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[qa] Change sync_blocks to pick smarter maxheight

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Instead of syncing to max height returned by the waitforblockheight RPC, sync
to the max height returned by the getblockcount RPC.

This change was suggested by Suhas Daftuar <sdaftuar@chaincode.com>.
This commit is contained in:
Russell Yanofsky 2016-11-11 15:46:14 -05:00
parent 67c6326abd
commit 1126c853d9
1 changed files with 8 additions and 6 deletions
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14
qa/rpc-tests/test_framework/util.py
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@ -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)))