7.25.2. Global configurations#
7.25.2.1. Summary#
Groonga has the global configurations. You can access them by API.
7.25.2.2. Reference#
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int grn_get_lock_timeout(void)#
Returns the lock timeout.
grn_ctxacquires a lock for updating a shared value. If othergrn_ctxis already updating the same value,grn_ctxthat try to acquire a lock can’t acquires a lock. Thegrn_ctxthat can’t acquires a lock waits 1 millisecond and try to acquire a lock again. The try is donetimeouttimes. If thegrn_ctxthat can’t acquires a lock untiltimeouttimes, the tries are failed.The default lock timeout is
10000000. It means that Groonga doesn’t report a lock failure until about 3 hours. (1 * 10000000 [msec] = 10000 [sec] = 166.666… [min] = 2.777… [hour])- Returns:
The lock timeout.
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grn_rc grn_set_lock_timeout(int timeout)#
Sets the lock timeout.
See
grn_get_lock_timeout()about lock timeout.There are some special values for
timeout.0: It means that Groonga doesn’t retry acquiring a lock. Groonga reports a failure after one lock acquirement failure.negative value: It means that Groonga retries acquiring a lock until Groonga can acquire a lock.
- Parameters:
timeout – The new lock timeout.
- Returns:
GRN_SUCCESS. It doesn’t fail.