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PartitionStorage update

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New data Merge method
RemoveKeys method
RemoveAllExcetpKeys method
pull/4/head
Ogoun 2 years ago
parent 4ed708ee47
commit 94d3e1ca71
13 changed files with 636 additions and 189 deletions
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428
PartitionFileStorageTest/Program.cs
Unescape View File

@ -4,109 +4,144 @@ using ZeroLevel.Services.PartitionStorage;
namespace PartitionFileStorageTest
{
public class CallRecordParser
{
private static HashSet<char> _partsOfNumbers = new HashSet<char> { '*', '#', '+', '(', ')', '-' };
private StringBuilder sb = new StringBuilder();
private const string NO_VAL = null;
private string ReadNumber(string line)
{
sb.Clear();
var started = false;
foreach (var ch in line)
{
if (char.IsDigit(ch))
internal class Program
{
if (started)
private class Metadata
{
sb.Append(ch);
public DateTime Date { get; set; }
}
else if (ch != '0')
private static ulong Generate(Random r)
{
sb.Append(ch);
started = true;
}
}
else if (char.IsWhiteSpace(ch) || _partsOfNumbers.Contains(ch)) continue;
else return NO_VAL;
var num = new StringBuilder();
num.Append("79");
num.Append(r.Next(99).ToString("D2"));
num.Append(r.Next(999).ToString("D7"));
return ulong.Parse(num.ToString());
}
if (sb.Length == 11 && sb[0] == '8') sb[0] = '7';
if (sb.Length == 3 || sb.Length == 4 || sb.Length > 10)
return sb.ToString();
return NO_VAL;
}
private HashSet<string> ReadNumbers(string line)
{
var result = new HashSet<string>();
if (string.IsNullOrWhiteSpace(line) == false)
{
char STX = (char)0x0002;
var values = line.Split(STX);
if (values.Length > 0)
private static void BuildStore(string root)
{
foreach (var val in values)
var options = new StoreOptions<ulong, ulong, byte[], Metadata>
{
var number = ReadNumber(val);
if (number != null)
Index = new IndexOptions { Enabled = true, FileIndexCount = 64 },
RootFolder = root,
FilePartition = new StoreFilePartition<ulong, Metadata>("Last three digits", (ctn, date) => (ctn % 128).ToString()),
MergeFunction = list =>
{
result.Add(number);
}
}
}
}
return result;
}
/// <summary>
/// Парсинг строки исходного файла
/// </summary>
/// <param name="line"></param>
/// <returns></returns>
public CallRecord Parse(string line)
ulong s = 0;
return Compressor.GetEncodedBytes(list.OrderBy(c => c), ref s);
},
Partitions = new List<StoreCatalogPartition<Metadata>>
{
var parts = line.Split('\t');
if (parts.Length != 2) return null;
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd"))
},
KeyComparer = (left, right) => left == right ? 0 : (left < right) ? -1 : 1,
};
var store = new Store<ulong, ulong, byte[], Metadata>(options);
var storePart1 = store.CreateBuilder(new Metadata { Date = new DateTime(2022, 11, 08) });
var storePart2 = store.CreateBuilder(new Metadata { Date = new DateTime(2022, 11, 09) });
var msisdn = ReadNumber(parts[0].Trim());
var sw = new Stopwatch();
sw.Start();
if (string.IsNullOrWhiteSpace(msisdn) == false)
{
var numbers = ReadNumbers(parts[1]);
if (numbers != null && numbers.Count > 0)
var r = new Random(Environment.TickCount);
for (int i = 0; i < 1000000; i++)
{
return new CallRecord
var s = Generate(r);
var count = r.Next(300);
for (int j = 0; j < count; j++)
{
Msisdn = msisdn,
Msisdns = numbers
};
var t = Generate(r);
storePart1.Store(s, t);
}
}
return null;
for (int i = 0; i < 1000000; i++)
{
var s = Generate(r);
var count = r.Next(300);
for (int j = 0; j < count; j++)
{
var t = Generate(r);
storePart2.Store(s, t);
}
}
public class CallRecord
{
public string Msisdn;
public HashSet<string> Msisdns;
sw.Stop();
Console.WriteLine($"Fill journal: {sw.ElapsedMilliseconds}ms");
sw.Restart();
storePart1.CompleteAddingAndCompress();
storePart2.CompleteAddingAndCompress();
sw.Stop();
Console.WriteLine($"Rebuild journal to store: {sw.ElapsedMilliseconds}ms");
sw.Restart();
storePart1.RebuildIndex();
storePart2.RebuildIndex();
sw.Stop();
Console.WriteLine($"Rebuild indexes: {sw.ElapsedMilliseconds}ms");
}
internal class Program
private static void SmallFullTest(string root)
{
private class Metadata
var r = new Random(Environment.TickCount);
var options = new StoreOptions<ulong, ulong, byte[], Metadata>
{
public DateTime Date { get; set; }
public bool Incoming { get; set; }
Index = new IndexOptions { Enabled = true, FileIndexCount = 64 },
RootFolder = root,
FilePartition = new StoreFilePartition<ulong, Metadata>("Last three digits", (ctn, date) => (ctn % 128).ToString()),
MergeFunction = list =>
{
ulong s = 0;
return Compressor.GetEncodedBytes(list.OrderBy(c => c), ref s);
},
Partitions = new List<StoreCatalogPartition<Metadata>>
{
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd"))
},
KeyComparer = (left, right) => left == right ? 0 : (left < right) ? -1 : 1,
};
var store = new Store<ulong, ulong, byte[], Metadata>(options);
var storePart = store.CreateBuilder(new Metadata { Date = new DateTime(2022, 11, 08) });
Console.WriteLine("Small test start");
var c1 = (ulong)(86438 * 128);
var c2 = (ulong)(83438 * 128);
var c3 = (ulong)(831238 * 128);
storePart.Store(c1, Generate(r));
storePart.Store(c1, Generate(r));
storePart.Store(c1, Generate(r));
storePart.Store(c2, Generate(r));
storePart.Store(c2, Generate(r));
storePart.Store(c2, Generate(r));
storePart.Store(c2, Generate(r));
storePart.Store(c2, Generate(r));
storePart.Store(c3, Generate(r));
storePart.Store(c3, Generate(r));
storePart.Store(c3, Generate(r));
storePart.CompleteAddingAndCompress();
var readPart = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 08) });
Console.WriteLine("Data:");
foreach (var e in readPart.Iterate())
{
Console.WriteLine($"{e.Key}: {e.Value.Length}");
}
readPart.RemoveKey(c1);
Console.WriteLine("Data after remove:");
foreach (var e in readPart.Iterate())
{
Console.WriteLine($"{e.Key}: {e.Value.Length}");
}
}
private static void BuildStore(string source, string root)
private static void TestBuildRemoveStore(string root)
{
var r = new Random(Environment.TickCount);
var options = new StoreOptions<ulong, ulong, byte[], Metadata>
{
Index = new IndexOptions { Enabled = true, FileIndexCount = 256 },
Index = new IndexOptions { Enabled = true, FileIndexCount = 64 },
RootFolder = root,
FilePartition = new StoreFilePartition<ulong, Metadata>("Last three digits", (ctn, date) => (ctn % 512).ToString()),
FilePartition = new StoreFilePartition<ulong, Metadata>("Last three digits", (ctn, date) => (ctn % 128).ToString()),
MergeFunction = list =>
{
ulong s = 0;
@ -114,55 +149,127 @@ namespace PartitionFileStorageTest
},
Partitions = new List<StoreCatalogPartition<Metadata>>
{
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd")),
new StoreCatalogPartition<Metadata>("Date", m => m.Incoming ? "incoming" : "outcoming")
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd"))
},
KeyComparer = (left, right) => left == right ? 0 : (left < right) ? -1 : 1,
};
var store = new Store<ulong, ulong, byte[], Metadata>(options);
var storePart = store.CreateBuilder(new Metadata { Date = new DateTime(2022, 11, 08) });
var storeIncoming = store.CreateBuilder(new Metadata { Date = new DateTime(2022, 11, 08), Incoming = true });
var storeOutcoming = store.CreateBuilder(new Metadata { Date = new DateTime(2022, 11, 08), Incoming = false });
var parser = new CallRecordParser();
var sw = new Stopwatch();
sw.Start();
using (FileStream fs = File.Open(source, FileMode.Open, FileAccess.Read, FileShare.None))
{
using (BufferedStream bs = new BufferedStream(fs, 1024 * 1024 * 64))
{
using (StreamReader sr = new StreamReader(bs))
{
string line;
while ((line = sr.ReadLine()) != null)
{
var record = parser.Parse(line);
if (record == null) continue;
if (!string.IsNullOrWhiteSpace(record?.Msisdn ?? string.Empty) && ulong.TryParse(record.Msisdn, out var n))
var testKeys1 = new List<ulong>();
var testKeys2 = new List<ulong>();
for (int i = 0; i < 1000000; i++)
{
var ctns = record.Msisdns.ParseMsisdns().ToArray();
foreach (var ctn in ctns)
var s = Generate(r);
var count = r.Next(300);
for (int j = 0; j < count; j++)
{
storeIncoming.Store(n, ctn);
storeOutcoming.Store(ctn, n);
}
}
var t = Generate(r);
storePart.Store(s, t);
}
if (s % 11217 == 0)
{
testKeys1.Add(s);
}
if (s % 11219 == 0)
{
testKeys2.Add(s);
}
}
sw.Stop();
Console.WriteLine($"Fill journal: {sw.ElapsedMilliseconds}ms");
sw.Restart();
storeIncoming.CompleteAddingAndCompress();
storeOutcoming.CompleteAddingAndCompress();
storePart.CompleteAddingAndCompress();
sw.Stop();
Console.WriteLine($"Rebuild journal to store: {sw.ElapsedMilliseconds}ms");
Console.WriteLine($"Compress: {sw.ElapsedMilliseconds}ms");
sw.Restart();
storeIncoming.RebuildIndex();
storeOutcoming.RebuildIndex();
storePart.RebuildIndex();
sw.Stop();
Console.WriteLine($"Rebuild indexes: {sw.ElapsedMilliseconds}ms");
Console.WriteLine("Start merge test");
sw.Restart();
var merger = store.CreateMergeAccessor(new Metadata { Date = new DateTime(2022, 11, 08) }, data => Compressor.DecodeBytesContent(data));
for (int i = 0; i < 1000000; i++)
{
var s = Generate(r);
var count = r.Next(300);
for (int j = 0; j < count; j++)
{
var t = Generate(r);
merger.Store(s, t);
}
}
Console.WriteLine($"Merge journal filled: {sw.ElapsedMilliseconds}ms");
merger.CompleteAddingAndCompress();
sw.Stop();
Console.WriteLine($"Compress after merge: {sw.ElapsedMilliseconds}ms");
sw.Restart();
merger.RebuildIndex();
sw.Stop();
Console.WriteLine($"Rebuild indexes after merge: {sw.ElapsedMilliseconds}ms");
Console.WriteLine("Test #1 reading");
var readPart = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 08) });
foreach (var key in testKeys1)
{
Console.WriteLine($"\tKey: {key}");
var result = readPart.Find(key);
Console.WriteLine($"\t\tFound: {result.Found}. {result.Value?.Length ?? 0} bytes");
}
Console.WriteLine("Press to continue");
Console.ReadKey();
Console.WriteLine("Test #1 remove by keys");
for (int i = 0; i < testKeys1.Count; i++)
{
if (i % 100 == 0)
{
readPart.RemoveKey(testKeys1[i]);
}
}
Console.WriteLine("Test #1 reading after remove");
foreach (var key in testKeys1)
{
Console.WriteLine($"\tKey: {key}");
var result = readPart.Find(key);
Console.WriteLine($"\t\tFound: {result.Found}. {result.Value?.Length ?? 0} bytes");
}
Console.WriteLine("Press to continue");
Console.ReadKey();
Console.WriteLine();
Console.WriteLine("---------------------------------------");
Console.WriteLine();
Console.WriteLine("Test #2 reading");
foreach (var key in testKeys2)
{
Console.WriteLine($"\tKey: {key}");
var result = readPart.Find(key);
Console.WriteLine($"\t\tFound: {result.Found}. {result.Value?.Length ?? 0} bytes");
}
Console.WriteLine("Press to continue");
Console.ReadKey();
Console.WriteLine("Test #2 remove keys batch");
readPart.RemoveKeys(testKeys2);
Console.WriteLine("Test #2 reading after remove");
foreach (var key in testKeys2)
{
Console.WriteLine($"\tKey: {key}");
var result = readPart.Find(key);
Console.WriteLine($"\t\tFound: {result.Found}. {result.Value?.Length ?? 0} bytes");
}
Console.WriteLine("Press to continue for iteration");
Console.ReadKey();
foreach (var e in readPart.Iterate())
{
Console.WriteLine($"{e.Key}: {e.Value.Length}");
}
}
private static void TestReading(string root)
@ -179,8 +286,7 @@ namespace PartitionFileStorageTest
},
Partitions = new List<StoreCatalogPartition<Metadata>>
{
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd")),
new StoreCatalogPartition<Metadata>("Date", m => m.Incoming ? "incoming" : "outcoming")
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd"))
},
KeyComparer = (left, right) => left == right ? 0 : (left < right) ? -1 : 1,
};
@ -191,26 +297,25 @@ namespace PartitionFileStorageTest
{
new PartitionSearchRequest<ulong, Metadata>
{
Info = new Metadata { Date = new DateTime(2022, 11, 08), Incoming = true },
Info = new Metadata { Date = new DateTime(2022, 11, 08) },
Keys = new ulong[] { }
},
new PartitionSearchRequest<ulong, Metadata>
{
Info = new Metadata { Date = new DateTime(2022, 11, 08), Incoming = false },
Info = new Metadata { Date = new DateTime(2022, 11, 09) },
Keys = new ulong[] { }
}
}
};
var storeIncoming = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 08), Incoming = true });
var storeIncoming = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 08) });
Console.WriteLine($"Incoming data files: {storeIncoming.CountDataFiles()}");
var storeOutcoming = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 08), Incoming = false });
var storeOutcoming = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 09) });
Console.WriteLine($"Outcoming data files: {storeOutcoming.CountDataFiles()}");
var sw = new Stopwatch();
sw.Start();
var result = store.Search(request).Result;
foreach (var r in result.Results)
{
Console.WriteLine($"Incoming: {r.Key.Incoming}");
foreach (var mr in r.Value)
{
Console.WriteLine($"\tKey: {mr.Key}. Sucess: {mr.Found}");
@ -225,29 +330,104 @@ namespace PartitionFileStorageTest
Console.WriteLine($"Search time: {sw.ElapsedMilliseconds}ms");
}
private struct KeyIndex<TKey>
private static void TestIterations(string root)
{
public TKey Key { get; set; }
public long Offset { get; set; }
}
static KeyIndex<long>[] Generate(int count)
var options = new StoreOptions<ulong, ulong, byte[], Metadata>
{
Index = new IndexOptions { Enabled = true, FileIndexCount = 256 },
RootFolder = root,
FilePartition = new StoreFilePartition<ulong, Metadata>("Last three digits", (ctn, date) => (ctn % 512).ToString()),
MergeFunction = list =>
{
var arr = new KeyIndex<long>[count];
for (int i = 0; i < count; i++)
ulong s = 0;
return Compressor.GetEncodedBytes(list.OrderBy(c => c), ref s);
},
Partitions = new List<StoreCatalogPartition<Metadata>>
{
arr[i] = new KeyIndex<long> { Key = i * 3, Offset = i * 17 };
new StoreCatalogPartition<Metadata>("Date", m => m.Date.ToString("yyyyMMdd"))
},
KeyComparer = (left, right) => left == right ? 0 : (left < right) ? -1 : 1,
};
var store = new Store<ulong, ulong, byte[], Metadata>(options);
var storeIncoming = store.CreateAccessor(new Metadata { Date = new DateTime(2022, 11, 08) });
foreach (var r in storeIncoming.Iterate())
{
Console.WriteLine($"{r.Key}: {r.Value.Length}");
}
return arr;
}
static void Main(string[] args)
{
var root = @"H:\temp";
var source = @"H:\319a9c31-d823-4dd1-89b0-7fb1bb9c4859.txt";
//BuildStore(source, root);
TestReading(root);
SmallFullTest(root);
//TestBuildRemoveStore(root);
//BuildStore(root);
//TestReading(root);
//TestIterations(root);
//TestRangeCompressionAndInversion();
Console.ReadKey();
}
private static void TestRangeCompressionAndInversion()
{
var list = new List<FilePositionRange>();
list.Add(new FilePositionRange { Start = 1, End = 36 });
list.Add(new FilePositionRange { Start = 36, End = 63 });
list.Add(new FilePositionRange { Start = 63, End = 89 });
list.Add(new FilePositionRange { Start = 93, End = 118 });
list.Add(new FilePositionRange { Start = 126, End = 199 });
list.Add(new FilePositionRange { Start = 199, End = 216 });
list.Add(new FilePositionRange { Start = 277, End = 500 });
RangeCompression(list);
foreach (var r in list)
{
Console.WriteLine($"{r.Start}: {r.End}");
}
Console.WriteLine("Invert ranges");
var inverted = RangeInversion(list, 500);
foreach (var r in inverted)
{
Console.WriteLine($"{r.Start}: {r.End}");
}
}
private static void RangeCompression(List<FilePositionRange> ranges)
{
for (var i = 0; i < ranges.Count - 1; i++)
{
var current = ranges[i];
var next = ranges[i + 1];
if (current.End == next.Start)
{
current.End = next.End;
ranges.RemoveAt(i + 1);
i--;
}
}
}
private static List<FilePositionRange> RangeInversion(List<FilePositionRange> ranges, long length)
{
if ((ranges?.Count ?? 0) == 0) return new List<FilePositionRange> { new FilePositionRange { Start = 0, End = length } };
var inverted = new List<FilePositionRange>();
var current = new FilePositionRange { Start = 0, End = ranges[0].Start };
for (var i = 0; i < ranges.Count; i++)
{
current.End = ranges[i].Start;
if (current.Start != current.End)
{
inverted.Add(new FilePositionRange { Start = current.Start, End = current.End });
}
current.Start = ranges[i].End;
}
if (current.End != length)
{
if (current.Start != length)
{
inverted.Add(new FilePositionRange { Start = current.Start, End = length });
}
}
return inverted;
}
}
}

52
ZeroLevel/Services/Collections/BatchProcessor.cs
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@ -0,0 +1,52 @@
using System;
using System.Collections.Generic;
namespace ZeroLevel.Services.Collections
{
public sealed class BatchProcessor<T>
: IDisposable
{
private readonly List<T> _batch;
private readonly int _batchSize;
private readonly Action<IReadOnlyList<T>> _insertAction;
public BatchProcessor(int batchSize, Action<IReadOnlyList<T>> insertAction)
{
_batch = new List<T>(batchSize);
_insertAction = insertAction;
_batchSize = batchSize;
}
public void Add(T val)
{
_batch.Add(val);
if (_batch.Count >= _batchSize)
{
try
{
_insertAction.Invoke(_batch);
}
catch (Exception ex)
{
Log.Error(ex, $"[BatchProcessor.Add] Fault insert");
}
_batch.Clear();
}
}
public void Dispose()
{
if (_batch.Count > 0)
{
try
{
_insertAction.Invoke(_batch);
}
catch (Exception ex)
{
Log.Error(ex, $"[BatchProcessor.Dispose] Fault insert");
}
}
_batch.Clear();
}
}
}

8
ZeroLevel/Services/PartitionStorage/FilePositionRange.cs
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@ -0,0 +1,8 @@
namespace ZeroLevel.Services.PartitionStorage
{
public class FilePositionRange
{
public long Start;
public long End;
}
}

2
ZeroLevel/Services/PartitionStorage/Interfaces/IStore.cs
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@ -20,5 +20,7 @@ namespace ZeroLevel.Services.PartitionStorage
IStorePartitionAccessor<TKey, TInput, TValue> CreateAccessor(TMeta info);
Task<StoreSearchResult<TKey, TValue, TMeta>> Search(StoreSearchRequest<TKey, TMeta> searchRequest);
void RemovePartition(TMeta info);
}
}

12
ZeroLevel/Services/PartitionStorage/Interfaces/IStoreCache.cs
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@ -0,0 +1,12 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ZeroLevel.Services.PartitionStorage.Interfaces
{
public interface IStoreCache<TKey, TInput, TValue, TMeta>
{
}
}

5
ZeroLevel/Services/PartitionStorage/Interfaces/IStorePartitionAccessor.cs
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@ -25,5 +25,10 @@ namespace ZeroLevel.Services.PartitionStorage
IEnumerable<StorePartitionKeyValueSearchResult<TKey, TValue>> Find(IEnumerable<TKey> keys);
IEnumerable<StorePartitionKeyValueSearchResult<TKey, TValue>> Iterate();
IEnumerable<StorePartitionKeyValueSearchResult<TKey, TValue>> IterateKeyBacket(TKey key);
void RemoveKey(TKey key);
void RemoveKeys(IEnumerable<TKey> keys);
void RemoveAllExceptKey(TKey key);
void RemoveAllExceptKeys(IEnumerable<TKey> keys);
}
}

10
ZeroLevel/Services/PartitionStorage/Interfaces/IStorePartitionBuilder.cs
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@ -1,5 +1,13 @@
namespace ZeroLevel.Services.PartitionStorage
using System.Collections.Generic;
namespace ZeroLevel.Services.PartitionStorage
{
public class InsertValue<TKey, TInput>
{
public TKey Key;
public TInput Value;
}
/// <summary>
/// Provides write operations in catalog partition
/// </summary>

17
ZeroLevel/Services/PartitionStorage/Options/CacheOptions.cs
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@ -1,17 +0,0 @@
namespace ZeroLevel.Services.PartitionStorage
{
public class CacheOptions
{
public bool UsePersistentCache { get; set; }
public string PersistentCacheFolder { get; set; } = "cachee";
public int PersistentCacheRemoveTimeoutInSeconds { get; set; } = 3600;
public bool UseMemoryCache { get; set; }
public int MemoryCacheLimitInMb { get; set; } = 1024;
public int MemoryCacheRemoveTimeoutInSeconds { get; set; } = 900;
}
}

17
ZeroLevel/Services/PartitionStorage/Options/StoreOptions.cs
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@ -47,12 +47,6 @@ namespace ZeroLevel.Services.PartitionStorage
FileIndexCount = 64
};
public CacheOptions Cache { get; set; } = new CacheOptions
{
UseMemoryCache = false,
UsePersistentCache = false
};
internal string GetFileName(TKey key, TMeta info)
{
return FilePartition.PathExtractor(key, info);
@ -89,16 +83,7 @@ namespace ZeroLevel.Services.PartitionStorage
Partitions = this.Partitions
.Select(p => new StoreCatalogPartition<TMeta>(p.Name, p.PathExtractor))
.ToList(),
RootFolder = this.RootFolder,
Cache = new CacheOptions
{
MemoryCacheLimitInMb = this.Cache.MemoryCacheLimitInMb,
MemoryCacheRemoveTimeoutInSeconds = this.Cache.MemoryCacheRemoveTimeoutInSeconds,
PersistentCacheFolder = this.Cache.PersistentCacheFolder,
PersistentCacheRemoveTimeoutInSeconds = this.Cache.PersistentCacheRemoveTimeoutInSeconds,
UseMemoryCache = this.Cache.UseMemoryCache,
UsePersistentCache = this.Cache.UsePersistentCache
}
RootFolder = this.RootFolder
};
return options;
}

21
ZeroLevel/Services/PartitionStorage/Partition/StoreMergePartitionAccessor.cs
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@ -20,6 +20,9 @@ namespace ZeroLevel.Services.PartitionStorage
/// Exists compressed catalog
/// </summary>
private readonly IStorePartitionAccessor<TKey, TInput, TValue> _accessor;
private readonly string _temporaryFolder;
/// <summary>
/// Write catalog
/// </summary>
@ -30,9 +33,9 @@ namespace ZeroLevel.Services.PartitionStorage
if (decompress == null) throw new ArgumentNullException(nameof(decompress));
_decompress = decompress;
_accessor = new StorePartitionAccessor<TKey, TInput, TValue, TMeta>(options, info);
var tempCatalog = Path.Combine(_accessor.GetCatalogPath(), Guid.NewGuid().ToString());
_temporaryFolder = Path.Combine(_accessor.GetCatalogPath(), Guid.NewGuid().ToString());
var tempOptions = options.Clone();
tempOptions.RootFolder = tempCatalog;
tempOptions.RootFolder = _temporaryFolder;
_temporaryAccessor = new StorePartitionBuilder<TKey, TInput, TValue, TMeta>(tempOptions, info);
}
@ -64,7 +67,7 @@ namespace ZeroLevel.Services.PartitionStorage
{
var newFiles = Directory.GetFiles(_temporaryAccessor.GetCatalogPath());
if (newFiles != null && newFiles.Length > 1)
if (newFiles != null && newFiles.Length > 0)
{
var folder = _accessor.GetCatalogPath();
var existsFiles = Directory.GetFiles(folder)
@ -85,17 +88,27 @@ namespace ZeroLevel.Services.PartitionStorage
}
}
}
}
(_temporaryAccessor as StorePartitionBuilder<TKey, TInput, TValue, TMeta>).CloseStreams();
// compress new file
foreach (var file in newFiles)
{
(_temporaryAccessor as StorePartitionBuilder<TKey, TInput, TValue, TMeta>)
.CompressFile(file);
}
// replace old file by new
foreach (var file in newFiles)
{
var name = Path.GetFileName(file);
File.Move(file, Path.Combine(folder, name), true);
}
}
// remove temporary files
_temporaryAccessor.DropData();
Directory.Delete(_temporaryAccessor.GetCatalogPath(), true);
Directory.Delete(_temporaryFolder, true);
}
/// <summary>

191
ZeroLevel/Services/PartitionStorage/Partition/StorePartitionAccessor.cs
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@ -87,7 +87,7 @@ namespace ZeroLevel.Services.PartitionStorage
public IEnumerable<StorePartitionKeyValueSearchResult<TKey, TValue>> Iterate()
{
var files = Directory.GetFiles(_catalog);
if (files != null && files.Length > 1)
if (files != null && files.Length > 0)
{
foreach (var file in files)
{
@ -126,7 +126,7 @@ namespace ZeroLevel.Services.PartitionStorage
var indexFolder = Path.Combine(_catalog, "__indexes__");
FSUtils.CleanAndTestFolder(indexFolder);
var files = Directory.GetFiles(_catalog);
if (files != null && files.Length > 1)
if (files != null && files.Length > 0)
{
var dict = new Dictionary<TKey, long>();
foreach (var file in files)
@ -251,5 +251,192 @@ namespace ZeroLevel.Services.PartitionStorage
public void Dispose()
{
}
public void RemoveAllExceptKey(TKey key)
{
RemoveAllExceptKeys(new[] { key });
}
public void RemoveAllExceptKeys(IEnumerable<TKey> keys)
{
var results = keys
.GroupBy(
k => _options.GetFileName(k, _info),
k => k, (key, g) => new { FileName = key, Keys = g.ToArray() });
foreach (var group in results)
{
RemoveKeyGroup(group.FileName, group.Keys, false);
}
}
public void RemoveKey(TKey key)
{
RemoveKeys(new[] { key });
}
public void RemoveKeys(IEnumerable<TKey> keys)
{
var results = keys
.GroupBy(
k => _options.GetFileName(k, _info),
k => k, (key, g) => new { FileName = key, Keys = g.ToArray() });
foreach (var group in results)
{
RemoveKeyGroup(group.FileName, group.Keys, true);
}
}
private void RemoveKeyGroup(string fileName, TKey[] keys, bool inverseRemove)
{
var filePath = Path.Combine(_catalog, fileName);
if (File.Exists(filePath))
{
// 1. Find ranges
var ranges = new List<FilePositionRange>();
if (_options.Index.Enabled)
{
var index = new StorePartitionSparseIndex<TKey, TMeta>(_catalog, _info, _options.FilePartition, _options.KeyComparer);
var offsets = index.GetOffset(keys, true);
using (var reader = GetReadStream(fileName))
{
for (int i = 0; i < keys.Length; i++)
{
var searchKey = keys[i];
var off = offsets[i];
reader.Stream.Seek(off.Offset, SeekOrigin.Begin);
while (reader.EOS == false)
{
var startPosition = reader.Stream.Position;
var k = reader.ReadCompatible<TKey>();
var v = reader.ReadCompatible<TValue>();
var endPosition = reader.Stream.Position;
var c = _options.KeyComparer(searchKey, k);
if (c == 0)
{
ranges.Add(new FilePositionRange { Start = startPosition, End = endPosition });
}
else if (c == -1)
{
break;
}
}
}
}
}
else
{
using (var reader = GetReadStream(fileName))
{
int index = 0;
var keys_arr = keys.OrderBy(k => k).ToArray();
while (reader.EOS == false && index < keys_arr.Length)
{
var startPosition = reader.Stream.Position;
var k = reader.ReadCompatible<TKey>();
var v = reader.ReadCompatible<TValue>();
var endPosition = reader.Stream.Position;
var c = _options.KeyComparer(keys_arr[index], k);
if (c == 0)
{
ranges.Add(new FilePositionRange { Start = startPosition, End = endPosition });
index++;
}
else if (c == -1)
{
do
{
index++;
if (index < keys_arr.Length)
{
c = _options.KeyComparer(keys_arr[index], k);
}
} while (index < keys_arr.Length && c == -1);
}
}
}
}
// 2. Temporary file from ranges
var tempPath = Path.GetTempPath();
var tempFile = Path.Combine(tempPath, Path.GetTempFileName());
using (var readStream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, 4096 * 1024))
{
RangeCompression(ranges);
using (var writeStream = new FileStream(tempFile, FileMode.Create, FileAccess.Write, FileShare.None, 4096 * 1024))
{
if (inverseRemove)
{
var inverted = RangeInversion(ranges, readStream.Length);
foreach (var range in inverted)
{
CopyRange(range, readStream, writeStream);
}
}
else
{
foreach (var range in ranges)
{
CopyRange(range, readStream, writeStream);
}
}
writeStream.Flush();
}
}
// 3. Replace from temporary to original
File.Move(tempFile, filePath, true);
}
}
private static void RangeCompression(List<FilePositionRange> ranges)
{
for (var i = 0; i < ranges.Count - 1; i++)
{
var current = ranges[i];
var next = ranges[i + 1];
if (current.End == next.Start)
{
current.End = next.End;
ranges.RemoveAt(i + 1);
i--;
}
}
}
private static List<FilePositionRange> RangeInversion(List<FilePositionRange> ranges, long length)
{
if ((ranges?.Count ?? 0) == 0) return new List<FilePositionRange> { new FilePositionRange { Start = 0, End = length } };
var inverted = new List<FilePositionRange>();
var current = new FilePositionRange { Start = 0, End = ranges[0].Start };
for (var i = 0; i < ranges.Count; i++)
{
current.End = ranges[i].Start;
if (current.Start != current.End)
{
inverted.Add(new FilePositionRange { Start = current.Start, End = current.End });
}
current.Start = ranges[i].End;
}
if (current.End != length)
{
if (current.Start != length)
{
inverted.Add(new FilePositionRange { Start = current.Start, End = length });
}
}
return inverted;
}
private static void CopyRange(FilePositionRange range, Stream source, Stream target)
{
source.Seek(range.Start, SeekOrigin.Begin);
var size = range.End - range.Start;
byte[] buffer = new byte[size];
source.Read(buffer, 0, buffer.Length);
target.Write(buffer, 0, buffer.Length);
}
}
}

30
ZeroLevel/Services/PartitionStorage/Partition/StorePartitionBuilder.cs
Unescape View File

@ -14,6 +14,7 @@ namespace ZeroLevel.Services.PartitionStorage
{
private readonly ConcurrentDictionary<string, MemoryStreamWriter> _writeStreams
= new ConcurrentDictionary<string, MemoryStreamWriter>();
private readonly StoreOptions<TKey, TInput, TValue, TMeta> _options;
private readonly string _catalog;
private readonly TMeta _info;
@ -44,17 +45,9 @@ namespace ZeroLevel.Services.PartitionStorage
}
public void CompleteAddingAndCompress()
{
// Close all write streams
foreach (var s in _writeStreams)
{
try
{
s.Value.Dispose();
}
catch { }
}
CloseStreams();
var files = Directory.GetFiles(_catalog);
if (files != null && files.Length > 1)
if (files != null && files.Length > 0)
{
Parallel.ForEach(files, file => CompressFile(file));
}
@ -66,7 +59,7 @@ namespace ZeroLevel.Services.PartitionStorage
var indexFolder = Path.Combine(_catalog, "__indexes__");
FSUtils.CleanAndTestFolder(indexFolder);
var files = Directory.GetFiles(_catalog);
if (files != null && files.Length > 1)
if (files != null && files.Length > 0)
{
var dict = new Dictionary<TKey, long>();
foreach (var file in files)
@ -104,6 +97,19 @@ namespace ZeroLevel.Services.PartitionStorage
}
#region Private methods
internal void CloseStreams()
{
// Close all write streams
foreach (var s in _writeStreams)
{
try
{
s.Value.Dispose();
}
catch { }
}
}
internal void CompressFile(string file)
{
var dict = new Dictionary<TKey, HashSet<TInput>>();
@ -154,7 +160,5 @@ namespace ZeroLevel.Services.PartitionStorage
public void Dispose()
{
}
}
}

8
ZeroLevel/Services/PartitionStorage/Store.cs
Unescape View File

@ -4,6 +4,7 @@ using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using ZeroLevel.Services.FileSystem;
namespace ZeroLevel.Services.PartitionStorage
{
@ -21,6 +22,13 @@ namespace ZeroLevel.Services.PartitionStorage
}
}
public void RemovePartition(TMeta info)
{
var partition = CreateAccessor(info);
partition.DropData();
FSUtils.RemoveFolder(partition.GetCatalogPath());
}
public IStorePartitionAccessor<TKey, TInput, TValue> CreateAccessor(TMeta info)
{
return new StorePartitionAccessor<TKey, TInput, TValue, TMeta>(_options, info);

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