openldap-bugs November 2012

openldap-bugs@openldap.org

30 participants
100 discussions

Re: (ITS#7457) residentialPerson contains preferredDeliveryMethod twice
by kurt＠OpenLDAP.org 30 Nov '12

30 Nov '12

Per RFC 4519. See list archives for discussion. -- Kurt On Nov 30, 2012, at 10:50 AM, peter(a)adpm.de wrote: > Full_Name: Peter Marschall > Version: 2.4.33 > OS: Linux > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (178.2.172.201) > > > Hi, > > trying to convert the residentialPerson objectclass to a format for another > directory server type, I noticed that it contains the attribute > preferredDeliveryMethod twice in its MAY list. > > I do not know if this is an issue, but wanted to report it nonetheless. > > Thanks for OpenLDAP > Peter >

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(ITS#7457) residentialPerson contains preferredDeliveryMethod twice
by peter＠adpm.de 30 Nov '12

30 Nov '12

Full_Name: Peter Marschall Version: 2.4.33 OS: Linux URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (178.2.172.201) Hi, trying to convert the residentialPerson objectclass to a format for another directory server type, I noticed that it contains the attribute preferredDeliveryMethod twice in its MAY list. I do not know if this is an issue, but wanted to report it nonetheless. Thanks for OpenLDAP Peter

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Re: (ITS#7456) slapo-smbk5pwd: Makefile with -L
by fumiyas＠osstech.jp 30 Nov '12

30 Nov '12

Hi, At Wed, 28 Nov 2012 20:04:41 GMT, michael(a)stroeder.com wrote: > I'd like to propose the following patch to Makefile of slapo-smbk5pwd to ease > building it without installed OpenLDAP client libs: This ITS is a dup of #7309. http://www.openldap.org/its/index.cgi?findid=7309 And see also: http://www.openldap.org/its/index.cgi?findid=7308 This problem is fixed in master, but not in 2.4 branch... > diff --git a/contrib/slapd-modules/smbk5pwd/Makefile > b/contrib/slapd-modules/smbk5pwd/Makefile > index 46b340a..01c7bc2 100644 > --- a/contrib/slapd-modules/smbk5pwd/Makefile > +++ b/contrib/slapd-modules/smbk5pwd/Makefile > @@ -26,7 +26,7 @@ INCS=$(LDAP_INC) $(HEIMDAL_INC) $(SSL_INC) > > HEIMDAL_LIB=-L/usr/heimdal/lib -lkrb5 -lkadm5srv > SSL_LIB=-lcrypto > -LDAP_LIB=-lldap_r -llber > +LDAP_LIB=-L../../../libraries/libldap_r/.libs/ -lldap_r -llber > LIBS=$(LDAP_LIB) $(HEIMDAL_LIB) $(SSL_LIB) > > prefix=/usr/local -- -- Name: SATOH Fumiyasu (fumiyas @ osstech co jp) -- Business Home: http://www.OSSTech.co.jp/ -- GitHub Home: https://GitHub.com/fumiyas/

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Re: (ITS#7455) MDB database grows without bound
by hyc＠symas.com 30 Nov '12

30 Nov '12

This is a multi-part message in MIME format. --------------040901020606020603090609 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Howard Chu wrote: > quanah(a)OpenLDAP.org wrote: >> Full_Name: Quanah Gibson-Mount >> Version: 2.4.33 >> OS: Linux 2.6 >> URL: ftp://ftp.openldap.org/incoming/ >> Submission from: (NULL) (74.196.25.250) >> >> >> I have a very small DB (about 25MB from a fresh slapadd). However, the data.mdb >> file grows by about 50MB a day. I.e., the database size on disk *doubles* every >> day. It is now up to 571MB in size after >> >> >> Here is the DB after a fresh slapadd: >> zimbra@zre-ldap002:~/data/ldap/mdb/db$ du -c -h data.mdb >> 25M data.mdb >> >> Here is the DB on the production server: >> [zimbra@ldap01-zcs db]$ du -c -h data.mdb >> 571M data.mdb > > Based on the mdb_stat output you pasted, this is simply a case of overflow > pages not reusing freelist pages. The significant info here is the freelist > info and the number of overflow pages used in the id2e database. Here's the patch we're currently testing for this issue. It appears to work but is maybe not being aggressive enough in reclaiming space. We may want to increase the number of retries a bit more. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/ --------------040901020606020603090609 Content-Type: text/plain; charset=UTF-8; name="diff.txt" Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename="diff.txt" diff --git a/libraries/libmdb/mdb.c b/libraries/libmdb/mdb.c index 251ab6a..117b402 100644 --- a/libraries/libmdb/mdb.c +++ b/libraries/libmdb/mdb.c @@ -1242,6 +1242,7 @@ mdb_page_alloc(MDB_cursor *mc, int num, MDB_page **mp) MDB_page *np; pgno_t pgno = P_INVALID; MDB_ID2 mid; + txnid_t oldest = 0, last; int rc; *mp = NULL; @@ -1254,12 +1255,11 @@ mdb_page_alloc(MDB_cursor *mc, int num, MDB_page **mp) if (!txn->mt_env->me_pghead && txn->mt_dbs[FREE_DBI].md_root != P_INVALID) { /* See if there's anything in the free DB */ - int j; MDB_reader *r; MDB_cursor m2; MDB_node *leaf; MDB_val data; - txnid_t *kptr, last; + txnid_t *kptr; mdb_cursor_init(&m2, txn, FREE_DBI, NULL); if (!txn->mt_env->me_pgfirst) { @@ -1282,15 +1282,21 @@ again: last = *(txnid_t *)key.mv_data; } - /* Unusable if referred by a meta page or reader... */ - j = 1; - if (last < txn->mt_txnid-1) { - j = txn->mt_env->me_txns->mti_numreaders; - r = txn->mt_env->me_txns->mti_readers + j; - for (j = -j; j && (last<r[j].mr_txnid || !r[j].mr_pid); j++) ; + { + unsigned int i, nr; + txnid_t mr; + oldest = txn->mt_txnid - 1; + nr = txn->mt_env->me_txns->mti_numreaders; + r = txn->mt_env->me_txns->mti_readers; + for (i=0; i<nr; i++) { + if (!r[i].mr_pid) continue; + mr = r[i].mr_txnid; + if (mr < oldest) + oldest = mr; + } } - if (!j) { + if (oldest > last) { /* It's usable, grab it. */ MDB_oldpages *mop; @@ -1331,29 +1337,108 @@ none: if (txn->mt_env->me_pghead) { MDB_oldpages *mop = txn->mt_env->me_pghead; if (num > 1) { - /* FIXME: For now, always use fresh pages. We - * really ought to search the free list for a - * contiguous range. - */ - ; + MDB_cursor m2; + int retry = 2, readit = 0, n2 = num-1; + unsigned int i, j, k; + + /* If current list is too short, must fetch more and coalesce */ + if (mop->mo_pages[0] < (unsigned)num) + readit = 1; + + mdb_cursor_init(&m2, txn, FREE_DBI, NULL); + do { + if (readit) { + MDB_val key, data; + MDB_oldpages *mop2; + pgno_t *idl; + int exact; + + last = mop->mo_txnid + 1; + + /* We haven't hit the readers list yet? */ + if (!oldest) { + MDB_reader *r; + unsigned int nr; + txnid_t mr; + + oldest = txn->mt_txnid - 1; + nr = txn->mt_env->me_txns->mti_numreaders; + r = txn->mt_env->me_txns->mti_readers; + for (i=0; i<nr; i++) { + if (!r[i].mr_pid) continue; + mr = r[i].mr_txnid; + if (mr < oldest) + oldest = mr; + } + } + + /* There's nothing we can use on the freelist */ + if (oldest - last < 1) + break; + + exact = 0; + key.mv_data = &last; + key.mv_size = sizeof(last); + rc = mdb_cursor_set(&m2, &key, &data, MDB_SET, &exact); + if (rc) + return rc; + idl = (MDB_ID *) data.mv_data; + mop2 = malloc(sizeof(MDB_oldpages) + MDB_IDL_SIZEOF(idl) - 2*sizeof(pgno_t) + MDB_IDL_SIZEOF(mop->mo_pages)); + if (!mop2) + return ENOMEM; + /* merge in sorted order */ + i = idl[0]; j = mop->mo_pages[0]; mop2->mo_pages[0] = k = i+j; + mop->mo_pages[0] = P_INVALID; + while (i>0 || j>0) { + if (i && idl[i] < mop->mo_pages[j]) + mop2->mo_pages[k--] = idl[i--]; + else + mop2->mo_pages[k--] = mop->mo_pages[j--]; + } + txn->mt_env->me_pglast = last; + mop2->mo_txnid = last; + mop2->mo_next = mop->mo_next; + txn->mt_env->me_pghead = mop2; + free(mop); + mop = mop2; + /* Keep trying to read until we have enough */ + if (mop->mo_pages[0] < (unsigned)num) { + continue; + } + } + + /* current list has enough pages, but are they contiguous? */ + for (i=mop->mo_pages[0]; i>=(unsigned)num; i--) { + if (mop->mo_pages[i-n2] == mop->mo_pages[i] + n2) { + pgno = mop->mo_pages[i]; + i -= n2; + /* move any stragglers down */ + for (j=i+num; j<=mop->mo_pages[0]; j++) + mop->mo_pages[i++] = mop->mo_pages[j]; + mop->mo_pages[0] -= num; + break; + } + } + + /* Stop if we succeeded, or no more retries */ + if (!retry || pgno != P_INVALID) + break; + readit = 1; + retry--; + + } while (1); } else { /* peel pages off tail, so we only have to truncate the list */ pgno = MDB_IDL_LAST(mop->mo_pages); - if (MDB_IDL_IS_RANGE(mop->mo_pages)) { - mop->mo_pages[2]++; - if (mop->mo_pages[2] > mop->mo_pages[1]) - mop->mo_pages[0] = 0; + mop->mo_pages[0]--; + } + if (MDB_IDL_IS_ZERO(mop->mo_pages)) { + txn->mt_env->me_pghead = mop->mo_next; + if (mc->mc_dbi == FREE_DBI) { + mop->mo_next = txn->mt_env->me_pgfree; + txn->mt_env->me_pgfree = mop; } else { - mop->mo_pages[0]--; - } - if (MDB_IDL_IS_ZERO(mop->mo_pages)) { - txn->mt_env->me_pghead = mop->mo_next; - if (mc->mc_dbi == FREE_DBI) { - mop->mo_next = txn->mt_env->me_pgfree; - txn->mt_env->me_pgfree = mop; - } else { - free(mop); - } + free(mop); } } } --------------040901020606020603090609--

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Re: (ITS#7432) slapd crashes when removing members from a large group
by hyc＠symas.com 30 Nov '12

30 Nov '12

hyc(a)symas.com wrote: > marvin.mundry(a)uni-hamburg.de wrote: >> Full_Name: Marvin Mundry >> Version: 2.4.33 >> OS: Ubuntu 12.10 >> URL: https://idmswiki.rrz.uni-hamburg.de:8005/debug.tar.bz >> Submission from: (NULL) (134.100.2.183) >> > > Thanks for the report. The crash has been fixed in git, but your test runs > into another (known) issue in MDB. > > You're working with a very large entry, which libmdb stores in overflow pages. > In the current version of libmdb, freespace management for overflow pages is > not fully implemented, so every time you update the entry libmdb will always > use new pages (instead of reusing old pages). Thus, after a few hundred > operations, your 1GB map will be exhausted. > > It looks like you won't be able to use back-mdb until this feature is fully > implemented in libmdb. The overflow page freespace management issue is being addressed in ITS#7455. A patch is currently being tested. -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#7444) Check the return value of ldap_pvt_thread_set_concurrency
by hyc＠symas.com 30 Nov '12

30 Nov '12

Tianyin Xu wrote: > > On Sun, Nov 25, 2012 at 7:54 PM, Howard Chu <hyc(a)symas.com > <mailto:hyc@symas.com>> wrote: > > tixu(a)cs.ucsd.edu <mailto:tixu@cs.ucsd.edu> wrote: > > Full_Name: Tianyin Xu > Version: 2.4.33 > OS: Ubuntu 12.04 (actually doesn't matter) > URL: > Submission from: (NULL) (2607:f720:1300:1241:590b:49c:__889f:7b21) > > > Hi, all, > > Still the verbosity idea. In the current version of slapd, when > handling users' > "concurrency" setting, slapd does not check the return value of > "ldap_pvt_thread_set___concurrency" (essentially the return value of > "pthread_setconcurrency") to see whether the setting is successful or not. > > So when the user setting is inappropriate (i.e., too big), slapd says > nothing. > But users have no way to be aware of such configuration failure. I > suggest to > check and notify users in this case. > > > pthread_setconcurrency is a no-op on Linux systems. Even on systems where > this setting might have an effect, it is generally unused. We have more > important things to worry about than this. > > > Yes, I understand that user configuration is never a high-priority issue. > That's why I attached my patch which simply checks the return value, and > prints out a log messge to notify users. The patch itself does not have any > side effect to other part of code. > > I personally think the verbosity idea can improve the system reactions to > users' configurations including this one and its #7443. It is safe (no side > effect) and easy to do (simply adding some log messages), but can greatly > improve the usability and friendlyness to configurations. If you agree, I'm > happy to write patches and corresponding code. We appreciate your desire to help, but as I said before, these two directives are essentially unused in 99.999% of deployments. If you're looking for code to improve, I suggest you review some of the other open reports in the ITS. > > Thanks, > Tianyin > > Here's the patch: > > --- ../openldap-2.4.33/servers/__slapd/bconfig.c 2012-10-10 > 05:18:49.000000000 -0700 > +++ servers/slapd/bconfig.c 2012-11-16 14:52:37.211421828 -0800 > @@ -1530,7 +1530,14 @@ > break; > > case CFG_CONCUR: > - ldap_pvt_thread_set___concurrency(c->value_int); > + > + > if(ldap_pvt_thread_set___concurrency(c->value_int) != 0) > { > + snprintf( c->cr_msg, sizeof( c->cr_msg ), > + "concurrency=%d is not > valid; using > the default setting", > + c->value_int ); > + Debug(LDAP_DEBUG_ANY, "%s: %s.\n", > c->log, > c->cr_msg, 0 ); > + > + } > break; > > case CFG_THREADS: > > > > -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#7455) MDB database grows without bound
by hyc＠symas.com 28 Nov '12

28 Nov '12

quanah(a)OpenLDAP.org wrote: > Full_Name: Quanah Gibson-Mount > Version: 2.4.33 > OS: Linux 2.6 > URL: ftp://ftp.openldap.org/incoming/ > Submission from: (NULL) (74.196.25.250) > > > I have a very small DB (about 25MB from a fresh slapadd). However, the data.mdb > file grows by about 50MB a day. I.e., the database size on disk *doubles* every > day. It is now up to 571MB in size after > > > Here is the DB after a fresh slapadd: > zimbra@zre-ldap002:~/data/ldap/mdb/db$ du -c -h data.mdb > 25M data.mdb > > Here is the DB on the production server: > [zimbra@ldap01-zcs db]$ du -c -h data.mdb > 571M data.mdb Based on the mdb_stat output you pasted, this is simply a case of overflow pages not reusing freelist pages. The significant info here is the freelist info and the number of overflow pages used in the id2e database. Environment Info Map address: (nil) Map size: 85899345920 Page size: 4096 Max pages: 20971520 Number of pages used: 146230 Last transaction ID: 192037 Max readers: 126 Number of readers used: 10 Freelist Status Tree depth: 3 Branch pages: 7 Leaf pages: 668 Overflow pages: 32 Entries: 10671 Free pages: 141005 Status of Main DB Tree depth: 1 Branch pages: 0 Leaf pages: 1 Overflow pages: 0 Entries: 38 ... Status of ad2i Tree depth: 2 Branch pages: 1 Leaf pages: 20 Overflow pages: 0 Entries: 976 Status of cn Tree depth: 2 Branch pages: 1 Leaf pages: 231 Overflow pages: 0 Entries: 30224 Status of displayName Tree depth: 2 Branch pages: 1 Leaf pages: 91 Overflow pages: 0 Entries: 13625 Status of dn2i Tree depth: 2 Branch pages: 1 Leaf pages: 114 Overflow pages: 0 Entries: 5935 Status of entryCSN Tree depth: 2 Branch pages: 1 Leaf pages: 37 Overflow pages: 0 Entries: 2967 Status of entryUUID Tree depth: 2 Branch pages: 1 Leaf pages: 26 Overflow pages: 0 Entries: 2967 Status of givenName Tree depth: 2 Branch pages: 1 Leaf pages: 24 Overflow pages: 0 Entries: 3318 Status of id2e Tree depth: 3 Branch pages: 7 Leaf pages: 721 Overflow pages: 1937 Entries: 2968 Status of mail Tree depth: 2 Branch pages: 1 Leaf pages: 141 Overflow pages: 0 Entries: 33250 Status of objectClass Tree depth: 2 Branch pages: 1 Leaf pages: 9 Overflow pages: 0 Entries: 9353 Status of sn Tree depth: 2 Branch pages: 1 Leaf pages: 53 Overflow pages: 0 Entries: 7502 Status of uid Tree depth: 2 Branch pages: 1 Leaf pages: 13 Overflow pages: 0 Entries: 3148 ... -- -- Howard Chu CTO, Symas Corp. http://www.symas.com Director, Highland Sun http://highlandsun.com/hyc/ Chief Architect, OpenLDAP http://www.openldap.org/project/

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Re: (ITS#7455) MDB database grows without bound
by quanah＠zimbra.com 28 Nov '12

28 Nov '12

--On Wednesday, November 28, 2012 6:50 PM +0000 quanah(a)OpenLDAP.org wrote: > Here is the DB after a fresh slapadd: > zimbra@zre-ldap002:~/data/ldap/mdb/db$ du -c -h data.mdb > 25M data.mdb > > Here is the DB on the production server: > [zimbra@ldap01-zcs db]$ du -c -h data.mdb > 571M data.mdb In 1 week: 24,108 MODs 14 Adds 7 Deletes For a client with a large database of several gigs, this will quickly lead to significant problems, even with a large amount of free disk space. If I have a client with a 12GB DB, then they'll hit their DB maxsize of 80GB in just a few days. --Quanah -- Quanah Gibson-Mount Sr. Member of Technical Staff Zimbra, Inc A Division of VMware, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration

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(ITS#7456) slapo-smbk5pwd: Makefile with -L
by michael＠stroeder.com 28 Nov '12

28 Nov '12

Full_Name: Version: HEAD OS: URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (79.227.167.175) I'd like to propose the following patch to Makefile of slapo-smbk5pwd to ease building it without installed OpenLDAP client libs: diff --git a/contrib/slapd-modules/smbk5pwd/Makefile b/contrib/slapd-modules/smbk5pwd/Makefile index 46b340a..01c7bc2 100644 --- a/contrib/slapd-modules/smbk5pwd/Makefile +++ b/contrib/slapd-modules/smbk5pwd/Makefile @@ -26,7 +26,7 @@ INCS=$(LDAP_INC) $(HEIMDAL_INC) $(SSL_INC) HEIMDAL_LIB=-L/usr/heimdal/lib -lkrb5 -lkadm5srv SSL_LIB=-lcrypto -LDAP_LIB=-lldap_r -llber +LDAP_LIB=-L../../../libraries/libldap_r/.libs/ -lldap_r -llber LIBS=$(LDAP_LIB) $(HEIMDAL_LIB) $(SSL_LIB) prefix=/usr/local

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(ITS#7455) MDB database grows without bound
by quanah＠OpenLDAP.org 28 Nov '12

28 Nov '12

Full_Name: Quanah Gibson-Mount Version: 2.4.33 OS: Linux 2.6 URL: ftp://ftp.openldap.org/incoming/ Submission from: (NULL) (74.196.25.250) I have a very small DB (about 25MB from a fresh slapadd). However, the data.mdb file grows by about 50MB a day. I.e., the database size on disk *doubles* every day. It is now up to 571MB in size after Here is the DB after a fresh slapadd: zimbra@zre-ldap002:~/data/ldap/mdb/db$ du -c -h data.mdb 25M data.mdb Here is the DB on the production server: [zimbra@ldap01-zcs db]$ du -c -h data.mdb 571M data.mdb

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openldap-bugs November 2012