look at iscconfig increase number of semaphores check ti with kernel
parameters
/opt/interbase/isc_config:
#ANY_LOCK_MEM_SIZE 98304
#V4_LOCK_SEM_COUNT 32 **************************** here
#ANY_LOCK_SEM_COUNT 32
#V4_LOCK_SIGNAL 16
#ANY_LOCK_SIGNAL 16
#V4_EVENT_MEM_SIZE 32768
#ANY_EVENT_MEM_SIZE 32768
#DATABASE_CACHE_PAGES 75
#SERVER_PRIORITY_CLASS 1
#SERVER_CLIENT_MAPPING 4096
#SERVER_WORKING_SIZE_MIN 0
#SERVER_WORKING_SIZE_MAX 0
#V4_LOCK_GRANT_ORDER 1
#LOCK_HASH_SLOTS 101
#DEADLOCK_TIMEOUT 10
#LOCK_ACQUIRE_SPINS 0
#CONNECTION_TIMEOUT 180
#DUMMY_PACKET_INTERVAL 60
#TMP_DIRECTORY 20000 "/opt/interbase/tmp"
#EXTERNAL_FUNCTION_DIRECTORY "/opt/interbase/udf"
#TCP_REMOTE_BUFFER 8192
#CPU_AFFINITY 1
#TCP_NO_NAGLE 0


to be sure that you dont exhaust this ...
Claus

mgastde wrote:

>Hi,
>
>what does this error mean:
>
>Fatal lock manager error: semop failed (acquire), errno: 43
>
>How can I avoid it?
>
>System environment is a Firebird Clasic Server version 1.0 (build 796)
>on a SMP machine under Linux kernel version 2.2.14 with about 20 open
>connenctions.
>
>Micha
>
>
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