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    <title>question Re: Kudu cluster - connection error in Archives of Support Questions (Read Only)</title>
    <link>https://community.cloudera.com/t5/Archives-of-Support-Questions/Kudu-cluster-connection-error/m-p/67959#M79279</link>
    <description>Seems it was ntp issue. Although, we did not see any clock synchronization related error.</description>
    <pubDate>Thu, 07 Jun 2018 09:28:10 GMT</pubDate>
    <dc:creator>O_O</dc:creator>
    <dc:date>2018-06-07T09:28:10Z</dc:date>
    <item>
      <title>Kudu cluster - connection error</title>
      <link>https://community.cloudera.com/t5/Archives-of-Support-Questions/Kudu-cluster-connection-error/m-p/67956#M79278</link>
      <description>&lt;P&gt;We are trying to set up a three node kudu cluster as part of a POC. Our nodes are have additional ppk-layer of authentication. We have manually installed hdfs,yarn and impala successfully and are working fine. We have 3 kudu masters- one on each node - and 3 kudu tservers - one on each node.&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;Contents of config files are :&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;/etc/default/kudu-master&lt;/P&gt;&lt;P&gt;export FLAGS_log_dir=/testpoc/hadoop_logs/kudu&lt;BR /&gt;export FLAGS_rpc_bind_addresses=0.0.0.0:7051&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;/etc/default/kudu-tserver&lt;/P&gt;&lt;P&gt;export FLAGS_log_dir=/testpoc/hadoop_logs/kudu&lt;BR /&gt;export FLAGS_rpc_bind_addresses=0.0.0.0:7050&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;/etc/kudu/conf/master.gflagfile&lt;/P&gt;&lt;P&gt;# Do not modify these two lines. If you wish to change these variables,&lt;BR /&gt;# modify them in /etc/default/kudu-master.&lt;BR /&gt;--fromenv=rpc_bind_addresses&lt;BR /&gt;--fromenv=log_dir&lt;BR /&gt;--master_addresses=***.**.**.**,***.**.**.**,***.**.**.**&lt;/P&gt;&lt;P&gt;--fs_wal_dir=/testpoc/kudu/master&lt;BR /&gt;--fs_data_dirs=/testpoc/kudu/master&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;/etc/kudu/conf/tserver.gflagfile&lt;/P&gt;&lt;P&gt;# Do not modify these two lines. If you wish to change these variables,&lt;BR /&gt;# modify them in /etc/default/kudu-tserver.&lt;BR /&gt;--fromenv=rpc_bind_addresses&lt;BR /&gt;--fromenv=log_dir&lt;BR /&gt;--master_addresses=***.**.**.**,***.**.**.**,***.**.**.**&lt;/P&gt;&lt;P&gt;--fs_wal_dir=/testpoc/kudu/tserver&lt;BR /&gt;--fs_data_dirs=/testpoc/kudu/tserver&lt;BR /&gt;--tserver_master_addrs=***.**.**.**,***.**.**.**,***.**.**.**&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;/etc/default/impala&lt;/P&gt;&lt;P&gt;IMPALA_CATALOG_SERVICE_HOST=***.**.**.**&lt;BR /&gt;IMPALA_STATE_STORE_HOST=***.**.**.**&lt;BR /&gt;IMPALA_STATE_STORE_PORT=24000&lt;BR /&gt;IMPALA_BACKEND_PORT=22000&lt;BR /&gt;IMPALA_LOG_DIR=/testpoc/hadoop_logs/impala&lt;BR /&gt;IMPALA_SCRATCH_DIR=/testpoc/impala_scratch_dir&lt;BR /&gt;KUDU_MASTER_HOSTS=***.**.**.**,***.**.**.**,***.**.**.**&lt;/P&gt;&lt;P&gt;IMPALA_CATALOG_ARGS=" -log_dir=${IMPALA_LOG_DIR} "&lt;BR /&gt;IMPALA_STATE_STORE_ARGS=" -log_dir=${IMPALA_LOG_DIR} -state_store_port=${IMPALA_STATE_STORE_PORT}"&lt;BR /&gt;IMPALA_SERVER_ARGS=" \&lt;BR /&gt;-log_dir=${IMPALA_LOG_DIR} \&lt;BR /&gt;-catalog_service_host=${IMPALA_CATALOG_SERVICE_HOST} \&lt;BR /&gt;-state_store_port=${IMPALA_STATE_STORE_PORT} \&lt;BR /&gt;-use_statestore \&lt;BR /&gt;-state_store_host=${IMPALA_STATE_STORE_HOST} \&lt;BR /&gt;-be_port=${IMPALA_BACKEND_PORT} \&lt;BR /&gt;-scratch_dirs=${IMPALA_SCRATCH_DIR} \&lt;BR /&gt;-kudu_master_hosts=${KUDU_MASTER_HOSTS}"&lt;/P&gt;&lt;P&gt;ENABLE_CORE_DUMPS=false&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;kudu-master.ERROR&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;PRE&gt;F0605 09:20:56.887897 23867 master_main.cc:74] Check failed: _s.ok() Bad status: Network error: error binding socket to ***.**.**.**:7051: Cannot assign requested address (error 99)&lt;/PRE&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;If we try to create a kudu table using impala shell, we get the following error:&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;PRE&gt;ERROR: ImpalaRuntimeException: Error creating Kudu table 'impala::testdb5.kudutesttab1'
CAUSED BY: NonRecoverableException: can not complete before timeout: KuduRpc(method=ListTables, tablet=null, attempt=94, DeadlineTracker(timeout=180000, elapsed=176832), Traces: [0ms] querying master, [49ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [84ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [85ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [87ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [92ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [105ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [118ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [127ms] querying master, [127ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [127ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [128ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [129ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [134ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [143ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [147ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [167ms] querying master, [167ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [167ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [167ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [168ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [171ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [179ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [180ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [187ms] querying master, [187ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [187ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [187ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [188ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [203ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [223ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [234ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [267ms] querying master, [267ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [267ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [268ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [269ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [279ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [304ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [318ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [326ms] querying master, [326ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [326ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [327ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [327ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [338ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [342ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [348ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [407ms] querying master, [407ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [407ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [408ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [409ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [421ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [435ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [436ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [466ms] querying master, [466ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [467ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [467ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [468ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [470ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [471ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [473ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [567ms] querying master, [567ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [567ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [568ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [569ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [582ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [584ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [613ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [646ms] querying master, [647ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [647ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [647ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [648ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [653ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [655ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [664ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [1626ms] querying master, [1626ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [1627ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [1627ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [1628ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [1629ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [1631ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [1632ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [1646ms] querying master, [1646ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [1647ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [1647ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA03:7051, [1648ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [1649ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA01:7051 response Network error: connection closed, [1650ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA03:7051 response Network error: connection closed, [1651ms] delaying RPC due to Service unavailable: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed, [5326ms] querying master, [5327ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA01:7051, [5327ms] Sub rpc: ConnectToMaster sending RPC to server master-TEST-POC-DATA02:7051, [5329ms] Sub rpc: ConnectToMaster received from server master-TEST-POC-DATA02:7051 response Network error: connection closed, [5329ms] trace too long, truncated)
CAUSED BY: NoLeaderFoundException: Master config (TEST-POC-DATA01:7051,TEST-POC-DATA02:7051,TEST-POC-DATA03:7051) has no leader. Exceptions received: org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed,org.apache.kudu.client.RecoverableException: connection closed
CAUSED BY: RecoverableException: connection closed



&lt;/PRE&gt;&lt;P&gt;Are we missing something here? Let&amp;nbsp;us know if more info is required.&lt;/P&gt;&lt;P&gt;Any kind of help is appreciated. Thanks.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Fri, 16 Sep 2022 13:18:49 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Archives-of-Support-Questions/Kudu-cluster-connection-error/m-p/67956#M79278</guid>
      <dc:creator>O_O</dc:creator>
      <dc:date>2022-09-16T13:18:49Z</dc:date>
    </item>
    <item>
      <title>Re: Kudu cluster - connection error</title>
      <link>https://community.cloudera.com/t5/Archives-of-Support-Questions/Kudu-cluster-connection-error/m-p/67959#M79279</link>
      <description>Seems it was ntp issue. Although, we did not see any clock synchronization related error.</description>
      <pubDate>Thu, 07 Jun 2018 09:28:10 GMT</pubDate>
      <guid>https://community.cloudera.com/t5/Archives-of-Support-Questions/Kudu-cluster-connection-error/m-p/67959#M79279</guid>
      <dc:creator>O_O</dc:creator>
      <dc:date>2018-06-07T09:28:10Z</dc:date>
    </item>
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