PhoenixDatabaseMetaData.SCHEMA_NAME_INDEX];
- byte[] viewName =
rowKeyMetaData[PhoenixDatabaseMetaData.TABLE_NAME_INDEX];
- viewInfoList.add(new ViewInfo(viewTenantId,
viewSchemaName, viewName));
- }
- TableViewFinder tableViewFinderResult = new
TableViewFinder(viewInfoList);
- if (numOfChildViews > 0 && !allViewsInCurrentRegion) {
- tableViewFinderResult.setAllViewsNotInSingleRegion();
- }
- return tableViewFinderResult;
+
+ private void findAncestorViewsOfIndex(byte[] tenantId, byte[]
schemaName, byte[] indexName,
+ TableViewFinderResult result, boolean isNamespaceMapped)
throws IOException {
+ try (Table hTable =
+ env.getTable(SchemaUtil.getPhysicalTableName(
+ PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES,
env.getConfiguration()))) {
+ TableViewFinderResult currentResult =
+ ViewFinder.findParentViewofIndex(hTable, tenantId,
schemaName, indexName);
+ if (currentResult.getResults().size() == 1) {
+ result.addResult(currentResult);
+ TableInfo tableInfo = currentResult.getResults().get(0);
+ findAncestorViews(tableInfo.getTenantId(),
tableInfo.getSchemaName(),
+ tableInfo.getTableName(), result, isNamespaceMapped);
}
+ // else this is an index on a regular table and so we don't
need to combine columns
}
}
- private TableViewFinder findChildViews_4_11(Region region, byte[]
tenantId, byte[] schemaName, byte[] tableName, boolean stopAfterFirst) throws
IOException {
- Scan scan = new Scan();
- byte[] startRow = SchemaUtil.getTableKey(tenantId, schemaName,
tableName);
- byte[] stopRow = ByteUtil.nextKey(startRow);
- scan.setStartRow(startRow);
- scan.setStopRow(stopRow);
- SingleColumnValueFilter linkFilter = new
SingleColumnValueFilter(TABLE_FAMILY_BYTES, LINK_TYPE_BYTES, CompareOp.EQUAL,
CHILD_TABLE_BYTES);
- Filter filter = linkFilter;
- linkFilter.setFilterIfMissing(true);
- if (stopAfterFirst) {
- filter = new FilterList(linkFilter, new PageFilter(1));
- }
- scan.setFilter(filter);
- scan.addColumn(TABLE_FAMILY_BYTES, LINK_TYPE_BYTES);
- scan.addColumn(TABLE_FAMILY_BYTES, PARENT_TENANT_ID_BYTES);
-
- // Original region-only scanner modified due to PHOENIX-1208
- // RegionScanner scanner = region.getScanner(scan);
- // The following *should* work, but doesn't due to HBASE-11837
- // TableName systemCatalogTableName =
region.getTableDesc().getTableName();
- // HTableInterface hTable = env.getTable(systemCatalogTableName);
- // These deprecated calls work around the issue
- try (HTableInterface hTable =
ServerUtil.getHTableForCoprocessorScan(env,
- region.getTableDesc().getTableName().getName())) {
- boolean allViewsInCurrentRegion = true;
- int numOfChildViews = 0;
- List<ViewInfo> viewInfoList = Lists.newArrayList();
- try (ResultScanner scanner = hTable.getScanner(scan)) {
- for (Result result = scanner.next(); (result != null);
result = scanner.next()) {
- numOfChildViews++;
- ImmutableBytesWritable ptr = new
ImmutableBytesWritable();
- ResultTuple resultTuple = new ResultTuple(result);
- resultTuple.getKey(ptr);
- byte[] key = ptr.copyBytes();
- if (checkTableKeyInRegion(key, region) != null) {
- allViewsInCurrentRegion = false;
- }
- byte[][] rowViewKeyMetaData = new byte[5][];
- getVarChars(result.getRow(), 5, rowViewKeyMetaData);
- byte[] viewTenantId =
rowViewKeyMetaData[PhoenixDatabaseMetaData.COLUMN_NAME_INDEX];
- byte[] viewSchemaName =
SchemaUtil.getSchemaNameFromFullName(rowViewKeyMetaData[PhoenixDatabaseMetaData.FAMILY_NAME_INDEX]).getBytes();
- byte[] viewName =
SchemaUtil.getTableNameFromFullName(rowViewKeyMetaData[PhoenixDatabaseMetaData.FAMILY_NAME_INDEX]).getBytes();
- viewInfoList.add(new ViewInfo(viewTenantId,
viewSchemaName, viewName));
- }
- TableViewFinder tableViewFinderResult = new
TableViewFinder(viewInfoList);
- if (numOfChildViews > 0 && !allViewsInCurrentRegion) {
- tableViewFinderResult.setAllViewsNotInSingleRegion();
- }
- return tableViewFinderResult;
+ private void findAncestorViews(byte[] tenantId, byte[] schemaName,
byte[] tableName,
+ TableViewFinderResult result, boolean isNamespaceMapped)
throws IOException {
+ try (Table hTable =
+ env.getTable(SchemaUtil.getPhysicalTableName(
+ PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME_BYTES,
env.getConfiguration()))) {
+ ViewFinder.findAllRelatives(hTable, tenantId, schemaName,
tableName,
+ LinkType.PARENT_TABLE, result);
+ if (!isNamespaceMapped || schemaName.length==0) {
+ // the child->parent link is overwritten by the
child->physical table link for first
+ // level children of base table when namespace mapping is
disabled or if the parent
+ // table doesn't have a schema as both the parent table
name and physical table name
+ // are the same.
+ // When namespace mapping is enabled the physical table
name is of the form S:T
+ // while the table name is of the form S.T so we need to
query for the
+ // PHYSICAL_TABLE link
--- End diff --
We are only rewriting the PARENT->CHILD links (removing them from
SYSTEM.CATALOG and recreating them in the new SYSTEM.CHILD_LINK table). The
PHYSICAL_TABLE link overwriting the PARENT_TABLE link happens in the
CHILD->PARENT links.
> Support multi region SYSTEM.CATALOG table
> -----------------------------------------
>
> Key: PHOENIX-3534
> URL: https://issues.apache.org/jira/browse/PHOENIX-3534
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Assignee: Thomas D'Silva
> Priority: Major
> Fix For: 5.0.0, 4.15.0
>
> Attachments: PHOENIX-3534.patch
>
>
> Currently Phoenix requires that the SYSTEM.CATALOG table is single region
> based on the server-side row locks being held for operations that impact a
> table and all of it's views. For example, adding/removing a column from a
> base table pushes this change to all views.
> As an alternative to making the SYSTEM.CATALOG transactional (PHOENIX-2431),
> when a new table is created we can do a lazy cleanup of any rows that may be
> left over from a failed DDL call (kudos to [~lhofhansl] for coming up with
> this idea). To implement this efficiently, we'd need to also do PHOENIX-2051
> so that we can efficiently find derived views.
> The implementation would rely on an optimistic concurrency model based on
> checking our sequence numbers for each table/view before/after updating. Each
> table/view row would be individually locked for their change (metadata for a
> view or table cannot span regions due to our split policy), with the sequence
> number being incremented under lock and then returned to the client.
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