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buffer: warning message for restoring buffer with flush_at_shutdown #4027

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merged 2 commits into from
Jan 27, 2023
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Merged

buffer: warning message for restoring buffer with flush_at_shutdown #4027

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63e1418
buffer: warning message for restoring buffer with flush_at_shutdown
daipom Jan 26, 2023
0807567
add comment for the intention of warning
daipom Jan 27, 2023
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8 changes: 7 additions & 1 deletion lib/fluent/plugin/buf_file.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -145,7 +145,13 @@ def resume
Dir.glob(escaped_patterns(patterns)) do |path|
next unless File.file?(path)

log.debug { "restoring buffer file: path = #{path}" }
if owner.respond_to?(:buffer_config) && owner.buffer_config&.flush_at_shutdown
# When `flush_at_shutdown` is `true`, the remaining chunk files during resuming are possibly broken
# since there may be a power failure or similar failure.
log.warn { "restoring buffer file: path = #{path}" }
else
log.debug { "restoring buffer file: path = #{path}" }
end

m = new_metadata() # this metadata will be overwritten by resuming .meta file content
# so it should not added into @metadata_list for now
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8 changes: 7 additions & 1 deletion lib/fluent/plugin/buf_file_single.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -166,7 +166,13 @@ def resume
Dir.glob(escaped_patterns(patterns)) do |path|
next unless File.file?(path)

log.debug { "restoring buffer file: path = #{path}" }
if owner.respond_to?(:buffer_config) && owner.buffer_config&.flush_at_shutdown
# When `flush_at_shutdown` is `true`, the remaining chunk files during resuming are possibly broken
# since there may be a power failure or similar failure.
log.warn { "restoring buffer file: path = #{path}" }
else
log.debug { "restoring buffer file: path = #{path}" }
end

m = new_metadata() # this metadata will be updated in FileSingleChunk.new
mode = Fluent::Plugin::Buffer::FileSingleChunk.assume_chunk_state(path)
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