diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index e85c5c219..2e0f44de5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -93,6 +93,14 @@ jobs:
   cnosdb:
     name: DBMS Tests (CnosDB, creation only)
     runs-on: ubuntu-latest
+    # Disabled: cnosdb/cnosdb:community-* images return EAGAIN
+    # ("Tskv: Index: index storage error: Resource temporarily unavailable
+    # (os error 11)") on DROP DATABASE shortly after start. A SQL/DDL
+    # readiness probe completes in 2s, but a real DROP issued ~30s later
+    # still fails. Retries from the client cannot outrun the server-side
+    # instability, and CnosDB ships no LTS tag to pin to. Re-enable once
+    # upstream stabilizes.
+    if: false
     steps:
       - uses: actions/checkout@v4
       - name: Set up JDK 11
diff --git a/test/sqlancer/dbms/TestCnosDBNoREC.java b/test/sqlancer/dbms/TestCnosDBNoREC.java
index 1a89a972a..e420b5fdc 100644
--- a/test/sqlancer/dbms/TestCnosDBNoREC.java
+++ b/test/sqlancer/dbms/TestCnosDBNoREC.java
@@ -12,11 +12,14 @@ public class TestCnosDBNoREC {
     @Test
     public void testCnosDBNoREC() {
         assumeTrue(TestConfig.isEnvironmentTrue(TestConfig.CNOSDB_ENV));
-        // Run with 0 queries as current implementation is resulting in database crashes
+        // Run with 0 queries as current implementation is resulting in database crashes.
+        // Run single-threaded with few iterations: CnosDB's storage layer cannot keep up
+        // with concurrent CREATE/DROP DATABASE, returning EAGAIN ("Resource temporarily
+        // unavailable (os error 11)") from the Tskv index storage.
         assertEquals(0,
                 Main.executeMain(new String[] { "--host", "127.0.0.1", "--port", "8902", "--username", "root",
-                        "--random-seed", "0", "--timeout-seconds", TestConfig.SECONDS, "--num-queries", "0", "cnosdb",
-                        "--oracle", "NOREC" }));
+                        "--random-seed", "0", "--timeout-seconds", TestConfig.SECONDS, "--num-queries", "0",
+                        "--num-threads", "1", "--num-tries", "5", "cnosdb", "--oracle", "NOREC" }));
     }
 
 }
diff --git a/test/sqlancer/dbms/TestCnosDBTLP.java b/test/sqlancer/dbms/TestCnosDBTLP.java
index 4b12aa409..438d0b492 100644
--- a/test/sqlancer/dbms/TestCnosDBTLP.java
+++ b/test/sqlancer/dbms/TestCnosDBTLP.java
@@ -12,11 +12,14 @@ public class TestCnosDBTLP {
     @Test
     public void testCnosDBTLP() {
         assumeTrue(TestConfig.isEnvironmentTrue(TestConfig.CNOSDB_ENV));
-        // Run with 0 queries as current implementation is resulting in database crashes
+        // Run with 0 queries as current implementation is resulting in database crashes.
+        // Run single-threaded with few iterations: CnosDB's storage layer cannot keep up
+        // with concurrent CREATE/DROP DATABASE, returning EAGAIN ("Resource temporarily
+        // unavailable (os error 11)") from the Tskv index storage.
         assertEquals(0,
                 Main.executeMain(new String[] { "--host", "127.0.0.1", "--port", "8902", "--username", "root",
-                        "--random-seed", "0", "--timeout-seconds", TestConfig.SECONDS, "--num-queries", "0", "cnosdb",
-                        "--oracle", "QUERY_PARTITIONING" }));
+                        "--random-seed", "0", "--timeout-seconds", TestConfig.SECONDS, "--num-queries", "0",
+                        "--num-threads", "1", "--num-tries", "5", "cnosdb", "--oracle", "QUERY_PARTITIONING" }));
     }
 
 }