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authorAlex <alex@adnab.me>2022-05-10 13:16:57 +0200
committerAlex <alex@adnab.me>2022-05-10 13:16:57 +0200
commit5768bf362262f78376af14517c4921941986192e (patch)
treeb4baf3051eade0f63649443278bb3a3f4c38ec25 /src/garage/tests/k2v/poll.rs
parentdef78c5e6f5da37a0d17b5652c525fbeccbc2e86 (diff)
downloadgarage-5768bf362262f78376af14517c4921941986192e.tar.gz
garage-5768bf362262f78376af14517c4921941986192e.zip
First implementation of K2V (#293)
**Specification:** View spec at [this URL](https://git.deuxfleurs.fr/Deuxfleurs/garage/src/branch/k2v/doc/drafts/k2v-spec.md) - [x] Specify the structure of K2V triples - [x] Specify the DVVS format used for causality detection - [x] Specify the K2V index (just a counter of number of values per partition key) - [x] Specify single-item endpoints: ReadItem, InsertItem, DeleteItem - [x] Specify index endpoint: ReadIndex - [x] Specify multi-item endpoints: InsertBatch, ReadBatch, DeleteBatch - [x] Move to JSON objects instead of tuples - [x] Specify endpoints for polling for updates on single values (PollItem) **Implementation:** - [x] Table for K2V items, causal contexts - [x] Indexing mechanism and table for K2V index - [x] Make API handlers a bit more generic - [x] K2V API endpoint - [x] K2V API router - [x] ReadItem - [x] InsertItem - [x] DeleteItem - [x] PollItem - [x] ReadIndex - [x] InsertBatch - [x] ReadBatch - [x] DeleteBatch **Testing:** - [x] Just a simple Python script that does some requests to check visually that things are going right (does not contain parsing of results or assertions on returned values) - [x] Actual tests: - [x] Adapt testing framework - [x] Simple test with InsertItem + ReadItem - [x] Test with several Insert/Read/DeleteItem + ReadIndex - [x] Test all combinations of return formats for ReadItem - [x] Test with ReadBatch, InsertBatch, DeleteBatch - [x] Test with PollItem - [x] Test error codes - [ ] Fix most broken stuff - [x] test PollItem broken randomly - [x] when invalid causality tokens are given, errors should be 4xx not 5xx **Improvements:** - [x] Descending range queries - [x] Specify - [x] Implement - [x] Add test - [x] Batch updates to index counter - [x] Put K2V behind `k2v` feature flag Co-authored-by: Alex Auvolat <alex@adnab.me> Reviewed-on: https://git.deuxfleurs.fr/Deuxfleurs/garage/pulls/293 Co-authored-by: Alex <alex@adnab.me> Co-committed-by: Alex <alex@adnab.me>
Diffstat (limited to 'src/garage/tests/k2v/poll.rs')
-rw-r--r--src/garage/tests/k2v/poll.rs98
1 files changed, 98 insertions, 0 deletions
diff --git a/src/garage/tests/k2v/poll.rs b/src/garage/tests/k2v/poll.rs
new file mode 100644
index 00000000..70dc0410
--- /dev/null
+++ b/src/garage/tests/k2v/poll.rs
@@ -0,0 +1,98 @@
+use hyper::Method;
+use std::time::Duration;
+
+use crate::common;
+
+#[tokio::test]
+async fn test_poll() {
+ let ctx = common::context();
+ let bucket = ctx.create_bucket("test-k2v-poll");
+
+ // Write initial value
+ let res = ctx
+ .k2v
+ .request
+ .builder(bucket.clone())
+ .method(Method::PUT)
+ .path("root")
+ .query_param("sort_key", Some("test1"))
+ .body(b"Initial value".to_vec())
+ .send()
+ .await
+ .unwrap();
+ assert_eq!(res.status(), 200);
+
+ // Retrieve initial value to get its causality token
+ let res2 = ctx
+ .k2v
+ .request
+ .builder(bucket.clone())
+ .path("root")
+ .query_param("sort_key", Some("test1"))
+ .signed_header("accept", "application/octet-stream")
+ .send()
+ .await
+ .unwrap();
+ assert_eq!(res2.status(), 200);
+ let ct = res2
+ .headers()
+ .get("x-garage-causality-token")
+ .unwrap()
+ .to_str()
+ .unwrap()
+ .to_string();
+
+ let res2_body = hyper::body::to_bytes(res2.into_body())
+ .await
+ .unwrap()
+ .to_vec();
+ assert_eq!(res2_body, b"Initial value");
+
+ // Start poll operation
+ let poll = {
+ let bucket = bucket.clone();
+ let ct = ct.clone();
+ tokio::spawn(async move {
+ let ctx = common::context();
+ ctx.k2v
+ .request
+ .builder(bucket.clone())
+ .path("root")
+ .query_param("sort_key", Some("test1"))
+ .query_param("causality_token", Some(ct))
+ .query_param("timeout", Some("10"))
+ .signed_header("accept", "application/octet-stream")
+ .send()
+ .await
+ })
+ };
+
+ // Write new value that supersedes initial one
+ let res = ctx
+ .k2v
+ .request
+ .builder(bucket.clone())
+ .method(Method::PUT)
+ .path("root")
+ .query_param("sort_key", Some("test1"))
+ .signed_header("x-garage-causality-token", ct)
+ .body(b"New value".to_vec())
+ .send()
+ .await
+ .unwrap();
+ assert_eq!(res.status(), 200);
+
+ // Check poll finishes with correct value
+ let poll_res = tokio::select! {
+ _ = tokio::time::sleep(Duration::from_secs(10)) => panic!("poll did not terminate in time"),
+ res = poll => res.unwrap().unwrap(),
+ };
+
+ assert_eq!(poll_res.status(), 200);
+
+ let poll_res_body = hyper::body::to_bytes(poll_res.into_body())
+ .await
+ .unwrap()
+ .to_vec();
+ assert_eq!(poll_res_body, b"New value");
+}