# Percona Server for MongoDB **URL:** https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=12 [Latest](https://forums.percona.com/latest.md) · [Categories](https://forums.percona.com/categories.md) · [Tags](https://forums.percona.com/tags.md) **Page:** 13 --- ## [recoverShardingState parameter not available on percona mongodb 3.4](https://forums.percona.com/t/recovershardingstate-parameter-not-available-on-percona-mongodb-3-4/6618)
**Author:** [@jamwu](https://forums.percona.com/u/jamwu)\ **Replies:** 1\ **Last updated:** [October 10, 2018, 9:53am UTC](https://forums.percona.com/t/recovershardingstate-parameter-not-available-on-percona-mongodb-3-4/6618 "2018-10-10T09:53:15Z")
I’m reading the docs on how to restore a sharded cluster backup I made with hotbackup here: \[url\]Restore a Sharded Cluster — MongoDB Manual Step 6 requires starting Mongodb with the parameter “recoverShardingState” set… --- ## [what IDE tool to use to debug MongoDB source code?](https://forums.percona.com/t/what-ide-tool-to-use-to-debug-mongodb-source-code/6599)
**Author:** [@fuzhiyu](https://forums.percona.com/u/fuzhiyu)\ **Replies:** 0\ **Last updated:** [September 28, 2018, 5:59am UTC](https://forums.percona.com/t/what-ide-tool-to-use-to-debug-mongodb-source-code/6599 "2018-09-28T05:59:49Z")
\[INDENT\]Percona has always been my favorite database, I would like to ask Percona to use what tools or IDE to debug MongoDB source code. I’ve been looking to debug the MongoDB source code tool,but have not found the rig… --- ## [add mongodb:metrics problem](https://forums.percona.com/t/add-mongodb-metrics-problem/6484)
**Author:** [@hakim](https://forums.percona.com/u/hakim)\ **Replies:** 4\ **Last updated:** [September 18, 2018, 6:49am UTC](https://forums.percona.com/t/add-mongodb-metrics-problem/6484 "2018-09-18T06:49:25Z")
Hello everyone , i have a problem when i put the command “pmm-admin add mongodb” in a client , i receive this error message : can anyone help me please ? just for your information , i am able with the same client to … --- ## [LDAP Issue for 3.6](https://forums.percona.com/t/ldap-issue-for-3-6/6550)
**Author:** [@Dzzl](https://forums.percona.com/u/Dzzl)\ **Replies:** 4\ **Last updated:** [September 10, 2018, 5:10pm UTC](https://forums.percona.com/t/ldap-issue-for-3-6/6550 "2018-09-10T17:10:14Z")
Im getting Error: Authentication failed when trying to connect to my companies ldap server when logging in. testsaslauthd works fine. Does this only work with OpenLDAP?? We installed Mongo 4.0 Enterprise and its able to … --- ## [WiredTiger Compression Degradation](https://forums.percona.com/t/wiredtiger-compression-degradation/6530)
**Author:** [@tanveermadan](https://forums.percona.com/u/tanveermadan)\ **Replies:** 0\ **Last updated:** [August 23, 2018, 2:04am UTC](https://forums.percona.com/t/wiredtiger-compression-degradation/6530 "2018-08-23T02:04:12Z")
Hi, We recently upgraded out MongoDB from community version 3.4.14 to 4.0.1 We see that the compression ratio differs for the same type of data between the version Hence we did a test and found that compression ratio … --- ## [Percona Server for MongoDB 3.6.5-1.3 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-6-5-1-3-is-now-available/6464)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [July 17, 2018, 6:24am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-6-5-1-3-is-now-available/6464 "2018-07-17T06:24:22Z")
Percona announces the release ofPercona Server for MongoDB3.6.5-1.3 on July 11, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enhanced… --- ## [Percona Server for MongoDB 3.4.15-2.13 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-4-15-2-13-is-now-available/6420)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [June 21, 2018, 2:25am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-4-15-2-13-is-now-available/6420 "2018-06-21T02:25:59Z")
Percona announces the release ofPercona Server for MongoDB 3.4.15-2.13 on June 20, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enhan… --- ## [Percona Server for MongoDB 3.6.4-1.2 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-6-4-1-2-is-now-available/6378)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [May 24, 2018, 7:42am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-6-4-1-2-is-now-available/6378 "2018-05-24T07:42:03Z")
Percona announces the release ofPercona Server for MongoDB3.6.4-1.2 on May 23, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enhanced,… --- ## [Performance issues using cursor.toArray()](https://forums.percona.com/t/performance-issues-using-cursor-toarray/6347)
**Author:** [@sudharshan](https://forums.percona.com/u/sudharshan)\ **Replies:** 0\ **Last updated:** [May 9, 2018, 2:30pm UTC](https://forums.percona.com/t/performance-issues-using-cursor-toarray/6347 "2018-05-09T14:30:42Z")
I am using cursor.toArray() to return collection.find(query)as list, the response time for my API is in 100’s of milliseconds. Data fetched into the cursor is very less (a couple of hundred records), the database is inde… --- ## [Issues with add and drop user on Percona Mongo 3.2.18-3.9 cluster with delayed nodes](https://forums.percona.com/t/issues-with-add-and-drop-user-on-percona-mongo-3-2-18-3-9-cluster-with-delayed-nodes/6321)
**Author:** [@douglas.levy](https://forums.percona.com/u/douglas.levy)\ **Replies:** 4\ **Last updated:** [May 5, 2018, 3:12am UTC](https://forums.percona.com/t/issues-with-add-and-drop-user-on-percona-mongo-3-2-18-3-9-cluster-with-delayed-nodes/6321 "2018-05-05T03:12:05Z")
Hi, I am not a mongo expert, although I am familiar with the product. I am running a Percona Mongo 3.2.18-3.9 cluster with 7 nodes, two of which are delayed nodes (24 hr delay). When I attempt to drop or add users fro… --- ## [Percona Server for MongoDB 3.6.3-1.1 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-6-3-1-1-is-now-available/6320)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [April 24, 2018, 12:10pm UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-6-3-1-1-is-now-available/6320 "2018-04-24T12:10:18Z")
Percona announces the release of Percona Server for MongoDB 3.6.3-1.1 on April 24, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enhan… --- ## [Percona Server for MongoDB 3.4.14-2.12 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-4-14-2-12-is-now-available/6298)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [April 13, 2018, 4:18am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-4-14-2-12-is-now-available/6298 "2018-04-13T04:18:45Z")
Percona announces the release ofPercona Server for MongoDB 3.4.14-2.12 on April 12, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enha… --- ## [Percona Server for MongoDB 3.2.19-3.10 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-2-19-3-10-is-now-available/6259)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [March 19, 2018, 4:42am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-2-19-3-10-is-now-available/6259 "2018-03-19T04:42:16Z")
Percona announces the release of Percona Server for MongoDB 3.2.19-3.10on March 16, 2018. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enha… --- ## [Shared memory Kernel parameters - Recommendation for Percona server for mongoDB](https://forums.percona.com/t/shared-memory-kernel-parameters-recommendation-for-percona-server-for-mongodb/6244)
**Author:** [@pandiann](https://forums.percona.com/u/pandiann)\ **Replies:** 1\ **Last updated:** [March 12, 2018, 4:09am UTC](https://forums.percona.com/t/shared-memory-kernel-parameters-recommendation-for-percona-server-for-mongodb/6244 "2018-03-12T04:09:58Z")
There is no recommendation for below kernel parameters from percona side. Please check and confirm whether any of these parameters has to be setup or its not required for percona server for MongoDB enviroment or server. … --- ## [Percona for MongoDB inMemory Storage Engine Performance Expectations](https://forums.percona.com/t/percona-for-mongodb-inmemory-storage-engine-performance-expectations/6103)
**Author:** [@hyurtseven](https://forums.percona.com/u/hyurtseven)\ **Replies:** 1\ **Last updated:** [January 19, 2018, 8:46am UTC](https://forums.percona.com/t/percona-for-mongodb-inmemory-storage-engine-performance-expectations/6103 "2018-01-19T08:46:23Z")
Hi, i have a replica set with 2 inMemory (primary and secondary) and 1 WiredTiger (Hidden) and i was expecting a huge performance impact without indexing all queries with this setup because of the in-memory engine but wh… --- ## [Keep alive setting for MongoDB](https://forums.percona.com/t/keep-alive-setting-for-mongodb/6073)
**Author:** [@aforolt](https://forums.percona.com/u/aforolt)\ **Replies:** 1\ **Last updated:** [December 29, 2017, 10:34am UTC](https://forums.percona.com/t/keep-alive-setting-for-mongodb/6073 "2017-12-29T10:34:41Z")
Noob here. I am wondering if there is any connection keep alive setting for Mongodb. We are seeing a lot of connections being opened from the application and not closing gracefully even after the session is closed. We ha… --- ## [Percona Server for MongoDB 3.2.18-3.9 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-2-18-3-9-is-now-available/6079)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [December 14, 2017, 10:13am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-2-18-3-9-is-now-available/6079 "2017-12-14T10:13:21Z")
Percona announces the release of Percona Server for MongoDB 3.2.18-3.9 on December 11, 2017. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an e… --- ## [Percona Server for MongoDB 3.2.17-3.8 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-2-17-3-8-is-now-available/5970)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [November 2, 2017, 7:30am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-2-17-3-8-is-now-available/5970 "2017-11-02T07:30:16Z")
Percona announces the release of Percona Server for MongoDB 3.2.17-3.8 on October 31, 2017. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an en… --- ## [Percona Server for MongoDB 3.4.9-2.9 is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-4-9-2-9-is-now-available/5962)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [October 30, 2017, 6:08am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-4-9-2-9-is-now-available/5962 "2017-10-30T06:08:10Z")
Percona announces the release of Percona Server for MongoDB 3.4.9-2.9 on October 26, 2017. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enh… --- ## [Does Percona MongoDB still use Ark consensus algorithm ?](https://forums.percona.com/t/does-percona-mongodb-still-use-ark-consensus-algorithm/5930)
**Author:** [@brew74](https://forums.percona.com/u/brew74)\ **Replies:** 2\ **Last updated:** [October 12, 2017, 7:19am UTC](https://forums.percona.com/t/does-percona-mongodb-still-use-ark-consensus-algorithm/5930 "2017-10-12T07:19:13Z")
I have seen the a few blogs about Ark consensus algorithm Percona server adopted. \[url\]https://www.percona.com/blog/2014/07/18/introducing-ark-a-consensus-algorithm-for-tokumx-and-mongodb/\[/url\] \[url\]https://www.percon… --- ## [Need help with configuring percona server for mongodb with microsoft active directory](https://forums.percona.com/t/need-help-with-configuring-percona-server-for-mongodb-with-microsoft-active-directory/5885)
**Author:** [@raviprakash244](https://forums.percona.com/u/raviprakash244)\ **Replies:** 1\ **Last updated:** [October 3, 2017, 2:52am UTC](https://forums.percona.com/t/need-help-with-configuring-percona-server-for-mongodb-with-microsoft-active-directory/5885 "2017-10-03T02:52:25Z")
We are using Microsoft AD as ldap server and trying to integrate with mongodb. I got stuck at testsaslauthd as it keeps failing. I am using RHEL 7.2 any help please …? --- ## [Percona Server for MongoDB 3.4.7-1.8 is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-4-7-1-8-is-now-available/5904)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [October 2, 2017, 6:47am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-4-7-1-8-is-now-available/5904 "2017-10-02T06:47:10Z")
Percona announces the release of Percona Server for MongoDB 3.4.7-1.8 on September 14, 2017. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an e… --- ## [Percona Server for MongoDB 3.2.16-3.7 Is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-2-16-3-7-is-now-available/5903)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [October 2, 2017, 6:46am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-2-16-3-7-is-now-available/5903 "2017-10-02T06:46:08Z")
Percona announces the release of Percona Server for MongoDB 3.2.16-3.7 on September 27, 2017. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an … --- ## [Secondaries do not allow reads while applying the write operations](https://forums.percona.com/t/secondaries-do-not-allow-reads-while-applying-the-write-operations/5878)
**Author:** [@mipa](https://forums.percona.com/u/mipa)\ **Replies:** 0\ **Last updated:** [September 24, 2017, 11:34pm UTC](https://forums.percona.com/t/secondaries-do-not-allow-reads-while-applying-the-write-operations/5878 "2017-09-24T23:34:54Z")
Hi, we’re running a sharded cluster and while the range deleter is running (after migration) it seems that all connections and queries on the secondaries are frozen (lockwait). Since the delete takes up to 15 or 20 mi… --- ## [Auditing: logout](https://forums.percona.com/t/auditing-logout/5873)
**Author:** [@MaxCor](https://forums.percona.com/u/MaxCor)\ **Replies:** 0\ **Last updated:** [September 21, 2017, 10:33am UTC](https://forums.percona.com/t/auditing-logout/5873 "2017-09-21T10:33:52Z")
Hi, I’m trying to audit logout events in a sharded cluster with no luck! I can audit logon events of cours… and everything else but logout events. Please help… --- ## [Too many connections](https://forums.percona.com/t/too-many-connections/5695)
**Author:** [@pssnyman](https://forums.percona.com/u/pssnyman)\ **Replies:** 1\ **Last updated:** [September 19, 2017, 3:05am UTC](https://forums.percona.com/t/too-many-connections/5695 "2017-09-19T03:05:11Z")
Ever since upgrading to Percona 5.7 (from 5.6) we’ve been getting a lot of “Too many connections” messages from one of our rails apps. I’ve increased the max\_connection from 256 to 1024 with no effect. Is there anything … --- ## [MongoRocks storage.rocksdb.cacheSizeGB default value](https://forums.percona.com/t/mongorocks-storage-rocksdb-cachesizegb-default-value/5816)
**Author:** [@Hu\_Hailin](https://forums.percona.com/u/Hu_Hailin)\ **Replies:** 0\ **Last updated:** [August 17, 2017, 9:48pm UTC](https://forums.percona.com/t/mongorocks-storage-rocksdb-cachesizegb-default-value/5816 "2017-08-17T21:48:24Z")
\[url\]https://github.com/mongodb-partners/mongo-rocks/wiki\[/url\] says By default 50% of RAM. \[url\]https://www.percona.com/doc/percona-server-for-mongodb/3.2/mongorocks.html\[/url\] says 30% of physical memory. I didn’t … --- ## [mongodb community Performance Tuning](https://forums.percona.com/t/mongodb-community-performance-tuning/5726)
**Author:** [@mssatheesh87](https://forums.percona.com/u/mssatheesh87)\ **Replies:** 1\ **Last updated:** [August 4, 2017, 5:31am UTC](https://forums.percona.com/t/mongodb-community-performance-tuning/5726 "2017-08-04T05:31:12Z")
Hi, i am trying to create 1lakh connection but mongod service disconnecting while it reaches 32,000 … and query processing also in low count … any ideas ? PFA … My Server has 16GB RAM with 8 core processor… --- ## [Percona Server for MongoDB 3.4.6-1.6 is Now Available](https://forums.percona.com/t/percona-server-for-mongodb-3-4-6-1-6-is-now-available/5779)
**Author:** [@hrvojem](https://forums.percona.com/u/hrvojem)\ **Replies:** 0\ **Last updated:** [July 31, 2017, 3:57am UTC](https://forums.percona.com/t/percona-server-for-mongodb-3-4-6-1-6-is-now-available/5779 "2017-07-31T03:57:56Z")
Percona announces the release of Percona Server for MongoDB 3.4.6-1.6 on July 27, 2017. Download the latest version from the Percona web site or the Percona Software Repositories. Percona Server for MongoDB is an enhanc… --- ## [tokumx - opsmanager](https://forums.percona.com/t/tokumx-opsmanager/5712)
**Author:** [@scar2yjs](https://forums.percona.com/u/scar2yjs)\ **Replies:** 1\ **Last updated:** [July 4, 2017, 12:45am UTC](https://forums.percona.com/t/tokumx-opsmanager/5712 "2017-07-04T00:45:31Z")
hi im using tokumx (TokuMX mongo shell v2.0.2-mongodb-2.4.10) on AWS EC2 env. can i use opsmanager docker container (\[url\]https://docs.opsmanager.mongodb.com/current/application/\[/url\]) for toku backup, restore, monito… [Previous page](https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=11) [Next page](https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=13)