[
https://issues.apache.org/jira/browse/RANGER-3014?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Georgi Ivanov updated RANGER-3014:
----------------------------------
Description:
Since we upgraded to Ranger 2.1.0 in our dev env, we've noticed that user list
page in Ranger Admin UI is not showing (or it is very very slow - in the order
of tens of minutes).
Looking at the commit history we found that the reason was commit *f45054d1b9*
which was meant as a performance improvement for RANGER-2789. Our ranger
usersync fetches users and groups from AD. Our tree is huge, here are some
stats:
{code:java}
select count(*) from x_user;
43368
select count(*) from x_portal_user;
43366
select count(*) from x_group;
17865
select count(*) from x_group_users;
366180 {code}
Looking at the commit *f45054d1b9* what it meant to solve is perform a user
lookup and fetching user info such as attributes and group membership in bulk,
instead of doing it in a loop, one by one. In order to do that it provided
couple of methods and also an override for searchXUsers in
service/XUserService.java (before we used the parent method in
service/XUserServiceBase.java).
The new searchXUsers method (which gets invoked when we call
/service/xusers/users REST API, calls populateViewBeans (another new method).
It calls the parent method populateViewBeans in XUserServiceBase.java which
build a hashmap or users and calls an override of populateViewBeans with input
hashmap
{code:java}
+ public List<VXUser> populateViewBeans(List<XXUser> resources) {
+ List<VXUser> viewBeans = new ArrayList<>();
+ if (CollectionUtils.isNotEmpty(resources)) {
+ Map<XXUser, VXUser> resourceViewBeanMap = new
HashMap<>(resources.size());
+ Map<VXUser, XXUser> viewBeanResourceMap = new
HashMap<>(resources.size());
+ for (XXUser resource : resources) {
+ VXUser viewBean = createViewObject();
+
viewBean.setCredStoreId(resource.getCredStoreId());
+
viewBean.setDescription(resource.getDescription());
+ viewBean.setName(resource.getName());
+ viewBean.setStatus(resource.getStatus());
+ resourceViewBeanMap.put(resource, viewBean);
+ viewBeanResourceMap.put(viewBean, resource);
+ viewBeans.add(viewBean);
+ }
+ populateViewBeans(resourceViewBeanMap);
+ mapEntityToViewBeans(viewBeanResourceMap);
+ }
+ return viewBeans;
+ }
+
+ protected void populateViewBeans(Map<XXUser, VXUser>
resourceViewBeanMap) {
+ mapBaseAttributesToViewBeans(resourceViewBeanMap);
+ } {code}
This in turns calls mapBaseAttributesToViewBeans, which calls
daoManager.getXXPortalUser().findAllXPortalUser() and it pulls all users (no
matter that we limit the users with a REST call to 25 by default)
That's one thing that hampers performance. However the biggest issue is this:
{code:java}
+ @Override
+ public List<VXUser> populateViewBeans(List<XXUser> xUsers) {
+ List<VXUser> vObjList = super.populateViewBeans(xUsers);
+ if (CollectionUtils.isNotEmpty(vObjList) &&
CollectionUtils.isNotEmpty(xUsers) && xUsers.size() == vObjList.size()) {
+ Map<Long, VXUser> xUserIdVObjMap = new
HashMap<>(xUsers.size());
+ for (int i = 0; i < xUsers.size(); ++i) {
+ VXUser vObj = vObjList.get(i);
+ XXUser xUser = xUsers.get(i);
+ vObj.setIsVisible(xUser.getIsVisible());
+ xUserIdVObjMap.put(xUser.getId(), vObj);
+ }
+ populateGroupList(xUserIdVObjMap);
+ }
+ return vObjList;
+ } {code}
We call populateGroupList on the list of users (by default 25) but we call a
new method that accepts a map as an input. Inside that method we call
{code:java}
List<XXGroupUser> allXXGroupUsers = daoManager.getXXGroupUser().getAll(); {code}
Which in our case will pull all 366180 group to user membership mappings from
x_group_users table.
Next we filter through the whole group list just to find all users who have
memberships in those group (but we traverse the whole group membership list)
{code:java}
if (MapUtils.isNotEmpty(xUserIdVObjMap) &&
CollectionUtils.isNotEmpty(allXXGroupUsers)) {
Map<Long, List<XXGroupUser>> userIdXXGroupUserMap = new
HashMap<>(xUserIdVObjMap.size());
for (Map.Entry<Long, VXUser> xUserIdVXUserEntry :
xUserIdVObjMap.entrySet()) {
Long xUserId = xUserIdVXUserEntry.getKey();
List<XXGroupUser> xxGroupUsers = allXXGroupUsers
.stream()
.filter(xXGroupUser ->
Objects.equals(xXGroupUser.getUserId(), xUserId))
.collect(Collectors.toList());
userIdXXGroupUserMap.put(xUserId, xxGroupUsers); {code}
This is what happens when we open Ranger and go the User UI. We make a
paginated request to view the first 25 users from the DB, but actually what
ranger does is pulling all users from the DB and also traversing the whole
group-to-user membership list.
When reverting the commit to go to the old behaviour things went back to
normal. We understand the rationale against this but the implementation
introduces more bugs than it tries to solve.
was:
Since we upgraded to Ranger 2.1.0 in our dev env, we've noticed that user list
page in Ranger Admin UI is not showing (or it is very very slow - in the order
of tens of minutes).
Looking at the commit history we found that the reason was commit *f45054d1b9*
which was meant as a performance improvement for RANGER-2789. Our ranger
usersync fetches users and groups from AD. Our tree is huge, here are some
stats:
{code:java}
select count(*) from x_user;
43368
select count(*) from x_portal_user;
43366
select count(*) from x_group;
17865
select count(*) from x_group_users;
366180 {code}
Looking at the commit *f45054d1b9* what it meant to solve is perform a user
lookup and fetching user info such as attributes and group membership in bulk,
instead of doing it in a loop, one by one. In order to do that it provided
couple of methods and also an override for searchXUsers in
service/XUserService.java (before we used the parent method in
service/XUserServiceBase.java).
The new searchXUsers method (which gets invoked when we call
/service/xusers/users REST API, calls populateViewBeans (another new method).
It calls the parent method populateViewBeans in XUserServiceBase.java which
build a hashmap or users and calls an override of populateViewBeans with input
hashmap
{code:java}
+ public List<VXUser> populateViewBeans(List<XXUser> resources) {
+ List<VXUser> viewBeans = new ArrayList<>();
+ if (CollectionUtils.isNotEmpty(resources)) {
+ Map<XXUser, VXUser> resourceViewBeanMap = new
HashMap<>(resources.size());
+ Map<VXUser, XXUser> viewBeanResourceMap = new
HashMap<>(resources.size());
+ for (XXUser resource : resources) {
+ VXUser viewBean = createViewObject();
+
viewBean.setCredStoreId(resource.getCredStoreId());
+
viewBean.setDescription(resource.getDescription());
+ viewBean.setName(resource.getName());
+ viewBean.setStatus(resource.getStatus());
+ resourceViewBeanMap.put(resource, viewBean);
+ viewBeanResourceMap.put(viewBean, resource);
+ viewBeans.add(viewBean);
+ }
+ populateViewBeans(resourceViewBeanMap);
+ mapEntityToViewBeans(viewBeanResourceMap);
+ }
+ return viewBeans;
+ }
+
+ protected void populateViewBeans(Map<XXUser, VXUser>
resourceViewBeanMap) {
+ mapBaseAttributesToViewBeans(resourceViewBeanMap);
+ } {code}
This in turns calls mapBaseAttributesToViewBeans, which calls
daoManager.getXXPortalUser().findAllXPortalUser() and it pulls all users (no
matter that we limit the users with a REST call to 25 by default)
That's one thing that hampers performance. However the biggest issue is this:
{code:java}
+ @Override
+ public List<VXUser> populateViewBeans(List<XXUser> xUsers) {
+ List<VXUser> vObjList = super.populateViewBeans(xUsers);
+ if (CollectionUtils.isNotEmpty(vObjList) &&
CollectionUtils.isNotEmpty(xUsers) && xUsers.size() == vObjList.size()) {
+ Map<Long, VXUser> xUserIdVObjMap = new
HashMap<>(xUsers.size());
+ for (int i = 0; i < xUsers.size(); ++i) {
+ VXUser vObj = vObjList.get(i);
+ XXUser xUser = xUsers.get(i);
+ vObj.setIsVisible(xUser.getIsVisible());
+ xUserIdVObjMap.put(xUser.getId(), vObj);
+ }
+ populateGroupList(xUserIdVObjMap);
+ }
+ return vObjList;
+ } {code}
We call populateGroupList on the list of users (by default 25) but we call a
new method that accepts a map as an input. Inside that method we call
{code:java}
List<XXGroupUser> allXXGroupUsers = daoManager.getXXGroupUser().getAll(); {code}
Which in our case will pull all 366180 group to user membership mappings from
x_group_users table.
Next we filter through the whole group list just to filler all users who have
memberships in those group (but we traverse the whole group membership list)
{code:java}
if (MapUtils.isNotEmpty(xUserIdVObjMap) &&
CollectionUtils.isNotEmpty(allXXGroupUsers)) {
Map<Long, List<XXGroupUser>> userIdXXGroupUserMap = new
HashMap<>(xUserIdVObjMap.size());
for (Map.Entry<Long, VXUser> xUserIdVXUserEntry :
xUserIdVObjMap.entrySet()) {
Long xUserId = xUserIdVXUserEntry.getKey();
List<XXGroupUser> xxGroupUsers = allXXGroupUsers
.stream()
.filter(xXGroupUser ->
Objects.equals(xXGroupUser.getUserId(), xUserId))
.collect(Collectors.toList());
userIdXXGroupUserMap.put(xUserId, xxGroupUsers); {code}
This is what happens when we open Ranger and go the User UI. We make a
paginated request to view the first 25 users from the DB, but actually what
ranger does is pulling all users from the DB and also traversing the whole
group-to-user membership list.
When reverting the commit to go to the old behaviour things went back to
normal. We understand the rationale against this but the implementation
introduces more bugs than it tries to solve.
> fix for RANGER-2789 breaks current functionality
> ------------------------------------------------
>
> Key: RANGER-3014
> URL: https://issues.apache.org/jira/browse/RANGER-3014
> Project: Ranger
> Issue Type: Bug
> Components: admin
> Reporter: Georgi Ivanov
> Priority: Major
>
> Since we upgraded to Ranger 2.1.0 in our dev env, we've noticed that user
> list page in Ranger Admin UI is not showing (or it is very very slow - in the
> order of tens of minutes).
> Looking at the commit history we found that the reason was commit
> *f45054d1b9* which was meant as a performance improvement for RANGER-2789.
> Our ranger usersync fetches users and groups from AD. Our tree is huge, here
> are some stats:
> {code:java}
> select count(*) from x_user;
> 43368
> select count(*) from x_portal_user;
> 43366
> select count(*) from x_group;
> 17865
> select count(*) from x_group_users;
> 366180 {code}
>
> Looking at the commit *f45054d1b9* what it meant to solve is perform a user
> lookup and fetching user info such as attributes and group membership in
> bulk, instead of doing it in a loop, one by one. In order to do that it
> provided couple of methods and also an override for searchXUsers in
> service/XUserService.java (before we used the parent method in
> service/XUserServiceBase.java).
>
> The new searchXUsers method (which gets invoked when we call
> /service/xusers/users REST API, calls populateViewBeans (another new method).
> It calls the parent method populateViewBeans in XUserServiceBase.java which
> build a hashmap or users and calls an override of populateViewBeans with
> input hashmap
> {code:java}
> + public List<VXUser> populateViewBeans(List<XXUser> resources) {
> + List<VXUser> viewBeans = new ArrayList<>();
> + if (CollectionUtils.isNotEmpty(resources)) {
> + Map<XXUser, VXUser> resourceViewBeanMap = new
> HashMap<>(resources.size());
> + Map<VXUser, XXUser> viewBeanResourceMap = new
> HashMap<>(resources.size());
> + for (XXUser resource : resources) {
> + VXUser viewBean = createViewObject();
> +
> viewBean.setCredStoreId(resource.getCredStoreId());
> +
> viewBean.setDescription(resource.getDescription());
> + viewBean.setName(resource.getName());
> + viewBean.setStatus(resource.getStatus());
> + resourceViewBeanMap.put(resource, viewBean);
> + viewBeanResourceMap.put(viewBean, resource);
> + viewBeans.add(viewBean);
> + }
> + populateViewBeans(resourceViewBeanMap);
> + mapEntityToViewBeans(viewBeanResourceMap);
> + }
> + return viewBeans;
> + }
> +
> + protected void populateViewBeans(Map<XXUser, VXUser>
> resourceViewBeanMap) {
> + mapBaseAttributesToViewBeans(resourceViewBeanMap);
> + } {code}
>
> This in turns calls mapBaseAttributesToViewBeans, which calls
> daoManager.getXXPortalUser().findAllXPortalUser() and it pulls all users (no
> matter that we limit the users with a REST call to 25 by default)
> That's one thing that hampers performance. However the biggest issue is this:
> {code:java}
> + @Override
> + public List<VXUser> populateViewBeans(List<XXUser> xUsers) {
> + List<VXUser> vObjList = super.populateViewBeans(xUsers);
> + if (CollectionUtils.isNotEmpty(vObjList) &&
> CollectionUtils.isNotEmpty(xUsers) && xUsers.size() == vObjList.size()) {
> + Map<Long, VXUser> xUserIdVObjMap = new
> HashMap<>(xUsers.size());
> + for (int i = 0; i < xUsers.size(); ++i) {
> + VXUser vObj = vObjList.get(i);
> + XXUser xUser = xUsers.get(i);
> + vObj.setIsVisible(xUser.getIsVisible());
> + xUserIdVObjMap.put(xUser.getId(), vObj);
> + }
> + populateGroupList(xUserIdVObjMap);
> + }
> + return vObjList;
> + } {code}
> We call populateGroupList on the list of users (by default 25) but we call a
> new method that accepts a map as an input. Inside that method we call
> {code:java}
> List<XXGroupUser> allXXGroupUsers = daoManager.getXXGroupUser().getAll();
> {code}
> Which in our case will pull all 366180 group to user membership mappings from
> x_group_users table.
> Next we filter through the whole group list just to find all users who have
> memberships in those group (but we traverse the whole group membership list)
> {code:java}
> if (MapUtils.isNotEmpty(xUserIdVObjMap) &&
> CollectionUtils.isNotEmpty(allXXGroupUsers)) {
> Map<Long, List<XXGroupUser>> userIdXXGroupUserMap = new
> HashMap<>(xUserIdVObjMap.size());
> for (Map.Entry<Long, VXUser> xUserIdVXUserEntry :
> xUserIdVObjMap.entrySet()) {
> Long xUserId = xUserIdVXUserEntry.getKey();
> List<XXGroupUser> xxGroupUsers = allXXGroupUsers
> .stream()
> .filter(xXGroupUser ->
> Objects.equals(xXGroupUser.getUserId(), xUserId))
> .collect(Collectors.toList());
> userIdXXGroupUserMap.put(xUserId, xxGroupUsers); {code}
> This is what happens when we open Ranger and go the User UI. We make a
> paginated request to view the first 25 users from the DB, but actually what
> ranger does is pulling all users from the DB and also traversing the whole
> group-to-user membership list.
>
> When reverting the commit to go to the old behaviour things went back to
> normal. We understand the rationale against this but the implementation
> introduces more bugs than it tries to solve.
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