Hello, I am trying to execute hdfs fsck command and am getting below error:   [root@server1 root]# hdfs fsck / > /home/test/fsck_output_2-11-21 Connecting to namenode via http://server1.com:50070/fsck?ugi=hdfs&path=%2F Exception in thread "main" java.net.SocketTimeoutException: Read timed out at java.net.SocketInputStream.socketRead0(Native Method) at java.net.SocketInputStream.socketRead(SocketInputStream.java:116) at java.net.SocketInputStream.read(SocketInputStream.java:171) at java.net.SocketInputStream.read(SocketInputStream.java:141) at java.io.BufferedInputStream.fill(BufferedInputStream.java:246) at java.io.BufferedInputStream.read1(BufferedInputStream.java:286) at java.io.BufferedInputStream.read(BufferedInputStream.java:345) at sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:704) at sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:647) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1569) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474) at org.apache.hadoop.hdfs.tools.DFSck.doWork(DFSck.java:363) at org.apache.hadoop.hdfs.tools.DFSck.access$000(DFSck.java:72) at org.apache.hadoop.hdfs.tools.DFSck$1.run(DFSck.java:161) at org.apache.hadoop.hdfs.tools.DFSck$1.run(DFSck.java:158) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) at org.apache.hadoop.hdfs.tools.DFSck.run(DFSck.java:157) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90) at org.apache.hadoop.hdfs.tools.DFSck.main(DFSck.java:406)   Thanks wert ... View more

Hello, We were getting ‘DatabaseError: ORA-01017: invalid username/password; logon denied’ post our db upgrade, to fix that we have reset the hue password, which worked and that issue got fixed. Unfortunately one of our guys deleted a couple of logs from /var/log/hue. We have recreated runcpserver.log with the necessary permission, and restart Hue server, yet we fail to see the file being populated (file is still empty).   Request assistance / guidance in fixing this issue.   Thanks Wert ... View more

Hello, We have got our Domain renamed from ABC to XYZ.com. Since then neither Cloudera Manager UI nor any other service UI's are accessible. As per my understanding, we would need to update the /etc/hosts file of each node in the cluster to reflect the new Domain name. however it would be great if anyone could advise on the below 2 things: 1. Do we really need to get /etc/host/file updated, OR is it taken care by Cloudera 2. Where all do we need to update the hostnames with new Domain name to have a fully functional cluster back to operational status Currently if I manually enter the complete address (ip+new doamin name) I can login to Cloudera Manager UI but from Cloudera Manager when I try to open any service UI's like NN UI it fails.   Any help is much appreciated   Regards Wert ... View more

Hello, Would like some assistance/guidance on Kerberos. Our domain name has changed and since then our applications are unable to connect to Hadoop cluster. We are using MIT Kerberos.   Regards Wert ... View more

Hello,   I was using Cloudera Enterprise 5.16 (Trial) which is now downgraded to Cloudera Express, since then I am facing issues starting Reports Manager. I am using the default embedded database.   CM / CDH - 5.16.2     2020-09-06 14:14:29,706 INFO com.cloudera.enterprise.dbutil.DbUtil: Schema version table doesn't exist. 2020-09-06 14:14:29,711 INFO com.cloudera.enterprise.dbutil.DbUtil: Schema version table already exists. 2020-09-06 14:14:29,712 INFO com.cloudera.enterprise.dbutil.DbUtil: DB Schema version 4100. 2020-09-06 14:14:29,712 INFO com.cloudera.enterprise.dbutil.DbUtil: Current database schema version: 4100 2020-09-06 14:14:29,725 INFO com.cloudera.enterprise.ssl.SSLFactory: Using default java truststore for verification of server certificates in HTTPS communication. 2020-09-06 14:14:29,761 WARN com.cloudera.cmf.BasicScmProxy: Exception while getting fetch configDefaults hash: none java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:579) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:432) at sun.net.www.http.HttpClient.openServer(HttpClient.java:527) at sun.net.www.http.HttpClient.<init>(HttpClient.java:211) at sun.net.www.http.HttpClient.New(HttpClient.java:308) at sun.net.www.http.HttpClient.New(HttpClient.java:326) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:996) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:932) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:850) at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1091) at com.cloudera.cmf.BasicScmProxy.authenticate(BasicScmProxy.java:276) at com.cloudera.cmf.BasicScmProxy.fetch(BasicScmProxy.java:596) at com.cloudera.cmf.BasicScmProxy.getFragmentAndHash(BasicScmProxy.java:686) at com.cloudera.cmf.DescriptorAndFragments.newDescriptorAndFragments(DescriptorAndFragments.java:64) at com.cloudera.headlamp.HeadlampServer.<init>(HeadlampServer.java:143) at com.cloudera.headlamp.HeadlampServer.main(HeadlampServer.java:250) 2020-09-06 14:14:29,772 WARN com.cloudera.headlamp.HeadlampServer: No descriptor fetched from http://master-1.asia-southeast1-b.c.seismic-kingdom-265805.internal:7180 on after 1 tries, sleeping for 2 secs 2020-09-06 14:14:31,793 WARN com.cloudera.headlamp.HeadlampServer: No descriptor fetched from http://master-1.asia-southeast1-b.c.seismic-kingdom-265805.internal:7180 on after 2 tries, sleeping for 2 secs 2020-09-06 14:14:33,794 WARN com.cloudera.headlamp.HeadlampServer: No descriptor fetched from http://master-1.asia-southeast1-b.c.seismic-kingdom-265805.internal:7180 on after 3 tries, sleeping for 2 secs 2020-09-06 14:14:35,795 WARN com.cloudera.headlamp.HeadlampServer: No descriptor fetched from http://master-1.asia-southeast1-b.c.seismic-kingdom-265805.internal:7180 on after 4 tries, sleeping for 2 secs 2020-09-06 14:14:37,797 WARN com.cloudera.headlamp.HeadlampServer: No descriptor fetched from http://master-1.asia-southeast1-b.c.seismic-kingdom-265805.internal:7180 on after 5 tries, sleeping for 2 secs 2020-09-06 14:14:39,797 ERROR com.cloudera.headlamp.HeadlampServer: Could not fetch descriptor after 5 tries, exiting.       Appreciate any help.   ... View more

Hi, Due to space constraints, I would like to reduce the following settings in CM: 1. Maximum Number of Events in the Event Server Store-5000000 To 4000000 2. Event Server Max Log Size - 200MB To 100MB   Would like to know if this is can be done or would hamper CM services. Appreciate any assistance.   Thanks Wert   ... View more