Set heartbeat interval for chaos test

pageserver/client/src/page_service.rs

@@ -60,7 +60,7 @@ impl Client {
     ) -> anyhow::Result<PagestreamClient> {
         let copy_both: tokio_postgres::CopyBothDuplex<bytes::Bytes> = self
             .client
-            .copy_both_simple(&format!("pagestream_v2 {tenant_id} {timeline_id}"))
+            .copy_both_simple(&format!("pagestream_v3 {tenant_id} {timeline_id}"))
             .await?;
         let Client {
             cancel_on_client_drop,

pageserver/pagebench/src/cmd/getpage_latest_lsn.rs

@@ -322,6 +322,7 @@ async fn main_impl(
                         .to_rel_block()
                         .expect("we filter non-rel-block keys out above");
                     PagestreamGetPageRequest {
+                        reqid: 0,
                         request_lsn: if rng.gen_bool(args.req_latest_probability) {
                             Lsn::MAX
                         } else {

pageserver/src/metrics.rs

@@ -1845,6 +1845,7 @@ pub(crate) static LIVE_CONNECTIONS: Lazy<IntCounterPairVec> = Lazy::new(|| {
 
 #[derive(Clone, Copy, enum_map::Enum, IntoStaticStr)]
 pub(crate) enum ComputeCommandKind {
+    PageStreamV3,
     PageStreamV2,
     Basebackup,
     Fullbackup,