feat(cubestore): Support eviction for cache (#7034)

Author: ovr

rust/cubestore/Cargo.lock

@@ -34,7 +34,7 @@ csv = "1.1.3"
 bytes = "0.5.4"
 serde_json = "1.0.56"
 futures = "0.3.26"
-smallvec = "1.8.0"
+smallvec = "1.11.0"
 flexbuffers = "0.1.1"
 byteorder = "1.3.4"
 log = "=0.4.11"
@@ -53,7 +53,7 @@ chrono-tz = "0.8.2"
 lazy_static = "1.4.0"
 mockall = "0.8.1"
 async-std = "0.99"
-itertools = "0.9.0"
+itertools = "0.11.0"
 bigdecimal = { version = "0.2.0", features = ["serde"] }
 rust-s3 = "0.26.3"
 aws-creds = "0.24.1"

rust/cubestore/cubestore/Cargo.toml

@@ -24,7 +24,6 @@ pub static CACHE_QUERY_TIME_MS: Histogram = metrics::histogram("cs.sql.query.cac
 /// Incoming queue queries.
 pub static QUEUE_QUERIES: Counter = metrics::counter("cs.sql.query.queue");
 pub static QUEUE_QUERY_TIME_MS: Histogram = metrics::histogram("cs.sql.query.queue.ms");
-
 pub static STREAMING_ROWS_READ: Counter = metrics::counter("cs.streaming.rows");
 pub static STREAMING_CHUNKS_READ: Counter = metrics::counter("cs.streaming.chunks");
 pub static STREAMING_LASTOFFSET: Gauge = metrics::gauge("cs.streaming.lastoffset");
@@ -68,3 +67,12 @@ pub static REMOTE_FS_OPERATION_CORE: Counter = metrics::counter("cs.remote_fs.op
 pub static REMOTE_FS_FILES_TO_REMOVE: Gauge = metrics::gauge("cs.remote_fs.files_to_remove.count");
 pub static REMOTE_FS_FILES_SIZE_TO_REMOVE: Gauge =
     metrics::gauge("cs.remote_fs.files_to_remove.size");
+
+/// Cache Store Cache
+pub static CACHESTORE_TTL_PERSIST: Counter = metrics::counter("cs.cachestore.ttl.persist");
+pub static CACHESTORE_TTL_BUFFER: Gauge = metrics::gauge("cs.cachestore.ttl.buffer");
+// Cache Store Eviction
+pub static CACHESTORE_EVICTION_REMOVED_KEYS: Counter =
+    metrics::counter("cs.cachestore.eviction.removed.keys");
+pub static CACHESTORE_EVICTION_REMOVED_SIZE: Counter =
+    metrics::counter("cs.cachestore.eviction.removed.size");