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Remove BDR 2.x support

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The BDR 2.x support was conceptual only and was never used in
production. As BDR 2.x will be EOL'd shortly, there is no risk it will
be needed.
This commit is contained in:
Ian Barwick
2020-01-16 09:51:11 +09:00
parent 7fdf2f1778
commit 4d4ed3bcd6
32 changed files with 39 additions and 3093 deletions
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66
repmgr.c
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@@ -84,8 +84,6 @@ typedef struct repmgrdSharedState
int current_electoral_term;
int candidate_node_id;
bool follow_new_primary;
/* BDR failover */
int bdr_failover_handler;
} repmgrdSharedState;
static repmgrdSharedState *shared_state = NULL;
@@ -131,12 +129,6 @@ PG_FUNCTION_INFO_V1(get_new_primary);
Datum reset_voting_status(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(reset_voting_status);
Datum am_bdr_failover_handler(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(am_bdr_failover_handler);
Datum unset_bdr_failover_handler(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(unset_bdr_failover_handler);
Datum set_repmgrd_pid(PG_FUNCTION_ARGS);
PG_FUNCTION_INFO_V1(set_repmgrd_pid);
@@ -241,7 +233,6 @@ repmgr_shmem_startup(void)
shared_state->voting_status = VS_NO_VOTE;
shared_state->candidate_node_id = UNKNOWN_NODE_ID;
shared_state->follow_new_primary = false;
shared_state->bdr_failover_handler = UNKNOWN_NODE_ID;
}
LWLockRelease(AddinShmemInitLock);
@@ -571,63 +562,6 @@ reset_voting_status(PG_FUNCTION_ARGS)
}
Datum
am_bdr_failover_handler(PG_FUNCTION_ARGS)
{
int node_id = UNKNOWN_NODE_ID;
bool am_handler = false;
if (!shared_state)
PG_RETURN_NULL();
if (PG_ARGISNULL(0))
PG_RETURN_NULL();
node_id = PG_GETARG_INT32(0);
LWLockAcquire(shared_state->lock, LW_SHARED);
if (shared_state->bdr_failover_handler == UNKNOWN_NODE_ID)
{
LWLockRelease(shared_state->lock);
LWLockAcquire(shared_state->lock, LW_EXCLUSIVE);
shared_state->bdr_failover_handler = node_id;
am_handler = true;
}
else if (shared_state->bdr_failover_handler == node_id)
{
am_handler = true;
}
LWLockRelease(shared_state->lock);
PG_RETURN_BOOL(am_handler);
}
Datum
unset_bdr_failover_handler(PG_FUNCTION_ARGS)
{
if (!shared_state)
PG_RETURN_NULL();
LWLockAcquire(shared_state->lock, LW_SHARED);
/* only do something if local_node_id is initialised */
if (shared_state->local_node_id != UNKNOWN_NODE_ID)
{
LWLockRelease(shared_state->lock);
LWLockAcquire(shared_state->lock, LW_EXCLUSIVE);
shared_state->bdr_failover_handler = UNKNOWN_NODE_ID;
}
LWLockRelease(shared_state->lock);
PG_RETURN_VOID();
}
/*
* Returns the repmgrd pid; or NULL if none set; or -1 if set but repmgrd
* process not running (TODO!)