I've tried to set a value at a time and restart CM. Nothing changes It seems to be a known bug on that CDH release Had the opportunity to open a SR through my customer's account and support answered that the message can be dismissed Thanks for your answers ... View more

Hi. I've a file with 128Mb block size I'd like to change an existing file's blocksize using: hdfs dfs -mv /user/myfile.txt /tmp hdfs dfs -D dfs.blocksize=268435456 -cp /tmp/myfile.txt /user It works When I try to use a distcp, with -p to preserve original file's attributes, target file's blocksize doesn't change hadoop distcp -p -D dfs.block.size=268435456 /tmp/myfile.txt /user/myfile.txt Can't understand where am I wrong   ... View more

Hi. Has your client machine a valid kerberos client setup? Is it's krb5.ini, or krb5.conf for windows machines, coherent with underlying kerberos server setup?   Stefano ... View more

Thanks Zol.   ... View more

Thanks for your answer, below the details.   I am running Hive and Impala on CDH 6.1.1   I've set those parameters: SET hive.support.concurrency = true; SET hive.exec.dynamic.partition.mode = nonstrict; set hive.compactor.initiator.on = true; set hive.compactor.worker.threads = 1; set hive.txn.manager = org.apache.hadoop.hive.ql.lockmgr.DbTxnManager; Then I've created a sample table: CREATE TABLE MYDIM (key int, name string, zip string, is_current boolean) CLUSTERED BY (key) INTO 3 BUCKETS STORED AS ORC TBLPROPERTIES ('transactional'='true'); I've loaded some data INSERT INTO MYDIM VALUES (1, 'bob', '95136', true), (2, 'joe', '70068', true), (3, 'steve', '22150', true); I run a select in HIVE and records are returned SELECT * FROM MYDIM; mydim.key mydim.name mydim.zip mydim.is_current 1 bob 95136 true 2 joe 70068 true 3 steve 22150 true I can update & delete UPDATE MYDIM SET NAME = 'svasi' WHERE KEY=3; SELECT * FROM MYDIM; mydim.key mydim.name mydim.zip mydim.is_current 1 bob 95136 true 2 joe 70068 true 3 svasi 22150 true Table is available in Impala but no results are returned when I run the select * from mydim I've tried to invalidate metadata but still no records are read from Impala query   Thanks for your help   ... View more