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From James Taylor <jamestay...@apache.org>
Subject Re: Exception from RowCounter
Date Sun, 26 Jul 2015 16:52:49 GMT
PHOENIX-1248 is marked as resolved. Are you using a version of Phoenix
before this fix?

On Sun, Jul 26, 2015 at 7:22 AM, Riesland, Zack <Zack.Riesland@sensus.com>
wrote:

>  Thanks James,
>
>  I am not able to use salt_buckets because I need to import data to this
> table from Hive via CsvBulkLoader and that doesn't work if the table is
> created with 'salt_buckets':
> https://issues.apache.org/jira/browse/PHOENIX-1248
>
>
>  ------------------------------
> *From:* James Taylor [jamestaylor@apache.org]
> *Sent:* Saturday, July 25, 2015 1:23 PM
> *To:* user
> *Cc:* Haisty, Geoffrey
> *Subject:* Re: Exception from RowCounter
>
>   Hi Zack,
> If you find an issue, the best way for us is to come up with the smallest
> set of data the demonstrates the issue and a small script that consistently
> reproduces it. It's just not feasible for us to work from a billion row
> data set.
>
>  RowCounter is not  a Phoenix API, so you'll need to go to the HBase
> email lists for help on that.
>
>  From a schema design perspective, it seems a bit unwieldy what you're
> doing. Why not just salt the data table instead of manually salting it and
> managing that yourself?
>
>  Thanks,
> James
>
> On Sat, Jul 25, 2015 at 4:04 AM, Riesland, Zack <Zack.Riesland@sensus.com>
> wrote:
>
>>  I decided to start from scratch with my table schema in attempt to get
>> a better distribution across my regions/region servers.
>>
>>
>>
>> So, I created a table like this:
>>
>>
>>
>> CREATE TABLE fma.er_keyed_gz_hashed_indexed_meterkey_immutable (
>>
>>     hashed_key varchar not null,
>>
>>     meter_key varchar ,
>>
>>     …
>>
>>     endpoint_id integer,
>>
>>     sample_point  integer not null,
>>
>>    …
>>
>>     CONSTRAINT pk_fma_er_keyed_gz_hashed_indexed_meterkey_immutable
>> PRIMARY KEY (hashed_key, sample_point)
>>
>>     )
>>
>>     COMPRESSION='GZ'
>>
>>     SPLIT ON ('0-', '1-', '2-', '3-', '4-', '5-', '6-', '7-', '8-', '9-',
>> '10-', '11-', '12-', '13-', '14-', '15-', '16-', '17-', '18-', '19-',
>> '20-', '21-', '22-', '23-', '24-', '25-', '26-', '27-', '28-', '29-',
>> '30-', '31-', '32-', '33-', '34-', '35-', '36-', '37-', '38-', '39-',
>> '40-', '41-', '42-', '43-', '44-', '45-', '46-', '47-', '48-', '49-',
>> '50-', '51-', '52-', '53-', '54-', '55-', '56-', '57-', '58-', '59-',
>> '60-', '61-', '62-', '63-', '64-', '65-', '66-', '67-', '68-', '69-',
>> '70-', '71-', '72-', '73-', '74-', '75-', '76-', '77-', '78-', '79-',
>> '80-', '81-', '82-', '83-', '84-', '85-', '86-', '87-', '88-', '89-',
>> '90-', '91-', '92-', '93-', '94-', '95-', '96-', '97-', '98-', '99-',
>> '100-', '101-', '102-', '103-', '104-', '105-', '106-', '107-', '108-',
>> '109-', '110-', '111-', '112-', '113-', '114-', '115-', '116-', '117-',
>> '118-', '119-', '120-', '121-', '122-', '123-', '124-', '125-', '126-',
>> '127-', '128-', '129-', '130-', '131-', '132-', '133-', '134-', '135-',
>> '136-', '137-', '138-', '139-', '140-', '141-', '142-', '143-', '144-',
>> '145-', '146-', '147-', '148-', '149-', '150-', '151-', '152-', '153-',
>> '154-', '155-', '156-', '157-', '158-', '159-', '160-', '161-', '162-',
>> '163-', '164-', '165-', '166-', '167-', '168-', '169-', '170-', '171-',
>> '172-', '173-', '174-', '175-', '176-', '177-', '178-', '179-', '180-',
>> '181-', '182-', '183-', '184-', '185-', '186-', '187-', '188-', '189-',
>> '190-', '191-', '192-', '193-', '194-', '195-', '196-', '197-', '198-',
>> '199-', '200-', '201-', '202-', '203-', '204-', '205-', '206-', '207-',
>> '208-', '209-', '210-', '211-', '212-', '213-', '214-', '215-', '216-',
>> '217-', '218-', '219-', '220-', '221-', '222-', '223-', '224-', '225-',
>> '226-', '227-', '228-', '229-', '230-', '231-', '232-', '233-', '234-',
>> '235-', '236-', '237-', '238-', '239-', '240-', '241-', '242-', '243-',
>> '244-', '245-', '246-', '247-', '248-', '249-', '250-', '251-', '252-',
>> '253-', '254-', '255-', '256-', '257-', '258-', '259-', '260-', '261-',
>> '262-', '263-', '264-', '265-', '266-', '267-', '268-', '269-', '270-',
>> '271-', '272-', '273-', '274-', '275-', '276-', '277-', '278-', '279-',
>> '280-', '281-', '282-', '283-', '284-', '285-', '286-', '287-', '288-',
>> '289-', '290-', '291-', '292-', '293-', '294-', '295-', '296-', '297-',
>> '298-', '299-', '300-', '301-', '302-', '303-', '304-', '305-', '306-',
>> '307-', '308-', '309-', '310-', '311-', '312-', '313-', '314-', '315-',
>> '316-', '317-', '318-', '319-', '320-', '321-', '322-', '323-', '324-',
>> '325-', '326-', '327-', '328-', '329-', '330-', '331-', '332-', '333-',
>> '334-', '335-', '336-', '337-', '338-', '339-', '340-', '341-', '342-',
>> '343-', '344-', '345-', '346-', '347-', '348-', '349-', '350-', '351-',
>> '352-', '353-', '354-', '355-', '356-', '357-', '358-', '359-', '360-',
>> '361-', '362-', '363-', '364-', '365-', '366-', '367-', '368-', '369-',
>> '370-', '371-', '372-', '373-', '374-', '375-', '376-', '377-', '378-',
>> '379-', '380-', '381-', '382-', '383-', '384-', '385-', '386-', '387-',
>> '388-', '389-', '390-', '391-', '392-', '393-', '394-', '395-', '396-',
>> '397-', '398-', '399-', '400-', '401-', '402-', '403-', '404-', '405-',
>> '406-', '407-', '408-', '409-', '410-', '411-', '412-', '413-', '414-',
>> '415-', '416-', '417-', '418-', '419-', '420-', '421-', '422-', '423-',
>> '424-', '425-', '426-', '427-', '428-', '429-', '430-', '431-', '432-',
>> '433-', '434-', '435-', '436-', '437-', '438-', '439-', '440-', '441-',
>> '442-', '443-', '444-', '445-', '446-', '447-', '448-', '449-', '450-',
>> '451-', '452-', '453-', '454-', '455-', '456-', '457-', '458-', '459-',
>> '460-', '461-', '462-', '463-', '464-', '465-', '466-', '467-', '468-',
>> '469-', '470-', '471-', '472-', '473-', '474-', '475-', '476-', '477-',
>> '478-', '479-', '480-', '481-', '482-', '483-', '484-', '485-', '486-',
>> '487-', '488-', '489-', '490-', '491-', '492-', '493-', '494-', '495-',
>> '496-', '497-', '498-', '499-', '500-', '501-', '502-', '503-', '504-',
>> '505-', '506-', '507-', '508-', '509-', '510-', '511-')
>>
>>
>>
>> The hashed key is the endpoint_id % 511, which is why the splitting is
>> done this way.
>>
>>
>>
>> I also added 2 secondary indexes, because I need to be able to query
>> based on meter_key or endpoint_id + sample_point:
>>
>>
>>
>> CREATE INDEX fma_er_keyed_gz_hashed_indexed_endpoint_include_sample_point
>> on fma.er_keyed_gz_hashed_indexed_meterkey_immutable (endpoint_id) include
>> (sample_point) SALT_BUCKETS = 256; --256 is max
>>
>>
>>
>> CREATE INDEX fma_er_keyed_gz_hashed_indexed_meterkey on
>> fma.er_keyed_gz_hashed_indexed_meterkey_immutable (meter_key) SALT_BUCKETS
>> = 256; --256 is max
>>
>>
>>
>> This all seemed to work well.
>>
>>
>>
>> Then I use the bulk import from CSV tool and imported about 1 billion
>> rows.
>>
>>
>>
>> This also seemed to work.
>>
>>
>>
>> I can query by hashed_key and get immediate results.
>>
>>
>>
>> If I query by endpoint_id or meter_key, it is MUCH slower (clue 1 that
>> there’s a problem), but it gives me results eventually.
>>
>>
>>
>> However, when I try to get a count, it returns 0:
>>
>>
>>
>>
>>
>> > select count(*) from fma.er_keyed_gz_hashed_indexed_meterkey_immutable;
>>
>> +------------+
>>
>> |  COUNT(1)  |
>>
>> +------------+
>>
>> | 0          |
>>
>> +------------+
>>
>> 1 row selected (0.075 seconds)
>>
>>
>>
>> And when I try to do a RowCounter job, it fails completely (see below).
>>
>>
>>
>> Can anyone help me diagnose what is going on here?
>>
>>
>>
>> This is a cluster with 6 large region servers, that each have about 600
>> regions (from this and other tables).
>>
>>
>>
>> This table has about 12 columns and 1 billion rows currently.
>>
>>
>>
>> Thanks!
>>
>>
>>
>> #  hbase org.apache.hadoop.hbase.mapreduce.RowCounter
>> fma.er_keyed_gz_hashed_indexed_meterkey_immutable;
>>
>>
>>
>>
>>
>> 2015-07-25 06:53:36,425 DEBUG [main] util.RegionSizeCalculator: Region
>> sizes calculated
>>
>> 2015-07-25 06:53:36,427 WARN  [main] hbase.HBaseConfiguration: Config
>> option "hbase.regionserver.lease.period" is deprecated. Instead, use
>> "hbase.client.scanner.timeout.period"
>>
>> 2015-07-25 06:53:36,468 WARN  [main]
>> client.ConnectionManager$HConnectionImplementation: Encountered problems
>> when prefetch hbase:meta table:
>>
>> org.apache.hadoop.hbase.TableNotFoundException: Cannot find row in
>> hbase:meta for table: fma.er_keyed_gz_hashed_indexed_meterkey_immutable,
>> row=fma.er_keyed_gz_hashed_indexed_meterkey_immutable,,99999999999999
>>
>>         at
>> org.apache.hadoop.hbase.client.MetaScanner.metaScan(MetaScanner.java:164)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.prefetchRegionCache(ConnectionManager.java:1222)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1286)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1135)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1118)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1075)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getRegionLocation(ConnectionManager.java:909)
>>
>>         at
>> org.apache.hadoop.hbase.client.HTable.getRegionLocation(HTable.java:528)
>>
>>         at
>> org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.getSplits(TableInputFormatBase.java:165)
>>
>>         at
>> org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:597)
>>
>>         at
>> org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:614)
>>
>>         at
>> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:492)
>>
>>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296)
>>
>>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293)
>>
>>         at java.security.AccessController.doPrivileged(Native Method)
>>
>>         at javax.security.auth.Subject.doAs(Subject.java:415)
>>
>>         at
>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
>>
>>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:1293)
>>
>>         at
>> org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1314)
>>
>>         at
>> org.apache.hadoop.hbase.mapreduce.RowCounter.main(RowCounter.java:191)
>>
>> 2015-07-25 06:53:36,471 INFO  [main] mapreduce.JobSubmitter: Cleaning up
>> the staging area /user/root/.staging/job_1437395072897_1775
>>
>> Exception in thread "main"
>> org.apache.hadoop.hbase.TableNotFoundException:
>> fma.er_keyed_gz_hashed_indexed_meterkey_immutable
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegionInMeta(ConnectionManager.java:1319)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1135)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1118)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.locateRegion(ConnectionManager.java:1075)
>>
>>         at
>> org.apache.hadoop.hbase.client.ConnectionManager$HConnectionImplementation.getRegionLocation(ConnectionManager.java:909)
>>
>>         at
>> org.apache.hadoop.hbase.client.HTable.getRegionLocation(HTable.java:528)
>>
>>         at
>> org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.getSplits(TableInputFormatBase.java:165)
>>
>>         at
>> org.apache.hadoop.mapreduce.JobSubmitter.writeNewSplits(JobSubmitter.java:597)
>>
>>         at
>> org.apache.hadoop.mapreduce.JobSubmitter.writeSplits(JobSubmitter.java:614)
>>
>>         at
>> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:492)
>>
>>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1296)
>>
>>         at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1293)
>>
>>         at java.security.AccessController.doPrivileged(Native Method)
>>
>>         at javax.security.auth.Subject.doAs(Subject.java:415)
>>
>>         at
>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1628)
>>
>>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:1293)
>>
>>         at
>> org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1314)
>>
>>         at
>> org.apache.hadoop.hbase.mapreduce.RowCounter.main(RowCounter.java:191)
>>
>
>

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