Added support to expire specfic member of a sorted set

libs/host/Configuration/Options.cs

@@ -239,6 +239,10 @@ internal sealed class Options
         [Option("hcollect-freq", Required = false, HelpText = "Frequency in seconds for the background task to perform Hash collection. 0 = disabled. Hash collect is used to delete expired fields from hash without waiting for a write operation. Use the HCOLLECT API to collect on-demand.")]
         public int HashCollectFrequencySecs { get; set; }
 
+        [IntRangeValidation(0, int.MaxValue)]
+        [Option("zcollect-freq", Required = false, HelpText = "Frequency in seconds for the background task to perform Sorted Set collection. 0 = disabled. Sorted Set collect is used to delete expired members from Sorted Set without waiting for a write operation. Use the ZCOLLECT API to collect on-demand.")]
+        public int SortedSetCollectFrequencySecs { get; set; }
+
         [Option("compaction-type", Required = false, HelpText = "Hybrid log compaction type. Value options: None - no compaction, Shift - shift begin address without compaction (data loss), Scan - scan old pages and move live records to tail (no data loss), Lookup - lookup each record in compaction range, for record liveness checking using hash chain (no data loss)")]
         public LogCompactionType CompactionType { get; set; }
 
@@ -714,6 +718,7 @@ public GarnetServerOptions GetServerOptions(ILogger logger = null)
                 AofSizeLimit = AofSizeLimit,
                 CompactionFrequencySecs = CompactionFrequencySecs,
                 HashCollectFrequencySecs = HashCollectFrequencySecs,
+                SortedSetCollectFrequencySecs = SortedSetCollectFrequencySecs,
                 CompactionType = CompactionType,
                 CompactionForceDelete = CompactionForceDelete.GetValueOrDefault(),
                 CompactionMaxSegments = CompactionMaxSegments,

libs/host/defaults.conf

@@ -165,6 +165,9 @@
 	/* Frequency in seconds for the background task to perform Hash collection. 0 = disabled. Hash collect is used to delete expired fields from hash without waiting for a write operation. Use the HCOLLECT API to collect on-demand. */
 	"HashCollectFrequencySecs" : 0,
 
+	/* Frequency in seconds for the background task to perform Sorted Set collection. 0 = disabled. Sorted Set collect is used to delete expired members from Sorted Set without waiting for a write operation. Use the HCOLLECT API to collect on-demand. */
+	"SortedSetCollectFrequencySecs" : 0,
+
 	/* Hybrid log compaction type. Value options: */ 
 	/*  None - no compaction */
 	/*  Shift - shift begin address without compaction (data loss) */