[DERBY-1661] Create index on large tables fails with too many open files , FileNotFoundException.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 10.0.2.0, 10.0.2.1, 10.1.1.0, 10.1.2.1, 10.1.3.1, 10.2.1.6
• Fix Version/s: 10.2.1.6
• Component/s: Store
• Assignee: Sunitha Kambhampati
• Reporter: Sunitha Kambhampati
• Created: 10/Aug/06 16:34
• Updated: 13/Dec/07 09:05
• Resolved: 10/Aug/06 23:38

Description

Create index fails on a table with 18million rows during sort with too many open files error

This error was first seen when running against a tpcc-like test. The test creates the tables, inserts data and then creates the indexes & adds constraints.

Customer table has 18 million rows in this case. The below error is thrown on create index.

ij> create index customer_last on customer(c_w_id, c_d_id, c_last);
ERROR XSDF1: Exception during creation of file /home/cloudtst/SinglePerf/testruns/scripts/dbtpcc/tmp/T1128794811044.tmp for container
ERROR XJ001: Java exception: '/home/cloudtst/SinglePerf/testruns/scripts/dbtpcc/tmp/T1128794811044.tmp (Too many open files): java.io.FileNotFoundException'.
ij

Issue Links

• is related to: DERBY-1676 Dynamically change the max merge runs in a merge phase during external sorting.
• is related to: DERBY-1677 Investigate increasing the memory limit that is used to calculate the sortbuffer size for sorting.
• is related to: DERBY-1679 Improve usage of file resources when sorting