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|
use std::sync::Arc;
use tokio::sync::Semaphore;
use opentelemetry::{global, metrics::*};
use garage_db as db;
use garage_db::counted_tree_hack::CountedTree;
/// TableMetrics reference all counter used for metrics
pub struct BlockManagerMetrics {
pub(crate) _compression_level: ValueObserver<u64>,
pub(crate) _rc_size: ValueObserver<u64>,
pub(crate) _resync_queue_len: ValueObserver<u64>,
pub(crate) _resync_errored_blocks: ValueObserver<u64>,
pub(crate) _buffer_free_kb: ValueObserver<u64>,
pub(crate) resync_counter: BoundCounter<u64>,
pub(crate) resync_error_counter: BoundCounter<u64>,
pub(crate) resync_duration: BoundValueRecorder<f64>,
pub(crate) resync_send_counter: Counter<u64>,
pub(crate) resync_recv_counter: BoundCounter<u64>,
pub(crate) bytes_read: BoundCounter<u64>,
pub(crate) block_read_duration: BoundValueRecorder<f64>,
pub(crate) bytes_written: BoundCounter<u64>,
pub(crate) block_write_duration: BoundValueRecorder<f64>,
pub(crate) delete_counter: BoundCounter<u64>,
pub(crate) corruption_counter: BoundCounter<u64>,
}
impl BlockManagerMetrics {
pub fn new(
compression_level: Option<i32>,
rc_tree: db::Tree,
resync_queue: CountedTree,
resync_errors: CountedTree,
buffer_semaphore: Arc<Semaphore>,
) -> Self {
let meter = global::meter("garage_model/block");
Self {
_compression_level: meter
.u64_value_observer("block.compression_level", move |observer| {
match compression_level {
Some(v) => observer.observe(v as u64, &[]),
None => observer.observe(0_u64, &[]),
}
})
.with_description("Garage compression level for node")
.init(),
_rc_size: meter
.u64_value_observer("block.rc_size", move |observer| {
if let Ok(Some(v)) = rc_tree.fast_len() {
observer.observe(v as u64, &[])
}
})
.with_description("Number of blocks known to the reference counter")
.init(),
_resync_queue_len: meter
.u64_value_observer("block.resync_queue_length", move |observer| {
observer.observe(resync_queue.len() as u64, &[])
})
.with_description(
"Number of block hashes queued for local check and possible resync",
)
.init(),
_resync_errored_blocks: meter
.u64_value_observer("block.resync_errored_blocks", move |observer| {
observer.observe(resync_errors.len() as u64, &[])
})
.with_description("Number of block hashes whose last resync resulted in an error")
.init(),
_buffer_free_kb: meter
.u64_value_observer("block.ram_buffer_free_kb", move |observer| {
observer.observe(buffer_semaphore.available_permits() as u64, &[])
})
.with_description(
"Available RAM in KiB to use for buffering data blocks to be written to remote nodes",
)
.init(),
resync_counter: meter
.u64_counter("block.resync_counter")
.with_description("Number of calls to resync_block")
.init()
.bind(&[]),
resync_error_counter: meter
.u64_counter("block.resync_error_counter")
.with_description("Number of calls to resync_block that returned an error")
.init()
.bind(&[]),
resync_duration: meter
.f64_value_recorder("block.resync_duration")
.with_description("Duration of resync_block operations")
.init()
.bind(&[]),
resync_send_counter: meter
.u64_counter("block.resync_send_counter")
.with_description("Number of blocks sent to another node in resync operations")
.init(),
resync_recv_counter: meter
.u64_counter("block.resync_recv_counter")
.with_description("Number of blocks received from other nodes in resync operations")
.init()
.bind(&[]),
bytes_read: meter
.u64_counter("block.bytes_read")
.with_description("Number of bytes read from disk")
.init()
.bind(&[]),
block_read_duration: meter
.f64_value_recorder("block.read_duration")
.with_description("Duration of block read operations")
.init()
.bind(&[]),
bytes_written: meter
.u64_counter("block.bytes_written")
.with_description("Number of bytes written to disk")
.init()
.bind(&[]),
block_write_duration: meter
.f64_value_recorder("block.write_duration")
.with_description("Duration of block write operations")
.init()
.bind(&[]),
delete_counter: meter
.u64_counter("block.delete_counter")
.with_description("Number of blocks deleted")
.init()
.bind(&[]),
corruption_counter: meter
.u64_counter("block.corruption_counter")
.with_description("Data corruptions detected on block reads")
.init()
.bind(&[]),
}
}
}
|
