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Re: New datanode not starting (added to an existin...

by Rising Star in Support Questions
‎11-06-2016 02:18 PM
1 Kudo
‎11-06-2016 02:18 PM
1 Kudo
@Geoffrey Shelton Okot Here's how I got it working- The existing nodes had DN directory as /hadoopdisk and the new nodes had /newdisk (using profiles in Ambari config. able to override properties selectively) However later on I reverted the DN directory for all the nodes as /hadoopdisk and thats when I started to get the error log above. Resolution was that I removed the unused /newdisk directories from the new DNs. Not sure why in first place this seemed to cause any issues as the DN property was /hadoopdisk only. It seems somehow that the old DN property was causing the issue (in spite of being reverted back) till the time the unused directory existed. As soon as it was removed, voila !! ... View more

Re: New datanode not starting (added to an existin...

by Rising Star in Support Questions
‎11-04-2016 09:27 AM
‎11-04-2016 09:27 AM
Its resolved now. ... View more

Re: New datanode not starting (added to an existin...

by Rising Star in Support Questions
‎11-03-2016 11:00 AM
‎11-03-2016 11:00 AM
Have already checked that ClusterIds for NN/DN are matching. Also have tried to delete the DN data folder and recreated using 'hdfs datanode'. ... View more

New datanode not starting (added to an existing cl...

by Rising Star in Support Questions
‎11-03-2016 10:56 AM
‎11-03-2016 10:56 AM
Using Ambari on a perfectly running and working HDP cluster (v 2.4), tried to add a new host with Datanode service. However on starting the new DN it starts only for 2-3 seconds and then stops. Ambari also shows the "DataNodes Live" widget as 3/4. PS-Have used the same DataNode directories setting on all the 3 existing as well as the newly added node. Following are the logs from the DN that is not starting: [root@node08 data]# tail -50 /var/log/hadoop/hdfs/hadoop-hdfs-datanode-node08.log 2016-11-03 06:29:01,769 INFO ipc.Server (Server.java:run(906)) - IPC Server Responder: starting 2016-11-03 06:29:01,769 INFO ipc.Server (Server.java:run(746)) - IPC Server listener on 8010: starting 2016-11-03 06:29:02,001 INFO common.Storage (Storage.java:tryLock(715)) - Lock on /hadoopdisk/hadoop/hdfs/data/in_use.lock acquired by nodename 9074@node08.int.xyz.com 2016-11-03 06:29:02,048 INFO common.Storage (BlockPoolSliceStorage.java:recoverTransitionRead(241)) - Analyzing storage directories for bpid BP-1435709756-10.131.138.24-1461308845727 2016-11-03 06:29:02,049 INFO common.Storage (Storage.java:lock(675)) - Locking is disabled for /hadoopdisk/hadoop/hdfs/data/current/BP-1435709756-10.131.138.24-1461308845727 2016-11-03 06:29:02,051 INFO datanode.DataNode (DataNode.java:initStorage(1402)) - Setting up storage: nsid=1525277556;bpid=BP-1435709756-10.131.138.24-1461308845727;lv=-56;nsInfo=lv=-63;cid=CID-95c88273-9764-4b48-8453-8cbc07cffc8b;nsid=1525277556;c=0;bpid=BP-1435709756-10.131.138.24-1461308845727;dnuuid=c06d42e7-c0be-458c-a494-015e472b3b49 2016-11-03 06:29:02,065 INFO common.Storage (DataStorage.java:addStorageLocations(379)) - Storage directory [DISK]file:/hadoopdisk/hadoop/hdfs/data/ has already been used. 2016-11-03 06:29:02,100 INFO common.Storage (BlockPoolSliceStorage.java:recoverTransitionRead(241)) - Analyzing storage directories for bpid BP-1435709756-10.131.138.24-1461308845727 2016-11-03 06:29:02,101 WARN common.Storage (BlockPoolSliceStorage.java:loadBpStorageDirectories(219)) - Failed to analyze storage directories for block pool BP-1435709756-10.131.138.24-1461308845727 java.io.IOException: BlockPoolSliceStorage.recoverTransitionRead: attempt to load an used block storage: /hadoopdisk/hadoop/hdfs/data/current/BP-1435709756-10.131.138.24-1461308845727 at org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage.loadBpStorageDirectories(BlockPoolSliceStorage.java:210) at org.apache.hadoop.hdfs.server.datanode.BlockPoolSliceStorage.recoverTransitionRead(BlockPoolSliceStorage.java:242) at org.apache.hadoop.hdfs.server.datanode.DataStorage.addStorageLocations(DataStorage.java:394) at org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:476) at org.apache.hadoop.hdfs.server.datanode.DataNode.initStorage(DataNode.java:1399) at org.apache.hadoop.hdfs.server.datanode.DataNode.initBlockPool(DataNode.java:1364) at org.apache.hadoop.hdfs.server.datanode.BPOfferService.verifyAndSetNamespaceInfo(BPOfferService.java:317) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:224) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:821) at java.lang.Thread.run(Thread.java:745) 2016-11-03 06:29:02,103 WARN common.Storage (DataStorage.java:addStorageLocations(397)) - Failed to add storage for block pool: BP-1435709756-10.131.138.24-1461308845727 : BlockPoolSliceStorage.recoverTransitionRead: attempt to load an used block storage: /hadoopdisk/hadoop/hdfs/data/current/BP-1435709756-10.131.138.24-1461308845727 2016-11-03 06:29:02,104 FATAL datanode.DataNode (BPServiceActor.java:run(833)) - Initialization failed for Block pool <registering> (Datanode Uuid c06d42e7-c0be-458c-a494-015e472b3b49) service to node04.int.xyz.com/10.131.138.27:8020. Exiting. java.io.IOException: All specified directories are failed to load. at org.apache.hadoop.hdfs.server.datanode.DataStorage.recoverTransitionRead(DataStorage.java:477) at org.apache.hadoop.hdfs.server.datanode.DataNode.initStorage(DataNode.java:1399) at org.apache.hadoop.hdfs.server.datanode.DataNode.initBlockPool(DataNode.java:1364) at org.apache.hadoop.hdfs.server.datanode.BPOfferService.verifyAndSetNamespaceInfo(BPOfferService.java:317) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:224) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:821) at java.lang.Thread.run(Thread.java:745) 2016-11-03 06:29:02,104 FATAL datanode.DataNode (BPServiceActor.java:run(833)) - Initialization failed for Block pool <registering> (Datanode Uuid c06d42e7-c0be-458c-a494-015e472b3b49) service to node03.int.xyz.com/10.131.138.24:8020. Exiting. org.apache.hadoop.util.DiskChecker$DiskErrorException: Invalid volume failure config value: 1 at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl.<init>(FsDatasetImpl.java:285) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetFactory.newInstance(FsDatasetFactory.java:34) at org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetFactory.newInstance(FsDatasetFactory.java:30) at org.apache.hadoop.hdfs.server.datanode.DataNode.initStorage(DataNode.java:1412) at org.apache.hadoop.hdfs.server.datanode.DataNode.initBlockPool(DataNode.java:1364) at org.apache.hadoop.hdfs.server.datanode.BPOfferService.verifyAndSetNamespaceInfo(BPOfferService.java:317) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.connectToNNAndHandshake(BPServiceActor.java:224) at org.apache.hadoop.hdfs.server.datanode.BPServiceActor.run(BPServiceActor.java:821) at java.lang.Thread.run(Thread.java:745) 2016-11-03 06:29:02,104 WARN datanode.DataNode (BPServiceActor.java:run(854)) - Ending block pool service for: Block pool <registering> (Datanode Uuid c06d42e7-c0be-458c-a494-015e472b3b49) service to node04.int.xyz.com/10.131.138.27:8020 2016-11-03 06:29:02,104 WARN datanode.DataNode (BPServiceActor.java:run(854)) - Ending block pool service for: Block pool <registering> (Datanode Uuid c06d42e7-c0be-458c-a494-015e472b3b49) service to node03.int.xyz.com/10.131.138.24:8020 2016-11-03 06:29:02,208 INFO datanode.DataNode (BlockPoolManager.java:remove(103)) - Removed Block pool <registering> (Datanode Uuid c06d42e7-c0be-458c-a494-015e472b3b49) 2016-11-03 06:29:04,208 WARN datanode.DataNode (DataNode.java:secureMain(2540)) - Exiting Datanode 2016-11-03 06:29:04,212 INFO util.ExitUtil (ExitUtil.java:terminate(124)) - Exiting with status 0 2016-11-03 06:29:04,214 INFO datanode.DataNode (LogAdapter.java:info(45)) - SHUTDOWN_MSG: /************************************************************ SHUTDOWN_MSG: Shutting down DataNode at node08.int.xyz.com/10.131.137.96 ************************************************************/ ... 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How to add OR modify comment for an existing hive ...

by Rising Star in Support Questions
‎10-25-2016 05:53 AM
‎10-25-2016 05:53 AM
After creating a table in Hive is it possible to modify the "comment" shown in highlight in attached screenshot? Also for a table without any comment key field, is it possible to add the comment value? ... View more
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Re: Whats the way to Associate technical & busines...

by Rising Star in Support Questions
‎07-19-2016 04:43 AM
‎07-19-2016 04:43 AM
@Vadim Can you please point me to steps etc. of how to achieve it- associate business metadata to technical metadata e.g. how can I associate tag "This is employee table" with technical metadata HIVE_TABLE Employee? Similarly also need to have a data dictionary/definition for each column. Is this done through APIs after ingestion? How to achieve it? ... View more

Re: Ranger HDFS policy not taking effect even afte...

by Rising Star in Support Questions
‎05-12-2016 12:33 PM
‎05-12-2016 12:33 PM
@Ana Gillan @Sagar Shimpi Thanks, got partial resolution. Ranger Hive plugin applies only to Hiveserver2 and not to CLI. But in below mentioned hive table file, how user mktg1 is able to query it using HIVE CLI? [hive@sandbox ~]$ hadoop fs -ls /apps/hive/warehouse/xademo.db/customer_details/acct.txt ---------- 3 hive hdfs 1532 2016-03-14 14:52 /apps/hive/warehouse/xademo.db/customer_details/acct.txt [mktg1@sandbox ~]$ hive hive> use xademo; OK Time taken: 1.737 seconds hive> select * from customer_details limit 10; OK PHONE_NUM PLAN REC_DATE STAUS BALANCE IMEI REGION 5553947406 6290 20130328 31 0 012565003040464 R06 7622112093 2316 20120625 21 28 359896046017644 R02 5092111043 6389 20120610 21 293 012974008373781 R06 9392254909 4002 20110611 21 178 357004045763373 R04 7783343634 2276 20121214 31 0 354643051707734 R02 5534292073 6389 20120223 31 83 359896040168211 R06 9227087403 4096 20081010 31 35 356927012514661 R04 9226203167 4060 20060527 21 450 010589003666377 R04 9221154050 4107 20100811 31 3 358665019197977 R04 Time taken: 6.467 seconds, Fetched: 10 row(s) ... View more

Ranger HDFS policy not taking effect even after re...

by Rising Star in Support Questions
‎05-11-2016 12:06 PM
1 Kudo
‎05-11-2016 12:06 PM
1 Kudo
Steps done: Disabled “HDFS Global Allow”. Created new policy for Marketing group (Read/Execute enabled) "/apps/hive/warehouse/xademo.db/customer_details PS- Policy sync successful as checked in Ranger->Audit->Plugins Problem User from a different group (e.g. user it1 user from IT group) was freely able to drop the Hive table "customer_details" Troubleshooting done so far: hadoop fs -ls /apps/hive/warehouse/xademo.db drwxrwxrwx - hive hdfs 0 2016-03-14 14:52 /apps/hive/warehouse/xademo.db/customer_details It seems HDFS permissions is taking precedence over Ranger policies? ... View more
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Re: Ranger-LDAP integration

by Rising Star in Support Questions
‎05-10-2016 11:16 AM
‎05-10-2016 11:16 AM
Yes able to see "atewari" use in Ranger UI. Thanks. ... View more

Re: Ranger-LDAP integration

by Rising Star in Support Questions
‎05-10-2016 04:00 AM
‎05-10-2016 04:00 AM
@Sagar Shimpi username/password are correct. How to login in Ranger from cli? Usersync.log as below. Didnt find xa-portal.log PS- So far have HDP sandbox setup (with openldap). Not using openldap for domain login. [root@sandbox ~]# tail -f /usr/hdp/current/ranger-usersync/logs/usersync.log 09 May 2016 09:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - LDAPUserGroupBuilder.updateSink() completed with user count: 2 09 May 2016 09:53:04 INFO UserGroupSync [UnixUserSyncThread] - End: update user/group from source==>sink 09 May 2016 10:53:04 INFO UserGroupSync [UnixUserSyncThread] - Begin: update user/group from source==>sink 09 May 2016 10:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - LDAPUserGroupBuilder updateSink started 09 May 2016 10:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - LdapUserGroupBuilder initialization started 09 May 2016 10:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - LdapUserGroupBuilder initialization completed with -- ldapUrl: ldap://localhost:389, ldapBindDn: cn=Manager,dc=my-domain,dc=com, ldapBindPassword: ***** , ldapAuthenticationMechanism: simple, searchBase: dc=my-domain,dc=com, userSearchBase: ou=users,dc=my-domain,dc=com, userSearchScope: 2, userObjectClass: person, userSearchFilter: , extendedUserSearchFilter: (objectclass=person), userNameAttribute: uid, userSearchAttributes: [uid, ismemberof, memberof], userGroupNameAttributeSet: [ismemberof, memberof], pagedResultsEnabled: true, pagedResultsSize: 500, groupSearchEnabled: false, groupSearchBase: dc=my-domain,dc=com, groupSearchScope: 2, groupObjectClass: groupofnames, groupSearchFilter: *, extendedGroupSearchFilter: (&(objectclass=groupofnames)(*)(member={0})), extendedAllGroupsSearchFilter: (&(objectclass=groupofnames)(*)), groupMemberAttributeName: member, groupNameAttribute: cn, groupUserMapSyncEnabled: false, ldapReferral: ignore 09 May 2016 10:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - Updating user count: 1, userName: atewari, groupList: [] 09 May 2016 10:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - Updating user count: 2, userName: sbansal, groupList: [] 09 May 2016 10:53:04 INFO LdapUserGroupBuilder [UnixUserSyncThread] - LDAPUserGroupBuilder.updateSink() completed with user count: 2 09 May 2016 10:53:04 INFO UserGroupSync [UnixUserSyncThread] - End: update user/group from source==>sink ... View more
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