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Netdata

Netdata May 26, 2020 g33kadmin

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Real-time performance monitoring, done right! https://www.netdata.cloud

The fastest path to AI-powered full stack observability, even for lean teams.
https://github.com/netdata/netdata
6,326 forks.
77,622 stars.
253 open issues.

Recent commits:

[ci skip] Update changelog and version for nightly build: v2.8.0-338-nightly., netdatabot
Add object size and bounds validation when reading journal files. (#21697)1. Validate object size is at least sizeof(ObjectHeader)2. Check that objects are not located in the file header area3. Verify object offset + size doesn't overflow4. Ensure objects don't exceed the journal's arena boundsOn the writer side we update `arena_size` immediately after writingeach object (rather than at entry completion, similar to systemd). Thisensures subsequent reads within the same write operation can find newlywritten objects., GitHub
Adjust curl options when submitting events (#21696)Discard curl response / disable signal-based timeouts, GitHub
Handle transient systemd state flag changes. (#21695)When systemd-journal temporarily sets a journal file's header state tosomething other than STATE_ONLINE (e.g., during flush/sync operations),the file indexer would incorrectly mark the file as offline/archived.This caused the cache entry to be considered "always fresh" and neverre-indexed, resulting in the file being excluded from queries when itsbounded time range didn't overlap with the current query time.The fix checks both the journal header state AND the file's status fromits filename. If the filename indicates an active file (no @ suffix),it's treated as online regardless of the transient header state.The otel-plugin implementation always uses "archived" filenames anddoes not suffer from this issue., GitHub
Keep window manager state consistent on `mmap` failures. (#21693)* Fix window-manager state consistency after failed mmapInvalidate `active_window_idx` before/after window removal to ensurethe index doesn't point to a non-existent window if `create_window`fails.Also adds error logging when mmap creation fails, and two separatetests to ensure the window manager's consistency in such cases.* Improve error handling at journal file access call-sites- Stop `EntryDataIterator` on data read errors instead of continuing- Add warning log when find_log_entries fails for a file- Properly propagate errors from `get_timestamp_field`, ignoring only `MissingFieldName` variant., GitHub

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