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6312080b69
* Handle file descriptors running out * Added alarm for dbengine FS and I/O errors * more verbose alarm message * * Added File-Descriptor budget to Database Engine instances. * Changed FD budget of the web server from 50% to 25%. * Allocated 25% of FDs to dbengine. * Created a new dbengine global FD utilization chart.
43 lines
No EOL
2.1 KiB
C
43 lines
No EOL
2.1 KiB
C
// SPDX-License-Identifier: GPL-3.0-or-later
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#ifndef NETDATA_RRDENGINEAPI_H
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#define NETDATA_RRDENGINEAPI_H
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#include "rrdengine.h"
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#define RRDENG_MIN_PAGE_CACHE_SIZE_MB (32)
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#define RRDENG_MIN_DISK_SPACE_MB (256)
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#define RRDENG_NR_STATS (33)
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#define RRDENG_FD_BUDGET_PER_INSTANCE (50)
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extern int default_rrdeng_page_cache_mb;
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extern int default_rrdeng_disk_quota_mb;
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extern void *rrdeng_create_page(struct rrdengine_instance *ctx, uuid_t *id, struct rrdeng_page_descr **ret_descr);
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extern void rrdeng_commit_page(struct rrdengine_instance *ctx, struct rrdeng_page_descr *descr,
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Word_t page_correlation_id);
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extern void *rrdeng_get_latest_page(struct rrdengine_instance *ctx, uuid_t *id, void **handle);
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extern void *rrdeng_get_page(struct rrdengine_instance *ctx, uuid_t *id, usec_t point_in_time, void **handle);
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extern void rrdeng_put_page(struct rrdengine_instance *ctx, void *handle);
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extern void rrdeng_store_metric_init(RRDDIM *rd);
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extern void rrdeng_store_metric_flush_current_page(RRDDIM *rd);
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extern void rrdeng_store_metric_next(RRDDIM *rd, usec_t point_in_time, storage_number number);
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extern void rrdeng_store_metric_finalize(RRDDIM *rd);
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extern void rrdeng_load_metric_init(RRDDIM *rd, struct rrddim_query_handle *rrdimm_handle,
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time_t start_time, time_t end_time);
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extern storage_number rrdeng_load_metric_next(struct rrddim_query_handle *rrdimm_handle);
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extern int rrdeng_load_metric_is_finished(struct rrddim_query_handle *rrdimm_handle);
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extern void rrdeng_load_metric_finalize(struct rrddim_query_handle *rrdimm_handle);
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extern time_t rrdeng_metric_latest_time(RRDDIM *rd);
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extern time_t rrdeng_metric_oldest_time(RRDDIM *rd);
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extern void rrdeng_get_33_statistics(struct rrdengine_instance *ctx, unsigned long long *array);
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/* must call once before using anything */
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extern int rrdeng_init(struct rrdengine_instance **ctxp, char *dbfiles_path, unsigned page_cache_mb,
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unsigned disk_space_mb);
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extern int rrdeng_exit(struct rrdengine_instance *ctx);
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#endif /* NETDATA_RRDENGINEAPI_H */ |