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https://issues.apache.org/jira/browse/HIVE-20377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16595819#comment-16595819
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Hive QA commented on HIVE-20377:
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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
1s{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} 0m
32s{color} | {color:blue} Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 8m
6s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 9m
43s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 2m
19s{color} | {color:green} master passed {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
42s{color} | {color:blue} serde in master has 195 extant Findbugs warnings.
{color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
19s{color} | {color:blue} itests/qtest-druid in master has 6 extant Findbugs
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
48s{color} | {color:blue} itests/util in master has 52 extant Findbugs
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
40s{color} | {color:blue} llap-server in master has 84 extant Findbugs
warnings. {color} |
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 4m
6s{color} | {color:blue} ql in master has 2310 extant Findbugs warnings.
{color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 9m
15s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue} 0m
7s{color} | {color:blue} Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 11m
9s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 9m
53s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 9m
53s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
10s{color} | {color:red} itests/qtest-druid: The patch generated 37 new + 3
unchanged - 0 fixed = 40 total (was 3) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
9s{color} | {color:red} kafka-handler: The patch generated 33 new + 0 unchanged
- 0 fixed = 33 total (was 0) {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 0m
14s{color} | {color:red} llap-server: The patch generated 1 new + 26 unchanged
- 4 fixed = 27 total (was 30) {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
5s{color} | {color:green} The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 7m
36s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 9m
35s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
12s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 79m 0s{color} |
{color:black} {color} |
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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
3.16.36-1+deb8u1 (2016-09-03) x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/data/hiveptest/working/yetus_PreCommit-HIVE-Build-13517/dev-support/hive-personality.sh
|
| git revision | master / d2b81a9 |
| Default Java | 1.8.0_111 |
| findbugs | v3.0.0 |
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13517/yetus/diff-checkstyle-itests_qtest-druid.txt
|
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13517/yetus/diff-checkstyle-kafka-handler.txt
|
| checkstyle |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13517/yetus/diff-checkstyle-llap-server.txt
|
| modules | C: serde . itests itests/qtest itests/qtest-druid itests/util
kafka-handler llap-server packaging ql U: . |
| Console output |
http://104.198.109.242/logs//PreCommit-HIVE-Build-13517/yetus.txt |
| Powered by | Apache Yetus http://yetus.apache.org |
This message was automatically generated.
> Hive Kafka Storage Handler
> --------------------------
>
> Key: HIVE-20377
> URL: https://issues.apache.org/jira/browse/HIVE-20377
> Project: Hive
> Issue Type: New Feature
> Affects Versions: 4.0.0
> Reporter: slim bouguerra
> Assignee: slim bouguerra
> Priority: Major
> Attachments: HIVE-20377.10.patch, HIVE-20377.11.patch,
> HIVE-20377.12.patch, HIVE-20377.15.patch, HIVE-20377.18.patch,
> HIVE-20377.4.patch, HIVE-20377.5.patch, HIVE-20377.6.patch,
> HIVE-20377.8.patch, HIVE-20377.8.patch, HIVE-20377.patch
>
>
> h1. Goal
> * Read streaming data form Kafka queue as an external table.
> * Allow streaming navigation by pushing down filters on Kafka record
> partition id, offset and timestamp.
> * Insert streaming data form Kafka to an actual Hive internal table, using
> CTAS statement.
> h1. Example
> h2. Create the external table
> {code}
> CREATE EXTERNAL TABLE kafka_table (`timestamp` timestamp, page string, `user`
> string, language string, added int, deleted int, flags string,comment string,
> namespace string)
> STORED BY 'org.apache.hadoop.hive.kafka.KafkaStorageHandler'
> TBLPROPERTIES
> ("kafka.topic" = "wikipedia",
> "kafka.bootstrap.servers"="brokeraddress:9092",
> "kafka.serde.class"="org.apache.hadoop.hive.serde2.JsonSerDe");
> {code}
> h2. Kafka Metadata
> In order to keep track of Kafka records the storage handler will add
> automatically the Kafka row metadata eg partition id, record offset and
> record timestamp.
> {code}
> DESCRIBE EXTENDED kafka_table
> timestamp timestamp from deserializer
> page string from deserializer
> user string from deserializer
> language string from deserializer
> country string from deserializer
> continent string from deserializer
> namespace string from deserializer
> newpage boolean from deserializer
> unpatrolled boolean from deserializer
> anonymous boolean from deserializer
> robot boolean from deserializer
> added int from deserializer
> deleted int from deserializer
> delta bigint from deserializer
> __partition int from deserializer
> __offset bigint from deserializer
> __timestamp bigint from deserializer
> {code}
> h2. Filter push down.
> Newer Kafka consumers 0.11.0 and higher allow seeking on the stream based on
> a given offset. The proposed storage handler will be able to leverage such
> API by pushing down filters over metadata columns, namely __partition (int),
> __offset(long) and __timestamp(long)
> For instance Query like
> {code}
> select `__offset` from kafka_table where (`__offset` < 10 and `__offset`>3
> and `__partition` = 0) or (`__partition` = 0 and `__offset` < 105 and
> `__offset` > 99) or (`__offset` = 109);
> {code}
> Will result on a scan of partition 0 only then read only records between
> offset 4 and 109.
> h2. With timestamp seeks
> The seeking based on the internal timestamps allows the handler to run on
> recently arrived data, by doing
> {code}
> select count(*) from kafka_table where `__timestamp` > 1000 *
> to_unix_timestamp(CURRENT_TIMESTAMP - interval '20' hours) ;
> {code}
> This allows for implicit relationships between event timestamps and kafka
> timestamps to be expressed in queries (i.e event_timestamp is always < than
> kafka __timestamp and kafka __timestamp is never > 15 minutes from event etc).
> h2. More examples with Avro
> {code}
> CREATE EXTERNAL TABLE wiki_kafka_avro_table
> STORED BY 'org.apache.hadoop.hive.kafka.KafkaStorageHandler'
> TBLPROPERTIES
> ("kafka.topic" = "wiki_kafka_avro_table",
> "kafka.bootstrap.servers"="localhost:9092",
> "kafka.serde.class"="org.apache.hadoop.hive.serde2.avro.AvroSerDe",
> 'avro.schema.literal'='{
> "type" : "record",
> "name" : "Wikipedia",
> "namespace" : "org.apache.hive.kafka",
> "version": "1",
> "fields" : [ {
> "name" : "isrobot",
> "type" : "boolean"
> }, {
> "name" : "channel",
> "type" : "string"
> }, {
> "name" : "timestamp",
> "type" : "string"
> }, {
> "name" : "flags",
> "type" : "string"
> }, {
> "name" : "isunpatrolled",
> "type" : "boolean"
> }, {
> "name" : "page",
> "type" : "string"
> }, {
> "name" : "diffurl",
> "type" : "string"
> }, {
> "name" : "added",
> "type" : "long"
> }, {
> "name" : "comment",
> "type" : "string"
> }, {
> "name" : "commentlength",
> "type" : "long"
> }, {
> "name" : "isnew",
> "type" : "boolean"
> }, {
> "name" : "isminor",
> "type" : "boolean"
> }, {
> "name" : "delta",
> "type" : "long"
> }, {
> "name" : "isanonymous",
> "type" : "boolean"
> }, {
> "name" : "user",
> "type" : "string"
> }, {
> "name" : "deltabucket",
> "type" : "double"
> }, {
> "name" : "deleted",
> "type" : "long"
> }, {
> "name" : "namespace",
> "type" : "string"
> } ]
> }'
> );
> {code}
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