https://github.com/miekg/dns/pull/815 goes into the detail, but more or
less the existing solution was no longer supported and needed to be
rewritten to support the new versions of the library. miekg additionally
claims this is more correct in the ticket.
Signed-off-by: Erik Hollensbe <github@hollensbe.org>
Make WAL live tailer return EOF when the there is a half-written record at the end of the file.
Previously, this would cause an infinite loop as we ignored EOFs when filling the buffer. We now differentiate between EOFs that read >0 bytes, and EOFs that didn't.
Add some more unit tests for tailing a corrupt WAL, and unify interfaces Reader and LiveReader for the purposes of testing.
Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>
fixes https://github.com/prometheus/prometheus/issues/5213
Now that we have time and size base retention time bases should not have a default value. A default is set only when both - time and size flags are not set.
This change will not affect current installations that rely on the default time based value, and will avoid confusions when only the size retention is set and it is expected that the default time based setting would be no longer in place.
Signed-off-by: Krasi Georgiev <kgeorgie@redhat.com>
Test to corrupt segments mid-WAL, repair and check we can read the correct number of records.
Make segmentBufReader pad short segments with zeros, and only advance curr segment index after fully reading segment.
* storage/remote: adapt tests for Travis CI
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Check filesystems on Travis environment
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Run remote/storage tests on CircleCI for troubleshooting
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Try using tmpfs partition
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Revert "Try using tmpfs partition"
This reverts commit 85a30deb72.
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Don't store labels in writeToMock
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Fix data race
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Bump retries to 100 meaning that the total timeout is 10s
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* clean up .travis.yml
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* code fixup
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Remove unneeded empty line
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* scrape: catch errors when creating HTTP clients
This change makes sure that no scrape pool is created with a nil HTTP
client.
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Address Tariq's comment
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
* Address Brian's comment
Signed-off-by: Simon Pasquier <spasquie@redhat.com>
- Use the queue name in WAL watcher logging.
- Don't return from watch if the reader error was EOF.
- Fix sample timestamp check logic regarding what samples we send.
- Refactor so we don't need readToEnd/readSeriesRecords
- Fix wal_watcher tests since readToEnd no longer exists
Signed-off-by: Callum Styan <callumstyan@gmail.com>
- Remove datarace in the exported highest scrape timestamp.
- Backoff on enqueue should be per-sample - reset the result for each sample.
- Remove diffKeys, unused ctx and cancelfunc in WALWatcher, 'name' from writeTo interface, and pass it to constructor.
- Reorder functions in WALWatcher depth-first according to call graph.
- Fix vendor/modules.txt.
- Split out the various timer periods into consts at the top of the file.
- Move w.currentSegmentMetric.Set close to where we set the currentSegment.
- Combine r.Next() and isClosed(w.quit) into a single loop.
- Unnest some ifs in WALWatcher.watch, propagate erros in decodeRecord, add some new lines to make it easier to read.
- Reorganise checkpoint handling to reduce nesting and make it easier to follow.
Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>
This change switches the remote_write API to use the TSDB WAL. This should reduce memory usage and prevent sample loss when the remote end point is down.
We use the new LiveReader from TSDB to tail WAL segments. Logic for finding the tracking segment is included in this PR. The WAL is tailed once for each remote_write endpoint specified. Reading from the segment is based on a ticker rather than relying on fsnotify write events, which were found to be complicated and unreliable in early prototypes.
Enqueuing a sample for sending via remote_write can now block, to provide back pressure. Queues are still required to acheive parallelism and batching. We have updated the queue config based on new defaults for queue capacity and pending samples values - much smaller values are now possible. The remote_write resharding code has been updated to prevent deadlocks, and extra tests have been added for these cases.
As part of this change, we attempt to guarantee that samples are not lost; however this initial version doesn't guarantee this across Prometheus restarts or non-retryable errors from the remote end (eg 400s).
This changes also includes the following optimisations:
- only marshal the proto request once, not once per retry
- maintain a single copy of the labels for given series to reduce GC pressure
Other minor tweaks:
- only reshard if we've also successfully sent recently
- add pending samples, latest sent timestamp, WAL events processed metrics
Co-authored-by: Chris Marchbanks <csmarchbanks.com> (initial prototype)
Co-authored-by: Tom Wilkie <tom.wilkie@gmail.com> (sharding changes)
Signed-off-by: Callum Styan <callumstyan@gmail.com>
1. Added an ability to resize text area on mouseclick
2. Remember selected target status button on page reload
Signed-off-by: Maria Nemtinova <nemtinovamasha@gmail.com>
* web: updated bootstrap3-typeahead file to work with bootstrap 4.0.0
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: Replaced bootstrap-3.3.1 with bootstrap 4.0.0
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: Added bootstrap4-glyphicons as 4.0.0 doesnt include bootstrap3 glyphicons
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated js jquery to 3.3.1
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated _base.html to import new bootstrap 4.0.0, jquery3.3.1 and bootstrap class tags to be 4.0 compatible
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: _base.html missed word out in title tag (Server).
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated alerts.html class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated config.html class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated flags.html class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated service-discovery.html class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated status.html class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated targets.html class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: updated graph_template.handlebar class names and tags to be bootstrap 4 compatible.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: alerts.css fix for button color inheritance on alerts page.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: graph.css fix for color inheritance.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: prometheus.css updated to fix nav bar.
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* web: previous merge conflict not fixed correctly on _base.html
Signed-off-by: Andrew Chiu <andrew.chiu2@baesystems.com>
* menu.lib and prom.lib imports updated
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* bootstrap 4.1.3 imported
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Bootstrap 4.1.3 imported into _base.html
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* bootstrap 4.1.3 imported into prom.lib
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* menu.lib style adjusted to view sidebar
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Alert colour uplifted to bootstrap 4.1.3
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Alerts display code reformatted similarly to config
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Consoles pages adjusted to account for new navbar
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* LHS Menu fixed in console pages
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Minor changes to prom_console to adjust lhs nav
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Prom.lib and some css updated to fix console graph controls
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Bootstrap 4.0.0 files removed
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Consoles configured so that the graph fits with the new side bar, css files also adjusted
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Import popper.min.js for dropdowns
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Popper.min.js imported locally
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Re-added #4764 and fixed css
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Removed .DS_Store
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Rebuilt assets
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* Spaces between buttons and inputs on graph page removed
Signed-off-by: ksherryBAE <kieran.sherry@baesystems.com>
* fixed spacing in buttons on /targets
Signed-off-by: Pritam Bhudia <pritam.bhudia@baesystems.com>
* Updated vfsdata.go
Signed-off-by: Pritam Bhudia <pritam.bhudia@baesystems.com>
* fixed typeahead issue
Signed-off-by: James Ritchie <james.g.ritchie@baesystems.com>
* added css for dropdown
Signed-off-by: James Ritchie <james.g.ritchie@baesystems.com>
* changed order of css imports
Signed-off-by: James Ritchie <james.g.ritchie@baesystems.com>
* tinkered with CSS changes to make keyboard select and mouseover match
Signed-off-by: James Ritchie <james.g.ritchie@baesystems.com>
