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ITS#7222 fix bdb/hdb cache hang under high load

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Hrvoje 2012-05-31 10:48:38 -07:00 committed by Howard Chu
parent 4272551a01
commit 243a2316d3
1 changed files with 9 additions and 2 deletions
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11
servers/slapd/back-bdb/cache.c
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@ -1361,7 +1361,7 @@ bdb_cache_delete(
DB_LOCK *lock )
{
EntryInfo *ei = BEI(e);
int rc, busy = 0;
int rc, busy = 0, counter = 0;
assert( e->e_private != NULL );
@ -1378,7 +1378,7 @@ bdb_cache_delete(
bdb_cache_entryinfo_unlock( ei );
while ( busy ) {
while ( busy && counter < 1000) {
ldap_pvt_thread_yield();
busy = 0;
bdb_cache_entryinfo_lock( ei );
@ -1387,6 +1387,13 @@ bdb_cache_delete(
ei->bei_finders > 0 )
busy = 1;
bdb_cache_entryinfo_unlock( ei );
counter ++;
}
if( busy ) {
bdb_cache_entryinfo_lock( ei );
ei->bei_state ^= CACHE_ENTRY_DELETED;
bdb_cache_entryinfo_unlock( ei );
return DB_LOCK_DEADLOCK;
}
/* Get write lock on the data */