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22 Commits

Author SHA1 Message Date
Joshua Boniface 5540bdc86b Add automatic schema upgrade to nodes 
Performs an automatic schema upgrade when all nodes are updated to the
latest version.

Addresses #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface 3c102b3769 Add per-node schema tracking 
This will allow nodes to start with their own schema versions, and then
be updated simultaneously by the API.

References #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface 602dd7b714 Update version 0 schema and add full validation 
Addresses #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface 126f0742cd Add Zookeeper schema manager to zkhandler 
Adds a new class, ZKSchema, to handle schema management in Zookeeper in
an automated and consistent way. This should solve several issues:

1. Pain in managing changes to ZK keys
2. Pain in handling those changes during live upgrades
3. Simplifying the codebase to remove hardcoded ZK paths

The current master schema for PVC 0.9.19 is committed as version 0.

Addresses #129
 2021-06-08 23:35:39 -04:00
Joshua Boniface d3b5b5236a Remove transactional delete 
This just doesn't work due to the darn limit on recursive deletes in
transactions.
 2021-05-31 19:22:01 -04:00
Joshua Boniface 8625e9bd3e Update Delete to recursive method 2021-05-31 03:14:09 -04:00
Joshua Boniface ed4f84a3ec Add log handling and persistent listener 2021-05-31 03:14:09 -04:00
Joshua Boniface f82da03a62 Add first wrappers and exceptions 2021-05-28 00:19:39 -04:00
Joshua Boniface fef230ad98 Implement class-based version of zkhander 2021-05-27 22:50:00 -04:00
Joshua Boniface 0bf276fd51 Update copyright year in headers 2021-03-25 17:01:55 -04:00
Joshua Boniface f4ec161aa2 Update file copyright header. 
Remove the option to select a later version of the GPL.
 2021-03-25 16:58:02 -04:00
Joshua Boniface 260b39ebf2 Lint: E302 expected 2 blank lines, found X 2020-11-07 14:45:24 -05:00
Joshua Boniface 99d723dd8b Lint: F821 undefined name 'count' 2020-11-07 13:39:51 -05:00
Joshua Boniface 6cf7f178a6 Lint: F821 undefined name 'time' 2020-11-07 13:38:54 -05:00
Joshua Boniface 5da314902f Lint: F841 local variable '<variable>' is assigned to but never used 2020-11-06 21:13:13 -05:00
Joshua Boniface d9e7b7ec15 Lint: F401 <library> imported but unused 2020-11-06 19:22:49 -05:00
Joshua Boniface 42c5f84ba7 Do multiple lock attempts 2020-10-21 11:21:37 -04:00
Joshua Boniface 3839040092 Add exclusive lock function 2020-10-21 10:46:41 -04:00
Joshua Boniface 72f47f216a Revert "Add locking in common zkhander" 
This reverts commit 53c0d2b4f6.

This resulted in a massive performance hit and some inconsistent
behaviour. Revert for now an re-investigate later.
 2020-10-21 03:49:13 -04:00
Joshua Boniface 53c0d2b4f6 Add locking in common zkhander 
Ensures that every changed made here is locked, thus preventing
duplicate updates, etc.
 2020-10-21 03:17:18 -04:00
Joshua Boniface 44efd66f2c Fix error renaming keys 
This function was not implemented and thus failed; implements it.
 2020-03-30 21:38:18 -04:00
Joshua Boniface 4505b239eb Rename API and common Debian packages 
Closes #79
 2020-02-08 18:50:38 -05:00