yulei0824 opened a new issue #12287:
URL: https://github.com/apache/druid/issues/12287


   Can not find any druid tables after restarting all nodes in cluster
   
   ### Affected Version
   
   0.21.1
   
   ### Description
   
   Cluster information: 1 router, 2 coordinators, 3 brokers, 6 historicals, 
more than 900 tables.
   Each historical caches more than 300000 segments.
   Use the following procedures to restart this cluster:
   1. stop all nodes.
   2. start all historicals after setting property 
druid.segmentCache.lazyLoadOnStart to be true.
   3. start all coordinators.
   4. start all brokers.
   5. start one router.
   
   I cannot find any druid tables when opening the query page of router, and 
cannot run successfully any SQL queries.
   I get the following exception information when running "select * from t1 
limit 10": 
   org.apache.calcite.runtime.CalciteContextException: From line xxx, column xx 
to line xx, column xx: Object 't1' not found 
org.apache.calcite.tools.ValidationException
   
   I find the many exceptions at the broker logs:
   WARN [DruidSchema-Cache-0] org.apache.druid.sql.calcite.schema.DruidSchema - 
Metadata refresh failed, trying again soon. 
org.apache.druid.query.QueryTimeoutException: 
url[http://historical-ip:8083/druid/v2/] timedout........
   
   
   
   
   
   
   
   


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