# Percona Server for MongoDB **URL:** https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=14 [Latest](https://forums.percona.com/latest.md) · [Categories](https://forums.percona.com/categories.md) · [Tags](https://forums.percona.com/tags.md) **Page:** 15 --- ## [MongoDB server freeze - large amount of collections](https://forums.percona.com/t/mongodb-server-freeze-large-amount-of-collections/4929)
**Author:** [@Lukasz](https://forums.percona.com/u/Lukasz)\ **Replies:** 0\ **Last updated:** [June 15, 2016, 3:32am UTC](https://forums.percona.com/t/mongodb-server-freeze-large-amount-of-collections/4929 "2016-06-15T03:32:21Z")
We have large MongoDB database (about 1,4mln collections), MongoDB 3.0, engine rocksDB, operating system Ubuntu 14.04. This DB is located on virtual machine (VmWare vCloud) with 16 cores and 108 GB RAM (currently mongoD… --- ## [Server not working after VM image copy.](https://forums.percona.com/t/server-not-working-after-vm-image-copy/4901)
**Author:** [@quilombodigital](https://forums.percona.com/u/quilombodigital)\ **Replies:** 0\ **Last updated:** [May 24, 2016, 12:01pm UTC](https://forums.percona.com/t/server-not-working-after-vm-image-copy/4901 "2016-05-24T12:01:48Z")
this is what happens at the console: show dbs; Tue May 24 14:15:32.727 listDatabases failed:{ “errmsg” : “exception: dictionary XXXXXXXXXXXXXX should exist, but we got ENOENT”, “code” : 16988, “ok” : 0 } at /mnt/wo… --- ## [Percona Server for mongodb crash](https://forums.percona.com/t/percona-server-for-mongodb-crash/4859)
**Author:** [@pareshp](https://forums.percona.com/u/pareshp)\ **Replies:** 6\ **Last updated:** [May 4, 2016, 11:48pm UTC](https://forums.percona.com/t/percona-server-for-mongodb-crash/4859 "2016-05-04T23:48:49Z")
I have PSMDB 3.0.10-1.5 with PerconaFT engine running on CentOS 6.7 kernel 2.6.32-573.22.1.el6.x86\_64. System has 24GB RAM and 8 cores of CPU. Here is my mongod configuration file: dbpath = /data/db storageEngine = Pe… --- ## [How to check whether percona-server for mongodb is installed properly and running](https://forums.percona.com/t/how-to-check-whether-percona-server-for-mongodb-is-installed-properly-and-running/4839)
**Author:** [@dnguyen](https://forums.percona.com/u/dnguyen)\ **Replies:** 1\ **Last updated:** [April 24, 2016, 10:33pm UTC](https://forums.percona.com/t/how-to-check-whether-percona-server-for-mongodb-is-installed-properly-and-running/4839 "2016-04-24T22:33:16Z")
Installed percona-server-mongodb-3.0.10-1.5-r376fb62-trusty-amd64 on a Ubuntu 14.04 server. After the installation, the dpkg check (dpkg -l | grep percona) shows the following: ii percona-server-mongodb 3.0.10-1.5.… --- ## [Partitions in Percona-Server-MongoDB-3.0.10 working?](https://forums.percona.com/t/partitions-in-percona-server-mongodb-3-0-10-working/4831)
**Author:** [@Thomas\_Hofer](https://forums.percona.com/u/Thomas_Hofer)\ **Replies:** 0\ **Last updated:** [April 11, 2016, 5:31am UTC](https://forums.percona.com/t/partitions-in-percona-server-mongodb-3-0-10-working/4831 "2016-04-11T05:31:20Z")
I’m testing Percona-Server-MongoDB-3.0.10 and installed the RPMs for CentOS / Redhat 7 from the download page. Creating a partitioned collection seems to work, but when I try to create a new partition or query informati… --- ## [Crash during index building (out of mem)](https://forums.percona.com/t/crash-during-index-building-out-of-mem/4798)
**Author:** [@Miseas](https://forums.percona.com/u/Miseas)\ **Replies:** 1\ **Last updated:** [March 22, 2016, 1:02pm UTC](https://forums.percona.com/t/crash-during-index-building-out-of-mem/4798 "2016-03-22T13:02:34Z")
Hi, I’m trying to update from tokumx to PSMDB (3.0.9-1.4) and when I try to create an index, during the process mongod begin to use more and more memory, until it run out of memory and crash. I tried several times with … --- ## [Percona audit filter and parameter](https://forums.percona.com/t/percona-audit-filter-and-parameter/4762)
**Author:** [@mmarchet](https://forums.percona.com/u/mmarchet)\ **Replies:** 4\ **Last updated:** [March 21, 2016, 10:50am UTC](https://forums.percona.com/t/percona-audit-filter-and-parameter/4762 "2016-03-21T10:50:38Z")
Hello, I’m trying to use filters with auditLog, and I’m currently facing an issue : I’d like to print only commands like “insert”, “delete”, “update” from a precise database in my log file. I tried few things, but none… --- ## [PSMDB crashing when modify user password if audit enable](https://forums.percona.com/t/psmdb-crashing-when-modify-user-password-if-audit-enable/4755)
**Author:** [@goldstrike](https://forums.percona.com/u/goldstrike)\ **Replies:** 4\ **Last updated:** [March 14, 2016, 9:40pm UTC](https://forums.percona.com/t/psmdb-crashing-when-modify-user-password-if-audit-enable/4755 "2016-03-14T21:40:17Z")
Need help. Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-79-generic x86\_64) percona-server-mongodb-server 3.0.8-1.3.trusty Enable audit function as /etc/init.d/mongod script. DAEMON\_OPTS=“${OPTIONS} --auditDestination file --… --- ## [Compile failed with PSMDB 3.0.9-1.4](https://forums.percona.com/t/compile-failed-with-psmdb-3-0-9-1-4/4772)
**Author:** [@goldstrike](https://forums.percona.com/u/goldstrike)\ **Replies:** 2\ **Last updated:** [March 13, 2016, 7:53am UTC](https://forums.percona.com/t/compile-failed-with-psmdb-3-0-9-1-4/4772 "2016-03-13T07:53:06Z")
My OS is Ubuntu 14.04.4 LTS (GNU/Linux 3.13.0-79-generic x86\_64) I use “scons all” command to build percona-server-mongodb-3.0.9-1.4 but failed. the error response is following, Is there anyone who can help me? g++ -o… --- ## [documentation perconaFT server parameters](https://forums.percona.com/t/documentation-perconaft-server-parameters/4719)
**Author:** [@mipa](https://forums.percona.com/u/mipa)\ **Replies:** 2\ **Last updated:** [March 8, 2016, 6:32pm UTC](https://forums.percona.com/t/documentation-perconaft-server-parameters/4719 "2016-03-08T18:32:33Z")
Hi, I’m missing documentation about available server parameters for perconaFT engine as well as parameters for Collections and Indexes, like they existed with TokuMX? Aren’t there any parameters any more to be changed/… --- ## [PSMDB vs TokuMX](https://forums.percona.com/t/psmdb-vs-tokumx/4651)
**Author:** [@grumpyguy](https://forums.percona.com/u/grumpyguy)\ **Replies:** 3\ **Last updated:** [February 29, 2016, 2:36pm UTC](https://forums.percona.com/t/psmdb-vs-tokumx/4651 "2016-02-29T14:36:48Z")
Any benchmarks of performance between PSMDB and latest TokuMX? --- ## [TokuMX: Wrong collection size & document count](https://forums.percona.com/t/tokumx-wrong-collection-size-document-count/4676)
**Author:** [@niraj](https://forums.percona.com/u/niraj)\ **Replies:** 4\ **Last updated:** [February 26, 2016, 8:27am UTC](https://forums.percona.com/t/tokumx-wrong-collection-size-document-count/4676 "2016-02-26T08:27:36Z")
Per official documentation… “TokuMX does not require routine maintenance to deal with fragmentation, as performance remains steady through heavy usage. Data does not ever need to be compacted, repaired, or re-indexed to … --- ## [TokuMX 2.0.0 Crash](https://forums.percona.com/t/tokumx-2-0-0-crash/4727)
**Author:** [@zoharby](https://forums.percona.com/u/zoharby)\ **Replies:** 1\ **Last updated:** [February 18, 2016, 8:45am UTC](https://forums.percona.com/t/tokumx-2-0-0-crash/4727 "2016-02-18T08:45:53Z")
Hi, We have a cluster where the master runs TokuMX 2.0.0, and one of the slaves runs TokuMX 2.0.1 (probably not a good practice…) I connected to the shell of the slave, and it seems the master crashed just around this … --- ## [Max number of collections / indexes with PerconaFT](https://forums.percona.com/t/max-number-of-collections-indexes-with-perconaft/4706)
**Author:** [@flozano](https://forums.percona.com/u/flozano)\ **Replies:** 1\ **Last updated:** [February 11, 2016, 8:44am UTC](https://forums.percona.com/t/max-number-of-collections-indexes-with-perconaft/4706 "2016-02-11T08:44:22Z")
I’ve tried to find the information myself but I couldn’t, so here it goes: What is the max number of collections+indexes a single node can have when using PerconaFT? WiredTiger uses file per collection + file per index,… --- ## [can't add arbiter](https://forums.percona.com/t/cant-add-arbiter/4707)
**Author:** [@pocket5s](https://forums.percona.com/u/pocket5s)\ **Replies:** 1\ **Last updated:** [February 11, 2016, 7:52am UTC](https://forums.percona.com/t/cant-add-arbiter/4707 "2016-02-11T07:52:20Z")
Trying to add an arbiter to a cluster and when I do I get this response: { “ok” : 0, “errmsg” : “PerconaFT: internal error code 28: unknown ft error”, “code” : 1 } --- ## [Cluster crashing quite often](https://forums.percona.com/t/cluster-crashing-quite-often/4691)
**Author:** [@pocket5s](https://forums.percona.com/u/pocket5s)\ **Replies:** 5\ **Last updated:** [January 28, 2016, 1:38pm UTC](https://forums.percona.com/t/cluster-crashing-quite-often/4691 "2016-01-28T13:38:08Z")
In preparation for migrating our tokumx prod cluster to mongo3 cluster and before our percona visit in a couple weeks, we decided to stand up a dev and qa cluster. This was done this week and it is quite unstable, crashi… --- ## [Percona TokuMX Enterprise Source?](https://forums.percona.com/t/percona-tokumx-enterprise-source/4588)
**Author:** [@abhirao](https://forums.percona.com/u/abhirao)\ **Replies:** 1\ **Last updated:** [January 21, 2016, 7:55am UTC](https://forums.percona.com/t/percona-tokumx-enterprise-source/4588 "2016-01-21T07:55:25Z")
Hi, This blog post (\[url\]https://www.percona.com/blog/2015/09/10/percona-tokumx-2-0-2-is-now-available/\[/url\]) stated that TokuMX Enterprise is now open source but I only see packages. I was wondering if/where the sourc… --- ## [Mongorestore hangs restoring a MongoDB 2.6 dump to a PS for MongoDB 3.0.8 wiredTiger](https://forums.percona.com/t/mongorestore-hangs-restoring-a-mongodb-2-6-dump-to-a-ps-for-mongodb-3-0-8-wiredtiger/4657)
**Author:** [@i90rr](https://forums.percona.com/u/i90rr)\ **Replies:** 1\ **Last updated:** [January 11, 2016, 11:15am UTC](https://forums.percona.com/t/mongorestore-hangs-restoring-a-mongodb-2-6-dump-to-a-ps-for-mongodb-3-0-8-wiredtiger/4657 "2016-01-11T11:15:23Z")
Hi all, We are trying to migrate our MongoDB databases but we’re stuck with this issue that seems to occur randomly; some times it hits in an early stage of the restore process, some other times it hits well beyond half… --- ## [Issues running 3.0.8 on CentOS 6](https://forums.percona.com/t/issues-running-3-0-8-on-centos-6/4648)
**Author:** [@vchav73](https://forums.percona.com/u/vchav73)\ **Replies:** 4\ **Last updated:** [January 9, 2016, 9:40am UTC](https://forums.percona.com/t/issues-running-3-0-8-on-centos-6/4648 "2016-01-09T09:40:02Z")
Hi, I have a Vagrant box I’m trying to install Percona Server for MongoDB on. I run “yum install Percona-Server-MongoDB -y” then “service mongod start” but I get the following: \[root@localhost vagrant\]# service mongod … --- ## [PSMDB oplog format](https://forums.percona.com/t/psmdb-oplog-format/4650)
**Author:** [@grumpyguy](https://forums.percona.com/u/grumpyguy)\ **Replies:** 3\ **Last updated:** [January 7, 2016, 2:12pm UTC](https://forums.percona.com/t/psmdb-oplog-format/4650 "2016-01-07T14:12:41Z")
Using PSMDB with PerconaFT storage engine - what format will the oplog be in? - MongoDB or Tokumx or something else? --- ## [MongoDb Migration](https://forums.percona.com/t/mongodb-migration/4642)
**Author:** [@pthiers](https://forums.percona.com/u/pthiers)\ **Replies:** 1\ **Last updated:** [January 5, 2016, 2:04pm UTC](https://forums.percona.com/t/mongodb-migration/4642 "2016-01-05T14:04:51Z")
Hey there I wanted to know, if we have to do something to migrate data from engine MMAPv1 to perconaFT? --- ## [insert/update performace after upgrading from tokumx](https://forums.percona.com/t/insert-update-performace-after-upgrading-from-tokumx/4580)
**Author:** [@pocket5s](https://forums.percona.com/u/pocket5s)\ **Replies:** 1\ **Last updated:** [December 9, 2015, 9:27am UTC](https://forums.percona.com/t/insert-update-performace-after-upgrading-from-tokumx/4580 "2015-12-09T09:27:43Z")
I recently upgraded our dev and qa environment from tokumx 2.4 to psmd and our insert/update performance has gone into the tank. There are two collections. The first is roughly 12,400 records that get updated. the second… --- ## [Transactions in PSMDB](https://forums.percona.com/t/transactions-in-psmdb/4554)
**Author:** [@mzygmunt](https://forums.percona.com/u/mzygmunt)\ **Replies:** 1\ **Last updated:** [November 30, 2015, 9:12am UTC](https://forums.percona.com/t/transactions-in-psmdb/4554 "2015-11-30T09:12:57Z")
Hello, When can I expect the implementation of the transactions’ mechanism in the PSMDB? Whether it is on a road map in the near future? Best regards, Mateusz Zygmunt --- ## [Monitoring tools for TokuMX](https://forums.percona.com/t/monitoring-tools-for-tokumx/4542)
**Author:** [@Manoj\_Kumar\_A.S](https://forums.percona.com/u/Manoj_Kumar_A.S)\ **Replies:** 1\ **Last updated:** [November 24, 2015, 12:45pm UTC](https://forums.percona.com/t/monitoring-tools-for-tokumx/4542 "2015-11-24T12:45:55Z")
Hello, We are trying to use TokuMX in our prod environment in the near future. So doing some R&D about it. I would like to know, if there is any specific monitoring tools for TokuMX? If yes, What are the recommended t… --- ## [Tokumx process dies without warning](https://forums.percona.com/t/tokumx-process-dies-without-warning/4518)
**Author:** [@mfractal](https://forums.percona.com/u/mfractal)\ **Replies:** 4\ **Last updated:** [November 18, 2015, 2:38am UTC](https://forums.percona.com/t/tokumx-process-dies-without-warning/4518 "2015-11-18T02:38:44Z")
Hi all. We run a 3 member replicaset of tokumx 2.0.2 servers each with 60gb ram (r3.2xlarge instances) Ever since upgrading to version 2.0.2 we get this random issue where the mongod process dies. Last messages in tok… --- ## [Capped delete optimizer](https://forums.percona.com/t/capped-delete-optimizer/4479)
**Author:** [@priorjs](https://forums.percona.com/u/priorjs)\ **Replies:** 0\ **Last updated:** [October 27, 2015, 2:59pm UTC](https://forums.percona.com/t/capped-delete-optimizer/4479 "2015-10-27T14:59:30Z")
Hi, I’ve been testing out the RC as I like the theory behind fractal tree indexes, so would prefer to use that storage engine if possible. Initial testing bears out the theory well in that we can do many more inserts pe… [Previous page](https://forums.percona.com/c/mongodb/percona-server-for-mongodb/17.md?page=13)