This is what I saw in IMPALAD.info:
I0405 16:44:39.136433 10963 impala-beeswax-server.cc:172] query():
query=describe tab1
I0405 16:44:39.136504 10963 impala-beeswax-server.cc:515] query: Query {
01: query (string) = "describe tab1",
03: configuration (list) = list<string>[0] {
},
04: hadoop_user (string) = "root",
}
I0405 16:44:39.136579 10963 impala-beeswax-server.cc:537]
TClientRequest.queryOptions: TQueryOptions {
01: abort_on_error (bool) = false,
02: max_errors (i32) = 0,
03: disable_codegen (bool) = false,
04: batch_size (i32) = 0,
05: num_nodes (i32) = 0,
06: max_scan_range_length (i64) = 0,
07: num_scanner_threads (i32) = 0,
08: max_io_buffers (i32) = 0,
09: allow_unsupported_formats (bool) = false,
10: default_order_by_limit (i64) = -1,
11: debug_action (string) = "",
12: mem_limit (i64) = 0,
13: abort_on_default_limit_exceeded (bool) = false,
15: hbase_caching (i32) = 0,
16: hbase_cache_blocks (bool) = false,
17: parquet_file_size (i64) = 0,
18: explain_level (i32) = 1,
19: sync_ddl (bool) = false,
23: disable_cached_reads (bool) = false,
24: disable_outermost_topn (bool) = false,
25: rm_initial_mem (i64) = 0,
26: query_timeout_s (i32) = 0,
28: appx_count_distinct (bool) = false,
29: disable_unsafe_spills (bool) = false,
31: exec_single_node_rows_threshold (i32) = 100,
}
I0405 16:44:39.139252 10963 Frontend.java:818] analyze query describe tab1
E0405 16:44:39.139780 10963 Analyzer.java:2210] Failed to load metadata for
table: tab1
java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
initialize class com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
I0405 16:44:39.140349 10963 jni-util.cc:177]
com.cloudera.impala.common.AnalysisException:
java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
initialize class com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
at com.cloudera.impala.analysis.DescribeStmt.analyze(DescribeStmt.java:117)
at
com.cloudera.impala.analysis.AnalysisContext.analyze(AnalysisContext.java:342)
at
com.cloudera.impala.analysis.AnalysisContext.analyze(AnalysisContext.java:317)
at com.cloudera.impala.service.Frontend.analyzeStmt(Frontend.java:827)
at com.cloudera.impala.service.Frontend.createExecRequest(Frontend.java:856)
at
com.cloudera.impala.service.JniFrontend.createExecRequest(JniFrontend.java:147)
Caused by: com.cloudera.impala.catalog.TableLoadingException:
java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
initialize class com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
at
com.cloudera.impala.catalog.IncompleteTable.loadFromThrift(IncompleteTable.java:111)
at com.cloudera.impala.catalog.Table.fromThrift(Table.java:240)
at
com.cloudera.impala.catalog.ImpaladCatalog.addTable(ImpaladCatalog.java:357)
at
com.cloudera.impala.catalog.ImpaladCatalog.addCatalogObject(ImpaladCatalog.java:246)
at
com.cloudera.impala.catalog.ImpaladCatalog.updateCatalog(ImpaladCatalog.java:132)
at
com.cloudera.impala.service.Frontend.updateCatalogCache(Frontend.java:223)
at
com.cloudera.impala.service.JniFrontend.updateCatalogCache(JniFrontend.java:164)
at ========.<Remote stack trace on catalogd>:
com.cloudera.impala.catalog.TableLoadingException:
java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
at
com.cloudera.impala.catalog.TableLoadingMgr$LoadRequest.get(TableLoadingMgr.java:71)
at
com.cloudera.impala.catalog.CatalogServiceCatalog.getOrLoadTable(CatalogServiceCatalog.java:499)
at com.cloudera.imp
ala.catalog.TableLoadingMgr.loadNextTable(TableLoadingMgr.java:287)
at
com.cloudera.impala.catalog.TableLoadingMgr.access$600(TableLoadingMgr.java:47)
at
com.cloudera.impala.catalog.TableLoadingMgr$3.run(TableLoadingMgr.java:260)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.util.concurrent.ExecutionException:
java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:188)
at
com.cloudera.impala.catalog.TableLoadingMgr$LoadRequest.get(TableLoadingMgr.java:69)
... 7 more
Caused by: java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
at com.cloudera.impala.catalog.HdfsTable.loadPartitions(HdfsTable.java:657)
at com.cloudera.impala.catalog.HdfsTable.load(HdfsTable.java:1151)
at com.cloudera.impala.catalog.TableLoader.load(TableLoader.java:84)
at
com.cloudera.impala.catalog.TableLoadingMgr$2.call(TableLoadingMgr.java:232)
at
com.cloudera.impala.catalog.TableLoadingMgr$2.call(TableLoadingMgr.java:229)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
... 3 more
()
I0405 16:44:39.151973 10963 status.cc:112] AnalysisException:
java.lang.NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
initialize class com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: TableLoadingException: java.lang.NoClassDefFoundError: Could not
initialize class com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
initialize class com.cloudera.impala.util.HdfsCachingUtil
CAUSED BY: NoClassDefFoundError: Could not initialize class
com.cloudera.impala.util.HdfsCachingUtil
@ 0x7993f9 (unknown)
@ 0xa325bb (unknown)
@ 0x96d110 (unknown)
@ 0x98599a (unknown)
@ 0x990c9f (unknown)
@ 0x9c103b (unknown)
@ 0xacdce6 (unknown)
@ 0xac2a5b (unknown)
@ 0x991b01 (unknown)
@ 0x15553ea (unknown)
@ 0x15425ef (unknown)
@ 0x1544ff6 (unknown)
@ 0x921ba9 (unknown)
@ 0x922692 (unknown)
@ 0xa629d5 (unknown)
@ 0xa63884 (unknown)
@ 0xc6f133 (unknown)
@ 0x7fb9dad04df5 start_thread
@ 0x7fb9d9bbf1ad __clone
I0405 16:44:39.152009 10963 impala-server.cc:862] UnregisterQuery():
query_id=164d3f861927d713:b845784fc383df9b
I0405 16:44:39.152016 10963 impala-server.cc:943] Cancel():
query_id=164d3f861927d713:b845784fc383df9b
On Tue, Apr 5, 2016 at 1:36 PM Pradeep Nayak <[email protected]> wrote:
> As for logs,
>
> I just see this :
>
> E0405 15:19:47.907562 10957 Analyzer.java:2210] Failed to load metadata
> for table: tab1
> java.lang.NoClassDefFoundError: Could not initialize class
> com.cloudera.impala.util.HdfsCachingUtil
> CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
> initialize class com.cloudera.impala.util.HdfsCachingUtil
> CAUSED BY: NoClassDefFoundError: Could not initialize class
> com.cloudera.impala.util.HdfsCachingUtil
> E0405 15:20:52.074620 10957 Analyzer.java:2210] Failed to load metadata
> for table: tab1
> java.lang.NoClassDefFoundError: Could not initialize class
> com.cloudera.impala.util.HdfsCachingUtil
> CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError: Could not
> initialize class com.cloudera.impala.util.HdfsCachingUtil
> CAUSED BY: NoClassDefFoundError: Could not initialize class
> com.cloudera.impala.util.HdfsCachingUtil
>
> tab1 is an external table.
>
> On Tue, Apr 5, 2016 at 1:24 PM Pradeep Nayak <[email protected]>
> wrote:
>
>> Here is the strange part:
>>
>> Where we make changes to core-site.xml, re-deploy the stale client
>> configs from the cloudera manager, and restart the affected services we get
>> into the NoClassDefound state. In order to get past it we needed to restart
>> impala dameons, catalog server etc again from the cloudera manager. Then
>> it begins to work.
>>
>> I can reproduce this but very inconsistently though. Is there any logs
>> you want me to be looking at ?
>>
>>
>> On Tue, Apr 5, 2016 at 10:26 AM Skye Wanderman-Milne <[email protected]>
>> wrote:
>>
>>> In case others run into similar issues, can you share how you resolved
>>> the NoClassDefFoundErrors?
>>>
>>> On Mon, Apr 4, 2016 at 10:21 PM, Henry Robinson <[email protected]>
>>> wrote:
>>>
>>>>
>>>>
>>>> On 4 April 2016 at 17:55, Pradeep Nayak <[email protected]> wrote:
>>>>
>>>>> Also just wanted to understand one more thing.
>>>>> http://www.cloudera.com/documentation/enterprise/5-5-x/topics/impala_s3.html
>>>>> It
>>>>> mentions that impala needs to have a default file system which is hdfs,
>>>>> but
>>>>> not just s3a, or any other filesystem which extends Hadoop FileSystem
>>>>> class
>>>>> ? Is there plans to support non hdfs filesystem as default ?
>>>>>
>>>>
>>>> Yes there are - see IMPALA-1850 (code review
>>>> http://gerrit.cloudera.org:8080/#/c/1121/).
>>>>
>>>> Henry
>>>>
>>>>
>>>>>
>>>>> Meanwhile I got around the problem earlier. I can query tables, do a
>>>>> count(*), etc.
>>>>>
>>>>> However join is causing a problem...
>>>>>
>>>>> *select * from tab1 join tab2;*
>>>>>
>>>>> *Query: select * from tab1 join tab2*
>>>>>
>>>>> *ERROR:*
>>>>>
>>>>> *Failed to connect to FS*
>>>>>
>>>>> *Error(255): Unknown error 255*
>>>>>
>>>>>
>>>>> Pradeep
>>>>>
>>>>> On Mon, Apr 4, 2016 at 3:31 PM Pradeep Nayak <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> That's what been puzzling me as well :(. Let me get back to you with
>>>>>> that information.
>>>>>>
>>>>>> Pradeep
>>>>>>
>>>>>> On Mon, Apr 4, 2016 at 3:28 PM Skye Wanderman-Milne <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> Actually, I didn't read your exception carefully and didn't notice
>>>>>>> that it can't find an Impala class, so it's probably not a dependency
>>>>>>> issue.
>>>>>>>
>>>>>>> Can you restart your cluster, rerun a select * query, and then
>>>>>>> search your logs for that "NoClassDefFoundError"? That will tell us
>>>>>>> which
>>>>>>> process the error is coming from. That class is included in the FE jar,
>>>>>>> so
>>>>>>> I'm not sure why it wouldn't be able to find it.
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Apr 4, 2016 at 3:14 PM, Pradeep Nayak <[email protected]
>>>>>>> > wrote:
>>>>>>>
>>>>>>>> Sure Skye. I didn't notice the to: list as well until you pointed
>>>>>>>> out. I really appreciate your help here.
>>>>>>>>
>>>>>>>> I haven't modified the pom.xml for the front-end here:
>>>>>>>> https://github.com/cloudera/Impala/blob/cdh5.5.2-release/fe/pom.xml
>>>>>>>>
>>>>>>>>
>>>>>>>> I am just building with this at the moment. mvn clean package
>>>>>>>> -DSkipTests = true from the fe folder.
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Apr 4, 2016 at 3:11 PM Skye Wanderman-Milne <
>>>>>>>> [email protected]> wrote:
>>>>>>>>
>>>>>>>>> Ah didn't mean to take this off the dev list. Also add our new
>>>>>>>>> [email protected] list.
>>>>>>>>>
>>>>>>>>> Can you check what dependency versions you're pulling in from
>>>>>>>>> maven? My guess is that you're somehow building with non-CDH5.5.2
>>>>>>>>> frontend
>>>>>>>>> dependencies.
>>>>>>>>>
>>>>>>>>> On Mon, Apr 4, 2016 at 3:04 PM, Pradeep Nayak <
>>>>>>>>> [email protected]> wrote:
>>>>>>>>>
>>>>>>>>>> Umm, I am trying to test this on a dev cluster which has cloudera
>>>>>>>>>> parcels already installed. I just re-placed
>>>>>>>>>> impala-frontend-0.1-SNAPSHOT.jar with my version. Do I need to change
>>>>>>>>>> anything on the dev cluster ?
>>>>>>>>>>
>>>>>>>>>> On Mon, Apr 4, 2016 at 2:43 PM Skye Wanderman-Milne <
>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>
>>>>>>>>>>> Try: source $IMPALA_HOME/bin/set-classpath.sh
>>>>>>>>>>>
>>>>>>>>>>> If you recently switched branches, you may want to close your
>>>>>>>>>>> current terminal, open a new one, and re-source
>>>>>>>>>>> $IMPALA_HOME/bin/impala-config.sh and set-classpath.sh.
>>>>>>>>>>>
>>>>>>>>>>> Then restart your cluster (start-impala-cluster.py)
>>>>>>>>>>>
>>>>>>>>>>> On Mon, Apr 4, 2016 at 2:39 PM, Pradeep Nayak <
>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> Thanks Skye.
>>>>>>>>>>>>
>>>>>>>>>>>> I am in my impala shell. I get this following error. I see this
>>>>>>>>>>>> is already compiled as part of impala-frontend. This happens only
>>>>>>>>>>>> when I
>>>>>>>>>>>> try to do a "select * from <table_name>" I can do "show tables;
>>>>>>>>>>>> create
>>>>>>>>>>>> table <table_name>" etc. Any pointers ?
>>>>>>>>>>>>
>>>>>>>>>>>> ERROR: AnalysisException: java.lang.NoClassDefFoundError: Could
>>>>>>>>>>>> not initialize class com.cloudera.impala.util.HdfsCachingUtil
>>>>>>>>>>>>
>>>>>>>>>>>> CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError:
>>>>>>>>>>>> Could not initialize class com.cloudera.impala.util.HdfsCachingUtil
>>>>>>>>>>>>
>>>>>>>>>>>> CAUSED BY: NoClassDefFoundError: Could not initialize class
>>>>>>>>>>>> com.cloudera.impala.util.HdfsCachingUtil
>>>>>>>>>>>>
>>>>>>>>>>>> CAUSED BY: TableLoadingException:
>>>>>>>>>>>> java.lang.NoClassDefFoundError: Could not initialize class
>>>>>>>>>>>> com.cloudera.impala.util.HdfsCachingUtil
>>>>>>>>>>>>
>>>>>>>>>>>> CAUSED BY: ExecutionException: java.lang.NoClassDefFoundError:
>>>>>>>>>>>> Could not initialize class com.cloudera.impala.util.HdfsCachingUtil
>>>>>>>>>>>>
>>>>>>>>>>>> CAUSED BY: NoClassDefFoundError: Could not initialize class
>>>>>>>>>>>> com.cloudera.impala.util.HdfsCachingUtil
>>>>>>>>>>>>
>>>>>>>>>>>> I used this tree:
>>>>>>>>>>>> https://github.com/cloudera/Impala/tree/cdh5.5.2-release
>>>>>>>>>>>>
>>>>>>>>>>>> On Mon, Apr 4, 2016 at 12:01 PM Skye Wanderman-Milne <
>>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> I think it should be
>>>>>>>>>>>>> https://github.com/cloudera/Impala/tree/cdh5-2.3.0_5.5.2
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Mon, Apr 4, 2016 at 12:00 PM, Pradeep Nayak <
>>>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Also to what release this parcel *5.5.2-1.cdh5.5.2.p0.4 *map
>>>>>>>>>>>>>> to on github ? I am unable to find a tag/branch for this parcel
>>>>>>>>>>>>>> type.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Mon, Apr 4, 2016 at 11:58 AM Skye Wanderman-Milne <
>>>>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Ah yes, both 1 and 2 are correct. Glad you figured it out!
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> On Mon, Apr 4, 2016 at 11:56 AM, Pradeep Nayak <
>>>>>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> I just figured.
>>>>>>>>>>>>>>>> 1. For the first time you need to use the ./buildall.sh and
>>>>>>>>>>>>>>>> for subsequent fe compilation I can just use maven
>>>>>>>>>>>>>>>> 2. It doesn't build on Macbook
>>>>>>>>>>>>>>>> 3. I set up a Ubuntu vm and got this compiled.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Pradeep
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Mon, Apr 4, 2016 at 11:07 AM Skye Wanderman-Milne <
>>>>>>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Hey Pradeep,
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> You should try running the $IMPALA_HOME/buildall.sh script
>>>>>>>>>>>>>>>>> in order to build Impala. It has a lot of necessary setup to
>>>>>>>>>>>>>>>>> build Impala.
>>>>>>>>>>>>>>>>> Here are the commands from buildall.sh that should provide the
>>>>>>>>>>>>>>>>> impala-data-source-api jar for building the FE:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> # build the external data source API
>>>>>>>>>>>>>>>>> pushd ${IMPALA_HOME}/ext-data-source
>>>>>>>>>>>>>>>>> ${IMPALA_HOME}/bin/mvn-quiet.sh install -DskipTests
>>>>>>>>>>>>>>>>> popd
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> See
>>>>>>>>>>>>>>>>> https://github.com/cloudera/Impala/blob/cdh5-trunk/buildall.sh#L283
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Hope that helps!
>>>>>>>>>>>>>>>>> Skye
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> On Sat, Apr 2, 2016 at 12:55 PM, Pradeep Nayak <
>>>>>>>>>>>>>>>>> [email protected]> wrote:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> I just cloned the Impala source from github, and I am
>>>>>>>>>>>>>>>>>> trying to compile the front end per Impala wiki. I get the
>>>>>>>>>>>>>>>>>> error below. I
>>>>>>>>>>>>>>>>>> am using maven 3.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> [ERROR] Failed to execute goal on project
>>>>>>>>>>>>>>>>>> impala-frontend: Could not resolve dependencies for project
>>>>>>>>>>>>>>>>>> com.cloudera.impala:impala-frontend:jar:0.1-SNAPSHOT:
>>>>>>>>>>>>>>>>>> Failure to find
>>>>>>>>>>>>>>>>>> com.cloudera.impala:impala-data-source-api:jar:1.0-SNAPSHOT
>>>>>>>>>>>>>>>>>> in
>>>>>>>>>>>>>>>>>> https://repository.cloudera.com/content/groups/cdh-releases-rcs
>>>>>>>>>>>>>>>>>> was cached in the local repository, resolution will not be
>>>>>>>>>>>>>>>>>> reattempted
>>>>>>>>>>>>>>>>>> until the update interval of cdh.rcs.releases.repo has
>>>>>>>>>>>>>>>>>> elapsed or updates
>>>>>>>>>>>>>>>>>> are forced -> [Help 1
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> This is the command I used: mvn clean package
>>>>>>>>>>>>>>>>>> dependency:copy-dependencies -DskipTests=true
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Any idea getting around this problem ?
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> Cheers!
>>>>>>>>>>>>>>>>>> Pradeep
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>>>> You received this message because you are subscribed to
>>>>>>>>>>>>>>>>>> the Google Groups "Impala Dev" group.
>>>>>>>>>>>>>>>>>> To unsubscribe from this group and stop receiving emails
>>>>>>>>>>>>>>>>>> from it, send an email to
>>>>>>>>>>>>>>>>>> [email protected].
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> --
>>>>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>>>>> Google Groups "Impala Dev" group.
>>>>>>>>>>>>>>>> To unsubscribe from this group and stop receiving emails
>>>>>>>>>>>>>>>> from it, send an email to
>>>>>>>>>>>>>>>> [email protected].
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>
>>>>>>> --
>>>>> You received this message because you are subscribed to the Google
>>>>> Groups "Impala Dev" group.
>>>>> To unsubscribe from this group and stop receiving emails from it, send
>>>>> an email to [email protected].
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Henry Robinson
>>>> Software Engineer
>>>> Cloudera
>>>> 415-994-6679
>>>>
>>>
>>>
