[HAWQ-1552] hawq does not support hdfs storage policy？

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: libhdfs
• Assignee: Radar Da Lei
• Reporter: lynn
• Created: 17/Nov/17 09:34
• Updated: 20/Nov/17 05:59

Description

1.The '/ssd" path on HDFS set storage policy ALL_SSD.
hdfs storagepolicies -setStoragePolicy -path /ssd -policy ALL_SSD

2. check
[hdfs@master1 ~]$ hdfs storagepolicies -getStoragePolicy -path /ssd
The storage policy of /ssd:
BlockStoragePolicy

{ALL_SSD:12, storageTypes=[SSD], creationFallbacks=[DISK], replicationFallbacks=[DISK]}

3. put file to hdfs
hdfs dfs -put dd.txt /ssd/fs_ssd

4.check block location
[hdfs@master1 ~]$ hdfs fsck /ssd/fs_ssd/dd.txt -blocks -locations -files
decommissioned replica(s) and 0 decommissioning replica(s).
0. BP-845848702-192.168.1.130-1496396138316:blk_1075677761_7587369 len=7 repl=3 [DatanodeInfoWithStorage[192.168.1.133:50010,DS-1510d4e4-cfdb-4184-8f47-7417b91f4f5c,SSD], DatanodeInfoWithStorage[192.168.1.132:50010,DS-7d498d01-8242-4621-8901-fe397a8196c3,SSD], DatanodeInfoWithStorage[192.168.1.134:50010,DS-37c4e804-1b2a-4156-a54c-cecc8393bb09,SSD]]

5.hawq create filespace fs_ssd and tablespace ts_ssd, fs_ssd point to /ssd/fs_ssd path

6.psql create table
create table p(i int)with(appendonly=true,orientation=parquet,compresstype=snappy) tablespace fs_ssd;

7. psql insert data
insert into p values(1);

8. query the file on hdfs
select c.relname, d.dat2tablespace tablespace_id, d.oid database_id, c.relfilenode table_id
from pg_database d, pg_class c, pg_namespace n
where c.relnamespace = n.oid
and d.datname = current_database()
and c.relname = 'p';

relname | tablespace_id | database_id | table_id
--------------------------------+---------
p | 1021474 | 1021475 | 1037187

9. check the file of table "p" locations
[hdfs@master1 ~]$ hdfs fsck /ssd/fs_ssd/1021474/1021475/1037187/1 -blocks -locations -files
Connecting to namenode via http://master1.bigdata:50070/fsck?ugi=hdfs&blocks=1&locations=1&files=1&path=%2Fssd%2Ffs_ssd%2F1021474%2F1021475%2F1037187%2F1
FSCK started by hdfs (auth:SIMPLE) from /192.168.1.130 for path /ssd/fs_ssd/1021474/1021475/1037187/1 at Fri Nov 17 17:26:17 CST 2017
/ssd/fs_ssd/1021474/1021475/1037187/1 188 bytes, 1 block(s): OK
0. BP-845848702-192.168.1.130-1496396138316:blk_1075677763_7587371 len=188 repl=3 [DatanodeInfoWithStorage[192.168.1.134:50010,DS-4be28698-6ebd-4ae0-a515-f3fb5e1293ab,DISK], DatanodeInfoWithStorage[192.168.1.133:50010,DS-99d56cac-5af0-483d-b93f-a1bbae038934,DISK], DatanodeInfoWithStorage[192.168.1.132:50010,DS-22c09ee4-49ac-47ed-a592-4f0e84776086,DISK]]

The ALL_SSD storage policy doesn't work!!!