ErrLookup › valyala/fasthttp
valyala/fasthttp
Fast HTTP package for Go. Tuned for high performance. Zero memory allocations in hot paths. Up to 10x faster than net/http · Go · 74 source files
Analyzed at c96f600972 on 2026-08-31. 175 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| prefork: close inherited listener fd | exception | warning | fasthttp, prefork, file-descriptor, unix |
| cannot read header of the file | exception | error | fasthttp, content-type, mime, file-reading |
| cannot make non-blocked listening socket | error_code | error | network, sockets, syscall, nonblocking |
| cannot obtain info for file | exception | error | filesystem, fasthttp, file-metadata, stat |
| fasthttp: need more data: cannot find trailing lf | exception | warning | http, fasthttp, streaming, parsing |
| bufio read returned ( , nil) | exception | error | fasthttp, io-reader-contract, body-read, bufio |
| unexpected convert socket fd int to uintptr | error_code | error | network, sockets, internal, fd |
| fasthttp: no args value for the given key | exception | warning | query-params, input-validation, fasthttp |
| unsupported transfer-encoding | validation | error | http, fasthttp, transfer-encoding, protocol |
| error when compressing file | exception | error | filesystem, fasthttp, compression, io-error |
| brotli: excessive input | exception | error | brotli, compression, data-corruption |
| couldn't find dns entries for the given domain: try using… | exception | error | network, dns, tcp, ipv6 |
| negative input is invalid | validation | error | float-parsing, input-validation, negative-value |
| cannot change modification time to | exception | warning | filesystem, fasthttp, compression, file-timestamps |
| prefork: listen tcp | exception | error | go, network, prefork, listen-error |
| cannot unread '\r' char at the end of chunk size | exception | error | fasthttp, chunked-encoding, bufio, concurrency |
| fasthttp: small read buffer. increase readbuffersize | exception | error | http, buffer-size, fasthttp, header-parsing |
| cannot create temporary file for | exception | error | filesystem, fasthttp, compression, temp-file, permissions |
| only tcp, tcp4, or tcp6 is supported | validation | error | network, tcp, listener, validation |
| cannot open form file | exception | error | multipart, form-data, request-writing |
| copied bytes from body stream instead of bytes | exception | error | content-length, body-stream, streaming |
| cannot read '\r' char at the end of chunk size | exception | error | fasthttp, chunked-encoding, http-protocol, truncated-body |
| fasthttp: cannot find whitespace in the first line of… | exception | error | network, http, fasthttp, response-parsing |
| prefork: resolve / | exception | error | fasthttp, prefork, tcp, address-resolution |
| too many transfer-encoding headers | exception | error | http, header-parsing, request-smuggling, security |
| cannot move compressed file from | exception | error | filesystem, fasthttp, compression, rename, cache |
| cannot gunzip request body | exception | error | http, fasthttp, gzip, content-encoding |
| cannot determine absolute path for | exception | error | filesystem, fasthttp, filepath, compression-cache |
| directory with unexpected suffix found | exception | error | filesystem, fasthttp, compression, static-files |
| fasthttp: pipelined requests' queue has been overflowed… | exception | error | fasthttp, pipelining, backpressure, network |
| fasthttp: unsupported http request method | exception | error | http, fasthttp, request-validation |
| non-zero body for non-post request: body= | exception | error | http-method, request-body, validation |
| cannot parse somaxconn | error_code | error | linux, sysctl, somaxconn, parsing, backlog |
| error when compressing file | exception | error | fasthttp, compression, memory, in-memory-cache |
| error when reading headers: : buffer size= , contents | exception | error | http, header-parsing, fasthttp |
| cannot parse ip string | validation | error | go, parsing, ipv4, input-validation |
| prefork: windows only supports reuseport = true | exception | error | prefork, windows, configuration |
| invalid scheme | validation | error | uri, parsing, scheme, validation |
| empty hex number | validation | error | chunked-encoding, http-protocol, malformed-input |
| too long int | validation | error | integer-parsing, overflow, input-validation |
| could not connect to proxy addr | exception | error | network, proxy, http-connect, fasthttp |
| fasthttp: hostclient can't follow redirects to a different… | exception | error | http, redirect, tls, client |
| invalid character after chunk size | exception | error | fasthttp, chunked-encoding, request-smuggling, http-protocol |
| fasthttp: cannot find http request method | exception | error | http, fasthttp, request-validation |
| error when reading request headers | exception | error | http, buffer-size, fasthttp |
| pipeline connection has been stopped | exception | error | fasthttp, pipelining, connection-closed, shutdown |
| cannot create listening unblocked socket | error_code | critical | network, sockets, syscall, fd-limit |
| unexpected convert net interface index int to uint32 | error_code | error | network, ipv6, zone-id, integer-overflow |
| prefork: dup listener fd | exception | error | go, prefork, file-descriptor |
| cannot obtain info for compressed file | exception | error | fasthttp, filesystem, stat, compression-cache, race-condition |
| cannot create listening socket | error_code | critical | network, sockets, zos, s390x, syscall |
| fasthttp: unexpected char at the end of status code | exception | error | network, http, fasthttp, response-parsing |
| fasthttp: duplicate content-length header | exception | error | http, fasthttp, header-parsing, security |
| panic while writing body stream: %+v | panic | error | panic, body-stream, streaming |
| cannot determine backlog to pass to listen(2) | error_code | error | network, linux, tcp, backlog |
| empty integer | validation | error | integer-parsing, empty-input, input-validation |
| cannot open compressed file | exception | error | fasthttp, filesystem, compression-cache, file-open |
| prefork: command producer | error_code | error | go, prefork, command-producer |
| cannot listen on | error_code | error | network, linux, tcp, listen-syscall |
| missing the end position of byte range in | validation | warning | http, range-header, validation, fasthttp |
| cannot disable nagle's algorithm | error_code | error | network, tcp, nagle, setsockopt |
| cannot access directory without index page: directory | exception | warning | config, file-server, directory-index, fasthttp |
| fasthttp: contain forbidden trailer | exception | error | go, fasthttp, http, headers, trailer |
| cannot mark listening socket close-on-exec | error_code | error | network, sockets, zos, s390x, fcntl, cloexec |
| cannot determine tls server name from addr | exception | error | go, tls, sni, fasthttp |
| fasthttp: unsupported transfer-encoding | exception | error | http, fasthttp, header-parsing, transfer-encoding |
| fasthttp: extra whitespace in request line | exception | error | http, fasthttp, request-parsing, security |
| unexpected trailing char found: expecting 0-9 | validation | error | integer-parsing, input-validation, trailing-characters |
| fasthttp: non-numeric chars found | exception | error | http, fasthttp, header-parsing, validation |
| unexpected first char found: expecting 0-9 | validation | error | integer-parsing, input-validation, whitespace |
| invalid port after host | validation | error | uri, parsing, port, ipv6, validation |
| cannot open already opened file | exception | error | filesystem, io, fasthttp, file-server |
| fasthttp: body size exceeds the given limit | exception | error | http, body-limit, payload-size |
| cannot enable tcp_defer_accept | error_code | error | linux, tcp, defer-accept, sockopt |
| too large hex number | validation | error | http, parsing, chunked-encoding, protocol-violation |
| cannot load tls key pair from the provided cert data | error_code | error | go, tls, embedded-certificates |
| cannot open file | exception | error | filesystem, permissions, file-server, fasthttp |
| non-zero body for non-post request | validation | error | http, request-body, request-reuse |
| prefork: commandproducer returned nil command | exception | error | prefork, commandproducer, exec |
| unexpected error when trying to remove unix socket file | error_code | error | go, unix-socket, filesystem-permissions |
| cannot compress data due to high load | exception | warning | compression, high-load, stackless |
| error when marshaling multipart form | exception | error | multipart, request-marshaling |
| prefork: start child | error_code | error | go, prefork, process-spawn |
| cannot enable so_reuseport | error_code | error | network, sockets, reuseport, setsockopt, kernel |
| fasthttp: error when reading response headers | exception | error | go, fasthttp, http, response-parsing |
| invalid headers, headers cannot start with space or tab | validation | error | http, malformed-headers, fasthttp, parser |
| cert or key has not provided | validation | error | tls, certificate, server |
| fasthttp: no available clients | exception | error | load-balancing, client-pool, configuration |
| prefork: commandproducer must return a started command | exception | error | prefork, commandproducer, exec |
| ip part cannot exceed 255 | validation | error | ip-parsing, input-validation, range-error |
| malformed mime header line | exception | error | http, fasthttp, mime-header, malformed |
| error when reading response headers | exception | error | network, fasthttp, headers, buffer-size |
| invalid ipv6 zone | validation | error | ipv6, uri, zone-id |
| cannot enable tcp_fastopen | error_code | error | linux, tcp, tcp-fastopen, sockopt, sysctl |
| cannot load tls key pair from cert file= | error_code | error | go, tls, certificates |
| cannot obtain info for original file | exception | error | filesystem, fasthttp, compression |
| fasthttputil: connection closed | exception | warning | fasthttputil, pipe, connection-closed, network |
| proxy: unknown scheme: | exception | error | fasthttp, proxy, configuration, network |
| value is negative, cannot convert to uintptr | validation | error | network, tcp, syscall, validation |
| cannot read char at the end of chunk size | exception | error | fasthttp, chunked-encoding, connection-reset, truncated-body |