[
https://issues.apache.org/jira/browse/GEODE-8035?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17098124#comment-17098124
]
ASF GitHub Bot commented on GEODE-8035:
---------------------------------------
jchen21 commented on a change in pull request #5014:
URL: https://github.com/apache/geode/pull/5014#discussion_r419018112
##########
File path:
geode-core/src/main/java/org/apache/geode/internal/cache/DiskStoreFactoryImpl.java
##########
@@ -141,10 +141,9 @@ DiskStoreImpl createOwnedByRegion(String name, boolean
isOwnedByPR,
@Override
public DiskStore create(String name) {
this.attrs.name = name;
- // As a simple fix for 41290, only allow one DiskStore to be created
- // at a time per cache by syncing on the cache.
DiskStore result;
- synchronized (this.cache) {
+ try {
Review comment:
Before I created this pull request, I actually looked into 41290, which
was created more than 10 years ago. It was a totally different implementation.
41290 is no longer a concern.
We do need to remove the synchronization, in order to make the disk store
recovery parallel. This synchronized block not only adds disk stores into the
map, but also reads the disks, please see `initializeDiskStore(dsi);` in line
157. `initializeDiskStore()` eventually invokes `Oplog.recoverCrf()` and
`Oplog.readKrf()`. Without removing the synchronization, the disk store can
only be recovered one at a time.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
> Parallel Disk Store Recovery when Cluster Restarts
> --------------------------------------------------
>
> Key: GEODE-8035
> URL: https://issues.apache.org/jira/browse/GEODE-8035
> Project: Geode
> Issue Type: Improvement
> Reporter: Jianxia Chen
> Assignee: Jianxia Chen
> Priority: Major
> Labels: GeodeCommons
>
> Currently, when Geode cluster restarts, the disk store recovery is
> serialized. When all regions share the same disk store, the restart process
> is time consuming. To improve the performance, different regions can use
> different disk stores with different disk controllers. And adding parallel
> disk store recovery. This is expected to significantly reduce the time to
> restart Geode cluster.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
