@Override
public void renamePartition(
String db, String tableName, List<String> partitionValues, Partition partition)
throws HiveMetastoreException {
HiveObjectSpec tableSpec = new HiveObjectSpec(db, tableName);
Table table = specToTable.get(tableSpec);
String renameFromPartitionName = getPartitionName(table, partitionValues);
String renameToPartitionName = getPartitionName(table, partition.getValues());
HiveObjectSpec renameFromSpec = new HiveObjectSpec(db, tableName, renameFromPartitionName);
HiveObjectSpec renameToSpec = new HiveObjectSpec(db, tableName, renameToPartitionName);
if (specToPartition.containsKey(renameToSpec)) {
throw new HiveMetastoreException("Partition already exists: " + renameToSpec);
}
if (!specToPartition.containsKey(renameFromSpec)) {
throw new HiveMetastoreException("Partition doesn't exist: " + renameFromPartitionName);
}
Partition removed = specToPartition.remove(renameFromSpec);
removed.setValues(new ArrayList<>(partition.getValues()));
specToPartition.put(renameToSpec, removed);
}
public static Partition fromMetastoreApiPartition(
org.apache.hadoop.hive.metastore.api.Partition partition) {
StorageDescriptor storageDescriptor = partition.getSd();
if (storageDescriptor == null) {
throw new PrestoException(
HIVE_INVALID_METADATA, "Partition does not contain a storage descriptor: " + partition);
}
Partition.Builder partitionBuilder =
Partition.builder()
.setDatabaseName(partition.getDbName())
.setTableName(partition.getTableName())
.setValues(partition.getValues())
.setColumns(
storageDescriptor
.getCols()
.stream()
.map(MetastoreUtil::fromMetastoreApiFieldSchema)
.collect(toList()))
.setParameters(partition.getParameters());
fromMetastoreApiStorageDescriptor(
storageDescriptor,
partitionBuilder.getStorageBuilder(),
format("%s.%s", partition.getTableName(), partition.getValues()));
return partitionBuilder.build();
}
public static void dropAllStoreObjects(RawStore store)
throws MetaException, InvalidObjectException, InvalidInputException {
try {
Deadline.registerIfNot(100000);
List<Function> funcs = store.getAllFunctions();
for (Function func : funcs) {
store.dropFunction(func.getDbName(), func.getFunctionName());
}
List<String> dbs = store.getAllDatabases();
for (int i = 0; i < dbs.size(); i++) {
String db = dbs.get(i);
List<String> tbls = store.getAllTables(db);
for (String tbl : tbls) {
Deadline.startTimer("getPartition");
List<Partition> parts = store.getPartitions(db, tbl, 100);
for (Partition part : parts) {
store.dropPartition(db, tbl, part.getValues());
}
store.dropTable(db, tbl);
}
store.dropDatabase(db);
}
List<String> roles = store.listRoleNames();
for (String role : roles) {
store.removeRole(role);
}
} catch (NoSuchObjectException e) {
}
}
static Map<String, String> createPtnKeyValueMap(Table table, Partition ptn) throws IOException {
List<String> values = ptn.getValues();
if (values.size() != table.getPartitionKeys().size()) {
throw new IOException(
"Partition values in partition inconsistent with table definition, table "
+ table.getTableName()
+ " has "
+ table.getPartitionKeys().size()
+ " partition keys, partition has "
+ values.size()
+ "partition values");
}
Map<String, String> ptnKeyValues = new HashMap<String, String>();
int i = 0;
for (FieldSchema schema : table.getPartitionKeys()) {
// CONCERN : the way this mapping goes, the order *needs* to be
// preserved for table.getPartitionKeys() and ptn.getValues()
ptnKeyValues.put(schema.getName().toLowerCase(), values.get(i));
i++;
}
return ptnKeyValues;
}
@Override
public Integer run() throws Exception {
if (jobContext.getCoreExitCode() != 0) {
log("Job 运行失败，不进行产出目录清理");
return 0;
}
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd");
Calendar cal = Calendar.getInstance();
cal.add(Calendar.DAY_OF_YEAR, keepDays * (-1));
Date limit = format.parse(format.format(cal.getTime()));
for (String tableName : tables) {
Table t = tableManager.getTable(tableName);
int ptIndex = -1;
for (FieldSchema fs : t.getPartitionKeys()) {
ptIndex++;
if (fs.getName().equalsIgnoreCase("pt")) {
break;
}
}
if (ptIndex < 0) {
log("表" + tableName + "不含pt分区字段，不进行历史分区清理");
continue;
}
List<Partition> parts = tableManager.getPartitions(tableName, null);
for (Partition p : parts) {
Date ptDate = null;
try {
ptDate = format.parse(StringUtils.substring(p.getValues().get(ptIndex), 0, 8));
} catch (Exception e) {
log("分区字段格式非法：");
log(e);
}
if (ptDate == null) {
log("解析分区时间失败。" + p.getValues().get(ptIndex));
continue;
}
if (ptDate.before(limit)) {
if (!tableManager.dropPartition(tableName, p.getValues(), true)) {
log("drop partition failed.table[" + tableName + "],part_vals=[" + p.getValues());
} else {
log("drop partition ok. Table[" + tableName + "],part_vals=[" + p.getValues() + "]");
}
}
}
}
return 0;
}
private Map<HivePartitionName, Optional<Partition>> loadPartitionsByNames(
Iterable<? extends HivePartitionName> partitionNames) throws Exception {
requireNonNull(partitionNames, "partitionNames is null");
checkArgument(!Iterables.isEmpty(partitionNames), "partitionNames is empty");
HivePartitionName firstPartition = Iterables.get(partitionNames, 0);
HiveTableName hiveTableName = firstPartition.getHiveTableName();
String databaseName = hiveTableName.getDatabaseName();
String tableName = hiveTableName.getTableName();
List<String> partitionsToFetch = new ArrayList<>();
for (HivePartitionName partitionName : partitionNames) {
checkArgument(
partitionName.getHiveTableName().equals(hiveTableName),
"Expected table name %s but got %s",
hiveTableName,
partitionName.getHiveTableName());
partitionsToFetch.add(partitionName.getPartitionName());
}
List<String> partitionColumnNames =
ImmutableList.copyOf(
Warehouse.makeSpecFromName(firstPartition.getPartitionName()).keySet());
try {
return retry()
.stopOn(NoSuchObjectException.class)
.stopOnIllegalExceptions()
.run(
"getPartitionsByNames",
stats
.getGetPartitionsByNames()
.wrap(
() -> {
try (HiveMetastoreClient client = clientProvider.createMetastoreClient()) {
ImmutableMap.Builder<HivePartitionName, Optional<Partition>> partitions =
ImmutableMap.builder();
for (Partition partition :
client.getPartitionsByNames(
databaseName, tableName, partitionsToFetch)) {
String partitionId =
FileUtils.makePartName(
partitionColumnNames, partition.getValues(), null);
partitions.put(
HivePartitionName.partition(databaseName, tableName, partitionId),
Optional.of(partition));
}
return partitions.build();
}
}));
} catch (NoSuchObjectException e) {
// assume none of the partitions in the batch are available
return stream(partitionNames.spliterator(), false)
.collect(toMap(identity(), (name) -> Optional.empty()));
} catch (TException e) {
throw new PrestoException(HIVE_METASTORE_ERROR, e);
}
}
@Override
public void dropPartition(String databaseName, String tableName, List<String> parts) {
for (Entry<PartitionName, Partition> entry : partitions.entrySet()) {
PartitionName partitionName = entry.getKey();
Partition partition = entry.getValue();
if (partitionName.matches(databaseName, tableName) && partition.getValues().equals(parts)) {
partitions.remove(partitionName);
}
}
}
/**
* Returns the partition name (e.g. ds=1/hr=2) given a Table and Partition object. For simplicity,
* this does not handle special characters properly.
*
* @param table the table that the partition belongs to
* @param partition the partition to get the name for
* @return the name of the partition
* @throws HiveMetastoreException if the schema between the table and partition do not match
*/
private String getPartitionName(Table table, Partition partition) throws HiveMetastoreException {
if (table.getPartitionKeys().size() != partition.getValues().size()) {
throw new HiveMetastoreException(
"Partition column mismatch: "
+ "table has "
+ table.getPartitionKeys().size()
+ " columns "
+ "while partition has "
+ partition.getValues().size()
+ " values");
}
List<String> keyValues = new ArrayList<>();
int keyValueIndex = 0;
for (FieldSchema field : table.getPartitionKeys()) {
keyValues.add(field.getName() + "=" + partition.getValues().get(keyValueIndex));
keyValueIndex++;
}
return StringUtils.join(keyValues, "/");
}
private void validateAlterPartition(
Partition expectedOldPartition,
Partition expectedNewPartition,
String actualOldPartitionDbName,
String actualOldPartitionTblName,
List<String> actualOldPartitionValues,
Partition actualNewPartition) {
assertEquals(expectedOldPartition.getValues(), actualOldPartitionValues);
assertEquals(expectedOldPartition.getDbName(), actualOldPartitionDbName);
assertEquals(expectedOldPartition.getTableName(), actualOldPartitionTblName);
validatePartition(expectedNewPartition, actualNewPartition);
}
@Override
public CatalogProtos.PartitionDescProto getPartition(
String databaseName, String tableName, String partitionName) throws CatalogException {
HiveCatalogStoreClientPool.HiveCatalogStoreClient client = null;
CatalogProtos.PartitionDescProto.Builder builder = null;
try {
client = clientPool.getClient();
Partition partition =
client.getHiveClient().getPartition(databaseName, tableName, partitionName);
builder = CatalogProtos.PartitionDescProto.newBuilder();
builder.setPartitionName(partitionName);
builder.setPath(partition.getSd().getLocation());
String[] partitionNames = partitionName.split("/");
for (int i = 0; i < partition.getValues().size(); i++) {
String value = partition.getValues().get(i);
CatalogProtos.PartitionKeyProto.Builder keyBuilder =
CatalogProtos.PartitionKeyProto.newBuilder();
String columnName = partitionNames[i].split("=")[0];
keyBuilder.setColumnName(columnName);
keyBuilder.setPartitionValue(value);
builder.addPartitionKeys(keyBuilder);
}
} catch (NoSuchObjectException e) {
return null;
} catch (Exception e) {
throw new TajoInternalError(e);
} finally {
if (client != null) {
client.release();
}
}
return builder.build();
}
private static boolean partitionMatches(
Partition partition, String databaseName, String tableName, List<String> parts) {
if (!partition.getDbName().equals(databaseName)
|| !partition.getTableName().equals(tableName)) {
return false;
}
List<String> values = partition.getValues();
if (values.size() != parts.size()) {
return false;
}
for (int i = 0; i < values.size(); i++) {
String part = parts.get(i);
if (!part.isEmpty() && !values.get(i).equals(part)) {
return false;
}
}
return true;
}
private static String createPartitionName(Partition partition, Table table) {
return makePartName(table.getPartitionKeys(), partition.getValues());
}
/**
* Create HdfsPartition objects corresponding to 'partitions'.
*
* <p>If there are no partitions in the Hive metadata, a single partition is added with no
* partition keys.
*
* <p>For files that have not been changed, reuses file descriptors from oldFileDescMap.
*/
private void loadPartitions(
List<org.apache.hadoop.hive.metastore.api.Partition> msPartitions,
org.apache.hadoop.hive.metastore.api.Table msTbl,
Map<String, FileDescriptor> oldFileDescMap)
throws IOException, CatalogException {
partitions_.clear();
hdfsBaseDir_ = msTbl.getSd().getLocation();
List<FileDescriptor> newFileDescs = Lists.newArrayList();
// INSERT statements need to refer to this if they try to write to new partitions
// Scans don't refer to this because by definition all partitions they refer to
// exist.
addDefaultPartition(msTbl.getSd());
if (msTbl.getPartitionKeysSize() == 0) {
Preconditions.checkArgument(msPartitions == null || msPartitions.isEmpty());
// This table has no partition key, which means it has no declared partitions.
// We model partitions slightly differently to Hive - every file must exist in a
// partition, so add a single partition with no keys which will get all the
// files in the table's root directory.
addPartition(msTbl.getSd(), null, new ArrayList<LiteralExpr>(), oldFileDescMap, newFileDescs);
Path location = new Path(hdfsBaseDir_);
if (DFS.exists(location)) {
accessLevel_ = getAvailableAccessLevel(location);
}
} else {
// keep track of distinct partition key values and how many nulls there are
Set<String>[] uniquePartitionKeys = new HashSet[numClusteringCols_];
long[] numNullKeys = new long[numClusteringCols_];
for (int i = 0; i < numClusteringCols_; ++i) {
uniquePartitionKeys[i] = new HashSet<String>();
numNullKeys[i] = 0;
}
for (org.apache.hadoop.hive.metastore.api.Partition msPartition : msPartitions) {
// load key values
List<LiteralExpr> keyValues = Lists.newArrayList();
int i = 0;
for (String partitionKey : msPartition.getValues()) {
uniquePartitionKeys[i].add(partitionKey);
// Deal with Hive's special NULL partition key.
if (partitionKey.equals(nullPartitionKeyValue_)) {
keyValues.add(new NullLiteral());
++numNullKeys[i];
} else {
ColumnType type = colsByPos_.get(keyValues.size()).getType();
try {
Expr expr = LiteralExpr.create(partitionKey, type);
// Force the literal to be of type declared in the metadata.
expr = expr.castTo(type);
keyValues.add((LiteralExpr) expr);
} catch (AnalysisException ex) {
LOG.warn("Failed to create literal expression of type: " + type, ex);
throw new InvalidStorageDescriptorException(ex);
}
}
++i;
}
HdfsPartition partition =
addPartition(msPartition.getSd(), msPartition, keyValues, oldFileDescMap, newFileDescs);
// If the partition is null, its HDFS path does not exist, and it was not added to
// this table's partition list. Skip the partition.
if (partition == null) continue;
if (msPartition.getParameters() != null) {
partition.setNumRows(getRowCount(msPartition.getParameters()));
}
if (!TAccessLevelUtil.impliesWriteAccess(partition.getAccessLevel())) {
// TODO: READ_ONLY isn't exactly correct because the it's possible the
// partition does not have READ permissions either. When we start checking
// whether we can READ from a table, this should be updated to set the
// table's access level to the "lowest" effective level across all
// partitions. That is, if one partition has READ_ONLY and another has
// WRITE_ONLY the table's access level should be NONE.
accessLevel_ = TAccessLevel.READ_ONLY;
}
}
// update col stats for partition key cols
for (int i = 0; i < numClusteringCols_; ++i) {
ColumnStats stats = colsByPos_.get(i).getStats();
stats.setNumNulls(numNullKeys[i]);
stats.setNumDistinctValues(uniquePartitionKeys[i].size());
LOG.debug("#col=" + Integer.toString(i) + " stats=" + stats.toString());
}
}
if (newFileDescs.size() > 0) {
loadBlockMd(newFileDescs);
}
uniqueHostPortsCount_ = countUniqueDataNetworkLocations(partitions_);
}
private void validatePartition(Partition expectedPartition, Partition actualPartition) {
assertEquals(expectedPartition.getValues(), actualPartition.getValues());
assertEquals(expectedPartition.getDbName(), actualPartition.getDbName());
assertEquals(expectedPartition.getTableName(), actualPartition.getTableName());
}
public void run(
SessionState sess,
Set<ReadEntity> inputs,
Set<WriteEntity> outputs,
LineageInfo linfo,
UserGroupInformation ugi)
throws Exception {
LogHelper console = SessionState.getConsole();
if (console == null) {
return;
}
if (sess != null) {
console.printError("POSTHOOK: query: " + sess.getCmd().trim());
console.printError("POSTHOOK: type: " + sess.getCommandType());
}
PreExecutePrinter.printEntities(console, inputs, "POSTHOOK: Input: ");
PreExecutePrinter.printEntities(console, outputs, "POSTHOOK: Output: ");
// Also print out the generic lineage information if there is any
if (linfo != null) {
LinkedList<Map.Entry<DependencyKey, Dependency>> entry_list =
new LinkedList<Map.Entry<DependencyKey, Dependency>>(linfo.entrySet());
Collections.sort(entry_list, new DependencyKeyComp());
Iterator<Map.Entry<DependencyKey, Dependency>> iter = entry_list.iterator();
while (iter.hasNext()) {
Map.Entry<DependencyKey, Dependency> it = iter.next();
Dependency dep = it.getValue();
DependencyKey depK = it.getKey();
if (dep == null) {
continue;
}
StringBuilder sb = new StringBuilder();
sb.append("POSTHOOK: Lineage: ");
if (depK.getDataContainer().isPartition()) {
Partition part = depK.getDataContainer().getPartition();
sb.append(part.getTableName());
sb.append(" PARTITION(");
int i = 0;
for (FieldSchema fs : depK.getDataContainer().getTable().getPartitionKeys()) {
if (i != 0) {
sb.append(",");
}
sb.append(fs.getName() + "=" + part.getValues().get(i++));
}
sb.append(")");
} else {
sb.append(depK.getDataContainer().getTable().getTableName());
}
sb.append("." + depK.getFieldSchema().getName() + " " + dep.getType() + " ");
sb.append("[");
for (BaseColumnInfo col : dep.getBaseCols()) {
sb.append(
"("
+ col.getTabAlias().getTable().getTableName()
+ ")"
+ col.getTabAlias().getAlias()
+ "."
+ col.getColumn()
+ ", ");
}
sb.append("]");
console.printError(sb.toString());
}
}
}