Re: notes on building fds in etch and a failed build question

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Tamas Bagyal wrote:
Rich Megginson wrote:
Tamas Bagyal wrote:
Rich Megginson wrote:
Bagyal Tamas wrote:
Rich Megginson wrote:
Tamas Bagyal wrote:
hello Ryan,

you tried this version? i have two fedora-ds 1.0.4 in mmr configuration. i migrate one of those to 1.1 (builded by your and Rich's instrutctions). but i have a problem with memory usage of ns-slapd process. initially mem usage is 18.5% but after 2 hours this changed to 23.1% and growed until killed by kernel. (i think...)

mostly read transactions happen (dns) with a few write (cups).
this is a debian etch, mem size is 512 mbyte (i know this is too low, but this is a test environment). cache size of slapd is 67108864.
Are you using SSL?  Anything interesting in your server error log?

I running the setupssl2.sh but not use any ssl connection. error log shows nothing, only the server start.
The reason I ask is that older versions of the NSS crypto/SSL libraries had a memory leak. NSS 3.11.7 does not have this problem. But you would only see the problem if you were using SSL connections.

ok. I tried again from begining. fresh install, no ssl, no migration, used the setup-ds-admi.pl and setup the mmr with a fedora-ds 1.0.4. but nothing changed, memory usage growing...
All setting is default except the mmr/changelog and access.log is off.

errors:

 Fedora-Directory/1.1.0 B2008.059.1017
        tower.fmintra.hu:389 (/opt/dirsrv/etc/dirsrv/slapd-tower)


[05/Mar/2008:10:19:20 +0100] - dblayer_instance_start: pagesize: 4096, pages: 128798, procpages: 5983
[05/Mar/2008:10:19:20 +0100] - cache autosizing: import cache: 204800k
[05/Mar/2008:10:19:21 +0100] - li_import_cache_autosize: 50, import_pages: 51200, pagesize: 4096 [05/Mar/2008:10:19:21 +0100] - WARNING: Import is running with nsslapd-db-private-import-mem on; No other process is allowed to access the database [05/Mar/2008:10:19:21 +0100] - dblayer_instance_start: pagesize: 4096, pages: 128798, procpages: 5983
[05/Mar/2008:10:19:21 +0100] - cache autosizing: import cache: 204800k
[05/Mar/2008:10:19:21 +0100] - li_import_cache_autosize: 50, import_pages: 51200, pagesize: 4096
[05/Mar/2008:10:19:21 +0100] - import userRoot: Beginning import job...
[05/Mar/2008:10:19:21 +0100] - import userRoot: Index buffering enabled with bucket size 100 [05/Mar/2008:10:19:21 +0100] - import userRoot: Processing file "/tmp/ldifZHth0D.ldif" [05/Mar/2008:10:19:21 +0100] - import userRoot: Finished scanning file "/tmp/ldifZHth0D.ldif" (9 entries) [05/Mar/2008:10:19:21 +0100] - import userRoot: Workers finished; cleaning up...
[05/Mar/2008:10:19:21 +0100] - import userRoot: Workers cleaned up.
[05/Mar/2008:10:19:21 +0100] - import userRoot: Cleaning up producer thread... [05/Mar/2008:10:19:21 +0100] - import userRoot: Indexing complete. Post-processing...
[05/Mar/2008:10:19:21 +0100] - import userRoot: Flushing caches...
[05/Mar/2008:10:19:21 +0100] - import userRoot: Closing files...
[05/Mar/2008:10:19:21 +0100] - All database threads now stopped
[05/Mar/2008:10:19:21 +0100] - import userRoot: Import complete. Processed 9 entries in 0 seconds. (inf entries/sec) [05/Mar/2008:10:19:22 +0100] - Fedora-Directory/1.1.0 B2008.059.1017 starting up [05/Mar/2008:10:19:22 +0100] - I'm resizing my cache now...cache was 209715200 and is now 8000000 [05/Mar/2008:10:19:22 +0100] - slapd started. Listening on All Interfaces port 389 for LDAP requests [05/Mar/2008:10:22:23 +0100] NSMMReplicationPlugin - changelog program - cl5Open: failed to open changelog [05/Mar/2008:10:22:24 +0100] NSMMReplicationPlugin - changelog program - changelog5_config_add: failed to start changelog [05/Mar/2008:10:26:49 +0100] NSMMReplicationPlugin - agmt="cn=replica to backup" (backup:389): Replica has a different generation ID than the local data. [05/Mar/2008:10:32:00 +0100] NSMMReplicationPlugin - repl_set_mtn_referrals: could not set referrals for replica dc=fmintra,dc=hu: 32 [05/Mar/2008:10:32:00 +0100] NSMMReplicationPlugin - multimaster_be_state_change: replica dc=fmintra,dc=hu is going offline; disabling replication [05/Mar/2008:10:32:00 +0100] - WARNING: Import is running with nsslapd-db-private-import-mem on; No other process is allowed to access the database [05/Mar/2008:10:32:13 +0100] - import userRoot: Workers finished; cleaning up...
[05/Mar/2008:10:32:13 +0100] - import userRoot: Workers cleaned up.
[05/Mar/2008:10:32:13 +0100] - import userRoot: Indexing complete. Post-processing...
[05/Mar/2008:10:32:13 +0100] - import userRoot: Flushing caches...
[05/Mar/2008:10:32:13 +0100] - import userRoot: Closing files...
[05/Mar/2008:10:32:14 +0100] - import userRoot: Import complete. Processed 12242 entries in 13 seconds. (941.69 entries/sec) [05/Mar/2008:10:32:14 +0100] NSMMReplicationPlugin - multimaster_be_state_change: replica dc=fmintra,dc=hu is coming online; enabling replication

memory usage by top:

top - 10:58:21 up 25 days, 22:36, 2 users, load average: 0.01, 0.13, 0.22
Tasks:  61 total,   2 running,  59 sleeping,   0 stopped,   0 zombie
Cpu(s): 0.0%us, 0.0%sy, 0.0%ni,100.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem:    515192k total,   189600k used,   325592k free,    36472k buffers
Swap:   489848k total,    18292k used,   471556k free,   106188k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
27647 fds       15   0  464m  47m  25m S  0.0  9.4   1:34.57 ns-slapd


top - 11:23:12 up 25 days, 23:01, 2 users, load average: 0.36, 0.27, 0.20
Tasks:  61 total,   2 running,  59 sleeping,   0 stopped,   0 zombie
Cpu(s): 3.0%us, 0.0%sy, 0.0%ni, 96.0%id, 1.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem:    515192k total,   210700k used,   304492k free,    36488k buffers
Swap:   489848k total,    18288k used,   471560k free,   117204k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
27647 fds       15   0  473m  59m  28m S  3.0 11.9   2:52.77 ns-slapd


top - 11:48:26 up 25 days, 23:26, 2 users, load average: 0.02, 0.08, 0.10
Tasks:  61 total,   1 running,  60 sleeping,   0 stopped,   0 zombie
Cpu(s): 3.0%us, 0.0%sy, 0.0%ni, 97.0%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem:    515192k total,   222756k used,   292436k free,    36520k buffers
Swap:   489848k total,    18288k used,   471560k free,   118932k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
27647 fds       15   0  483m  72m  30m S  0.0 14.4   4:12.04 ns-slapd


top - 13:31:42 up 26 days, 1:09, 2 users, load average: 0.28, 0.17, 0.15
Tasks:  61 total,   2 running,  59 sleeping,   0 stopped,   0 zombie
Cpu(s): 1.1%us, 0.0%sy, 0.0%ni, 98.9%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem:    515192k total,   285572k used,   229620k free,    36540k buffers
Swap:   489848k total,    18288k used,   471560k free,   140412k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
27647 fds       15   0  523m 116m  34m S  0.0 23.3   9:35.65 ns-slapd

Can you post your dse.ldif to pastebin.com? Be sure to omit or obscure any sensitive data first. I'd like to see what all of your cache settings are. Normally the server will increase in memory usage until the caches are full, then memory usage should level off. The speed at which this occurs depends on usage.

http://www.pastebin.org/22477

i forget a thing. i use some custom schema (ldapdns, ibm... etc.) if this is changed anything. (but i think this is not relevant info)

When the kernel kills your server, how much memory is it using? Is there anything in the server error log at around the time the kernel kills it?

i'm not sure, but at the time use the maximum as possible (512ram + 512 swap available) i think around 940mb, the kernel first kill some other processes, like mc, and after these the ns-slapd. I can't see anything in the log file, just the server start.

Finally, if you are convinced that there is a real memory leak in the server, would it be possible for you to run it under valgrind? Just running it under valgrind for 30 minutes or so should reveal any memory leaks in normal usage.

http://www.pastebin.org/22484

I can't understand this output, I never used valgrind before. I hope used the right options for valgrind.


can you tell me what mean the valgrind's output?

thanks,

KEeF


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