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Merged
merged 18 commits into from
Nov 6, 2025
Merged

router: extend router interface to support metrics (v3) #11108

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c76f9ad
router: add router context structure and move routing state
edsiper Nov 4, 2025
d4ad577
router: implement router context creation and lifecycle
edsiper Nov 4, 2025
e9d4ae3
routes_mask: migrate API to use router context instead of config
edsiper Nov 4, 2025
4094f8d
config: integrate router context creation and destruction
edsiper Nov 4, 2025
a56488e
engine: publish routing metrics on log batch flush and drop
edsiper Nov 4, 2025
953d22b
input_chunk: update routing mask operations to use router context
edsiper Nov 4, 2025
046e0dc
input_log: update routing mask operations to use router context
edsiper Nov 4, 2025
8b50dd3
metrics_exporter: merge router metrics into /metrics output
edsiper Nov 4, 2025
a1d1bbb
in_storage_backlog: update routing mask operations to use router context
edsiper Nov 4, 2025
7eba8fc
task: update routing mask checks to use router context
edsiper Nov 4, 2025
aad9038
tests: internal: routing: update routing tests to use router context
edsiper Nov 4, 2025
e934e60
input_chunk: small cleanup
edsiper Nov 4, 2025
9e176f4
router: remove unnecessary function
edsiper Nov 4, 2025
a31157e
tests: internal: input_chunk_routes: fix compiler warnings
edsiper Nov 4, 2025
781aedf
tests: internal: fuzzers: aws_credentials_fuzzer: fix incorrect lengt…
edsiper Nov 4, 2025
5c65379
config: release kernel context on router creation error
edsiper Nov 5, 2025
f15ede8
bin: destroy cf opts on failure
edsiper Nov 6, 2025
3ee2305
config: release http resources on exit
edsiper Nov 6, 2025
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6 changes: 3 additions & 3 deletions include/fluent-bit/flb_config.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,8 @@

#include <monkey/mk_core.h>

struct flb_router;

#define FLB_CONFIG_FLUSH_SECS 1
#define FLB_CONFIG_HTTP_LISTEN "0.0.0.0"
#define FLB_CONFIG_HTTP_PORT "2020"
Expand Down Expand Up @@ -293,9 +295,7 @@ struct flb_config {
int hot_reload_watchdog_timeout_seconds;

/* Routing */
size_t route_mask_size;
size_t route_mask_slots;
uint64_t *route_empty_mask;
struct flb_router *router;
#ifdef FLB_SYSTEM_WINDOWS
/* maxstdio (Windows) */
int win_maxstdio;
Expand Down
22 changes: 22 additions & 0 deletions include/fluent-bit/flb_router.h
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,8 @@
#include <fluent-bit/flb_config.h>
#include <fluent-bit/flb_conditionals.h>
#include <cfl/cfl.h>
#include <cmetrics/cmetrics.h>
#include <cmetrics/cmt_counter.h>
#include <monkey/mk_core.h>

struct flb_mp_chunk_cobj;
Expand All @@ -47,6 +49,22 @@ struct flb_router_path {
struct cfl_list _head;
};

struct flb_router {
/* Routing masks */
size_t route_mask_size;
size_t route_mask_slots;
uint64_t *route_empty_mask;

/* metrics context */
struct cmt *cmt;

/* logs routing metrics */
struct cmt_counter *logs_records_total;
struct cmt_counter *logs_bytes_total;
struct cmt_counter *logs_drop_records_total;
struct cmt_counter *logs_drop_bytes_total;
};

static inline int flb_router_match_type(int in_event_type,
struct flb_output_instance *o_ins)
{
Expand Down Expand Up @@ -183,5 +201,9 @@ int flb_router_config_parse(struct flb_cf *cf,
void flb_router_routes_destroy(struct cfl_list *input_routes);
int flb_router_apply_config(struct flb_config *config);

int flb_router_metrics_create(struct flb_config *config, struct flb_router *router);
struct flb_router *flb_router_create(struct flb_config *config);
void flb_router_destroy(struct flb_router *router);

#endif

25 changes: 14 additions & 11 deletions include/fluent-bit/flb_routes_mask.h
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Original file line number Diff line number Diff line change
Expand Up @@ -46,23 +46,26 @@ typedef uint64_t flb_route_mask_element;
/* forward declaration */
struct flb_input_instance;
struct flb_config;
struct flb_router;

int flb_routes_mask_set_by_tag(flb_route_mask_element *routes_mask,
const char *tag,
int tag_len,
struct flb_input_instance *in);
int flb_routes_mask_get_bit(flb_route_mask_element *routes_mask, int value,
struct flb_config *config);
void flb_routes_mask_set_bit(flb_route_mask_element *routes_mask, int value,
struct flb_config *config);
void flb_routes_mask_clear_bit(flb_route_mask_element *routes_mask, int value,
struct flb_config *config);
int flb_routes_mask_is_empty(flb_route_mask_element *routes_mask,
struct flb_config *config);
int flb_routes_mask_get_bit(flb_route_mask_element *routes_mask, int value,
struct flb_router *router);
void flb_routes_mask_set_bit(flb_route_mask_element *routes_mask, int value,
struct flb_router *router);
void flb_routes_mask_clear_bit(flb_route_mask_element *routes_mask, int value,
struct flb_router *router);
int flb_routes_mask_is_empty(flb_route_mask_element *routes_mask,
struct flb_router *router);

int flb_routes_empty_mask_create(struct flb_config *config);
void flb_routes_empty_mask_destroy(struct flb_config *config);
int flb_routes_empty_mask_create(struct flb_router *router);
void flb_routes_empty_mask_destroy(struct flb_router *router);

int flb_routes_mask_set_size(size_t mask_size, struct flb_config *config);
int flb_routes_mask_set_size(size_t mask_size, struct flb_router *router);
size_t flb_routes_mask_get_size(struct flb_router *router);
size_t flb_routes_mask_get_slots(struct flb_router *router);

#endif
10 changes: 7 additions & 3 deletions plugins/in_storage_backlog/sb.c
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Original file line number Diff line number Diff line change
Expand Up @@ -281,12 +281,14 @@ static int sb_append_chunk_to_segregated_backlogs(struct cio_chunk *target_chun
int tag_len;
const char * tag_buf;
int result;
size_t slots;

memset(&dummy_input_chunk, 0, sizeof(struct flb_input_chunk));

slots = flb_routes_mask_get_slots(context->ins->config->router);
memset(context->dummy_routes_mask,
0,
context->ins->config->route_mask_slots * sizeof(flb_route_mask_element));
slots * sizeof(flb_route_mask_element));

Comment on lines +284 to 292
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@coderabbitai coderabbitai bot Nov 4, 2025 •
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⚠️ Potential issue | 🟠 Major

Over-allocation: using slots (bits) instead of size (elements) for mask operations.

flb_routes_mask_get_slots() returns bit-count; you’re allocating/clearing 64× more than needed. Use flb_routes_mask_get_size() for element count.

Apply this fix:

-    size_t                  slots;
+    size_t                  mask_size;
@@
-    slots = flb_routes_mask_get_slots(context->ins->config->router);
-    memset(context->dummy_routes_mask,
-           0,
-           slots * sizeof(flb_route_mask_element));
+    mask_size = flb_routes_mask_get_size(context->ins->config->router);
+    memset(context->dummy_routes_mask, 0,
+           mask_size * sizeof(flb_route_mask_element));
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
size_t slots;
memset(&dummy_input_chunk, 0, sizeof(struct flb_input_chunk));
slots = flb_routes_mask_get_slots(context->ins->config->router);
memset(context->dummy_routes_mask,
0,
context->ins->config->route_mask_slots * sizeof(flb_route_mask_element));
slots * sizeof(flb_route_mask_element));
size_t mask_size;
memset(&dummy_input_chunk, 0, sizeof(struct flb_input_chunk));
mask_size = flb_routes_mask_get_size(context->ins->config->router);
memset(context->dummy_routes_mask, 0,
mask_size * sizeof(flb_route_mask_element));
🤖 Prompt for AI Agents 
In plugins/in_storage_backlog/sb.c around lines 284 to 292, the code uses
flb_routes_mask_get_slots() (bit count) to compute the number of elements for
allocation/clearing, causing a 64x over-allocation; replace that call with
flb_routes_mask_get_size() to get the actual element count and use it when
computing the byte length for memset (elements * sizeof(flb_route_mask_element))
so the mask is cleared/allocated with the correct size.

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@cosmo0920 cosmo0920 Nov 5, 2025 •
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Yeah, it could be an optimized way. But I have a question. If we use this way to allocate heap memories, it'll need to reallocate to fix the size of heap memories for route masks? This is because it could be using a possibly bigger size of allocation here, but the re-allocate costs could be high or any other re-allocating places are implemented to extend/shrink the size of heap memories that are using for route masks?
If there's no code path to re-allocate/adjust places for them, it could be worthless suggestion.

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🧩 Analysis chain

🏁 Script executed:

#!/bin/bash

# First, let's examine the implementation of flb_routes_mask_get_slots() and flb_routes_mask_get_size()
echo "=== Implementation of flb_routes_mask_get_size() and flb_routes_mask_get_slots() ==="
ast-grep --pattern 'flb_routes_mask_get_size($$$) {
  $$$
}'

ast-grep --pattern 'flb_routes_mask_get_slots($$$) {
  $$$
}'

Length of output: 84

🏁 Script executed:

#!/bin/bash

# Let's look at the source file for these functions
echo "=== Contents of src/flb_routes_mask.c for these functions ==="
rg -A 10 "^size_t flb_routes_mask_get_(size|slots)" src/flb_routes_mask.c

Length of output: 444

🏁 Script executed:

#!/bin/bash

# Let's see how dummy_routes_mask is allocated in cb_sb_init
echo "=== Allocation of dummy_routes_mask in cb_sb_init ==="
rg -B 2 -A 5 "ctx->dummy_routes_mask = flb_calloc" plugins/in_storage_backlog/sb.c

Length of output: 316

🏁 Script executed:

#!/bin/bash

# Let's check other places in the codebase where routes_mask is allocated or sized
echo "=== Other allocations using flb_routes_mask_get_size ==="
rg -n "flb_routes_mask_get_size.*config->router" --type c -C 2

echo ""
echo "=== Other allocations using flb_routes_mask_get_slots ==="
rg -n "flb_routes_mask_get_slots.*config->router" --type c -C 2

Length of output: 2028

🏁 Script executed:

#!/bin/bash

# Let's examine the struct definition to understand what route_mask_slots and route_mask_size mean
echo "=== Router struct definition ==="
rg -A 15 "^struct flb_router" include/fluent-bit/flb_router.h

Length of output: 856

@cosmo0920, great question! Let me clarify - there's no reallocation happening here, and this is actually a bug fix, not just an optimization.

The Issue

The semantic difference between the two functions:

  • route_mask_slots = number of bits (i.e., max number of outputs/routes)
  • route_mask_size = number of elements (uint64_t) = ceil(slots / 64)

Since each flb_route_mask_element (uint64_t) holds 64 bits, if you have 3 outputs, you need:

  • route_mask_slots = 3 (bits)
  • route_mask_size = 1 (element, since 3 bits fit in one uint64_t)

Current Bug

The storage_backlog code currently:

  • Allocates slots elements (3 elements = 192 bytes) when it only needs size elements (1 element = 8 bytes)
  • Clears slots elements in the loop when it only needs to clear size elements

This is a ~64× over-allocation and over-clearing, not a design choice.

No Reallocation Occurs

The lifecycle is simple:

  1. Allocate once in cb_sb_init (line 671)
  2. Clear and reuse in sb_append_chunk_to_segregated_backlogs (line 289) — called in a loop
  3. Free once in cb_sb_exit

The mask size is determined at router initialization and never changes. There's no code path that reallocates or adjusts this buffer.

Consistency with Rest of Codebase

Every other allocation/clear operation in the refactored code uses get_size():

  • src/flb_input_chunk.c line 964 & 2024: allocations use get_size()
  • src/flb_input_log.c line 182: memset uses get_size()
  • src/flb_routes_mask.c line 67: memset uses get_size()

The storage_backlog plugin is the only place still using get_slots() incorrectly.

Recommendation

Apply the fix to match the rest of the codebase. It will:

  • ✅ Fix the over-allocation bug
  • ✅ Reduce repeated memset overhead in the loop
  • ✅ Make the code consistent with the router refactoring pattern
  • ✅ No reallocation costs (because there's no reallocation)
🧬 Code Graph Analysis Results

[src/flb_routes_mask.c] lines 36-43

size_t flb_routes_mask_get_slots(struct flb_router *router)
{
    if (router == NULL) {
        return 0;
    }

    return router->route_mask_slots;
}

[src/flb_routes_mask.c] lines 49-88

int flb_routes_mask_set_by_tag(flb_route_mask_element *routes_mask,
                               const char *tag,
                               int tag_len,
                               struct flb_input_instance *in)
{
    int has_routes = 0;
    size_t size;
    struct mk_list *o_head;
    struct flb_output_instance *o_ins;
    if (!in) {
        return 0;
    }

    if (in->config == NULL || in->config->router == NULL) {
        return 0;
    }

    /* Clear the bit field */
    size = flb_routes_mask_get_size(in->config->router);
    memset(routes_mask, 0, sizeof(flb_route_mask_element) * size);

    /* Find all matching routes for the given tag */
    mk_list_foreach(o_head, &in->config->outputs) {
        o_ins = mk_list_entry(o_head,
                              struct flb_output_instance, _head);

        if (flb_router_match(tag, tag_len, o_ins->match
#ifdef FLB_HAVE_REGEX
                             , o_ins->match_regex
#else
                             , NULL
#endif
                             )) {
            flb_routes_mask_set_bit(routes_mask, o_ins->id, o_ins->config->router);
            has_routes = 1;
        }
    }

    return has_routes;
}

[src/flb_routes_mask.c] lines 154-173

int flb_routes_mask_get_bit(flb_route_mask_element *routes_mask, int value,
                            struct flb_router *router)
{
    int index;
    uint64_t bit;

    if (router == NULL) {
        return 0;
    }

    if (value < 0 || value >= router->route_mask_slots) {
        flb_warn("[routes_mask] Can't get bit (%d) past limits of bitfield",
                 value);
        return 0;
    }

    index = value / FLB_ROUTES_MASK_ELEMENT_BITS;
    bit = 1ULL << (value % FLB_ROUTES_MASK_ELEMENT_BITS);
    return (routes_mask[index] & bit) != 0ULL;
}

[src/include/fluent-bit/flb_mem.h] lines 84-96

void *flb_calloc(size_t n, const size_t size) {
    if (size == 0) {
        return NULL;
    }
#ifdef FLB_HAVE_TESTS_OSSFUZZ
   // Add chance of failure. Used by fuzzing to test error-handling code.
   if (flb_fuzz_get_probability(1)) {
     return NULL;
   }
#endif

    return calloc(n, size);
}

[src/include/fluent-bit/flb_mem.h] lines 126-128

static inline void flb_free(void *ptr) {
    free(ptr);
}

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@cosmo0920 cosmo0920 Nov 5, 2025

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@edsiper This @coderabbitai's point of view could be correct for this patch. So, could you take a look on it?

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@cosmo0920, thank you for the review! I appreciate you confirming the analysis.

@edsiper, the issue is that both the allocation (line 671) and memset (line 289) in the storage_backlog plugin are using flb_routes_mask_get_slots() where they should use flb_routes_mask_get_size(). This causes a 64× over-allocation since slots counts bits while size counts uint64_t elements.

The fix is straightforward and makes the code consistent with the rest of the router refactoring. Happy to clarify anything if needed!

dummy_input_chunk.in = context->ins;
dummy_input_chunk.chunk = target_chunk;
Expand Down Expand Up @@ -317,7 +319,7 @@ static int sb_append_chunk_to_segregated_backlogs(struct cio_chunk *target_chun
backlog = mk_list_entry(head, struct sb_out_queue, _head);
if (flb_routes_mask_get_bit(dummy_input_chunk.routes_mask,
backlog->ins->id,
backlog->ins->config)) {
backlog->ins->config->router)) {
result = sb_append_chunk_to_segregated_backlog(target_chunk, stream,
chunk_size, backlog);
if (result) {
Expand Down Expand Up @@ -656,6 +658,7 @@ static int cb_sb_init(struct flb_input_instance *in,
int ret;
char mem[32];
struct flb_sb *ctx;
size_t slots;

ctx = flb_calloc(1, sizeof(struct flb_sb));

Expand All @@ -664,7 +667,8 @@ static int cb_sb_init(struct flb_input_instance *in,
return -1;
}

ctx->dummy_routes_mask = flb_calloc(in->config->route_mask_slots,
slots = flb_routes_mask_get_slots(config->router);
ctx->dummy_routes_mask = flb_calloc(slots,
sizeof(flb_route_mask_element));

if (ctx->dummy_routes_mask == NULL) {
Expand Down
34 changes: 32 additions & 2 deletions src/flb_config.c
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -304,7 +304,36 @@ struct flb_config *flb_config_init()
}

/* Routing */
flb_routes_mask_set_size(1, config);
config->router = flb_router_create(config);
if (!config->router) {
flb_error("[config] could not create router");
if (config->kernel) {
flb_kernel_destroy(config->kernel);
}
#ifdef FLB_HAVE_HTTP_SERVER
if (config->http_listen) {
flb_free(config->http_listen);
}

if (config->http_port) {
flb_free(config->http_port);
}
#endif
flb_cf_destroy(cf);
flb_free(config);
return NULL;
}
ret = flb_routes_mask_set_size(1, config->router);
if (ret != 0) {
flb_error("[config] routing mask dimensioning failed");
flb_router_destroy(config->router);
if (config->kernel) {
flb_kernel_destroy(config->kernel);
}
flb_cf_destroy(cf);
flb_free(config);
return NULL;
}

config->cio = NULL;
config->storage_path = NULL;
Expand Down Expand Up @@ -613,7 +642,8 @@ void flb_config_exit(struct flb_config *config)

/* release task map */
flb_config_task_map_resize(config, 0);
flb_routes_empty_mask_destroy(config);

flb_router_destroy(config->router);

/* Clean up router input routes */
flb_router_routes_destroy(&config->input_routes);
Expand Down
89 changes: 64 additions & 25 deletions src/flb_engine.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@
#include <fluent-bit/flb_utils.h>
#include <fluent-bit/flb_config.h>
#include <fluent-bit/flb_engine.h>
#include <fluent-bit/flb_event.h>
#include <fluent-bit/flb_engine_dispatch.h>
#include <fluent-bit/flb_network.h>
#include <fluent-bit/flb_task.h>
Expand Down Expand Up @@ -243,7 +244,8 @@ static inline int handle_output_event(uint64_t ts,
uint32_t type;
uint32_t key;
double latency_seconds;
char *name;
char *in_name;
char *out_name;
struct flb_task *task;
struct flb_task_retry *retry;
struct flb_output_instance *ins;
Expand Down Expand Up @@ -289,7 +291,8 @@ static inline int handle_output_event(uint64_t ts,
if (flb_output_is_threaded(ins) == FLB_FALSE) {
flb_output_flush_finished(config, out_id);
}
name = (char *) flb_output_name(ins);
in_name = (char *) flb_input_name(task->i_ins);
out_name = (char *) flb_output_name(ins);

/* If we are in synchronous mode, flush the next waiting task */
if (ins->flags & FLB_OUTPUT_SYNCHRONOUS) {
Expand All @@ -302,16 +305,26 @@ static inline int handle_output_event(uint64_t ts,
if (ret == FLB_OK) {
/* cmetrics */
cmt_counter_add(ins->cmt_proc_records, ts, task->event_chunk->total_events,
1, (char *[]) {name});
1, (char *[]) {out_name});

cmt_counter_add(ins->cmt_proc_bytes, ts, task->event_chunk->size,
1, (char *[]) {name});
1, (char *[]) {out_name});

if (config->router && task->event_chunk->type == FLB_EVENT_TYPE_LOGS) {
cmt_counter_add(config->router->logs_records_total, ts,
task->event_chunk->total_events,
2, (char *[]) {in_name, out_name});

cmt_counter_add(config->router->logs_bytes_total, ts,
task->event_chunk->size,
2, (char *[]) {in_name, out_name});
}

/* latency histogram */
if (ins->cmt_latency) {
latency_seconds = flb_time_now() - ((struct flb_input_chunk *) task->ic)->create_time;
cmt_histogram_observe(ins->cmt_latency, ts, latency_seconds, 2,
(char *[]) {(char *) flb_input_name(task->i_ins), name});
(char *[]) {in_name, out_name});
}

/* [OLD API] Update metrics */
Expand Down Expand Up @@ -346,7 +359,7 @@ static inline int handle_output_event(uint64_t ts,

cmt_gauge_set(ins->cmt_chunk_available_capacity_percent, ts,
calculate_chunk_capacity_percent(ins),
1, (char *[]) {name});
1, (char *[]) {out_name});

flb_task_retry_clean(task, ins);
flb_task_users_dec(task, FLB_TRUE);
Expand All @@ -355,11 +368,22 @@ static inline int handle_output_event(uint64_t ts,
if (ins->retry_limit == FLB_OUT_RETRY_NONE) {
/* cmetrics: output_dropped_records_total */
cmt_counter_add(ins->cmt_dropped_records, ts, task->records,
1, (char *[]) {name});
1, (char *[]) {out_name});

if (config->router && task->event_chunk &&
task->event_chunk->type == FLB_EVENT_TYPE_LOGS) {
cmt_counter_add(config->router->logs_drop_records_total, ts,
task->records,
2, (char *[]) {in_name, out_name});

cmt_counter_add(config->router->logs_drop_bytes_total, ts,
task->event_chunk->size,
2, (char *[]) {in_name, out_name});
}

cmt_gauge_set(ins->cmt_chunk_available_capacity_percent, ts,
calculate_chunk_capacity_percent(ins),
1, (char *[]) {name});
1, (char *[]) {out_name});

/* OLD metrics API */
#ifdef FLB_HAVE_METRICS
Expand Down Expand Up @@ -389,13 +413,24 @@ static inline int handle_output_event(uint64_t ts,
*/

/* cmetrics */
cmt_counter_inc(ins->cmt_retries_failed, ts, 1, (char *[]) {name});
cmt_counter_inc(ins->cmt_retries_failed, ts, 1, (char *[]) {out_name});
cmt_counter_add(ins->cmt_dropped_records, ts, task->records,
1, (char *[]) {name});
1, (char *[]) {out_name});

if (config->router && task->event_chunk &&
task->event_chunk->type == FLB_EVENT_TYPE_LOGS) {
cmt_counter_add(config->router->logs_drop_records_total, ts,
task->records,
2, (char *[]) {in_name, out_name});

cmt_counter_add(config->router->logs_drop_bytes_total, ts,
task->event_chunk->size,
2, (char *[]) {in_name, out_name});
}

cmt_gauge_set(ins->cmt_chunk_available_capacity_percent, ts,
calculate_chunk_capacity_percent(ins),
1, (char *[]) {name});
1, (char *[]) {out_name});

/* OLD metrics API */
#ifdef FLB_HAVE_METRICS
Expand Down Expand Up @@ -449,13 +484,13 @@ static inline int handle_output_event(uint64_t ts,
flb_output_name(ins), out_id);

/* cmetrics */
cmt_counter_inc(ins->cmt_retries, ts, 1, (char *[]) {name});
cmt_counter_inc(ins->cmt_retries, ts, 1, (char *[]) {out_name});
cmt_counter_add(ins->cmt_retried_records, ts, task->records,
1, (char *[]) {name});
1, (char *[]) {out_name});

cmt_gauge_set(ins->cmt_chunk_available_capacity_percent, ts,
calculate_chunk_capacity_percent(ins),
1, (char *[]) {name});
1, (char *[]) {out_name});

/* OLD metrics API: update the metrics since a new retry is coming */
#ifdef FLB_HAVE_METRICS
Expand All @@ -466,13 +501,24 @@ static inline int handle_output_event(uint64_t ts,
}
else if (ret == FLB_ERROR) {
/* cmetrics */
cmt_counter_inc(ins->cmt_errors, ts, 1, (char *[]) {name});
cmt_counter_inc(ins->cmt_errors, ts, 1, (char *[]) {out_name});
cmt_counter_add(ins->cmt_dropped_records, ts, task->records,
1, (char *[]) {name});
1, (char *[]) {out_name});

if (config->router && task->event_chunk &&
task->event_chunk->type == FLB_EVENT_TYPE_LOGS) {
cmt_counter_add(config->router->logs_drop_records_total, ts,
task->records,
2, (char *[]) {in_name, out_name});

cmt_counter_add(config->router->logs_drop_bytes_total, ts,
task->event_chunk->size,
2, (char *[]) {in_name, out_name});
}

cmt_gauge_set(ins->cmt_chunk_available_capacity_percent, ts,
calculate_chunk_capacity_percent(ins),
1, (char *[]) {name});
1, (char *[]) {out_name});

/* OLD API */
#ifdef FLB_HAVE_METRICS
Expand Down Expand Up @@ -811,14 +857,7 @@ int flb_engine_start(struct flb_config *config)
config->notification_channels_initialized = FLB_TRUE;
config->notification_event.type = FLB_ENGINE_EV_NOTIFICATION;

ret = flb_routes_mask_set_size(mk_list_size(&config->outputs), config);

if (ret != 0) {
flb_error("[engine] routing mask dimensioning failed");
return -1;
}

ret = flb_routes_mask_set_size(mk_list_size(&config->outputs), config);
ret = flb_routes_mask_set_size(mk_list_size(&config->outputs), config->router);

if (ret != 0) {
flb_error("[engine] routing mask dimensioning failed");
Expand Down
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