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genesis: better diagnostic message for bad genesis #7334

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genesis: better diagnostic message for bad genesis #7334

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2 changes: 2 additions & 0 deletions src/app/firedancer/topology.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1167,6 +1167,8 @@ fd_topo_configure_tile( fd_topo_tile_t * tile,

tile->replay.larger_max_cost_per_block = config->development.bench.larger_max_cost_per_block;

strncpy( tile->replay.genesis_path, config->paths.genesis, sizeof(tile->replay.genesis_path) );

/* not specified by [tiles.replay] */

strncpy( tile->replay.identity_key_path, config->paths.identity_key, sizeof(tile->replay.identity_key_path) );
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2 changes: 2 additions & 0 deletions src/disco/topo/fd_topo.h
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Expand Up @@ -387,6 +387,8 @@ struct fd_topo_tile {
ulong enable_features_cnt;
char enable_features[ 16 ][ FD_BASE58_ENCODED_32_SZ ];

char genesis_path[ PATH_MAX ];

int larger_max_cost_per_block;

ulong capture_start_slot;
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14 changes: 12 additions & 2 deletions src/discof/replay/fd_replay_tile.c
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Expand Up @@ -165,6 +165,7 @@ struct fd_replay_tile {
fd_vote_tracker_t * vote_tracker;

int has_genesis_hash;
char genesis_path[ PATH_MAX ];
uchar genesis_hash[ 32UL ];
ulong cluster_type;

Expand Down Expand Up @@ -1338,8 +1339,16 @@ maybe_verify_cluster_type( fd_replay_tile_t * ctx ) {
cluster = FD_CLUSTER_UNKNOWN;
}

if( cluster!=ctx->cluster_type ) {
FD_LOG_ERR(( "cluster type mismatch: (genesis) %s != (snapshot) %s", fd_genesis_cluster_name( cluster ), fd_genesis_cluster_name( ctx->cluster_type ) ));
if( FD_UNLIKELY( cluster!=ctx->cluster_type ) ) {
FD_LOG_ERR(( "Your genesis.bin file at `%s` has a genesis hash of `%s` which means the cluster is %s "
"but the snapshot you loaded is for a different cluster %s. If you are trying to join the "
"%s cluster, you can delete the genesis.bin file and restart the node to download the correct "
"genesis file automatically.",
ctx->genesis_path,
hash_cstr,
fd_genesis_cluster_name( cluster ),
fd_genesis_cluster_name( ctx->cluster_type ),
fd_genesis_cluster_name( cluster ) ));
}
}

Expand Down Expand Up @@ -2331,6 +2340,7 @@ unprivileged_init( fd_topo_t * topo,

ctx->expected_shred_version = tile->replay.expected_shred_version;
ctx->ipecho_shred_version = 0;
fd_memcpy( ctx->genesis_path, tile->replay.genesis_path, sizeof(ctx->genesis_path) );
ctx->has_genesis_hash = 0;
ctx->cluster_type = FD_CLUSTER_UNKNOWN;
ctx->hard_forks_cnt = ULONG_MAX;
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