我是clickhouse的新手，因此在我的系统中，我反复看到这个问题：
{}\u003cerror\u003e void db:：asynchronousmetrics:：update（）：无法获取表的副本延迟：人员：代码：242，e.displaytext（）=db:：exception:表处于只读模式，堆栈跟踪：
我可以看到我的zookeeper状态不好，所以从clickhouse的文档来看，似乎这两者都有关系
zookeeper中的元数据被删除了
clickhouse要上来的时候zookeeper还没起来。
无论哪种方式，我都希望从错误中恢复，并建议以下步骤：
a） 要开始恢复，请在zookeeper中创建节点/路径到表/副本名称/标志/强制还原包含任何内容的数据，或运行命令还原所有复制的表：

sudo -u clickhouse touch /var/lib/clickhouse/flags/force_restore_data

然后重新启动服务器。启动时，服务器删除这些标志并开始恢复。
但是我不明白我应该在哪里运行这个命令，我查看了clickhouse容器下的位置 /var/lib/clickhouse 目录中没有标志。我应该先创建它吗？？
还有没有一种方法可以从这个错误中恢复而不重新启动服务器，我宁愿避免容器重新启动？？
在只读异常之前附加少量相关日志：

2020.06.19 16:49:02.789216 [ 13 ] {} <Error> DB_0.people (ReplicatedMergeTreeRestartingThread): Couldn't start replication: Replica /clickhouse/tables/shard_0/people/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/people/replicas/replica_0732646014/is_active manually, DB::Exception: Replica /clickhouse/tables/shard_0/people/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/people/replicas/replica_0732646014/is_active manually, stack trace:

2020.06.19 16:49:13.576855 [ 17 ] {} <Error> DB_0.school (ReplicatedMergeTreeRestartingThread): Couldn't start replication: Replica /clickhouse/tables/shard_0/school/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/school/replicas/replica_0732646014/is_active manually, DB::Exception: Replica /clickhouse/tables/shard_0/school/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/school/replicas/replica_0732646014/is_active manually, stack trace:

2020.06.19 16:49:23.497824 [ 19 ] {} <Error> DB_0.people (ReplicatedMergeTreeRestartingThread): Couldn't start replication: Replica /clickhouse/tables/shard_0/people/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/people/replicas/replica_0732646014/is_active manually, DB::Exception: Replica /clickhouse/tables/shard_0/people/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/people/replicas/replica_0732646014/is_active manually, stack trace:

2020.06.19 16:49:23.665089 [ 20 ] {} <Error> DB_0.school (ReplicatedMergeTreeRestartingThread): Couldn't start replication: Replica /clickhouse/tables/shard_0/school/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/school/replicas/replica_0732646014/is_active manually, DB::Exception: Replica /clickhouse/tables/shard_0/school/replicas/replica_0732646014 appears to be already active. If you're sure it's not, try again in a minute or remove znode /clickhouse/tables/shard_0/school/replicas/replica_0732646014/is_active manually, stack trace:

2020.06.19 16:49:59.703591 [ 41 ] {} <Error> void Coordination::ZooKeeper::receiveThread(): Code: 999, e.displayText() = Coordination::Exception: Operation timeout (no response) for path: /clickhouse/tables/shard_0/school/blocks (Operation timeout), Stack trace:

2020.06.19 16:49:59.847751 [ 18 ] {} <Error> DB_0.people: void DB::StorageReplicatedMergeTree::queueUpdatingTask(): Code: 999, e.displayText() = Coordination::Exception: Connection loss, path: /clickhouse/tables/shard_0/people/mutations, Stack trace:

2020.06.19 16:50:00.205911 [ 19 ] {} <Warning> DB_0.school (ReplicatedMergeTreeRestartingThread): ZooKeeper session has expired. Switching to a new session.
2020.06.19 16:50:00.315063 [ 19 ] {} <Error> zkutil::EphemeralNodeHolder::~EphemeralNodeHolder(): Code: 999, e.displayText() = Coordination::Exception: Session expired (Session expired), Stack trace:

2020.06.19 16:50:00.338176 [ 15 ] {} <Error> DB_0.people: void DB::StorageReplicatedMergeTree::mergeSelectingTask(): Code: 999, e.displayText() = Coordination::Exception: Session expired (Session expired), Stack trace:

2020.06.19 16:50:00.387589 [ 16 ] {} <Error> DB_0.school: void DB::StorageReplicatedMergeTree::mergeSelectingTask(): Code: 999, e.displayText() = Coordination::Exception: Connection loss, path: /clickhouse/tables/shard_0/school/log, Stack trace:

2020.06.19 16:50:00.512689 [ 17 ] {} <Error> zkutil::EphemeralNodeHolder::~EphemeralNodeHolder(): Code: 999, e.displayText() = Coordination::Exception: Session expired (Session expired), Stack trace:

2020.06.19 16:50:20.753596 [ 47 ] {} <Error> void DB::DDLWorker::runMainThread(): Code: 999, e.displayText() = Coordination::Exception: All connection tries failed while connecting to ZooKeeper. Addresses: 172.16.0.28:2181
Poco::Exception. Code: 1000, e.code() = 0, e.displayText() = Timeout: connect timed out: 172.16.0.28:2181 (version 19.13.1.11 (official build)), 172.16.0.28:2181
Code: 209, e.displayText() = DB::NetException: Timeout exceeded while reading from socket (172.16.0.28:2181): while receiving handshake from ZooKeeper (version 19.13.1.11 (official build)), 172.16.0.28:2181
Code: 209, e.displayText() = DB::NetException: Timeout exceeded while reading from socket (172.16.0.28:2181): while receiving handshake from ZooKeeper (version 19.13.1.11 (official build)), 172.16.0.28:2181
 (Connection loss), Stack trace:

2020.06.19 16:50:31.499775 [ 51 ] {} <Error> void DB::AsynchronousMetrics::update(): Cannot get replica delay for table: DB_0.people: Code: 242, e.displayText() = DB::Exception: Table is in readonly mode, Stack trace:

编辑：我确实找到了存在标志的文件夹（它存在于我的卷/repo/data中），但是当我尝试运行命令时

sudo -u clickhouse touch /repo/data/flags/force_restore_data

我知道了：

Use one of the following commands:
clickhouse local [args] 
clickhouse client [args] 
clickhouse benchmark [args] 
clickhouse server [args] 
clickhouse extract-from-config [args] 
clickhouse compressor [args] 
clickhouse format [args] 
clickhouse copier [args] 
clickhouse obfuscator [args]