openldap-technical September 2023

openldap-technical@openldap.org

18 participants
12 discussions

slapd-watcher -i X refreshing unexpectedly...?
by cYuSeDfZfb cYuSeDfZfb 13 Sep '23

13 Sep '23

Hi, We noticed that, when using "slapd-watcher -i X" option to refresh display every X seconds, lagging replication statuses are often not cleared, when in fact replication as already recovered. In our MMR environment, we often see this for longer periods of time in slapd-watcher output : contextCSN: 20230913104435.605937Z#000000#0dd#000000 actv@2023-09-13 10:44:35, idle@2023-09-13 10:44:37 But when running like this: do timeout --foreground 1 $SLAPDWATCHER -b $BASE -D $LDAPBINDDN -w $ADMINPW "${SERVERURIS[@]}" -s ${SERVERIDS[*]} done the lagging replication lines change back to "idle, sync'd" immediately after replication has recovered. It feels like perhaps there is something wrong in the way the -i X option is implemented. For the rest: great tool to have!

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Trying to understand mdb_env_set_mapsize
by Siddharth Jain 12 Sep '23

12 Sep '23

Hello, can someone help me understand this parameter: http://www.lmdb.tech/doc/group__mdb.html#gaa2506ec8dab3d969b0e609cd82e619e5 1. why does a user need to specify this apriori? Other databases don't require user to declare the size of the db beforehand. its not something a user knows in advance. 2. quoting: "The size of the memory map is also the maximum size of the database.". what happens when the size of the db overflows this parameter? 3. what is the trade-off if a user sets this parameter too large than is necessary? S.

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openldap-technical September 2023