db-derby-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mike Matrigali (JIRA)" <derby-...@db.apache.org>
Subject [jira] Created: (DERBY-1189) latch self deadlock when running inplace compress
Date Thu, 06 Apr 2006 23:41:28 GMT
latch self deadlock when running inplace compress
-------------------------------------------------

         Key: DERBY-1189
         URL: http://issues.apache.org/jira/browse/DERBY-1189
     Project: Derby
        Type: Bug

  Components: Store  
    Versions: 10.1.1.0, 10.1.1.1, 10.1.1.2, 10.1.2.0, 10.1.2.1, 10.1.2.2, 10.1.2.3, 10.2.0.0
   
    Reporter: Mike Matrigali
 Assigned to: Mike Matrigali 
     Fix For: 10.2.0.0


The following script , before the fix, causes online compress to attempt to latch the same
page twice in a nested user transaction causing a self deadlock of the form:
ij> CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'T1', 1, 1, 1);
ERROR 40001: A lock could not be obtained due to a deadlock, cycle of locks and
waiters is:
Lock : LATCH, T1, Page(35,Container(0, 1728))
  Waiting XID : {385920, BaseContainerHandle:(Container(0, 1728))} , APP, CALL S
YSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'T1', 1, 1, 1)
  Granted XID : {385920, BaseContainerHandle:(Container(0, 1728))}
. The selected victim is XID : 385920.

script that reproduces it:
drop table t1;
create table t1 (i integer primary key, j integer, c char(200));
insert into t1 values (1, 1, 'a');
insert into t1 (select t1.i + 2,    t1.j + 2,    t1.c from t1);
insert into t1 (select t1.i + 4,    t1.j + 4,    t1.c from t1);
insert into t1 (select t1.i + 8,    t1.j + 8,    t1.c from t1);
insert into t1 (select t1.i + 16,   t1.j + 16,   t1.c from t1);
insert into t1 (select t1.i + 32,   t1.j + 32,   t1.c from t1);
insert into t1 (select t1.i + 64,   t1.j + 64,   t1.c from t1);
insert into t1 (select t1.i + 128,  t1.j + 128,  t1.c from t1);
insert into t1 (select t1.i + 256,  t1.j + 256,  t1.c from t1);
insert into t1 (select t1.i + 512,  t1.j + 512,  t1.c from t1);
insert into t1 (select t1.i + 1024, t1.j + 1024, t1.c from t1);

delete from t1 where j=1;

CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'T1', 1, 1, 1);

delete from t1 where j=2;

CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'T1', 1, 1, 1);

delete from t1 where i > 1024;

CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'T1', 1, 1, 1);

delete from t1 where i < 512;

CALL SYSCS_UTIL.SYSCS_INPLACE_COMPRESS_TABLE('APP', 'T1', 1, 1, 1);




-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
   http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
   http://www.atlassian.com/software/jira


Mime
View raw message