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https://issues.apache.org/jira/browse/HIVE-19369?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17089267#comment-17089267
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Hive QA commented on HIVE-19369:
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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} 2m
13s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
48s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m
33s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
39s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 2m
46s{color} | {color:blue} standalone-metastore/metastore-common in master has
35 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
36s{color} | {color:blue} common in master has 63 extant Findbugs warnings.
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 1m
21s{color} | {color:blue} standalone-metastore/metastore-server in master has
190 extant Findbugs warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 3m
59s{color} | {color:blue} ql in master has 1530 extant Findbugs warnings.
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| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
42s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
30s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
3s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 2m
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 2m
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
13s{color} | {color:green} standalone-metastore/metastore-common: The patch
generated 0 new + 3 unchanged - 1 fixed = 3 total (was 4) {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m
17s{color} | {color:green} The patch common passed checkstyle {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
24s{color} | {color:red} standalone-metastore/metastore-server: The patch
generated 5 new + 504 unchanged - 33 fixed = 509 total (was 537) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
48s{color} | {color:red} ql: The patch generated 23 new + 231 unchanged - 122
fixed = 254 total (was 353) {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} findbugs {color} | {color:green} 2m
55s{color} | {color:green} metastore-common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 0m
43s{color} | {color:green} common in the patch passed. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
28s{color} | {color:green} standalone-metastore/metastore-server generated 0
new + 189 unchanged - 1 fixed = 189 total (was 190) {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 4m
6s{color} | {color:green} ql in the patch passed. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 2m
36s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
16s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 47m 42s{color} |
{color:black} {color} |
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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-21840/dev-support/hive-personality.sh
|
| git revision | master / 8b9fadb |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-21840/yetus/diff-checkstyle-standalone-metastore_metastore-server.txt
|
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-21840/yetus/diff-checkstyle-ql.txt
|
| modules | C: standalone-metastore/metastore-common common
standalone-metastore/metastore-server ql U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-21840/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Locks: Add new lock implementations for always zero-wait readers
> ----------------------------------------------------------------
>
> Key: HIVE-19369
> URL: https://issues.apache.org/jira/browse/HIVE-19369
> Project: Hive
> Issue Type: Improvement
> Components: Transactions
> Reporter: Gopal Vijayaraghavan
> Assignee: Denys Kuzmenko
> Priority: Major
> Attachments: HIVE-19369.1.patch, HIVE-19369.2.patch,
> HIVE-19369.3.patch, HIVE-19369.4.patch, HIVE-19369.5.patch,
> HIVE-19369.6.patch, HIVE-19369.7.patch
>
>
> Hive Locking with Micro-managed and full-ACID tables needs a better locking
> implementation which allows for no-wait readers always.
> EXCL_DROP
> EXCL_WRITE
> SHARED_WRITE
> SHARED_READ
> Short write-up
> EXCL_DROP is a "drop partition" or "drop table" and waits for all others to
> exit
> EXCL_WRITE excludes all writes and will wait for all existing SHARED_WRITE to
> exit.
> SHARED_WRITE allows all SHARED_WRITES to go through, but will wait for an
> EXCL_WRITE & EXCL_DROP (waiting so that you can do drop + insert in different
> threads).
> SHARED_READ does not wait for any lock - it fails fast for a pending
> EXCL_DROP, because even if there is an EXCL_WRITE or SHARED_WRITE pending,
> there's no semantic reason to wait for them to succeed before going ahead
> with a SHARED_WRITE.
> a select * => SHARED_READ
> an insert into => SHARED_WRITE
> an insert overwrite or MERGE => EXCL_WRITE
> a drop table => EXCL_DROP
> TODO:
> The fate of the compactor needs to be added to this before it is a complete
> description.
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