Refactor the config for log dir of FE and BE
TLDR:
- Use env variable `LOG_DIR` to set root log dir
- Remove `sys_log_dir` for FE and BE
Details:
1. FE
1. The root log dir is set by env variable `LOG_DIR` in `fe.conf`
2. The default value of `audit_log_dir` is same as `${LOG_DIR}/`
3. The default value of `spark_launcher_log_dir` is `${LOG_DIR}/spark_launcher_log`
4. The default value of `nereids_trace_log_dir` is `${LOG_DIR}/nereids_trace_log`
5. The origin `sys_log_dir` is deprecated, and default value is `""`.
But for compatibility, if user already set `sys_log_dir` before, Doris will still use it as root log dir.
2. BE
1. The root log dir is set by env variable `LOG_DIR` in `be.conf`
2. Remove `pipeline_tracing_log_dir`, use `${LOG_DIR}` directly.
3. The origin `sys_log_dir` is deprecated, and default value is `""`.
But for compatibility, if user already set `sys_log_dir` before, Doris will still use it as root log dir.
tc/jemalloc_free_memory in web beip:8040/mem_tracker is the cache size of Jemalloc.
Previously lg_tcache_max:20, this will cache up to 1M Bin in the thread cache, which will cause the Jemalloc cache to be too large in some scenarios.
Restore the default lg_tcache_max:16, which can cache a maximum of 64K Bins.
If you are doing a performance POC, you can consider increasing it.
1. Introduce hadoop libhdfs
2. For Linux-X86 platform, use the hadoop libhdfs
3. For other platform, use libhdfs3, because currently we don't have hadoop libhdfs binary for other platform
Co-authored-by: adonis0147 <adonis0147@gmail.com>
This reverts part of commit 11ec38dd6fd9f86632d83c47bd9d8bc05db69a2b(#6736)
Because it will cause view query problem described in #6792
The following bug fix kept:
1. Fix the problem that the WITH statement cannot be printed when UNION is included in SQL
1. Change word of palo to doris in conf file.
2. Set default meta_dir to ${DORIS_HOME}/doris-meta
3. Comment out FE meta_dir, leave it to ${DORIS_HOME}/doris-meta, as exsting in FE Config.java.
4. Comment out BE storage_root_path, leave it to ${DORIS_HOME}/storage, as exsting in BE config.h.
NOTICE: default config is changed.
1. ix bugs in query layer.
2. remove some redundant code in BE
3. support specify multi helper node when starting FE
4. add proc 'cluster_load_statistic' to show load balance situation of Palo
Add new features:
1. plugins of Ambari and k8s deploy
2. specified config 'priority_network' to solve some ip problems
Fix bugs:
fix bugs that rebalance does not work in some case.
fix count(*) from union stmt bug
fix some union stmt bugs
fix bugs when try to schema change a clone replica
