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https://issues.apache.org/jira/browse/HIVE-21697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16835516#comment-16835516
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Hive QA commented on HIVE-21697:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 1m
43s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 6m
59s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
36s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
50s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 2m
23s{color} | {color:blue} standalone-metastore/metastore-common in master has
29 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 1m
11s{color} | {color:blue} standalone-metastore/metastore-server in master has
181 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
40s{color} | {color:blue} itests/hive-unit in master has 2 extant Findbugs
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
35s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
23s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
43s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
35s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
35s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
22s{color} | {color:red} standalone-metastore/metastore-server: The patch
generated 3 new + 571 unchanged - 8 fixed = 574 total (was 579) {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m
0s{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git
apply --whitespace=fix <<patch_file>>. Refer https://git-scm.com/docs/git-apply
{color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red} 1m
18s{color} | {color:red} standalone-metastore/metastore-server generated 1 new
+ 181 unchanged - 0 fixed = 182 total (was 181) {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 1m
39s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
13s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 28m 52s{color} |
{color:black} {color} |
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|| Reason || Tests ||
| FindBugs | module:standalone-metastore/metastore-server |
| | Load of known null value in
org.apache.hadoop.hive.metastore.cache.CachedStore.get_aggr_stats_for(String,
String, String, List, List, String) At CachedStore.java:in
org.apache.hadoop.hive.metastore.cache.CachedStore.get_aggr_stats_for(String,
String, String, List, List, String) At CachedStore.java:[line 2009] |
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|| Subsystem || Report/Notes ||
| Optional Tests | asflicense javac javadoc findbugs checkstyle compile |
| uname | Linux hiveptest-server-upstream 3.16.0-4-amd64 #1 SMP Debian
3.16.43-2+deb8u5 (2017-09-19) x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-17168/dev-support/hive-personality.sh
|
| git revision | master / 71985c2 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-17168/yetus/diff-checkstyle-standalone-metastore_metastore-server.txt
|
| whitespace |
http://104.198.109.242/logs//PreCommit-HIVE-Build-17168/yetus/whitespace-eol.txt
|
| findbugs |
http://104.198.109.242/logs//PreCommit-HIVE-Build-17168/yetus/new-findbugs-standalone-metastore_metastore-server.html
|
| modules | C: standalone-metastore/metastore-common
standalone-metastore/metastore-server itests/hive-unit U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-17168/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Remove periodical full refresh in HMS cache
> -------------------------------------------
>
> Key: HIVE-21697
> URL: https://issues.apache.org/jira/browse/HIVE-21697
> Project: Hive
> Issue Type: Improvement
> Components: Standalone Metastore
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Priority: Major
> Attachments: HIVE-21697.1.patch, HIVE-21697.2.patch
>
>
> In HIVE-18661, we added periodical notification based refresh in HMS cache.
> We shall remove periodical full refresh to simplify the code as it will no
> longer be used. In the mean time, we introduced mechanism to provide
> monotonic reads through the CachedStore.commitTransaction. This will no
> longer be needed after HIVE-21637. So I will remove related code as well.
> This will provide some performance benefits include:
> 1. We don't have to slow down write to catch up notification logs. Write can
> be done immediately and tag the cache with writeids
> 2. We can read from cache even if updateUsingNotificationEvents is running.
> Read will compare the writeids of the cache so monotonic reads will be
> guaranteed
> I'd like to put a patch separately with HIVE-21637 so it can be tested
> independently. HMW will use periodical notification based refresh to update
> cache. And it will temporarily lift the monotonic reads guarantee until
> HIVE-21637 checkin.
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