- [X] Link to issue, e.g. `Resolves #NNN`
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that you license the work to the project under the [Apache 2
license](https://github.com/nats-io/nats-server/blob/main/LICENSE)
Resolves#4459
Allows the user to set the deduplication window duration to 0s when the
stream has sources defined. Remember that if the stream in question is
also listening on subjects as well as sourcing the deduplication window
is the same for sourced and listened messages.
---------
Signed-off-by: Jean-Noël Moyne <jnmoyne@gmail.com>
Historically we kept indexing information, either by sequence or by subject, as a per msg block operation. These were the "*.idx" and "*.fss" indexing files. When streams became very large this could have an impact on recovery time. Also, for encryption the fast path for determining if the indexing was current would require loading and decrypting the complete block.
This design moves to a more traditional WAL and snapshot approach. The snapshots for the complete stream, including sumary information, global per subject information maps (PSIM) and per msg block details including summary and dmap, are processed asynchronously. The snapshot includes the msh block and has for the last record considered in the snapshot. On recovery the snapshot is read and processed and any additional records past the point of the snapshot itself are processed. To this end, any removal of a message has to be expressed as a delete tombstone that is always added the the fs.lmb file. These are processed on recovery and our indexing layer knows to skip them.
Changing to this method drastically improves startup and recovery times, and has simplified the code. Some normal performance benefits have been seen as well.
Signed-off-by: Derek Collison <derek@nats.io>
2.10 adds a couple space separated fields to the sourcing message header from 2 to 4 but the current 2.9 code is too strict of checking the number of fields is exactly 2 rather than at least 2
Signed-off-by: Jean-Noël Moyne <jnmoyne@gmail.com>
Adds sfs to SourceInfo such that transforms with just a subject filter (and no transformation, meaning that the transform pointer in streamInfo is nil) can still be reflected in SourceInfo, which is important since the filtering is still happening, just no transformation as well.
Signed-off-by: Jean-Noël Moyne <jnmoyne@gmail.com>
Clean up un-needed if statement as it's ok to call NewSubjectTransform with an empty destination (ie no transformation) it will return nil
Signed-off-by: Jean-Noël Moyne <jnmoyne@gmail.com>
Three issues were found and resolved.
1. Purge replays after recovery could execute full purge.
2. Callback was registered without lock, which could lead to skew.
3. Cluster reset could stop stream store and recreate it, which could lead to double accounting.
Signed-off-by: Derek Collison <derek@nats.io>
- [X] Tests added
- [X] Branch rebased on top of current main (`git pull --rebase origin
main`)
- [X] Changes squashed to a single commit (described
[here](http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html))
- [X] Build is green in Travis CI
- [X] You have certified that the contribution is your original work and
that you license the work to the project under the [Apache 2
license](https://github.com/nats-io/nats-server/blob/main/LICENSE)
### Changes proposed in this pull request:
Adds support for multi-filter (and associated transform destinations) to
stream sources
---------
Signed-off-by: Jean-Noël Moyne <jnmoyne@gmail.com>
This adds a new `prev_key` field to the configuration file to allow
transitioning from one encryption key to another.
Signed-off-by: Neil Twigg <neil@nats.io>
- [X] Branch rebased on top of current main (`git pull --rebase origin
main`)
- [X] Changes squashed to a single commit (described
[here](http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html))
- [x] Build is green in Travis CI
- [X] You have certified that the contribution is your original work and
that you license the work to the project under the [Apache 2
license](https://github.com/nats-io/nats-server/blob/main/LICENSE)
Fixes a behavior where idempotency of re-defining the same stream more
than once (with the same attributes) was broken due to the DeepEqual
failing due to the StreamSource struct received from the client app not
having a value for the `iname` structure field (as it's internal) but
the StreamSource struct return from `mset.config()` would have it set.
Signed-off-by: Jean-Noël Moyne <jnmoyne@gmail.com>
This is due to the mirroring functionality trying to skip messages when it detects a gap. In a replicated stream this puts excessive stress on the raft system.
This step is not needed at all if the mirror stream has no messages, we can simply jump ahead.
Signed-off-by: Derek Collison <derek@nats.io>
- [ ] Link to issue, e.g. `Resolves #NNN`
- [ ] Documentation added (if applicable)
- [ ] Tests added
- [ ] Branch rebased on top of current main (`git pull --rebase origin
main`)
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- [x] Build is green in Travis CI
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Resolves panics in the code.
### Changes proposed in this pull request:
- This PR fixes some of the panics in the code
This records the server time when info for streams and
consumers are created so that tools such as the nats cli
can calculate time deltas for last ack, last delivered and
so forth in the context of the server clock.
This will help aleviate problems with client devices experiencing
clock jitter that can show up in user interfaces as negative
seconds since last ack etc
Signed-off-by: R.I.Pienaar <rip@devco.net>
This can happen when we reset a stream internally and the stream had a prior snapshot.
Also make sure to always release resources back to the account regardless if the store is no longer present.
Signed-off-by: Derek Collison <derek@nats.io>
