Jonathan Ellis created CASSANDRA-8225:
-----------------------------------------
Summary: Production-capable COPY FROM
Key: CASSANDRA-8225
URL: https://issues.apache.org/jira/browse/CASSANDRA-8225
Project: Cassandra
Issue Type: New Feature
Components: Tools
Reporter: Jonathan Ellis
Fix For: 2.1.2
Via [~schumacr],
bq. I pulled down a sourceforge data generator and created a moc file of
500,000 rows that had an incrementing sequence number, date, and SSN. I then
used our COPY command and MySQL's LOAD DATA INFILE to load the file on my Mac.
Results were:
{noformat}
mysql> load data infile '/Users/robin/dev/datagen3.txt' into table p_test
fields terminated by ',';
Query OK, 500000 rows affected (2.18 sec)
{noformat}
C* 2.1.0 (pre-CASSANDRA-7405)
{noformat}
cqlsh:dev> copy p_test from '/Users/robin/dev/datagen3.txt' with delimiter=',';
500000 rows imported in 16 minutes and 45.485 seconds.
{noformat}
Cassandra 2.1.1:
{noformat}
cqlsh:dev> copy p_test from '/Users/robin/dev/datagen3.txt' with delimiter=',';
Processed 500000 rows; Write: 4037.46 rows/s
500000 rows imported in 2 minutes and 3.058 seconds.
{noformat}
[jbellis] 7405 gets us almost an order of magnitude improvement. Unfortunately
we're still almost 2 orders slower than mysql.
I don't think we can continue to tell people, "use sstableloader instead." The
number of users sophisticated enough to use the sstable writers is small and
(relatively) decreasing as our user base expands.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
