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-rw-r--r--qa/rpc-tests/test_framework/util.py14
1 files changed, 8 insertions, 6 deletions
diff --git a/qa/rpc-tests/test_framework/util.py b/qa/rpc-tests/test_framework/util.py
index bf13b7fd84..1923ca8977 100644
--- a/qa/rpc-tests/test_framework/util.py
+++ b/qa/rpc-tests/test_framework/util.py
@@ -129,17 +129,19 @@ def sync_blocks(rpc_connections, *, wait=1, timeout=60):
one node already synced to the latest, stable tip, otherwise there's a
chance it might return before all nodes are stably synced.
"""
- maxheight = 0
+ # Use getblockcount() instead of waitforblockheight() to determine the
+ # initial max height because the two RPCs look at different internal global
+ # variables (chainActive vs latestBlock) and the former gets updated
+ # earlier.
+ maxheight = max(x.getblockcount() for x in rpc_connections)
start_time = cur_time = time.time()
while cur_time <= start_time + timeout:
tips = [r.waitforblockheight(maxheight, int(wait * 1000)) for r in rpc_connections]
- heights = [t["height"] for t in tips]
- if all(t == tips[0] for t in tips):
- return
- if all(h == heights[0] for h in heights):
+ if all(t["height"] == maxheight for t in tips):
+ if all(t["hash"] == tips[0]["hash"] for t in tips):
+ return
raise AssertionError("Block sync failed, mismatched block hashes:{}".format(
"".join("\n {!r}".format(tip) for tip in tips)))
- maxheight = max(heights)
cur_time = time.time()
raise AssertionError("Block sync to height {} timed out:{}".format(
maxheight, "".join("\n {!r}".format(tip) for tip in tips)))