SOLVED Unable to install grpc via PECL

[4u123]

Having problems installing the grpc module. Gettting the following errors...

/root/tmp/pear/grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc:279:49: error: no matching function for call to 'StrFormat(const char [30], const string&, grpc_core::GrpcLbClientStats*)'

/root/tmp/pear/grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc:279:49: note: mismatched types 'absl::lts_2020_09_23::FormatSpec<Args ...>' and 'const char [30]'

/root/tmp/pear/grpc/third_party/abseil-cpp/absl/strings/str_format.h:338:34: note: template argument deduction/substitution failed:
/root/tmp/pear/grpc/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.cc:527:72: note: mismatched types 'absl::lts_2020_09_23::FormatSpec<Args ...>' and 'const char [20]'

make: *** [src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.lo] Error 1

I've had a dig around and can't find anything obvious. I was hoping someone else may have had this same issue and has resolved it. Many thanks.

 

[cPRex]

Hey there! I have run into this one before, and it's an issue with the version of GRPC having a conflict with the GCC libraries on the system. If we check the version of GRPC that will be installed, we'll see this:

# /opt/cpanel/ea-php72/root/usr/bin/pecl search grpc
WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
Retrieving data...0%
Matched packages, channel pecl.php.net:
=======================================
Package Stable/(Latest) Local
gRPC    1.35.0 (stable)       A high performance, open source, general RPC framework that puts mobile and HTTP/2 first.

If we check the installation requirements here:

Documentation

A high-performance, open source universal RPC framework

grpc.io

we'll see you need GCC 4.9, which is not available in CentOS 7 at this time:

[[email protected] ~]# rpm -qa | grep gcc
gcc-c++-4.8.5-44.el7.x86_64
libgcc-4.8.5-44.el7.x86_64
gcc-4.8.5-44.el7.x86_64

I did check a CentOS 8 machine and that would meet the requirements, but you'd need to manually install an earlier version of grpc tools in order to get that working as it is not recommended to try and update the GCC package outside of what CentOS/CloudLinux provides.

 

[4u123]

Great response, thanks for your help!

 

[cPRex]

Sure thing!!!

 

[fisec77933]

root/tmp/pear/grpc/third_party/boringssl-with-bazel/src/include -I/root/tmp/pear/grpc/third_party/re
2 -I/root/tmp/pear/grpc/third_party/upb -I/root/tmp/pear/grpc/third_party/xxhash -DHAVE_CONFIG_H -st
d=c++11 -fno-exceptions -fno-rtti -g -O2 -c /root/tmp/pear/grpc/src/core/ext/filters/client_channel/
backend_metric.cc -fPIC -DPIC -o src/core/ext/filters/client_channel/.libs/backend_metric.o
In file included from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/lb_policy.h:31:0,
from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/backend_metric.h:24,
from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/backend_metric.cc:19:
/root/tmp/pear/grpc/src/core/ext/filters/client_channel/server_address.h: In member function 'virtua
l std::string grpc_core::ServerAddressWeightAttribute::ToString() const':
/root/tmp/pear/grpc/src/core/ext/filters/client_channel/server_address.h:135:41: error: no matching
function for call to 'StrFormat(const char [3], const uint32_t&)'
return absl::StrFormat("%d", weight_);
^
/root/tmp/pear/grpc/src/core/ext/filters/client_channel/server_address.h:135:41: note: candidate is:

In file included from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/server_address.h:28:0,

from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/lb_policy.h:31,
from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/backend_metric.h:24,
from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/backend_metric.cc:19:
/root/tmp/pear/grpc/third_party/abseil-cpp/absl/strings/str_format.h:338:34: note: template std::string absl::lts_20210324::StrFormat(absl::lts_20210324::FormatSpec&, const A
rgs& ...)
ABSL_MUST_USE_RESULT std::string StrFormat(const FormatSpec& format,
^
/root/tmp/pear/grpc/third_party/abseil-cpp/absl/strings/str_format.h:338:34: note: template argume
nt deduction/substitution failed:
In file included from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/lb_policy.h:31:0,
from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/backend_metric.h:24,
from /root/tmp/pear/grpc/src/core/ext/filters/client_channel/backend_metric.cc:19:
/root/tmp/pear/grpc/src/core/ext/filters/client_channel/server_address.h:135:41: note: mismatched
types 'absl::lts_20210324::FormatSpec' and 'const char [3]'
return absl::StrFormat("%d", weight_);
^
make: *** [src/core/ext/filters/client_channel/backend_metric.lo] Error 1
ERROR: `make' failed

 

[fisec77933]

I am facing this error how can I fix
any idea?

 

[cPRex]

@fisec77933 - it looks like this may be a different issue than the original post. Are you trying this work in CentOS 8?

 

[fisec77933]

@cPRex I am trying on centos 7

 

[cPRex]

You have to be running CentOS 8 in order for the installation to work properly.

 

[fisec77933]

Thank You it's working on centos 8

 

[cPRex]

I'm glad that's working well!