Ok - before you reset the MAX_FILESIZE, it'd be help if you could open an HBase shell and let us know what the current values are for your data table and index table:
describe YOUR_DATA_TABLE; describe YOUR_INDEX_TABLE; If your data table is 8GB, I'd guess your index should be 4GB at the smallest. I think 1GB would be too low. Thanks, James On Sat, Mar 12, 2016 at 12:23 PM, anil gupta <[email protected]> wrote: > Thanks for the reply, James. We have 2 global secondary index in this > table and both of them exhibit same behavior. Going to give your > suggestion a try. I also think that regionsize for secondary index should > not be 8GB. Will try to set the regionsize=1GB for secondary index and see > how it goes. > > On Sat, Mar 12, 2016 at 12:00 PM, James Taylor <[email protected]> > wrote: > >> Hi Anil, >> Phoenix estimates the ratio between the data table and index table as >> shown below to attempt to get the same number of splits in your index table >> as your data table. >> >> /* >> * Approximate ratio between index table size and data table size: >> * More or less equal to the ratio between the number of key value >> * columns in each. We add one to the key value column count to >> * take into account our empty key value. We add 1/4 for any key >> * value data table column that was moved into the index table row key. >> */ >> >> Phoenix then multiples the MAX_FILESIZE of the data table to come up with >> a reasonable default value for the index table. Can you check in the HBase >> shell what the MAX_FILESIZE is for the data table versus the index table? >> Maybe there's a bug in Phoenix in how it calculates this ration. >> >> You can override the MAX_FILESIZE for your index through an ALTER TABLE >> statement: >> >> ALTER TABLE my_table_schema.my_index_name SET MAX_FILESIZE=8589934592 >> >> You can ignore the warnings you get in sqlline and you can verify the >> setting took affect through the HBase shell by running the following >> command: >> >> describe 'MY_TABLE_SCHEMA.MY_INDEX_NAME' >> >> HTH, >> >> James >> >> >> On Sat, Mar 12, 2016 at 10:18 AM, anil gupta <[email protected]> >> wrote: >> >>> Hi, >>> >>> We are using HDP2.3.4 and Phoenix4.4. >>> Our global index table is doing excessive splitting. Our cluster region >>> size setting is 8 Gigabytes but global index table has 18 regions and max >>> size of region is 10.9 MB. >>> This is definitely not a good behavior. I looked into tuning ( >>> https://phoenix.apache.org/tuning.html) and i could not find anything >>> relevant. Is this region splitting intentionally done by Phoenix for >>> secondary index tables? >>> >>> Here is the output of du command: >>> [ag@hdpclient1 ~]$ hadoop fs -du -h >>> /apps/hbase/data/data/default/SEC_INDEX >>> 761 /apps/hbase/data/data/default/SEC_INDEX/.tabledesc >>> 0 /apps/hbase/data/data/default/SEC_INDEX/.tmp >>> 9.3 M >>> /apps/hbase/data/data/default/SEC_INDEX/079db2c953c30a8270ecbd52582e81ff >>> 2.9 M >>> /apps/hbase/data/data/default/SEC_INDEX/0952c070234c05888bfc2a01645e9e88 >>> 10.9 M >>> /apps/hbase/data/data/default/SEC_INDEX/0d69bbb8991b868f0437b624410e9bed >>> 8.2 M >>> /apps/hbase/data/data/default/SEC_INDEX/206562491fd1de9db48cf422dd8c2059 >>> 7.9 M >>> /apps/hbase/data/data/default/SEC_INDEX/25318837ab8e1db6922f5081c840d2e7 >>> 9.5 M >>> /apps/hbase/data/data/default/SEC_INDEX/5369e0d6526b3d2cdab9937cb320ccb3 >>> 9.6 M >>> /apps/hbase/data/data/default/SEC_INDEX/62704ee3c9418f0cd48210a747e1f8ac >>> 7.8 M >>> /apps/hbase/data/data/default/SEC_INDEX/631376fc5515d7785b2bcfc8a1f64223 >>> 2.8 M >>> /apps/hbase/data/data/default/SEC_INDEX/6648d5396ba7a3c3bf884e5e1300eb0e >>> 9.4 M >>> /apps/hbase/data/data/default/SEC_INDEX/6e6e133580aea9a19a6b3ea643735072 >>> 8.1 M >>> /apps/hbase/data/data/default/SEC_INDEX/8535a5c8a0989dcdfad2b1e9e9f3e18c >>> 7.8 M >>> /apps/hbase/data/data/default/SEC_INDEX/8ffa32e0c6357c2a0b413f3896208439 >>> 9.3 M >>> /apps/hbase/data/data/default/SEC_INDEX/c27e2809cd352e3b06c0f11d3e7278c6 >>> 8.0 M >>> /apps/hbase/data/data/default/SEC_INDEX/c4f5a98ce6452a6b5d052964cc70595a >>> 8.1 M >>> /apps/hbase/data/data/default/SEC_INDEX/c578d3190363c32032b4d92c8d307215 >>> 7.9 M >>> /apps/hbase/data/data/default/SEC_INDEX/d750860bac8aa372eb28aaf055ea63e7 >>> 9.6 M >>> /apps/hbase/data/data/default/SEC_INDEX/e9756aa4c7c8b9bfcd0857b43ad5bfbe >>> 8.0 M >>> /apps/hbase/data/data/default/SEC_INDEX/ebaae6c152e82c9b74c473babaf644dd >>> >>> -- >>> Thanks & Regards, >>> Anil Gupta >>> >> >> > > > -- > Thanks & Regards, > Anil Gupta >
