Liron Ar has posted comments on this change.

Change subject: core: long query response time while many simultaneously 
queries are running
......................................................................


Patch Set 13:

(6 comments)

http://gerrit.ovirt.org/#/c/27586/13/backend/manager/modules/dal/src/main/java/org/ovirt/engine/core/dao/DiskImageDynamicDAO.java
File 
backend/manager/modules/dal/src/main/java/org/ovirt/engine/core/dao/DiskImageDynamicDAO.java:

Line 6: import org.ovirt.engine.core.compat.Guid;
Line 7: 
Line 8: public interface DiskImageDynamicDAO extends 
GenericDao<DiskImageDynamic, Guid>, MassOperationsDao<DiskImageDynamic, Guid> {
Line 9: 
Line 10:     void updateAllWithoutImageId(Collection<DiskImageDynamic> 
_vmDiskImageDynamicToSave);
/s/vmDiskImageDynamicToSave/diskImageDynamic, public access modifier
Line 11: 


http://gerrit.ovirt.org/#/c/27586/13/backend/manager/modules/dal/src/main/java/org/ovirt/engine/core/dao/ImageDaoDbFacadeImpl.java
File 
backend/manager/modules/dal/src/main/java/org/ovirt/engine/core/dao/ImageDaoDbFacadeImpl.java:

Line 15: import org.springframework.jdbc.core.RowMapper;
Line 16: import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
Line 17: 
Line 18: public class ImageDaoDbFacadeImpl extends 
DefaultGenericDaoDbFacade<Image, Guid> implements ImageDao {
Line 19:     private static final Log log = 
LogFactory.getLog(ImageDaoDbFacadeImpl.class);
not related to this change, please remove when rebasing
Line 20: 
Line 21:     public ImageDaoDbFacadeImpl() {
Line 22:         super("Image");
Line 23:     }


http://gerrit.ovirt.org/#/c/27586/13/backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/VdsUpdateRunTimeInfo.java
File 
backend/manager/modules/vdsbroker/src/main/java/org/ovirt/engine/core/vdsbroker/VdsUpdateRunTimeInfo.java:

Line 1617:         }
Line 1618:     }
Line 1619: 
Line 1620:     private void updateRepository(List<Guid> staleRunningVms) {
Line 1621:         // Preload all disks and their image ID for all running VMs
please remove
Line 1622:         for (VmInternalData vmInternalData : _runningVms.values()) {
Line 1623:             VmDynamic runningVm = vmInternalData.getVmDynamic();
Line 1624:             VM vmToUpdate = _vmDict.get(runningVm.getId());
Line 1625: 


http://gerrit.ovirt.org/#/c/27586/13/packaging/dbscripts/disk_image_dynamic_sp.sql
File packaging/dbscripts/disk_image_dynamic_sp.sql:

Line 45: END; $procedure$
Line 46: LANGUAGE plpgsql;
Line 47: 
Line 48: 
Line 49: Create or replace FUNCTION 
Updatedisk_image_dynamic_by_disk_id(v_image_id UUID,
/s/v_image_id/v_image_group_id
Line 50:        v_read_rate INTEGER ,
Line 51:        v_write_rate INTEGER ,
Line 52:        v_actual_size BIGINT ,
Line 53:        v_read_latency_seconds numeric(18,9) ,


Line 58:        --The [disk_image_dynamic] table doesn't have a timestamp 
column. Optimistic concurrency logic cannot be generated
Line 59:    AS $procedure$
Line 60: BEGIN
Line 61:       UPDATE disk_image_dynamic
Line 62:       SET read_rate = v_read_rate,write_rate = 
v_write_rate,actual_size = v_actual_size,read_latency_seconds = 
v_read_latency_seconds,write_latency_seconds = 
v_write_latency_seconds,flush_latency_seconds = v_flush_latency_seconds, 
_update_date = LOCALTIMESTAMP
consider use the update stored procedure to avoid the duplication.
Line 63:       WHERE image_id in (SELECT distinct image_guid
Line 64:                FROM   images
Line 65:                WHERE  image_group_id = v_image_id and active = true);
Line 66: END; $procedure$


http://gerrit.ovirt.org/#/c/27586/13/packaging/dbscripts/images_sp.sql
File packaging/dbscripts/images_sp.sql:

Line 191
Line 192
Line 193
Line 194
Line 195
can be removed when you rebase


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Gerrit-MessageType: comment
Gerrit-Change-Id: I94e20d782bc4e2befaf4338f51551a2855509769
Gerrit-PatchSet: 13
Gerrit-Project: ovirt-engine
Gerrit-Branch: master
Gerrit-Owner: Liran Zelkha <[email protected]>
Gerrit-Reviewer: Allon Mureinik <[email protected]>
Gerrit-Reviewer: Barak Azulay <[email protected]>
Gerrit-Reviewer: Eli Mesika <[email protected]>
Gerrit-Reviewer: Liran Zelkha <[email protected]>
Gerrit-Reviewer: Liron Ar <[email protected]>
Gerrit-Reviewer: Omer Frenkel <[email protected]>
Gerrit-Reviewer: Oved Ourfali <[email protected]>
Gerrit-Reviewer: Roy Golan <[email protected]>
Gerrit-Reviewer: [email protected]
Gerrit-Reviewer: oVirt Jenkins CI Server
Gerrit-HasComments: Yes
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