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CavalliumDBEngine
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Add readable rocksdb stats

This commit is contained in:
Andrea Cavalli 2022-05-04 01:21:56 +02:00
parent 549a3bd178
commit a1c0e19adc
11 changed files with 516 additions and 84 deletions
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3
src/main/java/it/cavallium/dbengine/client/CompositeDatabase.java
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@ -2,10 +2,11 @@ package it.cavallium.dbengine.client;
import io.micrometer.core.instrument.MeterRegistry;
import io.netty5.buffer.api.BufferAllocator;
import it.cavallium.dbengine.database.DatabaseProperties;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public interface CompositeDatabase {
public interface CompositeDatabase extends DatabaseProperties {
Mono<Void> close();

3
src/main/java/it/cavallium/dbengine/database/ColumnProperty.java Normal file
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@ -0,0 +1,3 @@
package it.cavallium.dbengine.database;
public record ColumnProperty<T>(String columnName, String propertyName, T value) {}

31
src/main/java/it/cavallium/dbengine/database/DatabaseProperties.java Normal file
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@ -0,0 +1,31 @@
package it.cavallium.dbengine.database;
import it.cavallium.dbengine.client.MemoryStats;
import it.cavallium.dbengine.rpc.current.data.Column;
import java.util.Map;
import org.jetbrains.annotations.Nullable;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public interface DatabaseProperties {
Mono<MemoryStats> getMemoryStats();
Mono<String> getRocksDBStats();
Mono<Map<String, String>> getMapProperty(@Nullable Column column, RocksDBMapProperty property);
Flux<ColumnProperty<Map<String, String>>> getMapColumnProperties(RocksDBMapProperty property);
Mono<String> getStringProperty(@Nullable Column column, RocksDBStringProperty property);
Flux<ColumnProperty<String>> getStringColumnProperties(RocksDBStringProperty property);
Mono<Long> getLongProperty(@Nullable Column column, RocksDBLongProperty property);
Flux<ColumnProperty<Long>> getLongColumnProperties(RocksDBLongProperty property);
Mono<Long> getAggregatedLongProperty(RocksDBLongProperty property);
Flux<TableWithProperties> getTableProperties();
}

14
src/main/java/it/cavallium/dbengine/database/LLKeyValueDatabase.java
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@ -7,14 +7,14 @@ import io.netty5.buffer.api.BufferAllocator;
import it.cavallium.dbengine.client.MemoryStats;
import it.cavallium.dbengine.database.collections.DatabaseInt;
import it.cavallium.dbengine.database.collections.DatabaseLong;
import it.cavallium.dbengine.rpc.current.data.Column;
import java.nio.charset.StandardCharsets;
import java.util.Map.Entry;
import java.util.Map;
import org.jetbrains.annotations.Nullable;
import org.rocksdb.TableProperties;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
public interface LLKeyValueDatabase extends LLSnapshottable, LLKeyValueDatabaseStructure {
public interface LLKeyValueDatabase extends LLSnapshottable, LLKeyValueDatabaseStructure, DatabaseProperties {
Mono<? extends LLSingleton> getSingleton(byte[] singletonListColumnName, byte[] name, byte @Nullable[] defaultValue);
@ -54,14 +54,6 @@ public interface LLKeyValueDatabase extends LLSnapshottable, LLKeyValueDatabaseS
.map(DatabaseLong::new);
}
Mono<Long> getProperty(String propertyName);
Mono<MemoryStats> getMemoryStats();
Mono<String> getRocksDBStats();
Flux<TableWithProperties> getTableProperties();
Mono<Void> verifyChecksum();
Mono<Void> compact();

106
src/main/java/it/cavallium/dbengine/database/RocksDBLongProperty.java Normal file
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@ -0,0 +1,106 @@
package it.cavallium.dbengine.database;
public enum RocksDBLongProperty implements RocksDBProperty {
NUM_FILES_AT_LEVEL_0("num-files-at-level0"),
NUM_FILES_AT_LEVEL_1("num-files-at-level1"),
NUM_FILES_AT_LEVEL_2("num-files-at-level2"),
NUM_FILES_AT_LEVEL_3("num-files-at-level3"),
NUM_FILES_AT_LEVEL_4("num-files-at-level4"),
NUM_FILES_AT_LEVEL_5("num-files-at-level5"),
NUM_FILES_AT_LEVEL_6("num-files-at-level6"),
NUM_FILES_AT_LEVEL_7("num-files-at-level7"),
NUM_FILES_AT_LEVEL_8("num-files-at-level8"),
NUM_FILES_AT_LEVEL_9("num-files-at-level9"),
COMPRESSION_RATIO_AT_LEVEL_0("compression-ratio-at-level0"),
COMPRESSION_RATIO_AT_LEVEL_1("compression-ratio-at-level1"),
COMPRESSION_RATIO_AT_LEVEL_2("compression-ratio-at-level2"),
COMPRESSION_RATIO_AT_LEVEL_3("compression-ratio-at-level3"),
COMPRESSION_RATIO_AT_LEVEL_4("compression-ratio-at-level4"),
COMPRESSION_RATIO_AT_LEVEL_5("compression-ratio-at-level5"),
COMPRESSION_RATIO_AT_LEVEL_6("compression-ratio-at-level6"),
COMPRESSION_RATIO_AT_LEVEL_7("compression-ratio-at-level7"),
COMPRESSION_RATIO_AT_LEVEL_8("compression-ratio-at-level8"),
COMPRESSION_RATIO_AT_LEVEL_9("compression-ratio-at-level9"),
NUM_IMMUTABLE_MEM_TABLE("num-immutable-mem-table"),
NUM_IMMUTABLE_MEM_TABLE_FLUSHED("num-immutable-mem-table-flushed"),
MEM_TABLE_FLUSH_PENDING("mem-table-flush-pending"),
NUM_RUNNING_FLUSHES("num-running-flushes"),
COMPACTION_PENDING("compaction-pending"),
NUM_RUNNING_COMPACTIONS("num-running-compactions"),
BACKGROUND_ERRORS("background-errors"),
CUR_SIZE_ACTIVE_MEM_TABLE("cur-size-active-mem-table"),
CUR_SIZE_ALL_MEM_TABLES("cur-size-all-mem-tables"),
SIZE_ALL_MEM_TABLES("size-all-mem-tables"),
NUM_ENTRIES_ACTIVE_MEM_TABLE("num-entries-active-mem-table"),
NUM_ENTRIES_IMMUTABLE_MEM_TABLES("num-entries-imm-mem-tables"),
NUM_DELETES_ACTIVE_MEM_TABLE("num-deletes-active-mem-table"),
NUM_DELETES_IMMUTABLE_MEM_TABLES("num-deletes-imm-mem-tables"),
ESTIMATE_NUM_KEYS("estimate-num-keys"),
ESTIMATE_TABLE_READERS_MEM("estimate-table-readers-mem"),
IS_FILE_DELETIONS_ENABLED("is-file-deletions-enabled"),
NUM_SNAPSHOTS("num-snapshots"),
OLDEST_SNAPSHOT_TIME("oldest-snapshot-time"),
OLDEST_SNAPSHOT_SEQUENCE("oldest-snapshot-sequence"),
NUM_LIVE_VERSIONS("num-live-versions"),
CURRENT_SUPER_VERSION_NUMBER("current-super-version-number"),
ESTIMATE_LIVE_DATA_SIZE("estimate-live-data-size"),
MIN_LOG_NUMBER_TO_KEEP("min-log-number-to-keep"),
MIN_OBSOLETE_SST_NUMBER_TO_KEEP("min-obsolete-sst-number-to-keep"),
TOTAL_SST_FILES_SIZE("total-sst-files-size"),
LIVE_SST_FILES_SIZE("live-sst-files-size"),
LIVE_SST_FILES_SIZE_AT_TEMPERATURE("live-sst-files-size-at-temperature"),
BASE_LEVEL("base-level"),
ESTIMATE_PENDING_COMPACTION_BYTES("estimate-pending-compaction-bytes"),
ACTUAL_DELAYED_WRITE_RATE("actual-delayed-write-rate"),
IS_WRITE_STOPPED("is-write-stopped"),
ESTIMATE_OLDEST_KEY_TIME("estimate-oldest-key-time"),
BLOCK_CACHE_CAPACITY("block-cache-capacity", false),
BLOCK_CACHE_USAGE("block-cache-usage", false),
BLOCK_CACHE_PINNED_USAGE("block-cache-pinned-usage", false),
NUM_BLOB_FILES("num-blob-files"),
TOTAL_BLOB_FILE_SIZE("total-blob-file-size"),
LIVE_BLOB_FILE_SIZE("live-blob-file-size"),
LIVE_BLOB_FILE_GARBAGE_SIZE("live-blob-file-garbage-size")
;
private final String name;
private final boolean dividedByColumnFamily;
RocksDBLongProperty(String name) {
this(name, true);
}
RocksDBLongProperty(String name, boolean dividedByColumnFamily) {
this.name = name;
this.dividedByColumnFamily = dividedByColumnFamily;
}
@Override
public String toString() {
return "rocksdb." + name;
}
@Override
public String getName() {
return "rocksdb." + name;
}
@Override
public boolean isNumeric() {
return true;
}
@Override
public boolean isMap() {
return false;
}
@Override
public boolean isString() {
return false;
}
public boolean isDividedByColumnFamily() {
return dividedByColumnFamily;
}
}

40
src/main/java/it/cavallium/dbengine/database/RocksDBMapProperty.java Normal file
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@ -0,0 +1,40 @@
package it.cavallium.dbengine.database;
public enum RocksDBMapProperty implements RocksDBProperty {
CFSTATS("cfstats"),
DBSTATS("dbstats"),
BLOCK_CACHE_ENTRY_STATS("block-cache-entry-stats"),
AGGREGATED_TABLE_PROPERTIES("aggregated-table-properties"),
;
private final String name;
RocksDBMapProperty(String name) {
this.name = name;
}
@Override
public String toString() {
return "rocksdb." + name;
}
@Override
public String getName() {
return "rocksdb." + name;
}
@Override
public boolean isNumeric() {
return false;
}
@Override
public boolean isMap() {
return true;
}
@Override
public boolean isString() {
return false;
}
}

12
src/main/java/it/cavallium/dbengine/database/RocksDBProperty.java Normal file
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@ -0,0 +1,12 @@
package it.cavallium.dbengine.database;
public interface RocksDBProperty {
String getName();
boolean isNumeric();
boolean isMap();
boolean isString();
}

53
src/main/java/it/cavallium/dbengine/database/RocksDBStringProperty.java Normal file
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@ -0,0 +1,53 @@
package it.cavallium.dbengine.database;
public enum RocksDBStringProperty implements RocksDBProperty {
STATS("stats"),
SSTABLES("sstables"),
CFSTATS_NO_FILE_HISTOGRAM("cfstats-no-file-histogram"),
CF_FILE_HISTOGRAM("cf-file-histogram"),
LEVELSTATS("levelstats"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_0("aggregated-table-properties-at-level0"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_1("aggregated-table-properties-at-level1"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_2("aggregated-table-properties-at-level2"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_3("aggregated-table-properties-at-level3"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_4("aggregated-table-properties-at-level4"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_5("aggregated-table-properties-at-level5"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_6("aggregated-table-properties-at-level6"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_7("aggregated-table-properties-at-level7"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_8("aggregated-table-properties-at-level8"),
AGGREGATED_TABLE_PROPERTIES_AT_LEVEL_9("aggregated-table-properties-at-level9"),
OPTIONS_STATISTICS("options-statistics"),
BLOB_STATS("blob-stats")
;
private final String name;
RocksDBStringProperty(String name) {
this.name = name;
}
@Override
public String toString() {
return "rocksdb." + name;
}
@Override
public String getName() {
return "rocksdb." + name;
}
@Override
public boolean isNumeric() {
return false;
}
@Override
public boolean isMap() {
return false;
}
@Override
public boolean isString() {
return true;
}
}

245
src/main/java/it/cavallium/dbengine/database/disk/LLLocalKeyValueDatabase.java
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@ -1,8 +1,8 @@
package it.cavallium.dbengine.database.disk;
import static com.google.common.collect.Lists.partition;
import static io.netty5.buffer.api.StandardAllocationTypes.OFF_HEAP;
import static it.cavallium.dbengine.database.LLUtils.MARKER_ROCKSDB;
import static java.util.Objects.requireNonNull;
import static org.rocksdb.ColumnFamilyOptionsInterface.DEFAULT_COMPACTION_MEMTABLE_MEMORY_BUDGET;
import io.micrometer.core.instrument.MeterRegistry;
@ -12,10 +12,14 @@ import io.netty5.buffer.api.BufferAllocator;
import io.netty5.util.internal.PlatformDependent;
import it.cavallium.data.generator.nativedata.NullableString;
import it.cavallium.dbengine.client.MemoryStats;
import it.cavallium.dbengine.database.ColumnProperty;
import it.cavallium.dbengine.database.ColumnUtils;
import it.cavallium.dbengine.database.LLKeyValueDatabase;
import it.cavallium.dbengine.database.LLSnapshot;
import it.cavallium.dbengine.database.LLUtils;
import it.cavallium.dbengine.database.RocksDBLongProperty;
import it.cavallium.dbengine.database.RocksDBMapProperty;
import it.cavallium.dbengine.database.RocksDBStringProperty;
import it.cavallium.dbengine.database.TableWithProperties;
import it.cavallium.dbengine.database.UpdateMode;
import it.cavallium.dbengine.rpc.current.data.Column;
@ -35,20 +39,13 @@ import java.time.Duration;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
import java.util.concurrent.locks.StampedLock;
import java.util.stream.Collectors;
import java.util.stream.Stream;
@ -56,6 +53,7 @@ import org.apache.commons.lang3.time.StopWatch;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.jetbrains.annotations.Nullable;
import org.reactivestreams.Publisher;
import org.rocksdb.BlockBasedTableConfig;
import org.rocksdb.BloomFilter;
import org.rocksdb.Cache;
@ -64,8 +62,6 @@ import org.rocksdb.ColumnFamilyDescriptor;
import org.rocksdb.ColumnFamilyHandle;
import org.rocksdb.ColumnFamilyOptions;
import org.rocksdb.CompactRangeOptions;
import org.rocksdb.CompactionJobInfo;
import org.rocksdb.CompactionOptions;
import org.rocksdb.CompactionPriority;
import org.rocksdb.CompressionOptions;
import org.rocksdb.CompressionType;
@ -78,13 +74,11 @@ import org.rocksdb.IndexType;
import org.rocksdb.InfoLogLevel;
import org.rocksdb.IngestExternalFileOptions;
import org.rocksdb.LRUCache;
import org.rocksdb.LevelMetaData;
import org.rocksdb.OptimisticTransactionDB;
import org.rocksdb.PersistentCache;
import org.rocksdb.RocksDB;
import org.rocksdb.RocksDBException;
import org.rocksdb.Snapshot;
import org.rocksdb.SstFileMetaData;
import org.rocksdb.TransactionDB;
import org.rocksdb.TransactionDBOptions;
import org.rocksdb.TxnDBWritePolicy;
@ -373,7 +367,7 @@ public class LLLocalKeyValueDatabase implements LLKeyValueDatabase {
}
// Get databases directory path
Objects.requireNonNull(path);
requireNonNull(path);
Path databasesDirPath = path.toAbsolutePath().getParent();
String dbPathString = databasesDirPath.toString() + File.separatorChar + path.getFileName();
Path dbPath = Paths.get(dbPathString);
@ -493,19 +487,16 @@ public class LLLocalKeyValueDatabase implements LLKeyValueDatabase {
logger.debug("Failed to obtain stats", ex);
}
registerGauge(meterRegistry, name, "rocksdb.estimate-table-readers-mem", false);
registerGauge(meterRegistry, name, "rocksdb.size-all-mem-tables", false);
registerGauge(meterRegistry, name, "rocksdb.cur-size-all-mem-tables", false);
registerGauge(meterRegistry, name, "rocksdb.estimate-num-keys", false);
registerGauge(meterRegistry, name, "rocksdb.block-cache-usage", true);
registerGauge(meterRegistry, name, "rocksdb.block-cache-pinned-usage", true);
for (RocksDBLongProperty property : RocksDBLongProperty.values()) {
registerGauge(meterRegistry, name, property.getName(), property.isDividedByColumnFamily());
}
// Bloom seek stats
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.prefix.useful", false);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.prefix.checked", false);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.prefix.useful", true);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.prefix.checked", true);
// Bloom point lookup stats
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.useful", false);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.full.positive", false);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.full.true.positive", false);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.useful", true);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.full.positive", true);
registerGauge(meterRegistry, name, "rocksdb.bloom.filter.full.true.positive", true);
}
public static boolean isDisableAutoCompactions() {
@ -635,30 +626,59 @@ public class LLLocalKeyValueDatabase implements LLKeyValueDatabase {
}
private void registerGauge(MeterRegistry meterRegistry, String name, String propertyName, boolean divideByAllColumns) {
meterRegistry.gauge("rocksdb.property.value",
List.of(Tag.of("db.name", name), Tag.of("db.property.name", propertyName)),
db,
database -> {
if (closed) {
return 0d;
}
var closeReadLock = closeLock.readLock();
try {
if (divideByAllColumns) {
for (Entry<Column, ColumnFamilyHandle> cfhEntry : handles.entrySet()) {
var columnName = cfhEntry.getKey().name();
var cfh = cfhEntry.getValue();
meterRegistry.gauge("rocksdb.property.value",
List.of(Tag.of("db.name", name), Tag.of("db.column.name", columnName), Tag.of("db.property.name", propertyName)),
db,
database -> {
if (closed) {
return 0d;
}
var closeReadLock = closeLock.readLock();
try {
if (closed) {
return 0d;
}
return database.getLongProperty(cfh, propertyName);
} catch (RocksDBException e) {
if ("NotFound".equals(e.getMessage())) {
return 0d;
}
throw new RuntimeException(e);
} finally {
closeLock.unlockRead(closeReadLock);
}
}
);
}
} else {
meterRegistry.gauge("rocksdb.property.value",
List.of(Tag.of("db.name", name), Tag.of("db.property.name", propertyName)),
db,
database -> {
if (closed) {
return 0d;
}
return database.getAggregatedLongProperty(propertyName)
/ (divideByAllColumns ? getAllColumnFamilyHandles().size() : 1d);
} catch (RocksDBException e) {
if ("NotFound".equals(e.getMessage())) {
return 0d;
var closeReadLock = closeLock.readLock();
try {
if (closed) {
return 0d;
}
return database.getLongProperty(propertyName);
} catch (RocksDBException e) {
if ("NotFound".equals(e.getMessage())) {
return 0d;
}
throw new RuntimeException(e);
} finally {
closeLock.unlockRead(closeReadLock);
}
throw new RuntimeException(e);
} finally {
closeLock.unlockRead(closeReadLock);
}
}
);
);
}
}
@Override
@ -817,8 +837,8 @@ public class LLLocalKeyValueDatabase implements LLKeyValueDatabase {
options.setDeleteObsoleteFilesPeriodMicros(20 * 1000000); // 20 seconds
options.setKeepLogFileNum(10);
Objects.requireNonNull(databasesDirPath);
Objects.requireNonNull(path.getFileName());
requireNonNull(databasesDirPath);
requireNonNull(path.getFileName());
List<DbPath> paths = convertPaths(databasesDirPath, path.getFileName(), databaseOptions.volumes())
.stream()
.map(p -> new DbPath(p.path, p.targetSize))
@ -1079,19 +1099,6 @@ public class LLLocalKeyValueDatabase implements LLKeyValueDatabase {
return databaseOptions;
}
@Override
public Mono<Long> getProperty(String propertyName) {
return Mono.fromCallable(() -> {
var closeReadLock = closeLock.readLock();
try {
ensureOpen();
return db.getAggregatedLongProperty(propertyName);
} finally {
closeLock.unlockRead(closeReadLock);
}
}).onErrorMap(cause -> new IOException("Failed to read " + propertyName, cause)).subscribeOn(dbRScheduler);
}
public Flux<Path> getSSTS() {
var paths = convertPaths(dbPath.toAbsolutePath().getParent(), dbPath.getFileName(), databaseOptions.volumes());
return Mono
@ -1172,6 +1179,126 @@ public class LLLocalKeyValueDatabase implements LLKeyValueDatabase {
.subscribeOn(dbRScheduler);
}
@Override
public Mono<Map<String, String>> getMapProperty(@Nullable Column column, RocksDBMapProperty property) {
return Mono
.fromCallable(() -> {
var closeReadLock = closeLock.readLock();
try {
ensureOpen();
if (column == null) {
return db.getMapProperty(property.getName());
} else {
var cfh = requireNonNull(handles.get(column));
return db.getMapProperty(cfh, property.getName());
}
} finally {
closeLock.unlockRead(closeReadLock);
}
})
.transform(this::convertNotFoundToEmpty)
.onErrorMap(cause -> new IOException("Failed to read property " + property.name(), cause))
.subscribeOn(dbRScheduler);
}
@Override
public Flux<ColumnProperty<Map<String, String>>> getMapColumnProperties(RocksDBMapProperty property) {
return Flux
.fromIterable(getAllColumnFamilyHandles().keySet())
.flatMapSequential(c -> this
.getMapProperty(c, property)
.map(result -> new ColumnProperty<>(c.name(), property.getName(), result)));
}
@Override
public Mono<String> getStringProperty(@Nullable Column column, RocksDBStringProperty property) {
return Mono
.fromCallable(() -> {
var closeReadLock = closeLock.readLock();
try {
ensureOpen();
if (column == null) {
return db.getProperty(property.getName());
} else {
var cfh = requireNonNull(handles.get(column));
return db.getProperty(cfh, property.getName());
}
} finally {
closeLock.unlockRead(closeReadLock);
}
})
.transform(this::convertNotFoundToEmpty)
.onErrorMap(cause -> new IOException("Failed to read property " + property.name(), cause))
.subscribeOn(dbRScheduler);
}
@Override
public Flux<ColumnProperty<String>> getStringColumnProperties(RocksDBStringProperty property) {
return Flux
.fromIterable(getAllColumnFamilyHandles().keySet())
.flatMapSequential(c -> this
.getStringProperty(c, property)
.map(result -> new ColumnProperty<>(c.name(), property.getName(), result)));
}
@Override
public Mono<Long> getLongProperty(@Nullable Column column, RocksDBLongProperty property) {
return Mono
.fromCallable(() -> {
var closeReadLock = closeLock.readLock();
try {
ensureOpen();
if (column == null) {
return db.getLongProperty(property.getName());
} else {
var cfh = requireNonNull(handles.get(column));
return db.getLongProperty(cfh, property.getName());
}
} finally {
closeLock.unlockRead(closeReadLock);
}
})
.transform(this::convertNotFoundToEmpty)
.onErrorMap(cause -> new IOException("Failed to read property " + property.name(), cause))
.subscribeOn(dbRScheduler);
}
@Override
public Flux<ColumnProperty<Long>> getLongColumnProperties(RocksDBLongProperty property) {
return Flux
.fromIterable(getAllColumnFamilyHandles().keySet())
.flatMapSequential(c -> this
.getLongProperty(c, property)
.map(result -> new ColumnProperty<>(c.name(), property.getName(), result)));
}
@Override
public Mono<Long> getAggregatedLongProperty(RocksDBLongProperty property) {
return Mono
.fromCallable(() -> {
var closeReadLock = closeLock.readLock();
try {
ensureOpen();
return db.getAggregatedLongProperty(property.getName());
} finally {
closeLock.unlockRead(closeReadLock);
}
})
.transform(this::convertNotFoundToEmpty)
.onErrorMap(cause -> new IOException("Failed to read property " + property.name(), cause))
.subscribeOn(dbRScheduler);
}
private <V> Mono<V> convertNotFoundToEmpty(Mono<V> mono) {
return mono.onErrorResume(RocksDBException.class, ex -> {
if (ex.getMessage().equals("NotFound")) {
return Mono.empty();
} else {
return Mono.error(ex);
}
});
}
@Override
public Mono<String> getRocksDBStats() {
return Mono

45
src/main/java/it/cavallium/dbengine/database/memory/LLMemoryKeyValueDatabase.java
View File

@ -3,17 +3,22 @@ package it.cavallium.dbengine.database.memory;
import io.micrometer.core.instrument.MeterRegistry;
import io.netty5.buffer.api.BufferAllocator;
import it.cavallium.dbengine.client.MemoryStats;
import it.cavallium.dbengine.database.ColumnProperty;
import it.cavallium.dbengine.database.LLDictionary;
import it.cavallium.dbengine.database.LLKeyValueDatabase;
import it.cavallium.dbengine.database.LLSingleton;
import it.cavallium.dbengine.database.LLSnapshot;
import it.cavallium.dbengine.database.LLUtils;
import it.cavallium.dbengine.database.RocksDBLongProperty;
import it.cavallium.dbengine.database.RocksDBMapProperty;
import it.cavallium.dbengine.database.RocksDBStringProperty;
import it.cavallium.dbengine.database.TableWithProperties;
import it.cavallium.dbengine.database.UpdateMode;
import it.cavallium.dbengine.rpc.current.data.Column;
import it.unimi.dsi.fastutil.bytes.ByteList;
import java.nio.charset.StandardCharsets;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentSkipListMap;
import java.util.concurrent.atomic.AtomicLong;
@ -90,11 +95,6 @@ public class LLMemoryKeyValueDatabase implements LLKeyValueDatabase {
));
}
@Override
public Mono<Long> getProperty(String propertyName) {
return Mono.empty();
}
@Override
public Mono<MemoryStats> getMemoryStats() {
return Mono.just(new MemoryStats(0, 0, 0, 0, 0, 0));
@ -105,6 +105,41 @@ public class LLMemoryKeyValueDatabase implements LLKeyValueDatabase {
return Mono.empty();
}
@Override
public Mono<Map<String, String>> getMapProperty(@Nullable Column column, RocksDBMapProperty property) {
return Mono.empty();
}
@Override
public Flux<ColumnProperty<Map<String, String>>> getMapColumnProperties(RocksDBMapProperty property) {
return Flux.empty();
}
@Override
public Mono<String> getStringProperty(@Nullable Column column, RocksDBStringProperty property) {
return Mono.empty();
}
@Override
public Flux<ColumnProperty<String>> getStringColumnProperties(RocksDBStringProperty property) {
return Flux.empty();
}
@Override
public Mono<Long> getLongProperty(@Nullable Column column, RocksDBLongProperty property) {
return Mono.empty();
}
@Override
public Flux<ColumnProperty<Long>> getLongColumnProperties(RocksDBLongProperty property) {
return Flux.empty();
}
@Override
public Mono<Long> getAggregatedLongProperty(RocksDBLongProperty property) {
return Mono.empty();
}
@Override
public Flux<TableWithProperties> getTableProperties() {
return Flux.empty();

48
src/main/java/it/cavallium/dbengine/database/remote/LLQuicConnection.java
View File

@ -10,6 +10,7 @@ import io.netty5.buffer.api.Send;
import it.cavallium.dbengine.client.MemoryStats;
import it.cavallium.dbengine.client.query.current.data.Query;
import it.cavallium.dbengine.client.query.current.data.QueryParams;
import it.cavallium.dbengine.database.ColumnProperty;
import it.cavallium.dbengine.database.LLDatabaseConnection;
import it.cavallium.dbengine.database.LLDelta;
import it.cavallium.dbengine.database.LLDictionary;
@ -21,13 +22,15 @@ import it.cavallium.dbengine.database.LLSingleton;
import it.cavallium.dbengine.database.LLSnapshot;
import it.cavallium.dbengine.database.LLTerm;
import it.cavallium.dbengine.database.LLUpdateDocument;
import it.cavallium.dbengine.database.RocksDBLongProperty;
import it.cavallium.dbengine.database.RocksDBMapProperty;
import it.cavallium.dbengine.database.RocksDBStringProperty;
import it.cavallium.dbengine.database.TableWithProperties;
import it.cavallium.dbengine.database.UpdateMode;
import it.cavallium.dbengine.database.UpdateReturnMode;
import it.cavallium.dbengine.database.disk.BinarySerializationFunction;
import it.cavallium.dbengine.database.remote.RPCCodecs.RPCEventCodec;
import it.cavallium.dbengine.database.serialization.SerializationException;
import it.cavallium.dbengine.database.serialization.SerializationFunction;
import it.cavallium.dbengine.lucene.LuceneHacks;
import it.cavallium.dbengine.lucene.collector.Buckets;
import it.cavallium.dbengine.lucene.searcher.BucketParams;
@ -61,13 +64,12 @@ import java.io.File;
import java.net.SocketAddress;
import java.time.Duration;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.rocksdb.DBOptions;
import org.rocksdb.TableProperties;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
import reactor.netty.incubator.quic.QuicClient;
@ -321,11 +323,6 @@ public class LLQuicConnection implements LLDatabaseConnection {
return null;
}
@Override
public Mono<Long> getProperty(String propertyName) {
return null;
}
@Override
public Mono<MemoryStats> getMemoryStats() {
return null;
@ -336,6 +333,41 @@ public class LLQuicConnection implements LLDatabaseConnection {
return null;
}
@Override
public Mono<Long> getAggregatedLongProperty(RocksDBLongProperty property) {
return null;
}
@Override
public Mono<String> getStringProperty(@Nullable Column column, RocksDBStringProperty property) {
return null;
}
@Override
public Flux<ColumnProperty<String>> getStringColumnProperties(RocksDBStringProperty property) {
return null;
}
@Override
public Mono<Long> getLongProperty(@Nullable Column column, RocksDBLongProperty property) {
return null;
}
@Override
public Flux<ColumnProperty<Long>> getLongColumnProperties(RocksDBLongProperty property) {
return null;
}
@Override
public Mono<Map<String, String>> getMapProperty(@Nullable Column column, RocksDBMapProperty property) {
return null;
}
@Override
public Flux<ColumnProperty<Map<String, String>>> getMapColumnProperties(RocksDBMapProperty property) {
return null;
}
@Override
public Flux<TableWithProperties> getTableProperties() {
return null;