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https://issues.apache.org/jira/browse/HIVE-21637?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16899543#comment-16899543
 ] 

Hive QA commented on HIVE-21637:
--------------------------------

| (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  
6s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  7m 
57s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 
46s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  7m 
15s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
23s{color} | {color:blue} storage-api in master has 48 extant Findbugs 
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  2m 
28s{color} | {color:blue} standalone-metastore/metastore-common in master has 
31 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 
180 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  3m 
59s{color} | {color:blue} ql in master has 2250 extant Findbugs warnings. 
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
30s{color} | {color:blue} beeline in master has 44 extant Findbugs warnings. 
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
27s{color} | {color:blue} hcatalog/server-extensions in master has 3 extant 
Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
28s{color} | {color:blue} hcatalog/streaming in master has 11 extant Findbugs 
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
25s{color} | {color:blue} streaming in master has 2 extant Findbugs warnings. 
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
25s{color} | {color:blue} 
standalone-metastore/metastore-tools/metastore-benchmarks in master has 3 
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:blue}0{color} | {color:blue} findbugs {color} | {color:blue}  0m 
45s{color} | {color:blue} itests/util in master has 44 extant Findbugs 
warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 12m  
8s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 
25s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 13m 
40s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 12m 
29s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  5m 51s{color} 
| {color:red} root generated 10 new + 24 unchanged - 10 fixed = 34 total (was 
34) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
12s{color} | {color:red} storage-api: The patch generated 2 new + 15 unchanged 
- 0 fixed = 17 total (was 15) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
15s{color} | {color:red} standalone-metastore/metastore-common: The patch 
generated 9 new + 487 unchanged - 4 fixed = 496 total (was 491) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
39s{color} | {color:red} standalone-metastore/metastore-server: The patch 
generated 178 new + 1910 unchanged - 65 fixed = 2088 total (was 1975) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  1m  
1s{color} | {color:red} ql: The patch generated 64 new + 2295 unchanged - 32 
fixed = 2359 total (was 2327) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
11s{color} | {color:red} standalone-metastore/metastore-tools/tools-common: The 
patch generated 5 new + 31 unchanged - 0 fixed = 36 total (was 31) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  2m 
54s{color} | {color:red} root: The patch generated 300 new + 5947 unchanged - 
142 fixed = 6247 total (was 6089) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
12s{color} | {color:red} itests/hcatalog-unit: The patch generated 2 new + 24 
unchanged - 3 fixed = 26 total (was 27) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red}  0m 
22s{color} | {color:red} itests/hive-unit: The patch generated 40 new + 433 
unchanged - 38 fixed = 473 total (was 471) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green}  0m  
4s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m 
21s{color} | {color:red} standalone-metastore/metastore-server generated 9 new 
+ 175 unchanged - 5 fixed = 184 total (was 180) {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m 
20s{color} | {color:red} standalone-metastore_metastore-server generated 1 new 
+ 26 unchanged - 0 fixed = 27 total (was 26) {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  6m 
48s{color} | {color:red} root generated 2 new + 326 unchanged - 1 fixed = 328 
total (was 327) {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}117m 17s{color} | 
{color:black} {color} |
\\
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|| Reason || Tests ||
| FindBugs | module:standalone-metastore/metastore-server |
|  |  Redundant nullcheck of tbl, which is known to be non-null in 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_core(RawStore,
 String, String, String, boolean, EnvironmentContext, String)  Redundant null 
check at HiveMetaStore.java:is known to be non-null in 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.drop_table_core(RawStore,
 String, String, String, boolean, EnvironmentContext, String)  Redundant null 
check at HiveMetaStore.java:[line 2735] |
|  |  Redundant nullcheck of partitionSpecs which is known to be null in 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_part_specs_by_filter(String,
 String, String, int, String)  Redundant null check at HiveMetaStore.java:is 
known to be null in 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_part_specs_by_filter(String,
 String, String, int, String)  Redundant null check at HiveMetaStore.java:[line 
6584] |
|  |  Redundant nullcheck of partitionSpecs which is known to be null in 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_partitions_pspec(String,
 String, int, String)  Redundant null check at HiveMetaStore.java:is known to 
be null in 
org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.get_partitions_pspec(String,
 String, int, String)  Redundant null check at HiveMetaStore.java:[line 5108] |
|  |  Dead store to catNames in 
org.apache.hadoop.hive.metastore.cache.CachedStore.prewarm(RawStore, 
Configuration)  At 
CachedStore.java:org.apache.hadoop.hive.metastore.cache.CachedStore.prewarm(RawStore,
 Configuration)  At CachedStore.java:[line 512] |
|  |  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 1785] |
|  |  Write to static field 
org.apache.hadoop.hive.metastore.cache.CachedStore.cacheHit from instance 
method 
org.apache.hadoop.hive.metastore.cache.CachedStore.setConf(Configuration)  At 
CachedStore.java:from instance method 
org.apache.hadoop.hive.metastore.cache.CachedStore.setConf(Configuration)  At 
CachedStore.java:[line 150] |
|  |  Write to static field 
org.apache.hadoop.hive.metastore.cache.CachedStore.cacheMiss from instance 
method 
org.apache.hadoop.hive.metastore.cache.CachedStore.setConf(Configuration)  At 
CachedStore.java:from instance method 
org.apache.hadoop.hive.metastore.cache.CachedStore.setConf(Configuration)  At 
CachedStore.java:[line 151] |
|  |  Write to static field 
org.apache.hadoop.hive.metastore.cache.CachedStore.counterInited from instance 
method 
org.apache.hadoop.hive.metastore.cache.CachedStore.setConf(Configuration)  At 
CachedStore.java:from instance method 
org.apache.hadoop.hive.metastore.cache.CachedStore.setConf(Configuration)  At 
CachedStore.java:[line 152] |
|  |  Redundant nullcheck of tableColStats, which is known to be non-null in 
org.apache.hadoop.hive.metastore.cache.SharedCache.populateTableInCache(Table, 
ColumnStatistics, List, List, AggrStats, AggrStats, ValidWriteIdList)  
Redundant null check at SharedCache.java:is known to be non-null in 
org.apache.hadoop.hive.metastore.cache.SharedCache.populateTableInCache(Table, 
ColumnStatistics, List, List, AggrStats, AggrStats, ValidWriteIdList)  
Redundant null check at SharedCache.java:[line 1079] |
\\
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|| Subsystem || Report/Notes ||
| Optional Tests |  asflicense  javac  javadoc  xml  compile  findbugs  
checkstyle  |
| 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-18252/dev-support/hive-personality.sh
 |
| git revision | master / d7475aa |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.1 |
| javac | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-compile-javac-root.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-storage-api.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-standalone-metastore_metastore-common.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-standalone-metastore_metastore-server.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-ql.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-standalone-metastore_metastore-tools_tools-common.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-root.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-itests_hcatalog-unit.txt
 |
| checkstyle | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-checkstyle-itests_hive-unit.txt
 |
| findbugs | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/new-findbugs-standalone-metastore_metastore-server.html
 |
| javadoc | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-javadoc-javadoc-standalone-metastore_metastore-server.txt
 |
| javadoc | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus/diff-javadoc-javadoc-root.txt
 |
| modules | C: storage-api standalone-metastore/metastore-common 
standalone-metastore/metastore-server ql hcatalog/server-extensions beeline 
hcatalog/streaming streaming standalone-metastore/metastore-tools/tools-common 
standalone-metastore/metastore-tools/metastore-benchmarks . 
itests/hcatalog-unit itests/hive-unit itests/qtest-accumulo itests/qtest-spark 
itests/util U: . |
| Console output | 
http://104.198.109.242/logs//PreCommit-HIVE-Build-18252/yetus.txt |
| Powered by | Apache Yetus    http://yetus.apache.org |


This message was automatically generated.



> Synchronized metastore cache
> ----------------------------
>
>                 Key: HIVE-21637
>                 URL: https://issues.apache.org/jira/browse/HIVE-21637
>             Project: Hive
>          Issue Type: New Feature
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>            Priority: Major
>         Attachments: HIVE-21637-1.patch, HIVE-21637.10.patch, 
> HIVE-21637.11.patch, HIVE-21637.12.patch, HIVE-21637.13.patch, 
> HIVE-21637.14.patch, HIVE-21637.15.patch, HIVE-21637.16.patch, 
> HIVE-21637.17.patch, HIVE-21637.18.patch, HIVE-21637.19.patch, 
> HIVE-21637.19.patch, HIVE-21637.2.patch, HIVE-21637.20.patch, 
> HIVE-21637.21.patch, HIVE-21637.22.patch, HIVE-21637.23.patch, 
> HIVE-21637.24.patch, HIVE-21637.25.patch, HIVE-21637.26.patch, 
> HIVE-21637.27.patch, HIVE-21637.28.patch, HIVE-21637.29.patch, 
> HIVE-21637.3.patch, HIVE-21637.30.patch, HIVE-21637.31.patch, 
> HIVE-21637.32.patch, HIVE-21637.33.patch, HIVE-21637.34.patch, 
> HIVE-21637.35.patch, HIVE-21637.36.patch, HIVE-21637.37.patch, 
> HIVE-21637.38.patch, HIVE-21637.39.patch, HIVE-21637.4.patch, 
> HIVE-21637.40.patch, HIVE-21637.41.patch, HIVE-21637.42.patch, 
> HIVE-21637.43.patch, HIVE-21637.44.patch, HIVE-21637.45.patch, 
> HIVE-21637.46.patch, HIVE-21637.47.patch, HIVE-21637.48.patch, 
> HIVE-21637.49.patch, HIVE-21637.5.patch, HIVE-21637.50.patch, 
> HIVE-21637.51.patch, HIVE-21637.52.patch, HIVE-21637.53.patch, 
> HIVE-21637.54.patch, HIVE-21637.55.patch, HIVE-21637.56.patch, 
> HIVE-21637.57.patch, HIVE-21637.58.patch, HIVE-21637.59.patch, 
> HIVE-21637.6.patch, HIVE-21637.7.patch, HIVE-21637.8.patch, HIVE-21637.9.patch
>
>
> Currently, HMS has a cache implemented by CachedStore. The cache is 
> asynchronized and in HMS HA setting, we can only get eventual consistency. In 
> this Jira, we try to make it synchronized.



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