From /var/log/dremio/server.out
*** Error in `/usr/java/jdk1.8.0_191-amd64/jre/bin/java’: free(): invalid next size (normal): 0x00007f0a4f7218a0 ***
======= Backtrace: =========
/lib64/libc.so.6(+0x81499)[0x7f0aae69d499]
/tmp/mapr-mapr-libMapRClient.5.2.2.201801021050-mapr.so(Java_com_mapr_fs_jni_Page_releaseMemory+0x100)[0x7f0a76bb3a60]
[0x7f0a9b212342]
======= Memory map: ========
Dremio Daemon Started as master
SLF4J: Failed to load class “org.slf4j.impl.StaticLoggerBinder”.
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
java: fs/client/fileclient/cc/client.cc:5297: int mapr::fs::MapClient::ReadRPC(mapr::fs::Inode*, uint64_t, uint32_t, uint64_t, int, iovec*, bool*, mapr::fs::SecondaryFid*, uint64_t*, mapr::fs::FidMsg*, const char*, uint64_t, mapr::fs::Inode**): Assertion `0’ failed.
@jmillet what version of MapR and Dremio are you on? IIRC - the particular issue the original poster faced is running into a non-fully supported version of MapR 6
For the Dremio node that is crashing, can you please look in your server.log and server.out for an entry for a heap dump file. Will be java_pid_<pid_no>.hprof. Also under your log folder see if any hprof files are there
You can also look at the server.gc file under the log folder for consecutive 'Full GC"
Kindly let me know what you find and I will suggest next steps
We are not using MapR, we have an Stand alone installation and we use HDFS as our main data source.
The Dremio version is 2.0.5-201806021755080191-767cfb5
We will add 3 additional executors nodes to be sure they are exhausted.
@jmillet it seems like your issue may be a completely different issue than. May I recommend upgrading to latest version 3.0.6? If the issue still persists, please make a new thread (since the issues are probably different) and attach server.out and server.log
Just in case this helps anyone, agree with Anthony, the issue originally raised here was only relevant to MapR. At the end, we found that the version of Dremio that we were running was not compatible with MapR 6.1. Dremio was using outdated jars to interact with MapR