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Passively calculate TCP RTT between hosts

License: MIT License

Go 100.00%

go-metro's Issues

Tag metrics by `interface`, `source_ip`, `destination_ip`

Instead of link, would make the tagging more flexible.

Avoid having gauges on the same src and dst but different ports overwrite one another

We can't tag by port for all the ports because that would create too many short-lived contexts.

A good solution would be to implement our own aggregators to compute the average/min/max over all the ports (i.e. like an agent histogram).

Also, we could allow configuring a list of ports on which go-metro would tag the metrics by port.

go get failing.

go version

go version go1.3.3 linux/amd64

This command cd $GOPATH
go get -a -v github.com/DataDog/go-metro

Throws this error

runtime
errors
sync/atomic
unicode
unicode/utf8
math
sync
sort
io
syscall
container/list
hash
crypto/subtle
crypto/cipher
bytes
strings
bufio
crypto/hmac
time
encoding
path
hash/crc32
strconv
math/rand
os
reflect
crypto
crypto/aes
crypto/md5
crypto/rc4
crypto/sha1
crypto/sha256
crypto/sha512
encoding/base64
regexp/syntax
encoding/pem
net
path/filepath
io/ioutil
os/signal
encoding/binary
fmt
regexp
crypto/des
flag
math/big
encoding/hex
encoding/xml
archive/tar
compress/flate
crypto/elliptic
github.com/DataDog/datadog-go/statsd
crypto/rand
crypto/ecdsa
crypto/dsa
crypto/rsa
encoding/asn1
archive/zip
compress/gzip
github.com/cihub/seelog/archive/gzip
github.com/cihub/seelog/archive/tar
net/textproto
runtime/debug
github.com/cihub/seelog/archive
github.com/cihub/seelog/archive/zip
crypto/x509/pkix
github.com/google/gopacket
golang.org/x/net/context
gopkg.in/yaml.v2
crypto/x509
gopkg.in/tomb.v2
github.com/google/gopacket/layers
crypto/tls
net/smtp
github.com/cihub/seelog
github.com/google/gopacket/pcap
# github.com/google/gopacket/pcap
src/github.com/google/gopacket/pcap/pcap.go:30: undefined: pcapErrorNotActivated
src/github.com/google/gopacket/pcap/pcap.go:52: undefined: pcapTPtr
src/github.com/google/gopacket/pcap/pcap.go:64: undefined: pcapPkthdr

#cat /etc/os-release
NAME="SLES"
VERSION="12-SP4"
VERSION_ID="12.4"
PRETTY_NAME="SUSE Linux Enterprise Server 12 SP4"
ID="sles"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles:12:sp4"

Please let me know if you need more info.
What am I doing wrong?

Improve example docs

In particular, better document how the 2 whitelists work, and that they're optional.

Have a human-readable date format in logs

Instead of a timestamp, to be able to correlate go-metro's logs with the agent's logs.

Slight typo and one missing -devel

At https://github.com/DataDog/go-metro#usage the instructions miss the capitalization of Data"D"og.

It says:

go install github.com/Datadog/go-metro

When it should say:

go install github.com/DataDog/go-metro

Finally, I also had to install "libpcap-devel" on a CentOS7 system in addition to the other packages. The error, for posterity was as follows:

$ go install github.com/DataDog/go-metro                                                   
# github.com/google/gopacket/pcap
src/github.com/google/gopacket/pcap/pcap_unix.go:34:18: fatal error: pcap.h: No such file or directory
 #include <pcap.h>
                  ^
compilation terminated.

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