memfaultd 1.15.0

Added

• Add a new per-process operational_crashes metric. This is similar to the
  system wide operational_crashes metric, but is broken down by service. The
  metric will be named operational_crashes_<process name>, where <process name> is the name of the executable binary for the crashed process.
• Add a builtin log level extractor for all logs that are ingested by
  memfaultd. This allows you to define regex for each log level so that the
  level reported to Memfault matches the level inside the log message. This is
  useful for logs from systemd for example that do not always have a matching
  level in the metadata and the message.
• We've added a host of new builtin metrics:
  • cpu_usage_<process>_pct - Percent CPU usage of a specific process.
  • memory_<process>_pct - Percent memory usage of a specific process.
  • storage_used_<disk>_pct - Percent disk usage of a specific disk.
  • connectivity_<sent/recv>_bytes - Bytes sent and received over a network
    interface.
  • connectivity_<interface>_<sent/recv>_bytes - Bytes sent and received over
    a specific network interface.

Changed

• The builtin system metric configuration is now enabled by default. This means
  that memfaultd will now collect metrics on CPU, memory, disk usage, and much
  more out of the box. Note that this means
  some metrics previously reported via
  collectd will now have different keys.
  We hope this will make it more clear what each
  metric actually represents on a device -
  if this causes issues with your Project configuration
  please don't hesitate to reach out to us for
  support!
• memfaultd's internal statsd server is now enabled by default. This allows
  you to send custom metrics to memfaultd using the StatsD protocol. without
  having the first route them through collectd.
• We've made some changes to increase performance in our log processing
  pipeline. This should result in a lower CPU usage when processing logs.
• Previously a small number of log messages written by memfaultd did not have a level. We've
  updated them to now have a level matching the severity of each message.
• The journald log source is now the default log collector. This will use our
  internal processor for grabbing logs directly from the systemd journal. If you
  are not using systemd, you can still use the fluent-bit log source.

Fixed

• Fixed a bug where leading and trailing whitespace was being added to attribute
  names when using memfaultctl write-attributes.
• Previously memfaultd would panic if a MAR attachment was not an absolute
  path or was not a file. This has been changed to simply log an error and
  continue.
• Fixed a bug in which some metrics captured before enabling data
  collection were uploadedto Memfault once data collection was enabled.
  No data captured on devices for which data collection was always disabled
  would be uploaded as a result of this bug.