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https://issues.apache.org/jira/browse/HIVE-23553?focusedWorklogId=545680&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-545680
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ASF GitHub Bot logged work on HIVE-23553:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 01/Feb/21 22:58
Start Date: 01/Feb/21 22:58
Worklog Time Spent: 10m
Work Description: mustafaiman commented on a change in pull request #1823:
URL: https://github.com/apache/hive/pull/1823#discussion_r568200811
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -4509,7 +4509,7 @@ private static void populateLlapDaemonVarsSet(Set<String>
llapDaemonVarsSetLocal
"Minimum allocation possible from LLAP buddy allocator. Allocations
below that are\n" +
"padded to minimum allocation. For ORC, should generally be the same
as the expected\n" +
"compression buffer size, or next lowest power of 2. Must be a power
of 2."),
- LLAP_ALLOCATOR_MAX_ALLOC("hive.llap.io.allocator.alloc.max", "16Mb", new
SizeValidator(),
+ LLAP_ALLOCATOR_MAX_ALLOC("hive.llap.io.allocator.alloc.max", "4Mb", new
SizeValidator(),
Review comment:
I see ORC strictly enforces this now. I would set the appropriate
setting at Hive-ORC boundary and leave the LLAP_ALLOCATOR_MAX_ALLOC as it is
(Math.min(llap.allocator.max, what ORC enforces). If you think we should set
LLAP_ALLOCATOR_MAX_ALLOC to be the same as what ORC enforces, that can be done
in a seperate ticket. Like you said this is orthogonal to ORC version bump,
therefore should be discussed in its own ticket.
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Issue Time Tracking
-------------------
Worklog Id: (was: 545680)
Time Spent: 7h 20m (was: 7h 10m)
> Upgrade ORC version to 1.6.7
> ----------------------------
>
> Key: HIVE-23553
> URL: https://issues.apache.org/jira/browse/HIVE-23553
> Project: Hive
> Issue Type: Improvement
> Reporter: Panagiotis Garefalakis
> Assignee: Panagiotis Garefalakis
> Priority: Major
> Labels: pull-request-available
> Time Spent: 7h 20m
> Remaining Estimate: 0h
>
> Apache Hive is currently on 1.5.X version and in order to take advantage of
> the latest ORC improvements such as column encryption we have to bump to
> 1.6.X.
> https://issues.apache.org/jira/secure/ReleaseNote.jspa?version=12343288&styleName=&projectId=12318320&Create=Create&atl_token=A5KQ-2QAV-T4JA-FDED_4ae78f19321c7fb1e7f337fba1dd90af751d8810_lin
> Even though ORC reader could work out of the box, HIVE LLAP is heavily
> depending on internal ORC APIs e.g., to retrieve and store File Footers,
> Tails, streams – un/compress RG data etc. As there ware many internal changes
> from 1.5 to 1.6 (Input stream offsets, relative BufferChunks etc.) the
> upgrade is not straightforward.
> This Umbrella Jira tracks this upgrade effort.
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