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author | Grzegorz Bizon <grzegorz@gitlab.com> | 2018-07-10 12:21:11 +0300 |
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committer | Grzegorz Bizon <grzegorz@gitlab.com> | 2018-07-10 12:21:11 +0300 |
commit | c7b8afcd9093bbb56a405a15290ce8f1625988b1 (patch) | |
tree | b96d614c2db051642dae1152812d390ef5c57dd6 /lib/gitlab/ci/trace | |
parent | f5f5a4e6775e4b8dd4cfeea45e026918f7b2a4d3 (diff) | |
parent | 737666a3d121b1bf89861de4445f857256a47949 (diff) |
Merge branch 'improve-metadata-access-performance' into 'master'
Improve metadata access performance
See merge request gitlab-org/gitlab-ce!20493
Diffstat (limited to 'lib/gitlab/ci/trace')
-rw-r--r-- | lib/gitlab/ci/trace/http_io.rb | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/lib/gitlab/ci/trace/http_io.rb b/lib/gitlab/ci/trace/http_io.rb deleted file mode 100644 index 8788af57a67..00000000000 --- a/lib/gitlab/ci/trace/http_io.rb +++ /dev/null @@ -1,197 +0,0 @@ -## -# This class is compatible with IO class (https://ruby-doc.org/core-2.3.1/IO.html) -# source: https://gitlab.com/snippets/1685610 -module Gitlab - module Ci - class Trace - class HttpIO - BUFFER_SIZE = 128.kilobytes - - InvalidURLError = Class.new(StandardError) - FailedToGetChunkError = Class.new(StandardError) - - attr_reader :uri, :size - attr_reader :tell - attr_reader :chunk, :chunk_range - - alias_method :pos, :tell - - def initialize(url, size) - raise InvalidURLError unless ::Gitlab::UrlSanitizer.valid?(url) - - @uri = URI(url) - @size = size - @tell = 0 - end - - def close - # no-op - end - - def binmode - # no-op - end - - def binmode? - true - end - - def path - nil - end - - def url - @uri.to_s - end - - def seek(pos, where = IO::SEEK_SET) - new_pos = - case where - when IO::SEEK_END - size + pos - when IO::SEEK_SET - pos - when IO::SEEK_CUR - tell + pos - else - -1 - end - - raise 'new position is outside of file' if new_pos < 0 || new_pos > size - - @tell = new_pos - end - - def eof? - tell == size - end - - def each_line - until eof? - line = readline - break if line.nil? - - yield(line) - end - end - - def read(length = nil, outbuf = "") - out = "" - - length ||= size - tell - - until length <= 0 || eof? - data = get_chunk - break if data.empty? - - chunk_bytes = [BUFFER_SIZE - chunk_offset, length].min - chunk_data = data.byteslice(0, chunk_bytes) - - out << chunk_data - @tell += chunk_data.bytesize - length -= chunk_data.bytesize - end - - # If outbuf is passed, we put the output into the buffer. This supports IO.copy_stream functionality - if outbuf - outbuf.slice!(0, outbuf.bytesize) - outbuf << out - end - - out - end - - def readline - out = "" - - until eof? - data = get_chunk - new_line = data.index("\n") - - if !new_line.nil? - out << data[0..new_line] - @tell += new_line + 1 - break - else - out << data - @tell += data.bytesize - end - end - - out - end - - def write(data) - raise NotImplementedError - end - - def truncate(offset) - raise NotImplementedError - end - - def flush - raise NotImplementedError - end - - def present? - true - end - - private - - ## - # The below methods are not implemented in IO class - # - def in_range? - @chunk_range&.include?(tell) - end - - def get_chunk - unless in_range? - response = Net::HTTP.start(uri.hostname, uri.port, proxy_from_env: true, use_ssl: uri.scheme == 'https') do |http| - http.request(request) - end - - raise FailedToGetChunkError unless response.code == '200' || response.code == '206' - - @chunk = response.body.force_encoding(Encoding::BINARY) - @chunk_range = response.content_range - - ## - # Note: If provider does not return content_range, then we set it as we requested - # Provider: minio - # - When the file size is larger than requested Content-range, the Content-range is included in responces with Net::HTTPPartialContent 206 - # - When the file size is smaller than requested Content-range, the Content-range is included in responces with Net::HTTPPartialContent 206 - # Provider: AWS - # - When the file size is larger than requested Content-range, the Content-range is included in responces with Net::HTTPPartialContent 206 - # - When the file size is smaller than requested Content-range, the Content-range is included in responces with Net::HTTPPartialContent 206 - # Provider: GCS - # - When the file size is larger than requested Content-range, the Content-range is included in responces with Net::HTTPPartialContent 206 - # - When the file size is smaller than requested Content-range, the Content-range is included in responces with Net::HTTPOK 200 - @chunk_range ||= (chunk_start...(chunk_start + @chunk.bytesize)) - end - - @chunk[chunk_offset..BUFFER_SIZE] - end - - def request - Net::HTTP::Get.new(uri).tap do |request| - request.set_range(chunk_start, BUFFER_SIZE) - end - end - - def chunk_offset - tell % BUFFER_SIZE - end - - def chunk_start - (tell / BUFFER_SIZE) * BUFFER_SIZE - end - - def chunk_end - [chunk_start + BUFFER_SIZE, size].min - end - end - end - end -end |