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Remove root path before adding to watches

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This commit is contained in:
hustnn 2020-09-16 16:32:37 +08:00
parent 76e0147bf4
commit 3a59a7d5b6
1 changed files with 16 additions and 1 deletions
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17
src/Common/ZooKeeper/ZooKeeperImpl.cpp
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@ -422,6 +422,18 @@ void ZooKeeperRequest::write(WriteBuffer & out) const
}
static void removeRootPath(String & path, const String & root_path)
{
if (root_path.empty())
return;
if (path.size() <= root_path.size())
throw Exception("Received path is not longer than root_path", Error::ZDATAINCONSISTENCY);
path = path.substr(root_path.size());
}
struct ZooKeeperResponse : virtual Response
{
virtual ~ZooKeeperResponse() override = default;
@ -1292,8 +1304,11 @@ void ZooKeeper::receiveEvent()
if (add_watch)
{
/// The key of wathces should exclude the root_path
String req_path = request_info.request->getPath();
removeRootPath(req_path, root_path);
std::lock_guard lock(watches_mutex);
watches[request_info.request->getPath()].emplace_back(std::move(request_info.watch));
watches[req_path].emplace_back(std::move(request_info.watch));
}
}