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out_es: support write_operation option #4079

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merged 8 commits into from
Jan 7, 2022
Merged

out_es: support write_operation option #4079

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8b5bb2c
out_es: support write_operation option
Sep 10, 2021
4e58586
Merge branch 'master' of github.com:fluent/fluent-bit
Dec 15, 2021
9b7d58e
out_es: move elasticsearch bulk action config to `flb_elasticsearch`
Dec 16, 2021
8eb0198
out_es: use snprintf instead of printf
Dec 16, 2021
8a8dbc0
out_es: use `create` action by default
Dec 16, 2021
4da0fc9
out_es: ctx->es_action should be freed on exit since flb_strdup alloc…
Dec 19, 2021
a22a99d
Merge remote-tracking branch 'upstream/master'
Dec 19, 2021
3e2ddca
out_es: fix broken conf condition
Dec 19, 2021
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36 changes: 35 additions & 1 deletion plugins/out_es/es.c
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Original file line number Diff line number Diff line change
Expand Up @@ -260,6 +260,8 @@ static int elasticsearch_format(struct flb_config *config,
char index_formatted[256];
char es_uuid[37];
flb_sds_t out_buf;
size_t out_buf_len = 0;
flb_sds_t tmp_buf;
flb_sds_t id_key_str = NULL;
msgpack_unpacked result;
msgpack_object root;
Expand Down Expand Up @@ -311,6 +313,10 @@ static int elasticsearch_format(struct flb_config *config,
msgpack_unpacked_destroy(&result);
msgpack_unpacked_init(&result);

flb_sds_t write_op = strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_UPSERT) == 0
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? FLB_ES_WRITE_OP_UPDATE
: ctx->write_operation;

/* Copy logstash prefix if logstash format is enabled */
if (ctx->logstash_format == FLB_TRUE) {
memcpy(logstash_index, ctx->logstash_prefix, flb_sds_len(ctx->logstash_prefix));
Expand All @@ -334,12 +340,14 @@ static int elasticsearch_format(struct flb_config *config,
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT_WITHOUT_TYPE,
write_op,
es_index);
}
else {
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT,
write_op,
es_index, ctx->type);
}
}
Expand Down Expand Up @@ -446,12 +454,14 @@ static int elasticsearch_format(struct flb_config *config,
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT_WITHOUT_TYPE,
write_op,
es_index);
}
else {
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT,
write_op,
es_index, ctx->type);
}
}
Expand Down Expand Up @@ -496,12 +506,14 @@ static int elasticsearch_format(struct flb_config *config,
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT_ID_WITHOUT_TYPE,
write_op,
es_index, es_uuid);
}
else {
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT_ID,
write_op,
es_index, ctx->type, es_uuid);
}
}
Expand All @@ -512,12 +524,14 @@ static int elasticsearch_format(struct flb_config *config,
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT_ID_WITHOUT_TYPE,
write_op,
es_index, id_key_str);
}
else {
index_len = snprintf(j_index,
ES_BULK_HEADER,
ES_BULK_INDEX_FMT_ID,
write_op,
es_index, ctx->type, id_key_str);
}
flb_sds_destroy(id_key_str);
Expand All @@ -534,10 +548,25 @@ static int elasticsearch_format(struct flb_config *config,
return -1;
}

out_buf_len = flb_sds_len(out_buf);
if (strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_UPDATE) == 0) {
tmp_buf = out_buf;
out_buf = flb_sds_create_len(NULL, out_buf_len + sizeof(ES_BULK_UPDATE_OP_BODY) - 2);
out_buf_len = sprintf(out_buf, ES_BULK_UPDATE_OP_BODY, tmp_buf);
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flb_sds_destroy(tmp_buf);
}
else if (strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_UPSERT) == 0) {
tmp_buf = out_buf;
out_buf = flb_sds_create_len(NULL, out_buf_len + sizeof(ES_BULK_UPSERT_OP_BODY) - 2);
out_buf_len = sprintf(out_buf, ES_BULK_UPSERT_OP_BODY, tmp_buf);
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flb_sds_destroy(tmp_buf);
}

ret = es_bulk_append(bulk, j_index, index_len,
out_buf, flb_sds_len(out_buf),
out_buf, out_buf_len,
bytes, off_prev);
flb_sds_destroy(out_buf);

off_prev = off;
if (ret == -1) {
/* We likely ran out of memory, abort here */
Expand Down Expand Up @@ -1052,6 +1081,11 @@ static struct flb_config_map config_map[] = {
"When enabled, generate _id for outgoing records. This prevents duplicate "
"records when retrying ES"
},
{
FLB_CONFIG_MAP_STR, "write_operation", "index",
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0, FLB_TRUE, offsetof(struct flb_elasticsearch, write_operation),
"Operation to use to write in bulk requests"
},
{
FLB_CONFIG_MAP_STR, "id_key", NULL,
0, FLB_TRUE, offsetof(struct flb_elasticsearch, id_key),
Expand Down
10 changes: 9 additions & 1 deletion plugins/out_es/es.h
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Original file line number Diff line number Diff line change
Expand Up @@ -31,6 +31,11 @@
#define FLB_ES_DEFAULT_TIME_KEYF "%Y-%m-%dT%H:%M:%S"
#define FLB_ES_DEFAULT_TAG_KEY "flb-key"
#define FLB_ES_DEFAULT_HTTP_MAX "512k"
#define FLB_ES_WRITE_OP_INDEX "index"
#define FLB_ES_WRITE_OP_CREATE "create"
#define FLB_ES_WRITE_OP_UPDATE "update"
#define FLB_ES_WRITE_OP_UPSERT "upsert"
#define FLB_ES_DEFAULT_WRITE_OP FLB_ES_WRITE_OP_INDEX
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struct flb_elasticsearch {
/* Elasticsearch index (database) and type (table) */
Expand Down Expand Up @@ -101,10 +106,13 @@ struct flb_elasticsearch {
int time_key_nanos;


/* write operation */
flb_sds_t write_operation;

/* id_key */
flb_sds_t id_key;
struct flb_record_accessor *ra_id_key;

/* include_tag_key */
int include_tag_key;
flb_sds_t tag_key;
Expand Down
10 changes: 6 additions & 4 deletions plugins/out_es/es_bulk.h
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Original file line number Diff line number Diff line change
Expand Up @@ -25,10 +25,12 @@

#define ES_BULK_CHUNK 4096 /* Size of buffer chunks */
#define ES_BULK_HEADER 165 /* ES Bulk API prefix line */
#define ES_BULK_INDEX_FMT "{\"create\":{\"_index\":\"%s\",\"_type\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT_ID "{\"create\":{\"_index\":\"%s\",\"_type\":\"%s\",\"_id\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT_WITHOUT_TYPE "{\"create\":{\"_index\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT_ID_WITHOUT_TYPE "{\"create\":{\"_index\":\"%s\",\"_id\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT "{\"%s\":{\"_index\":\"%s\",\"_type\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT_ID "{\"%s\":{\"_index\":\"%s\",\"_type\":\"%s\",\"_id\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT_WITHOUT_TYPE "{\"%s\":{\"_index\":\"%s\"}}\n"
#define ES_BULK_INDEX_FMT_ID_WITHOUT_TYPE "{\"%s\":{\"_index\":\"%s\",\"_id\":\"%s\"}}\n"
#define ES_BULK_UPDATE_OP_BODY "{\"doc\":%s}"
#define ES_BULK_UPSERT_OP_BODY "{\"doc_as_upsert\":true,\"doc\":%s}"

struct es_bulk {
char *ptr;
Expand Down
21 changes: 21 additions & 0 deletions plugins/out_es/es_conf.c
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Expand Up @@ -232,6 +232,27 @@ struct flb_elasticsearch *flb_es_conf_create(struct flb_output_instance *ins,
snprintf(ctx->uri, sizeof(ctx->uri) - 1, "%s/_bulk", path);
}

if (ctx->write_operation) {
if (strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_INDEX) == 0) {
memcpy(ctx->write_operation, FLB_ES_WRITE_OP_INDEX,
sizeof(FLB_ES_WRITE_OP_INDEX));
}
else if (strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_CREATE) == 0) {
memcpy(ctx->write_operation, FLB_ES_WRITE_OP_CREATE,
sizeof(FLB_ES_WRITE_OP_CREATE));
}
else if (strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_UPDATE) == 0) {
memcpy(ctx->write_operation, FLB_ES_WRITE_OP_UPDATE,
sizeof(FLB_ES_WRITE_OP_UPDATE));
}
else if (strcasecmp(ctx->write_operation, FLB_ES_WRITE_OP_UPSERT) == 0) {
memcpy(ctx->write_operation, FLB_ES_WRITE_OP_UPSERT,
sizeof(FLB_ES_WRITE_OP_UPSERT));
}
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else {
flb_plg_error(ins, "wrong Write_Operation (should be one of index, create, update, upsert)");
}
}

if (ctx->id_key) {
ctx->ra_id_key = flb_ra_create(ctx->id_key, FLB_FALSE);
Expand Down
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