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https://issues.apache.org/jira/browse/HIVE-22821?focusedWorklogId=400048&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-400048
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ASF GitHub Bot logged work on HIVE-22821:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 09/Mar/20 09:58
Start Date: 09/Mar/20 09:58
Worklog Time Spent: 10m
Work Description: szlta commented on pull request #909: HIVE-22821
URL: https://github.com/apache/hive/pull/909#discussion_r389559046
##########
File path:
llap-server/src/java/org/apache/hadoop/hive/llap/io/api/impl/LlapIoImpl.java
##########
@@ -221,6 +227,9 @@ public void debugDumpShort(StringBuilder sb) {
metadataCache, dataCache, bufferManagerOrc, conf, cacheMetrics,
ioMetrics, tracePool);
this.genericCvp = isEncodeEnabled ? new GenericColumnVectorProducer(
serdeCache, bufferManagerGeneric, conf, cacheMetrics, ioMetrics,
tracePool) : null;
+ proactiveEvictionExecutor = Executors.newSingleThreadExecutor(
Review comment:
Well I agree on the daemon side, but not on iHS2. I think this should not
handled the same way purge is:
- the invocation of purge is done by the users themselves so they should
know what they're doing and this can wait for the result however long it takes
- proactive eviction is done in the background i.e. less apparent to the
users - e.g. whenever a drop table/partition/db happens. I'd imagine a use case
where we have many many daemons with large caches, and such proactive eviction
could take longer. In this case I don't want users having to wait for the
eviction to complete before their drop table command returns.
Wouldn't you agree?
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Issue Time Tracking
-------------------
Worklog Id: (was: 400048)
Time Spent: 2h 10m (was: 2h)
> Add necessary endpoints for proactive cache eviction
> ----------------------------------------------------
>
> Key: HIVE-22821
> URL: https://issues.apache.org/jira/browse/HIVE-22821
> Project: Hive
> Issue Type: Sub-task
> Components: llap
> Reporter: Ádám Szita
> Assignee: Ádám Szita
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22821.0.patch, HIVE-22821.1.patch,
> HIVE-22821.2.patch
>
> Time Spent: 2h 10m
> Remaining Estimate: 0h
>
> Implement the parts required for iHS2 -> LLAP daemons communication:
> * protobuf message schema and endpoints
> * Hive configuration
> * for use cases:
> ** dropping db
> ** dropping table
> ** dropping partition from a table
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