Commit Graph

11 Commits

Author SHA1 Message Date
Egon Elbre
28ea63be92 satellite/repair: avoid TestDBAccess
Change-Id: I34adb58cd67fba5917032f2f328d75b1c4afdbbf
2020-11-30 13:29:08 +02:00
JT Olio
0ba516d405 satellite: support pointing db components at different databases
the immediate need is to be able to move the repair queue back out
of cockroach if we can't save it.

Change-Id: If26001a4e6804f6bb8713b4aee7e4fd6254dc326
2020-11-28 18:39:16 +00:00
Moby von Briesen
0ec685b173 satellite/{satellitedb, repair/{queue, checker}}: Use new column "segmentHealth" instead of "numHealthy" in injured segments queue
We plan to add support for a new Reed-Solomon scheme soon, but our
repair queue orders segments by least number of healthy pieces first.
With a second RS scheme, fewer healthy pieces will not necessarily
correlate to lower health.

This change just adds the new column in a migration. A separate change
will add the new health function.

Right now, since we only support one RS scheme, behavior will not
change. Number of healthy pieces is being inserted as "segment health"
until the new health function is merged.

Segment health is calculated with a new priority function created in
commit 3e5640359. In order to use the function, a new config value is
added, called NodeFailureRate, representing the approximate probability
of any individual node going down in the duration of one checker run.

Change-Id: I51c4202203faf52528d923befbe886dbf86d02f2
2020-11-16 21:18:09 +00:00
Egon Elbre
004e610d0f satellite/internalpb: move datarepair.pb to internal
Change-Id: If901d9ff4e5ee6715b963eeeb46513a602a44b3d
2020-10-30 13:28:14 +02:00
Cameron Ayer
c2525ba2b5 satellite/{repair,satellitedb}: clean up healthy segments from repair queue at end of checker iteration
Repair workers prioritize the most unhealthy segments. This has the consequence that when we
finally begin to reach the end of the queue, a good portion of the remaining segments are
healthy again as their nodes have come back online. This makes it appear that there are more
injured segments than there actually are.

solution:
Any time the checker observes an injured segment it inserts it into the repair queue or
updates it if it already exists. Therefore, we can determine which segments are no longer
injured if they were not inserted or updated by the last checker iteration. To do this we
add a new column to the injured segments table, updated_at, which is set to the current time
when a segment is inserted or updated. At the end of the checker iteration, we can delete any
items where updated_at < checker start.

Change-Id: I76a98487a4a845fab2fbc677638a732a95057a94
2020-09-29 20:38:22 +00:00
Moby von Briesen
290c006a10 satellite/repair/{checker,queue}: add metric for new segments added to repair queue
* add monkit stat new_remote_segments_needing_repair, which reports the
number of new unhealthy segments in the repair queue since the previous
checker iteration

Change-Id: I2f10266006fdd6406ece50f4759b91382059dcc3
2020-05-27 06:23:47 +00:00
Moby von Briesen
4e5a7f13c7 satellite/repair/queue: Prioritize selection of items off repair queue by segment health
Add a column to the repair queue table in the satellite db for healthy
piece count. When an item is selected from the repair queue, the least
durable segment that has not been attempted in the past hour should be
selected first. This prevents our repairer from getting stuck doing work
on segments that are close to the repair threshold while allowing
segments that are more unhealthy to degrade further.

The migration also clears the repair queue so that the migration runs
quickly and we can properly account for segment health in future repair
work.

We do not select items off the repair queue that have been attempted in
the past six hours. This was changed from on hour to allow us time to
try a wider variety of segments when the repair queue is very large.

Change-Id: Iaf183f1e5fd45cd792a52e3563a3e43a2b9f410b
2020-02-26 09:54:16 -05:00
Egon Elbre
6615ecc9b6 common: separate repository
Change-Id: Ibb89c42060450e3839481a7e495bbe3ad940610a
2019-12-27 14:11:15 +02:00
Egon Elbre
a801fab66a
all: add archview annotations (#2964) 2019-09-10 16:24:16 +03:00
Alexander Leitner
159ad439b1
Add count to repair queue (#2661)
* Add count to repair queue
2019-07-30 11:21:40 -04:00
Egon Elbre
5d0816430f
rename all the things (#2531)
* rename pkg/linksharing to linksharing
* rename pkg/httpserver to linksharing/httpserver
* rename pkg/eestream to uplink/eestream
* rename pkg/stream to uplink/stream
* rename pkg/metainfo/kvmetainfo to uplink/metainfo/kvmetainfo
* rename pkg/auth/signing to pkg/signing
* rename pkg/storage to uplink/storage
* rename pkg/accounting to satellite/accounting
* rename pkg/audit to satellite/audit
* rename pkg/certdb to satellite/certdb
* rename pkg/discovery to satellite/discovery
* rename pkg/overlay to satellite/overlay
* rename pkg/datarepair to satellite/repair
2019-07-28 08:55:36 +03:00