# Percona Server for MongoDB **URL:** https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=10 [Latest](https://forums.percona.com/latest.md) · [Categories](https://forums.percona.com/categories.md) · [Tags](https://forums.percona.com/tags.md) **Page:** 11 --- ## [WiredTiger error .. "error":95" .. fallocate:: Operation not supported](https://forums.percona.com/t/wiredtiger-error-error-95-fallocate-operation-not-supported/7988)
**Author:** [@daniil.bazhenov](https://forums.percona.com/u/daniil.bazhenov)\ **Replies:** 9\ **Last updated:** [November 10, 2020, 12:21am UTC](https://forums.percona.com/t/wiredtiger-error-error-95-fallocate-operation-not-supported/7988 "2020-11-10T00:21:10Z")
Hi, I’m just experimenting with MongoDB. I get the following errors when I start a container with the database. psmdb\_1 | {"t":{"$date":"2020-09-01T19:50:00.963+00:00"},"s":"E", "c":"STORAGE", "id":22435, "ctx":"threa… --- ## [I have installed percona client it is running fine wirh mongo 3.6 but not supporting mongo4 version](https://forums.percona.com/t/i-have-installed-percona-client-it-is-running-fine-wirh-mongo-3-6-but-not-supporting-mongo4-version/8247)
**Author:** [@darshit](https://forums.percona.com/u/darshit)\ **Replies:** 2\ **Last updated:** [November 9, 2020, 6:05am UTC](https://forums.percona.com/t/i-have-installed-percona-client-it-is-running-fine-wirh-mongo-3-6-but-not-supporting-mongo4-version/8247 "2020-11-09T06:05:35Z")
Please suggest solution for it --- ## [Mongod Percona private libs vs. system installed](https://forums.percona.com/t/mongod-percona-private-libs-vs-system-installed/8228)
**Author:** [@Nils](https://forums.percona.com/u/Nils)\ **Replies:** 1\ **Last updated:** [November 8, 2020, 10:29pm UTC](https://forums.percona.com/t/mongod-percona-private-libs-vs-system-installed/8228 "2020-11-08T22:29:11Z")
I have an installation of percona-server-mongodb-4.4.1-3-x86\_64.glibc2.17.tar.gz on RHEL7 and problems with SASL authentication to Active Directory. I noticed that the server comes with a set of private libs that partial… --- ## [Moved: Percona Server for MongoDB 4.2.10-11 Released](https://forums.percona.com/t/moved-percona-server-for-mongodb-4-2-10-11-released/8232)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 0\ **Last updated:** [November 3, 2020, 8:22pm UTC](https://forums.percona.com/t/moved-percona-server-for-mongodb-4-2-10-11-released/8232 "2020-11-03T20:22:01Z")
This discussion has been moved. --- ## [Build Monogdb V4.2.9-10 on arm64 fail](https://forums.percona.com/t/build-monogdb-v4-2-9-10-on-arm64-fail/8163)
**Author:** [@dalei](https://forums.percona.com/u/dalei)\ **Replies:** 1\ **Last updated:** [October 22, 2020, 8:03pm UTC](https://forums.percona.com/t/build-monogdb-v4-2-9-10-on-arm64-fail/8163 "2020-10-22T20:03:07Z")
Build Monogdb V4.2.9-10 on arm64 fail When I build mongod/mongos on arm64 ，a large number of error like this： Compiling build/opt/mongo/db/commands/enable\_coordinator\_for\_create\_indexes\_command\_gen.o src/mongo/db/stor… --- ## [Moved: Percona Server for MongoDB 3.6.20-9.0 Released](https://forums.percona.com/t/moved-percona-server-for-mongodb-3-6-20-9-0-released/8168)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 0\ **Last updated:** [October 22, 2020, 7:59pm UTC](https://forums.percona.com/t/moved-percona-server-for-mongodb-3-6-20-9-0-released/8168 "2020-10-22T19:59:49Z")
This discussion has been moved. --- ## [Unable to take backup on s3 if file size is more than 5GB](https://forums.percona.com/t/unable-to-take-backup-on-s3-if-file-size-is-more-than-5gb/7998)
**Author:** [@sbotlagunta](https://forums.percona.com/u/sbotlagunta)\ **Replies:** 6\ **Last updated:** [October 19, 2020, 4:46am UTC](https://forums.percona.com/t/unable-to-take-backup-on-s3-if-file-size-is-more-than-5gb/7998 "2020-10-19T04:46:22Z")
Hi Team, we got this error “errmsg” : “Cannot backup ‘/db/perconaServerBackup/collection.wt’ : EntityTooLarge : Unable to parse ExceptionName: EntityTooLarge Message: Your proposed upload exceeds the maximum allowed siz… --- ## [Security Fix Releases for Percona Server for MongoDB](https://forums.percona.com/t/security-fix-releases-for-percona-server-for-mongodb/8122)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 0\ **Last updated:** [October 9, 2020, 8:01pm UTC](https://forums.percona.com/t/security-fix-releases-for-percona-server-for-mongodb/8122 "2020-10-09T20:01:21Z")
October 9, 2020. See https://forums.percona.com/discussion/56305/security-fix-releases-for-percona-server-for-mongodb-percona-distribution-for-mongodb/p1?new=1 --- ## [Cannot authenticate to a docker container with inMemory engine and initial root use and password](https://forums.percona.com/t/cannot-authenticate-to-a-docker-container-with-inmemory-engine-and-initial-root-use-and-password/8093)
**Author:** [@Raziel](https://forums.percona.com/u/Raziel)\ **Replies:** 1\ **Last updated:** [October 8, 2020, 5:40am UTC](https://forums.percona.com/t/cannot-authenticate-to-a-docker-container-with-inmemory-engine-and-initial-root-use-and-password/8093 "2020-10-08T05:40:22Z")
Hi, I’m trying to create a docker container with the inMemory engine and initial root user and password by using this command: docker run -d -p 27021:27017 --name percona -e MONGO\_INITDB\_ROOT\_USERNAME=admin -e MONGO\_IN… --- ## [Initial sync fails](https://forums.percona.com/t/initial-sync-fails/8091)
**Author:** [@anteploon](https://forums.percona.com/u/anteploon)\ **Replies:** 1\ **Last updated:** [October 7, 2020, 7:12am UTC](https://forums.percona.com/t/initial-sync-fails/8091 "2020-10-07T07:12:29Z")
I have replica set with members running Percona Server for MongoDB v4.2.8-8 I try to add a new member running Percona Server for MongoDB v4.2.9-9, but it keeps failing even if I try a different sync source. Here are re… --- ## [No difference in performance between wiredtiger and in-memory engines, any idea why?](https://forums.percona.com/t/no-difference-in-performance-between-wiredtiger-and-in-memory-engines-any-idea-why/8071)
**Author:** [@jlidiborhen](https://forums.percona.com/u/jlidiborhen)\ **Replies:** 1\ **Last updated:** [October 2, 2020, 6:23am UTC](https://forums.percona.com/t/no-difference-in-performance-between-wiredtiger-and-in-memory-engines-any-idea-why/8071 "2020-10-02T06:23:25Z")
Hi, I’ve been testing Percona Server for MongoDB with focus on in-memory engine performance. I’ve noticed that wiredtiger engine sometimes performs better than in-memory engine for insertOne and insertMany (10000 docum… --- ## [Percona Server for MongoDB 4.0.20-13 Released](https://forums.percona.com/t/percona-server-for-mongodb-4-0-20-13-released/8001)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 0\ **Last updated:** [September 3, 2020, 1:54pm UTC](https://forums.percona.com/t/percona-server-for-mongodb-4-0-20-13-released/8001 "2020-09-03T13:54:28Z")
See release note at https://www.percona.com/doc/percona-server-for-mongodb/4.0/release\_notes/4.0.20-13.html --- ## [Percona Server for MongoDB ver 4.4.0-1 Released](https://forums.percona.com/t/percona-server-for-mongodb-ver-4-4-0-1-released/7970)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 0\ **Last updated:** [August 27, 2020, 3:00pm UTC](https://forums.percona.com/t/percona-server-for-mongodb-ver-4-4-0-1-released/7970 "2020-08-27T15:00:33Z")
See 2020-08-26 release notes at Percona Server for MongoDB 4.4.0-1 — Percona Server for MongoDB 4.4 Documentation --- ## [How to restore a backup to another Kubernetes cluster?](https://forums.percona.com/t/how-to-restore-a-backup-to-another-kubernetes-cluster/7867)
**Author:** [@cym0301](https://forums.percona.com/u/cym0301)\ **Replies:** 1\ **Last updated:** [August 26, 2020, 2:42am UTC](https://forums.percona.com/t/how-to-restore-a-backup-to-another-kubernetes-cluster/7867 "2020-08-26T02:42:40Z")
Hi there, Currently I am doing some POC on the possibility of apply Percona MongoDB on a production site. When I was going through the documentation, I noticed that there seems to be no way to restore a backup to a new … --- ## [Percona Server for MongoDB ver 3.6 Released](https://forums.percona.com/t/percona-server-for-mongodb-ver-3-6-released/7913)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 0\ **Last updated:** [August 14, 2020, 5:12pm UTC](https://forums.percona.com/t/percona-server-for-mongodb-ver-3-6-released/7913 "2020-08-14T17:12:23Z")
See 2020-08-13 release notes at https://www.percona.com/doc/percona-server-for-mongodb/3.6/release\_notes/3.6.19-7.0.html --- ## [Looking for old 3.0.12 or 3.0.15 PSMDB](https://forums.percona.com/t/looking-for-old-3-0-12-or-3-0-15-psmdb/7527)
**Author:** [@Alex\_Kusmenkovsky](https://forums.percona.com/u/Alex_Kusmenkovsky)\ **Replies:** 7\ **Last updated:** [August 13, 2020, 11:45am UTC](https://forums.percona.com/t/looking-for-old-3-0-12-or-3-0-15-psmdb/7527 "2020-08-13T11:45:14Z")
I’ve been looking for the older binaries 3.0.12 or 3.0.15 Percona Server for MongoDB. I have a very old server that must run that exact version. I’ve been able to retrieve a few old links from Google, like this one: http… --- ## [listCollections performance issue in 4.2](https://forums.percona.com/t/listcollections-performance-issue-in-4-2/7842)
**Author:** [@ddoussot](https://forums.percona.com/u/ddoussot)\ **Replies:** 1\ **Last updated:** [August 11, 2020, 8:20pm UTC](https://forums.percona.com/t/listcollections-performance-issue-in-4-2/7842 "2020-08-11T20:20:27Z")
Hi there,We have an application in production with API servers, developped in .Net Core. The APIs call a MongoDB Percona cluster hosted on premise.We have 10 server, and each servers contains 40 API instances.We used to … --- ## [Mongodb rs cluster ldap configuration](https://forums.percona.com/t/mongodb-rs-cluster-ldap-configuration/7781)
**Author:** [@bsiara](https://forums.percona.com/u/bsiara)\ **Replies:** 3\ **Last updated:** [August 11, 2020, 6:25am UTC](https://forums.percona.com/t/mongodb-rs-cluster-ldap-configuration/7781 "2020-08-11T06:25:03Z")
Hi, I want to swich my rs cluster from sasl-ldap to direct ldap conection, this is my configuration: systemLog: destination: file path: /data/mongod.log logAppend: true logRotate: reopen component: accessControl: ver… --- ## [Percona MongoDB InMemory performance tuning](https://forums.percona.com/t/percona-mongodb-inmemory-performance-tuning/7739)
**Author:** [@gck](https://forums.percona.com/u/gck)\ **Replies:** 1\ **Last updated:** [July 14, 2020, 7:36am UTC](https://forums.percona.com/t/percona-mongodb-inmemory-performance-tuning/7739 "2020-07-14T07:36:42Z")
Hello everyone,I’m looking for battle tested tips for tuning MongoDB and OS in order to achieve better throughput and latency. --- ## [Percona Distribution for MongoDB ver 4.2.8 Released](https://forums.percona.com/t/percona-distribution-for-mongodb-ver-4-2-8-released/7762)
**Author:** [@Tom\_Basil](https://forums.percona.com/u/Tom_Basil)\ **Replies:** 1\ **Last updated:** [July 14, 2020, 4:18am UTC](https://forums.percona.com/t/percona-distribution-for-mongodb-ver-4-2-8-released/7762 "2020-07-14T04:18:05Z")
Release notes at https://www.percona.com/doc/percona-distribution-for-mongodb/4.2/release-notes-v4.2.8.html --- ## [Build Monogdb V3.6 on Macos fail](https://forums.percona.com/t/build-monogdb-v3-6-on-macos-fail/7664)
**Author:** [@Lixin](https://forums.percona.com/u/Lixin)\ **Replies:** 1\ **Last updated:** [June 9, 2020, 10:21am UTC](https://forums.percona.com/t/build-monogdb-v3-6-on-macos-fail/7664 "2020-06-09T10:21:33Z")
When I build mongod/mongos on Macos ，a large number of error like this： duplicate symbol ‘mongo::error\_details::isNamedCode\<9\>’ in: build/opt/mongo/s/cluster\_cursor\_stats.o build/opt/mongo/s/mongos\_options.oduplica… --- ## [Permissions Help - LDAP grant create database](https://forums.percona.com/t/permissions-help-ldap-grant-create-database/7616)
**Author:** [@mdiorio](https://forums.percona.com/u/mdiorio)\ **Replies:** 1\ **Last updated:** [May 26, 2020, 2:17am UTC](https://forums.percona.com/t/permissions-help-ldap-grant-create-database/7616 "2020-05-26T02:17:29Z")
I’m really new to MongoDB coming from MSSQL and I’m totally confused right now. I have LDAP configured and working. A user can log into Mongo and with the role I have, can at least view the databases and collections. a… --- ## [Support for LDAP (Active Directory) Security Groups](https://forums.percona.com/t/support-for-ldap-active-directory-security-groups/7590)
**Author:** [@mdiorio](https://forums.percona.com/u/mdiorio)\ **Replies:** 6\ **Last updated:** [May 14, 2020, 6:47am UTC](https://forums.percona.com/t/support-for-ldap-active-directory-security-groups/7590 "2020-05-14T06:47:53Z")
Just starting to use Percona MongoDB - I have AD LDAP set up and can authenticate users. What I haven’t found is information relating to using LDAP/AD Security Groups to grant authorization to the database. Can this be… --- ## [Howto Setup Weblogic DataSource to connect Percona MongoDB servers.](https://forums.percona.com/t/howto-setup-weblogic-datasource-to-connect-percona-mongodb-servers/7622)
**Author:** [@JimHollywood](https://forums.percona.com/u/JimHollywood)\ **Replies:** 0\ **Last updated:** [May 14, 2020, 12:07am UTC](https://forums.percona.com/t/howto-setup-weblogic-datasource-to-connect-percona-mongodb-servers/7622 "2020-05-14T00:07:08Z")
Getting Weblogic Error : An error occurred during activation of changes, please see the log for details.weblogic.common.resourcepool.ResourceSystemException: Cannot instantiate driver com.mongodb.client.MongoClient for d… --- ## [Percona MongoDB 3.4.24 is not starting due to /data/db/db/MANIFEST-5415975: No such file or director](https://forums.percona.com/t/percona-mongodb-3-4-24-is-not-starting-due-to-data-db-db-manifest-5415975-no-such-file-or-director/7615)
**Author:** [@arckid](https://forums.percona.com/u/arckid)\ **Replies:** 2\ **Last updated:** [May 11, 2020, 10:43am UTC](https://forums.percona.com/t/percona-mongodb-3-4-24-is-not-starting-due-to-data-db-db-manifest-5415975-no-such-file-or-director/7615 "2020-05-11T10:43:43Z")
Hello Percona Team, Server is not starting up. We are on Percona MongoDB 3.We are receiving this error: \[initandlisten\] Invariant failure: s resulted in status InternalError: IO error: While opening a file for sequenti… --- ## [MongoDB v3.6 ReplicaSet, slow choosing node time on connection?](https://forums.percona.com/t/mongodb-v3-6-replicaset-slow-choosing-node-time-on-connection/7598)
**Author:** [@jbiancot](https://forums.percona.com/u/jbiancot)\ **Replies:** 1\ **Last updated:** [May 7, 2020, 2:53am UTC](https://forums.percona.com/t/mongodb-v3-6-replicaset-slow-choosing-node-time-on-connection/7598 "2020-05-07T02:53:07Z")
Hello there, Last Saturday we were doing some deployment/maintenance on our backends. We did a rolling restart “one at the time” of our Percona MongoDB cluster. After the reboots doing some QA we noticed some slowness wh… --- ## [\[error\]: Percona backup for MongoDB -- Error while doing Restore -- "not master"](https://forums.percona.com/t/error-percona-backup-for-mongodb-error-while-doing-restore-not-master/7538)
**Author:** [@Gowtham\_Raj](https://forums.percona.com/u/Gowtham_Raj)\ **Replies:** 1\ **Last updated:** [May 7, 2020, 2:44am UTC](https://forums.percona.com/t/error-percona-backup-for-mongodb-error-while-doing-restore-not-master/7538 "2020-05-07T02:44:11Z")
Hello team, pbm version: Version:   1.1.1Platform:  linux/amd64GitCommit: 457bc0eaf861c8c15c997333ce1d8108a138874bGitBranch: masterBuildTime: 2020-01-31\_08:16\_UTCGoVersion: go1.12.9 pbm\_config.yaml st… --- ## [mongod instance restart not working](https://forums.percona.com/t/mongod-instance-restart-not-working/7462)
**Author:** [@ashenoy9](https://forums.percona.com/u/ashenoy9)\ **Replies:** 1\ **Last updated:** [May 7, 2020, 2:38am UTC](https://forums.percona.com/t/mongod-instance-restart-not-working/7462 "2020-05-07T02:38:07Z")
I installed Percona for mongodb and they seem to work fine as a standalone instance. However, when I try to create a replica set , the startup is failing with the below message. It is not taking the parameter changes in … --- ## [\[question\] Percona backup for MongoDB - limits and architecture](https://forums.percona.com/t/question-percona-backup-for-mongodb-limits-and-architecture/7537)
**Author:** [@Gowtham\_Raj](https://forums.percona.com/u/Gowtham_Raj)\ **Replies:** 1\ **Last updated:** [April 20, 2020, 8:11pm UTC](https://forums.percona.com/t/question-percona-backup-for-mongodb-limits-and-architecture/7537 "2020-04-20T20:11:31Z")
Hello team, Thanks for this awesome tool. I have below doubts. 1. How does this tool take backup and how is this different from Mongo Dump? 2 As per online docs, pbm seems to be light weight than Mongo Dump –\> How are w… --- ## [\[error\]: Percona backup for MongoDB -- Error while doing Restore -- "not master"](https://forums.percona.com/t/error-percona-backup-for-mongodb-error-while-doing-restore-not-master/7535)
**Author:** [@Gowtham\_Raj](https://forums.percona.com/u/Gowtham_Raj)\ **Replies:** 3\ **Last updated:** [April 15, 2020, 10:08am UTC](https://forums.percona.com/t/error-percona-backup-for-mongodb-error-while-doing-restore-not-master/7535 "2020-04-15T10:08:41Z")
Hello team, pbm version: Version:   1.1.1Platform:  linux/amd64GitCommit: 457bc0eaf861c8c15c997333ce1d8108a138874bGitBranch: masterBuildTime: 2020-01-31\_08:16\_UTCGoVersion: go1.12.9 pbm\_config.yaml st… [Previous page](https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=9) [Next page](https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=11)