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Re: Delta-syncrepl and latency
On 5/9/07, Quanah Gibson-Mount <email@example.com> wrote:
--On May 9, 2007 2:51:23 PM -0400 Sam Tran <firstname.lastname@example.org> wrote:
> On 5/9/07, Quanah Gibson-Mount <email@example.com> wrote:
>> --On May 9, 2007 12:46:18 PM -0400 Sam Tran <firstname.lastname@example.org> wrote:
>> > On 5/8/07, Quanah Gibson-Mount <email@example.com> wrote:
>> > [snip]
>> >> How have you tuned DB_CONFIG for the accesslog backend?
>> >> --Quanah
>> > Here is my DB_CONFIG for the accesslog backend:
>> > set_cachesize 0 52428800 0
>> > set_lg_regionmax 1048576
>> > set_lg_max 10485760
>> > set_lg_bsize 2097152
>> > set_lg_dir /var/log/openldap_bdb/accesslog
>> > set_tmp_dir /tmp
>> Have you looked at the output of db_stat -m to see how things are
> I ran 1,000 sequential writes on the provider. Then run the command
> you specified. Here is the output:
> According to the output most of the data is in cache.
> It took about 5 minutes for the consumer to get the updates.
> I still don't know why.
Well, things seem fine from the accesslog DB side. On my servers @
Stanford, the largest latency I've seen is about 7 seconds. I wonder if
something is slow on your network.
I don't think the network speed is the problem here.
I am running a host-based firewall on the consumer server. I only
allow traffic on port 636 between the consumer and the provider. Do I
need to open other holes for delta-syncrepl to work?