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ITS#7616 defer searches while consumer refreshing

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This commit is contained in:
Howard Chu 2014-05-23 06:56:16 -07:00
parent 5a08b66141
commit cf4aa8f9d9
1 changed files with 32 additions and 6 deletions
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38
servers/slapd/syncrepl.c
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@ -148,6 +148,8 @@ static int syncrepl_add_glue_ancestors(
/* delta-mmr overlay handler */
static int syncrepl_op_modify( Operation *op, SlapReply *rs );
static int syncrepl_op_search( Operation *op, SlapReply *rs );
/* callback functions */
static int dn_callback( Operation *, SlapReply * );
static int nonpresent_callback( Operation *, SlapReply * );
@ -216,16 +218,14 @@ init_syncrepl(syncinfo_t *si)
if ( !syncrepl_ov.on_bi.bi_type ) {
syncrepl_ov.on_bi.bi_type = "syncrepl";
syncrepl_ov.on_bi.bi_op_modify = syncrepl_op_modify;
syncrepl_ov.on_bi.bi_op_search = syncrepl_op_search;
overlay_register( &syncrepl_ov );
}
/* delta-MMR needs the overlay, nothing else does.
* This must happen before accesslog overlay is configured.
*/
if ( si->si_syncdata &&
!overlay_is_inst( si->si_be, syncrepl_ov.on_bi.bi_type )) {
if (!overlay_is_inst( si->si_be, syncrepl_ov.on_bi.bi_type )) {
overlay_config( si->si_be, syncrepl_ov.on_bi.bi_type, -1, NULL, NULL );
if ( !ad_reqMod ) {
/* delta-MMR needs this. Must happen before accesslog overlay is configured. */
if ( si->si_syncdata && !ad_reqMod ) {
const char *text;
logschema *ls = &accesslog_sc;
@ -1179,6 +1179,7 @@ do_syncrep2(
} else {
rc = -2;
}
si->si_refreshDone = 1;
goto done;
case LDAP_RES_INTERMEDIATE:
@ -2163,6 +2164,31 @@ syncrepl_op_modify( Operation *op, SlapReply *rs )
return SLAP_CB_CONTINUE;
}
static int
syncrepl_op_search( Operation *op, SlapReply *rs )
{
slap_overinst *on = (slap_overinst *)op->o_bd->bd_info;
syncinfo_t *si;
/* Allow syncrepl internal searches */
if ( op->o_conn->c_conn_idx == -1 )
return SLAP_CB_CONTINUE;
/* Check if any of our consumers are refreshing */
for ( si = op->o_bd->be_syncinfo; si; si = si->si_next ) {
/* If we have some state, allow other consumers to progress */
if ( si->si_cookieState->cs_num > 0 &&
op->o_sync > SLAP_CONTROL_IGNORED )
return SLAP_CB_CONTINUE;
/* If we have any consumer refreshing, reject searches */
if ( !si->si_refreshDone ) {
send_ldap_error( op, rs, LDAP_BUSY, "syncrepl refresh in progress" );
return rs->sr_err;
}
}
return SLAP_CB_CONTINUE;
}
static int
syncrepl_message_to_op(
syncinfo_t *si,