[IMPALA-7385] several timezone conversion tests are failing within test-with-docker context

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: Impala 3.1.0
• Epic Color: ghx-label-4
• Assignee: Philip Martin
• Reporter: Philip Martin
• Created: 01/Aug/18 23:29
• Updated: 12/Feb/19 19:56
• Resolved: 12/Feb/19 19:53

Description

The following tests tend to fail when using test-with-docker. What's common about them is that they're doing a time zone conversion.

 metadata.test_show_create_table.TestShowCreateTable.test_show_create_table[table_format: text/none]	1 min 23 sec	19
 query_test.test_queries.TestHdfsQueries.test_hdfs_scan_node[exec_option: {'batch_size': 0, 'num_nodes': 0, 'disable_codegen_rows_threshold': 0, 'disable_codegen': False, 'abort_on_error': 1, 'debug_action': None, 'exec_single_node_rows_threshold': 0} | table_format: orc/def/block]	4.1 sec	58
 query_test.test_scanners.TestOrc.test_type_conversions[exec_option: {'batch_size': 0, 'num_nodes': 0, 'disable_codegen_rows_threshold': 0, 'disable_codegen': False, 'abort_on_error': 1, 'debug_action': None, 'exec_single_node_rows_threshold': 0} | table_format: orc/def/block]	16 sec	58
 ExprTest.TimestampFunctions

It turns out that people parse readlink(/etc/localtime) to find out the current time zone. This got noticeable when the ORC change landed (though I've seen that one come and go) and then very frequently when we changed time zone DBs. (Or so I think.)

I have a simple change forthcoming.

Issue Links

• relates to: IMPALA-7698 Add centos/redhat 6/7 support to bootstrap_system.sh